[Feature][T106_eSDK]17.09(SDK4.8)diff_19.00(SDK5.0)
Only Configure: No
Affected branch: master
Affected module: unknow
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update: No
Change-Id: I768f6d42285f04acf919b9f8f6cd34af460c3ef4
diff --git a/upstream/linux-5.10/drivers/net/ethernet/zte/zx29_gmac.c b/upstream/linux-5.10/drivers/net/ethernet/zte/zx29_gmac.c
new file mode 100755
index 0000000..668d9d9
--- /dev/null
+++ b/upstream/linux-5.10/drivers/net/ethernet/zte/zx29_gmac.c
@@ -0,0 +1,2063 @@
+/*
+ * Ethernet driver for zte zx2975xx gmac on chip network device
+ * (c)2008 http://www.zte.com.cn
+ * Authors: zhang dongdong <zhang.dongdong16@zte.com.cn>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/phy.h>
+#include <linux/platform_device.h>
+#include <linux/gmac/gmac.h>
+#include <linux/of.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
+#include <linux/device.h>
+#include "zx29_gmac.h"
+
+#define gmac_printk(_format, _args...) do{printk(KERN_INFO"gmac," _format "\n",##_args);}while(0)
+
+static u8 zx29_gmac_addr[MAC_ADDR_LENTH] = {0xec,0x1d,0x7f,0xb0,0x2f,0x32};
+static struct tasklet_struct *g_gmac_tasklet = NULL;
+/*struct zx29_gmac_dev *g_gmac_dev = NULL; */ /* no use possible */
+extern void gmac_event_notify(GMAC_NOTIFY_EVENT notify_type, void* puf);
+extern int gmac_event_init(const char *name);
+static void gmac_hw_deinit(struct net_device *dev);
+//extern void v7_dma_map_area(const void *, size_t, int);
+//extern unsigned long virt_to_phys_ap(unsigned long virt);
+extern void dma_map(const void *addr, size_t len, int flags);
+extern unsigned long virt_to_phys_ap_new(unsigned long virt_addr);
+extern void kobj_gmac_del(struct kobject *kobject);
+
+
+void dump_pkt_trace(unsigned char *data,int len)
+{
+ int i;
+ len = len > 128?128:len;
+ printk("********************\n");
+ for(i=0;i<len;i++){
+ printk("%.2x ",data[i]);
+ if((i&0xf) == 0xf)
+ printk("\n");
+ }
+ printk("\n");
+ printk("********************\n");
+}
+
+static u32 zx29_gmac_get_link(struct net_device *dev)
+{
+ struct zx29_gmac_dev* prv = (struct zx29_gmac_dev*)netdev_priv(dev);
+
+ return prv->link.isup;
+}
+
+
+static void gmac_start(void* io)
+{
+ volatile unsigned *gmac = (unsigned*)io;
+
+ mac_int_enable();
+ dma_enable();
+ mac_enable();
+}
+
+static inline int mod_sub(int left, int right, int mod)
+{
+ return (mod - right + left) % mod;
+}
+
+static struct bd_tx *get_txed_bd(struct net_device *ndev)
+{
+ struct bd_tx *d;
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ int n = priv->txed_bd;
+
+ d = (struct bd_tx *)priv->dma_tx_vir;
+
+ if (n == priv->tx_bd_offset)
+ return 0;
+
+ if (d[n].TDES0 & DMA_OWNER)
+ return 0;
+
+ if (d[n].skb == NULL)
+ return 0;
+
+ priv->txed_bd++;
+ priv->txed_bd %= GMAC_TX_BD_NUM;
+
+ return &d[n];
+}
+
+static inline struct bd_tx *get_tx_bd(struct net_device *ndev)
+{
+ struct zx29_gmac_dev* priv = (struct zx29_gmac_dev*)netdev_priv(ndev);
+ int n = priv->tx_bd_offset;
+ struct bd_tx *d = (struct bd_tx*)priv->dma_tx_vir;
+
+ if (mod_sub(priv->tx_bd_offset, priv->txed_bd, GMAC_TX_BD_NUM) > GMAC_TX_BD_NUM - 2)
+ return 0;
+
+ if (d[n].TDES0 & DMA_OWNER) {
+ return 0;
+ } else {
+ return &d[n];
+ }
+}
+
+static struct bd_rx *get_rx_bd(struct net_device *dev)
+{
+ struct zx29_gmac_dev* prv = (struct zx29_gmac_dev*)netdev_priv(dev);
+ int n = prv->rx_bd_offset;
+ struct bd_rx *d = (struct bd_rx*)prv->dma_rx_vir;
+
+ if(d[n].RDES0 & DMA_OWNER)
+ {
+ return 0;
+ }
+ else
+ {
+ return &d[n];
+ }
+}
+
+static void gmac_trig_transmit(void *io)
+{
+ volatile unsigned *gmac = (unsigned *)io;
+ register unsigned status = ((MAC(0x1014) >> 20) & 0x07);
+ switch (status) {
+ case 0:
+ dma_enable();
+ break;
+ case 6:
+ dma_continue_tx();
+ break;
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ case 5:
+ case 7:
+ default:
+ break;
+
+ }
+}
+
+static void gmac_trig_receive(void *io)
+{
+ volatile unsigned *gmac = (unsigned *)io;
+ register unsigned status = ((MAC(0x1014) >> 17) & 0x07);
+ switch (status) {
+ case 0:
+ dma_enable();
+ break;
+ case 4:
+ dma_continue_rx();
+ break;
+ default:
+ break;
+ }
+}
+
+static inline void gmac_update_mac(struct net_device *ndev)
+{
+ volatile unsigned *gmac = (unsigned *)ndev->base_addr;
+ unsigned char *mac = (unsigned char*)ndev->dev_addr;
+
+ MAC(0x0044) = mac[0] | mac[1] << 8 | mac[2] << 16 | mac[3] << 24;
+ MAC(0x0040) = mac[4] | mac[5] << 8;
+}
+
+static int zx29mii_read(struct mii_bus *bus, int phy_addr, int regnum)
+{
+ unsigned long flags;
+ struct zx29_gmac_dev *prv = (struct zx29_gmac_dev *)bus->priv;
+ volatile unsigned *gmac = (unsigned *)prv->base_addr;
+
+ unsigned val = ( 1 << 0 | // busy 位
+ 0 << 1 | // R/W操作指示位
+ (PHY_CLOCK << 2) | // 时钟位
+ (regnum & 0x1F) << 6 | // 寄存器
+ (phy_addr & 0x1F) << 11); // 物理芯片
+
+ spin_lock_irqsave(&prv->lock,flags);
+ while(mac_mii_is_busy());
+ MAC(0x0010) = val;
+ spin_unlock_irqrestore(&prv->lock,flags);
+
+ while(mac_mii_is_busy());
+
+ return (MAC(0x0014) & 0xFFFF);
+}
+
+static int zx29mii_write(struct mii_bus *bus, int phy_addr, int regnum, u16 value)
+{
+ struct zx29_gmac_dev *prv = (struct zx29_gmac_dev *)bus->priv;
+ volatile unsigned *gmac = (unsigned *)prv->base_addr;
+
+ unsigned val = ( 1 << 0 | // busy 位
+ 1 << 1 | // R/W操作指示位
+ (PHY_CLOCK << 2) | // 时钟位
+ (regnum & 0x1F) << 6 | // 寄存器
+ (phy_addr & 0x1F) << 11); // 物理芯片
+
+ spin_lock_irq(&prv->lock);
+ while(mac_mii_is_busy());
+ MAC(0x0014) = value;
+ MAC(0x0010) = val;
+
+ spin_unlock_irq(&prv->lock);
+
+ while(mac_mii_is_busy());
+
+ return 0;
+}
+
+static int zx29mii_reset(struct mii_bus *bus)
+{
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)bus->priv;
+ volatile unsigned *gmac = (unsigned *)priv->base_addr;
+
+ gmac_start((void *)priv->base_addr);
+ while (mac_mii_is_busy());
+ return 0;
+}
+
+static inline void zx29_gmac_set_macaddr(struct net_device *ndev)
+{
+ int i = 0;
+#if MAC_ADDR_SET
+ for (i = 0; i < MAC_ADDR_LENTH; i++)
+ ndev->dev_addr[i] = zx29_gmac_addr[i];
+
+ if (!is_valid_ether_addr(ndev->dev_addr))
+ random_ether_addr(ndev->dev_addr);
+#else
+ random_ether_addr(ndev->dev_addr);
+#endif
+}
+
+static void zx29_gmac_tx(struct net_device *ndev)
+{
+ register unsigned status;
+ struct net_device_stats s = ndev->stats;
+ struct bd_tx *tx = get_txed_bd(ndev);
+
+
+ while (tx) {
+ status = tx->TDES0;
+
+ if (tx->TDES0 & ERR_TX_ES) {
+ s.tx_errors++;
+ if(status & ERR_TX_LC) s.tx_carrier_errors++;
+ if(status & ERR_TX_NC) s.tx_carrier_errors++;
+ if(status & ERR_TX_EC) s.tx_window_errors++;
+ if(status & ERR_TX_LATECOL) s.tx_window_errors++;
+ if(status & ERR_TX_UF) s.tx_aborted_errors++;
+ if(status & ERR_TX_ED) s.tx_aborted_errors++;
+ if(status & ERR_TX_JT) s.tx_fifo_errors++;
+ if(status & ERR_TX_FF) s.tx_fifo_errors++;
+
+ printk("%s, status=0x%x, err_cnt=%ld\n", __FUNCTION__,status, s.tx_errors);
+ }
+ dev_kfree_skb_any(tx->skb);
+ tx->skb = NULL;
+ tx = get_txed_bd(ndev);
+
+ }
+
+ if (netif_queue_stopped(ndev))
+ netif_wake_queue(ndev);
+}
+
+static int zx29_gmac_rx(struct net_device *ndev)
+{
+ struct bd_rx *rx;
+ struct sk_buff *skb;
+ struct sk_buff *skb_new;
+ unsigned len;
+ int exhausted = 0;
+
+ struct zx29_gmac_dev* priv = (struct zx29_gmac_dev*)netdev_priv(ndev);
+
+ rx = get_rx_bd(ndev);
+
+ if(unlikely(!rx)) goto rcv_done;
+
+ while (rx) {
+ if ((rx->RDES0 & ERR_RX_ES) || (rx->RDES0 & ERR_RX_LE)) {
+ ndev->stats.rx_errors++;
+ if(rx->RDES0 & ERR_RX_LE) ndev->stats.rx_length_errors++;
+ if(rx->RDES0 & ERR_RX_OE) ndev->stats.rx_over_errors++;
+ if(rx->RDES0 & ERR_RX_IPC) ndev->stats.rx_frame_errors++;
+ if(rx->RDES0 & ERR_RX_LC) ndev->stats.rx_fifo_errors++;
+ if(rx->RDES0 & ERR_RX_CE) ndev->stats.rx_crc_errors++;
+ } else {
+
+ len = ((rx->RDES0 >> 16) & 0x3FFF) - 4;
+ if(len > (ETH_FRAME_LEN+8)) {
+ ndev->stats.rx_dropped++;
+ goto rx_bd_reset;
+ }
+
+ skb_new = netdev_alloc_skb(ndev, GMAC_FRAME_LEN + NET_IP_ALIGN);
+ if (unlikely(!skb_new)) {
+ ndev->stats.rx_dropped++;
+ exhausted++;
+ } else {
+ exhausted = 0;
+ ndev->stats.rx_packets++;
+ ndev->stats.rx_bytes += len;
+
+ dma_sync_single_for_cpu(&ndev->dev, rx->dma_buf, GMAC_FRAME_LEN, DMA_FROM_DEVICE);
+ skb = rx->skb;
+ skb_put(skb, len); /*in fact , use for?*/
+
+// dump_pkt_trace(skb->data, len);
+ skb->protocol = eth_type_trans(skb, ndev);
+ netif_rx(skb);
+
+ skb_reserve(skb_new, NET_IP_ALIGN);
+// rx->dma_buf = virt_to_phys_ap((unsigned long)skb_new->data);
+ rx->dma_buf = virt_to_phys_ap_new((unsigned long)skb_new->data);
+ if(rx->dma_buf == NULL)
+ rx->dma_buf = __pa((unsigned)skb_new->data);
+ rx->skb = skb_new;
+ wmb();
+ dma_sync_single_for_device(&ndev->dev, rx->dma_buf, GMAC_FRAME_LEN, DMA_TO_DEVICE);
+ }
+ }
+rx_bd_reset:
+ rx->RDES0 = rx->RDES0 | DMA_OWNER;
+ priv->rx_bd_offset++;
+ priv->rx_bd_offset %= GMAC_RX_BD_NUM;
+ wmb();
+
+ if (exhausted >= 10)
+ break;
+ gmac_trig_receive((void*)ndev->base_addr);
+ rx = get_rx_bd(ndev);
+ }
+
+rcv_done:
+
+ gmac_trig_receive((void*)ndev->base_addr);
+
+ return (exhausted > 10);
+}
+
+
+#ifndef GMAC_NO_INT
+static irqreturn_t zx29_gmac_interrupt(int irq, void *dev_id)
+{
+ struct net_device *ndev = (struct net_device *)dev_id;
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ volatile unsigned * gmac = (unsigned *)ndev->base_addr;
+
+ priv->int_event = MAC(0x1014);
+ MAC(0x1014) = priv->int_event;
+
+ mac_int_disable();
+ tasklet_schedule(&priv->tasklet);
+
+ return IRQ_HANDLED;
+}
+
+void zx29_gmac_tasklet(unsigned long dev_id)
+{
+ struct net_device *ndev = (struct net_device *)dev_id;
+ struct zx29_gmac_dev *prv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ volatile unsigned *gmac = (unsigned *)ndev->base_addr;
+ unsigned int events = prv->int_event;
+
+ do {
+ if (events & INT_ST_TX)
+ zx29_gmac_tx(ndev);
+
+ if (events & INT_ST_RX)
+ zx29_gmac_rx(ndev);
+
+ events = MAC(0x1014);
+ MAC(0x1014) = events;
+ } while (events & (INT_ST_TX | INT_ST_RX));
+
+ mac_int_enable();
+}
+
+#else
+void zx29_gmac_tasklet(unsigned long dev_id)
+{
+ struct net_device *ndev = (struct net_device *)dev_id;
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ volatile unsigned *gmac = (unsigned *)ndev->base_addr;
+ unsigned events = priv->int_event;
+
+ do {
+ if (events & INT_ST_TX)
+ zx29_gmac_tx(ndev);
+
+ if (events & INT_ST_RX) {
+ if (zx29_gmac_rx(ndev))
+ break;
+ }
+ events = MAC(0x1014);
+ MAC(0x1014) = events;
+ } while (events & (INT_ST_RX | INT_ST_TX));
+}
+
+enum hrtimer_restart gmac_timer_callback(struct hrtimer *timer)
+{
+ unsigned long delay_in_us = GTIMER_INTERVAL;
+ ktime_t gmac_schdule_time = ktime_set(0, delay_in_us * 1000);
+
+ hrtimer_forward_now(timer, gmac_schdule_time);
+ tasklet_schedule(g_gmac_tasklet);
+ return HRTIMER_RESTART;
+}
+#endif
+
+static inline void zx29_gmac_linkisup(struct net_device *dev, int isup)
+{
+ struct zx29_gmac_dev *priv = netdev_priv(dev);
+ struct phy_device *phydev = priv->phydev;
+
+ priv->link.duplex = phydev->duplex;
+ priv->link.giga = (phydev->speed == 100);
+ if (priv->link.speed != phydev->speed)
+ priv->link.speed = phydev->speed;
+
+
+ priv->link.isup = isup;
+ if (isup)
+ netif_carrier_on(dev);
+ phy_print_status(phydev);
+}
+
+static void zx29_gmac_adjust_link(struct net_device *dev)
+{
+ struct zx29_gmac_dev *priv = netdev_priv(dev);
+ struct phy_device *phydev = priv->phydev;
+ volatile unsigned *gmac = (unsigned *)dev->base_addr;
+
+ if (priv->link.isup &&
+ (!phydev->link ||
+ (priv->link.speed != phydev->speed) ||
+ (priv->link.duplex != phydev->duplex))) {
+ priv->link.isup = 0;
+ netif_tx_disable(dev);
+ if (!phydev->link) {
+ netif_carrier_off(dev);
+ phy_print_status(phydev);
+ }
+ }
+
+ if (!priv->link.isup && phydev->link) {
+ if (priv->link.duplex != phydev->duplex) {
+ if (phydev->duplex)
+ mac_set_full_duplex_mode();
+ else
+ mac_set_half_duplex_mode();
+ }
+
+ if (priv->link.giga != (phydev->speed == 100)) {
+ if (phydev->speed == 100)
+ mac_set_speed_100m_mode();
+ else
+ mac_set_speed_10m_mode();
+ }
+ netif_wake_queue(dev);
+ zx29_gmac_linkisup(dev, 1);
+ }
+
+}
+
+static inline int zx29_gmac_phy_start(struct net_device *dev)
+{
+ struct zx29_gmac_dev *priv = netdev_priv(dev);
+ struct phy_device *p = NULL;
+ struct mdio_device *mdio_dev = NULL;
+ int ret = 0;
+
+ //zw.wang Without phy, gmac's gpio output power is removed on 20240328 start
+ int i = 0;
+ for(i = 0;i <= 5;i++)
+ {
+ if (priv->nports == 1) {
+ p = phy_find_first(priv->mii.bus);
+ } else if (priv->rmii_port < PHY_MAX_ADDR) {
+ mdio_dev = priv->mii.bus->mdio_map[priv->rmii_port];
+ p = container_of(mdio_dev, struct phy_device, mdio);
+ }
+
+ if (!p) {
+ if(i == 5){
+ gpio_direction_output(priv->gpio_power[0], 0);
+#ifdef CONFIG_MDIO_C45
+ gpio_direction_output(priv->gpio_power[1], 0);
+#endif
+ }
+ else
+ continue;
+ printk("%s: no PHY found\n", dev->name);
+ return -ENODEV;
+ }
+ else
+ break;
+ }
+ //zw.wang Without phy, gmac's gpio output power is removed on 20240328 end
+
+ ret = phy_connect_direct(dev, p, zx29_gmac_adjust_link, PHY_INTERFACE_MODE_RMII); /* phy_start_machine */
+ /* supported and advertising */
+ priv->phydev = p;
+ return 0;
+}
+
+
+static int gmac_init_rx_bd(struct net_device *ndev, struct zx29_gmac_dev *priv)
+{
+ struct sk_buff *skb = NULL;
+ struct bd_rx *rx = (struct bd_rx *)priv->dma_rx_vir;
+ int i = 0;
+
+ priv->rx_bd_offset = 0;
+
+ for (i = 0; i < GMAC_RX_BD_NUM; i++) {
+ skb = netdev_alloc_skb(ndev, GMAC_FRAME_LEN + NET_IP_ALIGN);
+ if (unlikely(!skb)) {
+ gmac_hw_deinit(ndev);
+ return -1;
+ }
+
+ skb_reserve(skb, NET_IP_ALIGN);
+
+ rx[i].RDES0 |= DMA_OWNER; /* when to change? */
+ rx[i].RDES1 = 0;
+ rx[i].RDES1 = GMAC_FRAME_LEN | 1 << 14;
+ rx[i].dma_buf = __pa((unsigned)skb->data); /* __pa ? */
+ rx[i].next = priv->dma_rx_phy + ((i + 1) << 5); /* why phy? */
+ rx[i].skb = skb;
+#if 0
+ if(i%4 != 0)
+ {
+ rx[i].RDES1 |= 0x80000000;
+ }
+#endif
+ dma_sync_single_for_device(&ndev->dev, rx[i].dma_buf, GMAC_FRAME_LEN, DMA_TO_DEVICE);
+
+ }
+ rx[GMAC_RX_BD_NUM - 1].next = priv->dma_rx_phy;
+ rx[GMAC_RX_BD_NUM - 1].RDES1 = GMAC_FRAME_LEN | 1 << 14 | 1 << 15;
+
+ return 0;
+}
+
+static void gmac_init_tx_bd(struct zx29_gmac_dev *priv)
+{
+ struct bd_tx *tx = (struct bd_tx *)priv->dma_tx_vir;
+ int i = 0;
+ priv->tx_bd_offset = 0;
+ priv->txed_bd = 0;
+
+ for (i = 0; i < GMAC_TX_BD_NUM; i++) {
+ tx[i].TDES0 = (1 << 20 | 1 << 30);
+ tx[i].TDES1 = GMAC_FRAME_LEN;
+ tx[i].next = priv->dma_tx_phy + ((i + 1) << 5);
+ }
+
+ tx[GMAC_TX_BD_NUM - 1].next = priv->dma_tx_phy;
+ tx[GMAC_TX_BD_NUM - 1].TDES0 = 1 << 20 | 1 << 21 | 1 << 30;
+
+}
+
+static void gmac_stop(void *io)
+{
+ volatile unsigned *gmac = (unsigned *)io;
+
+ dma_disable();
+ mac_disable();
+ mac_int_disable();
+
+ dma_clear_tx_fifo();
+ dma_wait_tx_fifo_cleared();
+}
+
+static void gmac_set_speed_duplex(struct net_device *ndev, int speed, int duplex)
+{
+ unsigned val;
+ volatile unsigned *gmac = (unsigned *)ndev->base_addr;
+
+ val = MAC(0x0000) | 1 << 11 | 1 << 14;
+ if (SPEED_10 == speed)
+ val &= ~(1 << 14);
+ if (DUPLEX_HALF == duplex) {
+ val &= (~(1 << 11));
+ val |= (1 << 16);
+ }
+ MAC(0x0000) = val;
+}
+
+static void mac_init(struct net_device *ndev)
+{
+ volatile unsigned *gmac = (unsigned *)ndev->base_addr;
+ unsigned int i = 0, j = 0, mac_rst = 0;
+ unsigned long long mac_time_start = 0;
+ unsigned long long mac_time_end = 0;
+
+ mac_provide_clock();
+#ifdef __DEAD_LOOP_POLL__
+ mac_reset();
+ mac_set_gmii_mode();
+ mac_wait_reset_finished();
+#else
+ mac_time_start = local_clock();
+ for (i = 0; i < MAC_RESET_NUM; i++) {
+ mac_reset();
+ mac_set_mii_mode();
+ for (j = 0; j < MAC_WAIT_TIME; j++) {
+// printk(".");
+ if (!((MAC(0x1000)) & 1)) {
+ mac_time_end = local_clock();
+ printk("ok:time:%llu ns\n", mac_time_end - mac_time_start);
+ mac_rst = 1;
+ goto mac_reset_option;
+ }
+ udelay(100);
+ }
+ }
+ mac_time_end = local_clock();
+mac_reset_option:
+ if(!mac_rst)
+ printk("gmac reset failed!time:%llu us\n", mac_time_end - mac_time_start);
+#endif
+ while(mac_mii_is_busy());
+}
+
+static void gmac_hw_deinit(struct net_device *ndev)
+{
+ int i;
+ struct bd_rx *rx_bd;
+ struct bd_tx *tx_bd;
+ volatile unsigned *gmac = (unsigned *)ndev->base_addr;
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+
+ gmac_stop((void *)ndev->base_addr);
+
+ if (priv->dma_rx_phy) {
+ rx_bd = (struct bd_rx *)priv->dma_rx_vir;
+
+ for (i = 0; i < GMAC_RX_BD_NUM; i++) {
+ if (rx_bd[i].skb)
+ dev_kfree_skb_any(rx_bd[i].skb);
+ }
+
+ tx_bd = (struct bd_tx *)priv->dma_tx_vir;
+
+ for (i = 0; i < GMAC_TX_BD_NUM; i++) {
+ if (tx_bd[i].skb)
+ dev_kfree_skb_any(tx_bd[i].skb);
+ }
+ }
+
+ dma_set_tx_buffer(0); //设置首个BD的缓冲区为0；
+ dma_set_rx_buffer(0);
+
+ priv->rx_bd_offset = 0;
+ priv->tx_bd_offset = 0;
+ priv->txed_bd = 0;
+ priv->dma_rx_phy = 0;
+ priv->dma_rx_vir = 0;
+ priv->dma_tx_phy = 0;
+ priv->dma_tx_vir = 0;
+
+}
+
+static int gmac_hw_init(struct net_device *ndev)
+{
+ int ret = -1;
+ unsigned val;
+
+ volatile unsigned *gmac = (unsigned *)ndev->base_addr;
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+
+ if (priv->dma_rx_phy)
+ gmac_hw_deinit(ndev);
+
+ priv->dma_rx_vir = priv->dma_rx_vir_init;
+ priv->dma_rx_phy = priv->dma_rx_phy_init;
+ priv->dma_tx_vir = priv->dma_rx_vir + GMAC_RX_BUF_LEN;
+ priv->dma_tx_phy = priv->dma_rx_phy + GMAC_RX_BUF_LEN; /* ifconfig up, clear fifo*/
+
+ memset(priv->dma_rx_vir, 0, GMAC_BUF_LEN);
+
+ ret = gmac_init_rx_bd(ndev, priv);
+ if (ret < 0) {
+ printk("hw_net_init,init_rx_bd fail\n");
+ return ret;
+ }
+ gmac_init_tx_bd(priv);
+
+ mac_init(ndev);
+
+ dma_disable();
+ mac_disable();
+ mac_int_disable();
+
+ val = MAC(0x1000);
+ val &= ~(0x3F << 8);
+ val |= (0x10 << 8);
+ MAC(0x1000) = val;
+
+ dma_set_rx_buffer(priv->dma_rx_phy);
+ dma_set_tx_buffer(priv->dma_tx_phy);
+
+ mac_int_clear(0x0001FFFF);
+ while (mac_mii_is_busy());
+
+ gmac_set_speed_duplex(ndev, priv->phydev->speed, priv->phydev->duplex);
+
+ mac_rece_all_data();
+
+ gmac_start((void *)ndev->base_addr);
+ return 0;
+}
+
+static int zx29_gmac_open(struct net_device *ndev)
+{
+ struct zx29_gmac_dev *priv = netdev_priv(ndev);
+ unsigned long flags;
+ int ret;
+ int err = 0;
+#ifdef GMAC_NO_INT
+ unsigned long delay_in_us = GTIMER_INTERVAL;
+ ktime_t gmac_schdule_time;
+#endif
+ err = phy_read_status(priv->phydev); /*interal, phy drv provide*/
+ if (err < 0)
+ return err;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->link.speed = 0;
+
+ zx29_gmac_linkisup(ndev, priv->phydev->link);
+
+ ret = gmac_hw_init(ndev);
+ if(ret) {
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return ret;
+ }
+
+ netif_carrier_on(ndev);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ phy_start(priv->phydev);
+
+ netif_start_queue(ndev);
+
+#ifdef GMAC_NO_INT
+ gmac_schdule_time = ktime_set(0, delay_in_us * 1000);
+ if (priv->timer)
+ hrtimer_start(priv->timer, gmac_schdule_time, HRTIMER_MODE_REL);
+#endif
+
+ priv->stopped = 0;
+
+ printk("TSP zx29 gmac net open\n");
+
+ return 0;
+}
+
+static int zx29_gmac_stop(struct net_device *ndev)
+{
+ unsigned long flags = 0;
+ int ret = 0;
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+
+ if (!priv->stopped) {
+ spin_lock_irqsave(&priv->lock, flags);
+#ifdef GMAC_NO_INT
+ ret = hrtimer_cancel(priv->timer);
+ if (ret < 0) {
+ BUG_ON(1);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return ret;
+ }
+#endif
+
+ priv->stopped = 1;
+ netif_stop_queue(ndev);
+ netif_carrier_off(ndev);
+ phy_stop(priv->phydev);
+ gmac_hw_deinit(ndev);
+
+ memset(&ndev->stats, 0, sizeof(struct net_device_stats));
+ spin_unlock_irqrestore(&priv->lock, flags);
+ printk("TSP zx29 gmac net stop\n");
+ }
+ return 0;
+}
+
+
+static netdev_tx_t zx29_gmac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+{
+ unsigned long flags;
+ unsigned len;
+ struct sk_buff *skb_old;
+ struct bd_tx *tx;
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+
+ if (0 == priv->link.isup) {
+ dev_kfree_skb_any(skb);
+ printk("TSP zx29 gmac xmit phy not link\n");
+ return NETDEV_TX_OK; /* ? */
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if(priv->stopped)
+ {
+ spin_unlock_irqrestore(&priv->lock,flags);
+ dev_kfree_skb_any(skb);
+
+ printk("zx_net_start_xmit when stopped\n");
+
+ return NETDEV_TX_OK;
+ }
+
+ tx = get_tx_bd(ndev);
+
+ if (!tx) {
+ spin_unlock_irqrestore(&priv->lock,flags);
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+
+ priv->tx_bd_offset++;
+ priv->tx_bd_offset %= GMAC_TX_BD_NUM;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if(skb->len > ETH_FRAME_LEN + 4) /* why 4*/
+ printk("TSP zx29 gmac start xmit len too long\n");
+
+// v7_dma_map_area(skb->data, skb->len, DMA_TO_DEVICE);
+ dma_map(skb->data, skb->len, DMA_TO_DEVICE);
+ if (NULL == skb)
+ BUG_ON(1);
+
+ len = MIN(skb->len, GMAC_FRAME_LEN - NET_IP_ALIGN);
+
+ tx->TDES0 |= (0x07 << 28);
+// tx->dma_buf = virt_to_phys_ap((unsigned long)skb->data);
+ tx->dma_buf = virt_to_phys_ap_new((unsigned long)skb->data);
+
+ if(tx->dma_buf == NULL)
+ tx->dma_buf = virt_to_phys((unsigned)skb->data);
+ tx->skb = skb;
+
+ tx->TDES1 = len;
+ tx->TDES0 |= DMA_OWNER;
+
+ wmb();
+ ndev->stats.tx_bytes += len;
+ ndev->stats.tx_packets++;
+/* ndev->trans_start = jiffies; */
+
+
+ gmac_trig_transmit((void*)ndev->base_addr);
+// dump_pkt_trace(skb->data, len);
+// printk("[%s]\n", __func__);
+
+ return NETDEV_TX_OK;
+}
+
+static void zx29_gmac_tx_timeout(struct net_device *ndev, unsigned int txqueue)
+{
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+#ifdef CONFIG_MARVELL_88Q1110 //zw.wang phy driver support for Marvell_88q1110 on 20240417
+ genphy_update_link(priv->phydev);
+#endif
+ priv->link.isup = priv->phydev->link;
+
+ if (0 == priv->link.isup) {
+ printk("TSP zx29 gmac net timeout phy not link\n"); // PHY 未连接
+ netif_stop_queue(ndev);
+ netif_carrier_off(ndev);
+ } else {
+ printk("TSP zx29 gmac net timeout phy linked\n");
+ gmac_trig_transmit(ndev);
+ gmac_trig_receive(ndev);
+
+ netif_carrier_on(ndev);
+ netif_wake_queue(ndev);
+/* ndev->trans_start = jiffies; */ /* modify */
+ ndev->stats.tx_errors++;
+ ndev->stats.tx_dropped++;
+ }
+}
+
+void __iomem *base_clk = NULL;
+void __iomem *base_phy_release = NULL;
+
+static int zx29_gmac_phy_disable(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ volatile unsigned int *gmac = NULL;
+ gmac = (unsigned *)ndev->base_addr;
+
+ enum of_gpio_flags flags;
+ unsigned long flag;
+ int gpio = 0;
+ int ret = 0;
+
+#ifndef CONFIG_BOOT_WITHOUT_LOCK
+ if (ndev && !priv->stopped) {
+ if (netif_running(ndev)) {
+
+ spin_lock_irqsave(&priv->lock, flag);
+ netif_stop_queue(ndev);
+ netif_carrier_off(ndev);
+ priv->stopped = 1;
+
+#ifdef GMAC_NO_INT
+ hrtimer_cancel(priv->timer);
+#endif
+ printk("[%s] netif_running\n", __func__);
+
+ gpio_direction_output(priv->gpio_power[0], 0);
+
+ gmac_stop((void*)ndev->base_addr);
+ spin_unlock_irqrestore(&priv->lock, flag);
+
+// netif_device_detach(ndev);
+ }
+ pm_relax(&pdev->dev);
+ // printk("[%s] sleep\n");
+ }
+#endif
+ //printk("[%s] exit\n", __func__);
+ return 0;
+}
+
+static int zx29_gmac_phy_enable(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ volatile unsigned int *gmac = NULL;
+ void __iomem *base = NULL;
+ gmac = (unsigned *)ndev->base_addr;
+ enum of_gpio_flags flags;
+ int gpio = 0;
+ int ret = 0;
+ int status = 0;
+ int islink = 0;
+ unsigned int num= 0;
+ unsigned long flag = 0;
+
+#ifndef CONFIG_BOOT_WITHOUT_LOCK
+ if(ndev && priv->stopped) {
+ pm_stay_awake(&pdev->dev);
+ if( netif_running(ndev)) {
+ printk("[%s] enter\n", __func__);
+ spin_lock_irqsave(&priv->lock, flag);
+ gpio_direction_output(priv->gpio_power[0], 1);
+
+ base = base_clk;
+ gmac_set_clk();
+
+ base = base_phy_release;
+ gmac_phy_release();
+
+ mdelay(500); //icplus ping need
+
+ priv->phydev->drv->config_init(priv->phydev);
+ gmac_hw_init(ndev);
+
+ netif_carrier_on(ndev);
+ netif_start_queue(ndev);
+
+#ifdef GMAC_NO_INT
+ hrtimer_start(priv->timer, ktime_set(0, GTIMER_INTERVAL * 1000), HRTIMER_MODE_REL);
+#endif
+ priv->stopped = 0;
+ spin_unlock_irqrestore(&priv->lock, flag);
+ printk("[%s] enter\n", __func__);
+// netif_device_attach(ndev);
+ }
+ }
+#endif
+ return 0;
+}
+
+#define C45_READ 1
+#define C45_WRITE 0
+static int zx29_c22_2_c45(struct phy_device *phydev, int addr, u16 devad, u32 regnum, int rw, int write_val)
+{
+ int val = 0;
+ phy_lock_mdio_bus(phydev);
+ /* Write the desired MMD Devad */
+ __mdiobus_write(phydev->mdio.bus, addr, MII_MMD_CTRL, devad);
+ /* Write the desired MMD register address */
+ __mdiobus_write(phydev->mdio.bus, addr, MII_MMD_DATA, regnum);
+ /* Select the Function : DATA with no post increment */
+ __mdiobus_write(phydev->mdio.bus, addr, MII_MMD_CTRL,
+ devad | MII_MMD_CTRL_NOINCR);
+ /* Read the content of the MMD's selected register */
+ if (rw == C45_READ)
+ val = __mdiobus_read(phydev->mdio.bus, addr, MII_MMD_DATA);
+ else
+ __mdiobus_write(phydev->mdio.bus, addr, MII_MMD_DATA, write_val);
+ phy_unlock_mdio_bus(phydev);
+
+ return val;
+}
+
+static int zx29_c45_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
+{
+ struct mii_ioctl_data *mii_data = if_mii(ifr);
+ u16 val = mii_data->val_in;
+ bool change_autoneg = false;
+ int prtad, devad, reg_num;
+
+ switch (cmd) {
+ case SIOCGMIIREG:
+ prtad = mdio_phy_id_prtad(mii_data->phy_id);//phy id
+ devad = mdio_phy_id_devad(mii_data->phy_id);//dev id / mmd
+ reg_num = mii_data->reg_num;
+ mii_data->val_out = zx29_c22_2_c45(phydev, prtad, devad, reg_num, C45_READ, 0);
+ return 0;
+
+ case SIOCSMIIREG:
+ prtad = mdio_phy_id_prtad(mii_data->phy_id);
+ devad = mdio_phy_id_devad(mii_data->phy_id);
+ reg_num = mii_data->reg_num;
+
+ if (prtad == phydev->mdio.addr) {
+ switch (devad) {
+ case MII_BMCR:
+ if ((val & (BMCR_RESET | BMCR_ANENABLE)) == 0) {
+ if (phydev->autoneg == AUTONEG_ENABLE)
+ change_autoneg = true;
+ phydev->autoneg = AUTONEG_DISABLE;
+ if (val & BMCR_FULLDPLX)
+ phydev->duplex = DUPLEX_FULL;
+ else
+ phydev->duplex = DUPLEX_HALF;
+ if (val & BMCR_SPEED1000)
+ phydev->speed = SPEED_1000;
+ else if (val & BMCR_SPEED100)
+ phydev->speed = SPEED_100;
+ else phydev->speed = SPEED_10;
+ }
+ else {
+ if (phydev->autoneg == AUTONEG_DISABLE)
+ change_autoneg = true;
+ phydev->autoneg = AUTONEG_ENABLE;
+ }
+ break;
+ case MII_ADVERTISE:
+ mii_adv_mod_linkmode_adv_t(phydev->advertising,
+ val);
+ change_autoneg = true;
+ break;
+ case MII_CTRL1000:
+ mii_ctrl1000_mod_linkmode_adv_t(phydev->advertising,
+ val);
+ change_autoneg = true;
+ break;
+ default:
+ /* do nothing */
+ break;
+ }
+ }
+
+ zx29_c22_2_c45(phydev, prtad, devad, reg_num, C45_WRITE, val);
+
+ if (prtad == phydev->mdio.addr &&
+ devad == MII_BMCR &&
+ val & BMCR_RESET)
+ return phy_init_hw(phydev);
+
+ if (change_autoneg)
+ return phy_start_aneg(phydev);
+
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int zx29_gmac_ioctl(struct net_device *ndev, struct ifreq *ifr, int cmd)
+{
+ struct zx29_gmac_dev *priv = netdev_priv(ndev);
+ struct mii_ioctl_data *mii_data = if_mii(ifr);
+ int is_c45 = mdio_phy_id_is_c45(mii_data->phy_id);
+
+ if (!(netif_running(ndev)))
+ return -EINVAL;
+ if (!priv->phydev)
+ return -EINVAL;
+ if (cmd == SIOCDISABLEPHY)
+ return zx29_gmac_phy_disable(ndev->dev.parent);
+
+ if (cmd == SIOCENABLEPHY)
+ return zx29_gmac_phy_enable(ndev->dev.parent);
+
+ if (is_c45)
+ return zx29_c45_mii_ioctl(priv->phydev, ifr, cmd);
+
+ return phy_mii_ioctl(priv->phydev, ifr, cmd);
+}
+
+static int eth_change_mtu(struct net_device *ndev, int new_mtu)
+{
+ if (new_mtu < 68 || new_mtu > ETH_DATA_LEN)
+ return -EINVAL;
+ ndev->mtu = new_mtu;
+ return 0;
+}
+
+static int zx29_gmac_set_mac_address(struct net_device *ndev, void *p)
+{
+ int ret = eth_mac_addr(ndev, p);
+ if (!ret) {
+ gmac_update_mac(ndev);
+ printk(" zx29 gmac set mac addr ok\n");
+ }
+ return ret;
+}
+
+
+static int zx29_gmac_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
+
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ unsigned long flag;
+
+ if(ndev) {
+ if(netif_running(ndev)) {
+// netif_device_detach(ndev);
+// gmac_stop((void*)ndev->base_addr);
+#ifdef CONFIG_BOOT_WITHOUT_LOCK
+ phy_stop(priv->phydev);
+ spin_lock_irqsave(&priv->lock, flag);
+ netif_stop_queue(ndev);
+ netif_carrier_off(ndev);
+ priv->stopped = 1;
+
+#ifdef GMAC_NO_INT
+ hrtimer_cancel(priv->timer);
+#endif
+
+ printk("[%s] netif_running\n", __func__);
+#ifdef CONFIG_MARVELL_88Q1110 //zw.wang phy driver support for Marvell_88q1110 on 20240417
+ gpio_direction_output(priv->gpio_power[0], 0);
+ gmac_stop((void*)ndev->base_addr);
+#else
+ gmac_stop((void*)ndev->base_addr);
+ gpio_direction_output(priv->gpio_power[0], 0);
+#endif
+ spin_unlock_irqrestore(&priv->lock, flag);
+
+#endif
+ }
+ }
+#ifndef CONFIG_MARVELL_88Q1110 //zw.wang phy driver support for Marvell_88q1110 on 20240417
+ pinctrl_pm_select_sleep_state(&pdev->dev);
+#endif
+ return 0;
+}
+
+static int zx29_gmac_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+
+ volatile unsigned int *gmac = NULL;
+ void __iomem *base = NULL;
+ gmac = (unsigned *)ndev->base_addr;
+ unsigned long flag = 0;
+
+#ifndef CONFIG_MARVELL_88Q1110 //zw.wang phy driver support for Marvell_88q1110 on 20240417
+ pinctrl_pm_select_default_state(&pdev->dev);
+#endif
+ if(ndev) {
+ if(netif_running(ndev)) {
+// gmac_start((void*)ndev->base_addr);
+// netif_device_attach(ndev);
+// zx29_gmac_phy_enable(dev);
+#ifdef CONFIG_BOOT_WITHOUT_LOCK
+ printk("[%s] enter\n", __func__);
+ spin_lock_irqsave(&priv->lock, flag);
+ gpio_direction_output(priv->gpio_power[0], 1);
+
+ base = base_clk;
+ gmac_set_clk();
+
+ base = base_phy_release;
+ gmac_phy_release();
+
+ mdelay(500); //icplus ping need
+
+ priv->phydev->drv->config_init(priv->phydev);
+ gmac_hw_init(ndev);
+
+ netif_carrier_on(ndev);
+
+ phy_start(priv->phydev);
+ netif_start_queue(ndev);
+
+#ifdef GMAC_NO_INT
+ hrtimer_start(priv->timer, ktime_set(0, GTIMER_INTERVAL * 1000), HRTIMER_MODE_REL);
+#endif
+
+ priv->stopped = 0;
+ spin_unlock_irqrestore(&priv->lock, flag);
+ printk("[%s] enter\n", __func__);
+#endif
+
+ }
+ }
+ return 0;
+}
+
+static const struct ethtool_ops zx29_gmac_ethtool_ops = {
+ .get_link = zx29_gmac_get_link,
+ .get_link_ksettings = phy_ethtool_get_link_ksettings,
+ .set_link_ksettings = phy_ethtool_set_link_ksettings,
+ /* other func */
+};
+
+static const struct net_device_ops zx29_gmac_netdev_ops = {
+ .ndo_open = zx29_gmac_open,
+ .ndo_stop = zx29_gmac_stop,
+ .ndo_start_xmit = zx29_gmac_start_xmit,
+ .ndo_tx_timeout = zx29_gmac_tx_timeout,
+ .ndo_do_ioctl = zx29_gmac_ioctl,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = zx29_gmac_set_mac_address,
+};
+
+
+
+ssize_t show_fun(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ int status = 0;
+ volatile unsigned *gmac = (unsigned *)ndev->base_addr;
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ printk("MAC(1000) :0x%x\n", MAC(0x1000));
+ printk("MAC(1004) :0x%x\n", MAC(0x1004));
+ printk("MAC(1008) :0x%x\n", MAC(0x1008));
+ printk("MAC(100c) :0x%x\n", MAC(0x100c));
+ printk("MAC(1010) :0x%x\n", MAC(0x1010));
+ printk("MAC(1014) int status:0x%x\n", MAC(0x1014));
+ printk("MAC(1018) :0x%x\n", MAC(0x1018));
+ printk("MAC(101c) :0x%x\n", MAC(0x101c));
+ printk("MAC(0000) :0x%x\n", MAC(0x0000));
+ printk("MAC(0004) :0x%x\n", MAC(0x0004));
+ printk("MAC(0010) :0x%x\n", MAC(0x0010));
+
+ status = mdiobus_read(priv->phydev->mdio.bus, 21, 1);
+ printk("phy status:0x%x\n", status);
+ status = mdiobus_read(priv->phydev->mdio.bus, 0, 1);
+ printk("phy status port0:0x%x\n", status);
+ status = mdiobus_read(priv->phydev->mdio.bus, 1, 1);
+ printk("phy status port1:0x%x\n", status);
+ status = mdiobus_read(priv->phydev->mdio.bus, 2, 1);
+ printk("phy status port2:0x%x\n", status);
+ status = mdiobus_read(priv->phydev->mdio.bus, 3, 1);
+ printk("phy status port3:0x%x\n", status);
+ status = mdiobus_read(priv->phydev->mdio.bus, 4, 1);
+ printk("phy status port4:0x%x\n", status);
+
+ status = mdiobus_read(priv->phydev->mdio.bus, 21, 20);
+ status |= 0x4;
+ mdiobus_write(priv->phydev->mdio.bus, 21, 20, status);
+
+ status = mdiobus_read(priv->phydev->mdio.bus, 21, 21);
+ printk("phy status loop port:0x%x\n", status);
+
+
+ return 0;
+}
+
+ssize_t store_fun(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ printk("[%s]", __func__);
+ return 1;
+}
+
+
+ssize_t mdio_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ int mmd = 0;
+ int reg = 0;
+
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ printk("phyaddr:0x%x,devad:0x%x,reg:0x%x,val=0x%x\n",
+ priv->phydev->mdio.addr,
+ mmd,
+ reg,
+ mdiobus_read(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e));
+
+ return 0;
+}
+
+ssize_t mdio_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ int ret = 0;
+ int mmd = 0;
+ int reg = 0;
+ int rd_wt = 0;/* rd:0, wt:1 */
+ int val = 0;
+ char *kern_buf = NULL;
+
+ printk(KERN_INFO "%s input str=%s,nbytes=%d \n", __func__, buf, count);
+
+ ret = sscanf(buf, "%x,%x,%x,%x", &rd_wt, &mmd, ®, &val);
+ if (ret < 4) {
+ printk(KERN_INFO "gmac: failed to read user buf, ret=%d, input 0x%x,0x%x,0x%x,0x%x\n",
+ ret, rd_wt, mmd, reg, val);
+ return count;
+ }
+
+ if (rd_wt !=0 && rd_wt !=1) {
+ printk("please input with format: rd_wt,devad,reg,val\n"
+ "0:rd, 1:wt, if rd, val default input 0\n");
+ return ret ? ret : count;
+ }
+
+ if (rd_wt == 0) {
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ printk("phyaddr:0x%x,devad:0x%x,reg:0x%x,val=0x%x\n",
+ priv->phydev->mdio.addr,
+ mmd,
+ reg,
+ mdiobus_read(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e));
+ }
+
+ if (rd_wt == 1) {
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, val);
+
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ printk("phyaddr:0x%x,devad:0x%x,reg:0x%x,val=0x%x\n",
+ priv->phydev->mdio.addr,
+ mmd,
+ reg,
+ mdiobus_read(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e));
+ }
+
+ return count;
+}
+
+
+ssize_t free_mdio_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ int mmd = 0;
+ int reg = 0;
+
+ mdiobus_write(priv->phydev->mdio.bus, 8, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, 8, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, 8, 0x0d, 0x4000 | mmd);
+ printk("phyaddr:0x%x,devad:0x%x,reg:0x%x,val=0x%x\n",
+ priv->phydev->mdio.addr,
+ mmd,
+ reg,
+ mdiobus_read(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e));
+
+ return 0;
+}
+
+ssize_t free_mdio_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ int ret = 0;
+ int mmd = 0;
+ int reg = 0;
+ int rd_wt = 0;/* rd:0, wt:1 */
+ int val = 0;
+ int phy_addr = 8;
+ char *kern_buf = NULL;
+
+ printk(KERN_INFO "%s input str=%s,nbytes=%d \n", __func__, buf, count);
+
+ ret = sscanf(buf, "%x,%x,%x,%x,%x", &rd_wt, &phy_addr, &mmd, ®, &val);
+ if (ret < 4) {
+ printk(KERN_INFO "gmac: failed to read user buf, ret=%d, input 0x%x,0x%x,0x%x,0x%x,0x%x\n",
+ ret, rd_wt, phy_addr, mmd, reg, val);
+ return count;
+ }
+
+ if (rd_wt !=0 && rd_wt !=1) {
+ printk("please input with format: rd_wt,phy_addr,devad,reg,val\n"
+ "0:rd, 1:wt, if rd, val default input 0\n");
+ return ret ? ret : count;
+ }
+
+ if (rd_wt == 0) {
+ mdiobus_write(priv->phydev->mdio.bus, phy_addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, phy_addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, phy_addr, 0x0d, 0x4000 | mmd);
+ printk("phyaddr:0x%x,devad:0x%x,reg:0x%x,val=0x%x\n",
+ phy_addr,
+ mmd,
+ reg,
+ mdiobus_read(priv->phydev->mdio.bus, phy_addr, 0x0e));
+ }
+
+ if (rd_wt == 1) {
+ mdiobus_write(priv->phydev->mdio.bus, phy_addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, phy_addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, phy_addr, 0x0d, 0x4000 | mmd);
+ mdiobus_write(priv->phydev->mdio.bus, phy_addr, 0x0e, val);
+
+ mdiobus_write(priv->phydev->mdio.bus, phy_addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, phy_addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, phy_addr, 0x0d, 0x4000 | mmd);
+ printk("phyaddr:0x%x,devad:0x%x,reg:0x%x,val=0x%x\n",
+ phy_addr,
+ mmd,
+ reg,
+ mdiobus_read(priv->phydev->mdio.bus, phy_addr, 0x0e));
+ }
+
+ return count;
+}
+
+extern int debug_on;
+ssize_t debug_on_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+
+ int val = 0;
+ int ret;
+ ret = sscanf(buf, "%d", &val);
+ if (ret < 1) {
+ printk(KERN_INFO "gmac: failed to read user buf, ret=%d, input %d\n",
+ ret,val);
+ return count;
+ }
+ debug_on = val;
+ return count;
+}
+
+ssize_t debug_on_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+
+ if (debug_on)
+ memcpy(buf, "on", 3);
+ else
+ memcpy(buf, "off", 4);
+ return 0;
+}
+
+/*jb.qi add for gamc power down on 20231116 start*/
+
+extern int gmac_power = 1;
+int gmac_power_flag = 0;
+
+ssize_t gmac_power_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ int val = 0;
+ int ret;
+ ret = sscanf(buf, "%d", &val);
+ if(ret < 1)
+ {
+ printk(KERN_INFO "gmac: failed ti read user buf, ret=%d, input %d\n", ret,val);
+ return count;
+ }
+ gmac_power = val;
+ gpio_direction_output(gmac_power_flag, val);
+ return count;
+}
+
+ssize_t gmac_power_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ if(gmac_power)
+ memcpy(buf, "on",3);
+ else
+ memcpy(buf, "off", 4);
+
+ printk("gmac_power %s\n", buf);
+ return 0;
+
+}
+/*jb.qi add for gamc power down on 20231116 end */
+
+/*zw.wang add for switching the primary/secondary mode of gmac on 20240118 start*/
+static int mode_type = -1;
+static int enter_only_one = 0;
+
+ssize_t gmac_master_or_slave_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ int mmd = 0;
+ int reg = 0;
+ int val = 0;
+ int ret;
+ struct platform_device *pdev = to_platform_device(dev);
+ if(!pdev){
+ printk(KERN_ERR "%s : %s pdev : %x \n", __func__, __LINE__, pdev);
+ return -1;
+ }
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ if(!ndev){
+ printk(KERN_ERR "%s : %s ndev : %x \n", __func__, __LINE__, ndev);
+ return -1;
+ }
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ if(!priv){
+ printk(KERN_ERR "%s : %s priv : %x \n", __func__, __LINE__, priv);
+ return -1;
+ }
+
+ ///read mode_type
+ ret = sscanf(buf, "%d", &mode_type);
+ if (ret < 1) {
+ printk(KERN_ERR "Please enter the number 0-3 to enable the corresponding mode \n"
+ "Enter values in the non-0-3 range to get pattern description \n");
+ return count;
+ }
+
+ ///Judgment model
+ if (mode_type < 0 || mode_type > 3) {
+ printk(KERN_DEBUG "Please enter the number range 0-3\n"
+ "0: Set the slave mode \n"
+ "1: Set the main mode \n"
+ "2: indicates setting SQI value view mode \n"
+ "3: Set the VCT value view mode \n"
+ "After the mode is set, the corresponding value can be obtained\n");
+ return ret ? ret : count;
+ }
+
+ ///Set the Ethernet slave mode
+ if (mode_type == 0) {
+ mmd = 0x1;
+ reg = 0x834;
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ val = mdiobus_read(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e);
+
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, val & (~BIT(14)));
+ }
+ ///Set the Ethernet master mode
+ else if (mode_type == 1) {
+ mmd = 0x1;
+ reg = 0x834;
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ val = mdiobus_read(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e);
+
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, val | BIT(14));
+ }
+ return count;
+}
+
+ssize_t gmac_master_or_slave_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ int mmd = 0;
+ int reg = 0;
+ int val = 0;
+ int len = 0;
+ int ret;
+ struct platform_device *pdev = to_platform_device(dev);
+ if(!pdev){
+ printk(KERN_ERR "%s : %s pdev : %x \n", __func__, __LINE__, pdev);
+ return -1;
+ }
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ if(!ndev){
+ printk(KERN_ERR "%s : %s ndev : %x \n", __func__, __LINE__, ndev);
+ return -1;
+ }
+ struct zx29_gmac_dev *priv = (struct zx29_gmac_dev *)netdev_priv(ndev);
+ if(!priv){
+ printk(KERN_ERR "%s : %s priv : %x \n", __func__, __LINE__, priv);
+ return -1;
+ }
+
+ ///Reentrant prevention
+ if(enter_only_one == 1)
+ {
+ return 0;
+ }
+ enter_only_one = 1;
+
+ ///Read the network master/slave
+ if (mode_type == 0 || mode_type == 1) {
+ mmd = 0x1;
+ reg = 0x834;
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ val = mdiobus_read(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e) & BIT(14);
+ if(val)
+ memcpy(buf, "Master\n",7);
+ else
+ memcpy(buf, "Slave\n", 6);
+
+ printk(KERN_DEBUG "mode_type %d - gmac_master_or_slave is %s\n", mode_type, buf);
+
+ }
+ ///Obtain the cable quality SQI value
+ else if(mode_type == 2){
+ mmd = 0x1;
+ reg = 0x8B10;
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ val = mdiobus_read(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e);
+ sprintf(buf, "0x%x\n", val);
+ sprintf(buf, "SQI : 0x%x\n", val);
+ printk(KERN_DEBUG "mode_type %d - SQI is 0x%x", mode_type, val);
+
+ }
+ ///Obtain short circuit, open circuit and normal connection of VCT
+ else if(mode_type == 3){
+ ///--TDR Enable
+ mmd = 0x1;
+ reg = 0x8B00;
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, BIT(14) | BIT(12));
+ msleep(10);
+ ///--Read VCT
+ mmd = 0x1;
+ reg = 0x8B02;
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ val = mdiobus_read(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e);
+ printk(KERN_DEBUG "Open status: %s - Short status: %s\n",
+ (val & BIT(1)) ? "Open" : "Normal", (val & BIT(0)) ? "Short" : "Normal");
+ sprintf(buf, "Open status: %s\nShort status: %s\n",
+ (val & BIT(1)) ? "Open" : "Normal", (val & BIT(0)) ? "Short" : "Normal");
+ reg = 0x8B01;
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ val = mdiobus_read(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e);
+ sprintf(buf, "%sDistance status: 0x%x\n", buf, val);
+ printk(KERN_DEBUG "mode_type %d - Distance status is 0x%x\n", mode_type, val);
+
+ ///--TDR Disable
+ mmd = 0x1;
+ reg = 0x8B00;
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, reg);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0d, 0x4000 | mmd);
+ mdiobus_write(priv->phydev->mdio.bus, priv->phydev->mdio.addr, 0x0e, 0);
+
+ }
+ ///Get model help information
+ else{
+ sprintf(buf, "Please enter the number range 0-3\n"
+ "0: Set the slave mode \n"
+ "1: Set the main mode \n"
+ "2: indicates setting SQI value view mode \n"
+ "3: Set the VCT value view mode \n"
+ "After the mode is set, the corresponding value can be obtained\n");
+ printk(KERN_DEBUG "Please enter the number range 0-3\n"
+ "0: Set the slave mode \n"
+ "1: Set the main mode \n"
+ "2: indicates setting SQI value view mode \n"
+ "3: Set the VCT value view mode \n"
+ "After the mode is set, the corresponding value can be obtained\n");
+ }
+ enter_only_one = 0;
+ return strlen(buf);
+
+}
+
+/*zw.wang add for switching the primary/secondary mode of gmac on 20240118 end */
+
+static DEVICE_ATTR(gmac_test, 0664, show_fun, store_fun);
+static DEVICE_ATTR(mdio_test, 0664, mdio_show, mdio_store);
+static DEVICE_ATTR(free_mdio, 0664, free_mdio_show, free_mdio_store);
+static DEVICE_ATTR(debug_on, 0664, debug_on_show, debug_on_store);
+static DEVICE_ATTR(gmac_power, 0664, gmac_power_show, gmac_power_store);//jb.qi add for gamc power down on 20231116
+static DEVICE_ATTR(gmac_master_or_slave, 0664, gmac_master_or_slave_show, gmac_master_or_slave_store);//zw.wang add for switching the primary/secondary mode of gmac on 20240118
+
+static int zx29_gmac_probe(struct platform_device *pdev)
+{
+ struct zx29_gmac_dev *prv = NULL;
+ struct net_device *ndev = alloc_etherdev(sizeof(struct zx29_gmac_dev));
+ volatile unsigned int *gmac = NULL;
+ struct device_node *np = pdev->dev.of_node;
+ int ret = -1;
+ unsigned long i;
+ struct mii_bus *mb;
+ struct resource *iomem;
+ void __iomem *base = NULL;
+ struct pinctrl *pctrl;
+ struct pinctrl_state *state0;
+ enum of_gpio_flags flags;
+ int gpio = 0;
+ char board_name[128] = {"init_failed"};
+
+ printk("[%s] #########zx29_gmac_probe begin.\n", __func__);
+ if (!ndev)
+ return -ENOMEM;
+
+ device_create_file(&pdev->dev, &dev_attr_gmac_test);
+ device_create_file(&pdev->dev, &dev_attr_mdio_test);
+ device_create_file(&pdev->dev, &dev_attr_free_mdio);
+ device_create_file(&pdev->dev, &dev_attr_debug_on);
+ device_create_file(&pdev->dev, &dev_attr_gmac_power);//jb.qi add for gamc power down on 20231116
+ device_create_file(&pdev->dev, &dev_attr_gmac_master_or_slave);//zw.wang add for switching the primary/secondary mode of gmac on 20240118
+
+ prv = netdev_priv(ndev);
+ memset(prv, 0, sizeof(*prv));
+ prv->stopped = 1;
+
+ pctrl = devm_pinctrl_get(&pdev->dev);
+ if (IS_ERR(pctrl)) {
+ dev_warn(&pdev->dev, "Failed to get test pins");
+ pctrl = NULL;
+ goto errirq;
+ }
+
+#ifdef CONFIG_MARVELL_88Q1110 //zw.wang phy driver support for Marvell_88q1110 on 20240417
+ state0 = pinctrl_lookup_state(pctrl, "state0");
+#else
+ state0 = pinctrl_lookup_state(pctrl, "default");
+#endif
+ if (IS_ERR(state0)) {
+ dev_err(&pdev->dev, "TEST: missing state0\n");
+ goto pinctrl_init_end;
+ }
+
+ if (pinctrl_select_state(pctrl, state0) < 0) {
+ dev_err(&pdev->dev, "setting state0 failed\n");
+ goto pinctrl_init_end;
+ }
+
+#ifdef CONFIG_MARVELL_88Q1110 //zw.wang phy driver support for Marvell_88q1110 on 20240417
+ prv->gpio_power[2] = of_get_gpio_flags(pdev->dev.of_node, 2, &flags);
+ ret = gpio_request(prv->gpio_power[2], "phy_power"); /* gpio 51 */
+ gpio_direction_output(prv->gpio_power[2], 1);
+ mdelay(15);
+#endif
+
+ prv->gpio_power[0] = of_get_gpio_flags(pdev->dev.of_node, 0, &flags);
+ ret = gpio_request(prv->gpio_power[0], "gmac_power"); /* gpio 83/124 */
+ gpio_direction_output(prv->gpio_power[0], 1);
+ mdelay(15);
+#ifdef CONFIG_MDIO_C45 //zw.wang Customer chooses phy c22/c45 issues on 20240301
+ prv->gpio_power[1] = of_get_gpio_flags(pdev->dev.of_node, 1, &flags);
+ ret = gpio_request(prv->gpio_power[1], "phy_rst"); /* gpio 63 */
+ gpio_direction_output(prv->gpio_power[1], 0);
+ mdelay(10);
+ gpio_direction_output(prv->gpio_power[1], 1);
+ mdelay(15);
+#endif
+
+ SET_NETDEV_DEV(ndev, &pdev->dev); //if not, will panic
+
+ base = devm_platform_ioremap_resource(pdev, 0);
+ gmac_power_flag = prv->gpio_power[0];//jb.qi add for gamc power down on 20231116
+ ndev->base_addr = base;/*iomem->start;*/
+ if (!ndev->base_addr)
+ return -ENXIO;
+
+#ifndef GMAC_NO_INT
+ ndev->irq = platform_get_irq(pdev, 0);
+#endif
+ ndev->netdev_ops = &zx29_gmac_netdev_ops;
+ ndev->ethtool_ops = &zx29_gmac_ethtool_ops;
+
+ gmac = (unsigned *)ndev->base_addr;
+
+ dma_disable();
+ mac_disable();
+ mac_int_disable();
+
+ spin_lock_init(&prv->lock);
+
+
+/* wake_lock_init(&prv->wake_lock, WAKE_LOCK_SUSPEND, "gmac_pm"); //what replace?
+ wake_lock(&prv->wake_lock); */
+ device_init_wakeup(&pdev->dev, true);
+
+
+ zx29_gmac_set_macaddr(ndev);
+
+#ifndef GMAC_NO_INT
+ ret = request_irq(ndev->irq, zx29_gmac_interrupt, 0, ndev->name, ndev);
+ if (ret) {
+ printk(KERN_ERR "irq request failed: %d\n", ndev->irq);
+ goto errirq;
+ }
+#endif
+
+ ret = register_netdev(ndev);
+ if (ret) {
+ printk(KERN_ERR "error registering device %s\n",
+ ndev->name);
+ goto errdev;
+ }
+
+ of_property_read_u32(np, "port-nums", &prv->nports);
+ of_property_read_u32(np, "rmii-ports", &prv->rmii_port);
+ prv->base_addr = ndev->base_addr;
+
+ prv->netdev = ndev;
+
+ mb = mdiobus_alloc();
+ if (!mb) {
+ printk(KERN_ERR "error allocating mii bus\n");
+ goto errmii;
+ }
+ mb->name = "zx29_gmac_mii";
+ mb->read = zx29mii_read;
+ mb->write = zx29mii_write;
+ mb->reset = zx29mii_reset;
+ mb->priv = prv;
+ snprintf(mb->id, MII_BUS_ID_SIZE, "%s-%x", "zx29_gmac", 0);
+ of_property_read_u32(np, "port-mask", &mb->phy_mask);
+/* mb->irq = &prv->mii.irq[0]; */
+ for (i = 0; i < PHY_MAX_ADDR; i++) {
+ int n = platform_get_irq(pdev, i + 1); /* devtrrr modify */
+ if (n < 0)
+ n = PHY_POLL;
+ prv->mii.irq[i] = n;
+ mb->irq[i] = n;
+ }
+
+ base = devm_platform_ioremap_resource(pdev, 2);
+ gmac_set_clk();
+ base_clk = base;
+
+ base = devm_platform_ioremap_resource(pdev, 1);
+ gmac_phy_release();
+ base_phy_release = base;
+#ifdef CONFIG_MARVELL_88Q1110 //zw.wang phy driver support for Marvell_88q1110 on 20240417
+ mdelay(500);
+#else
+ mdelay(10); //zw.wang@20240306 modify. Here, the jl3103 is set as an example, and other phy peripherals need to be optimized according to different reset stability times
+#endif
+
+ ret = mdiobus_register(mb);
+ if (ret < 0) {
+ printk("[%s] mdiobus register failed!\n", __func__);
+ goto errmdioregister;
+ }
+
+ prv->mii.bus = mb;
+ ret = zx29_gmac_phy_start(ndev);
+ if (ret)
+ goto errphystart;
+
+ if (!(prv->phydev->phy_id == 0x00000000 || prv->phydev->phy_id == 0xffffffff)) {
+#ifndef CONFIG_BOOT_WITHOUT_LOCK
+ pm_stay_awake(&pdev->dev);
+#endif
+ strcpy(board_name, "cpe");
+
+ printk("[%s] phy id = 0x%x \n", __func__, prv->phydev->phy_id);
+ printk("set gmac wakelock!\n");
+ } else {
+ strcpy(board_name, "mdl");
+ netif_device_detach(ndev);
+ }
+
+ platform_set_drvdata(pdev, ndev);
+
+ tasklet_init(&prv->tasklet, zx29_gmac_tasklet, (unsigned long)ndev);
+ g_gmac_tasklet = &prv->tasklet;
+
+
+ prv->dma_rx_vir = dma_alloc_coherent(ndev->dev.parent, GMAC_BUF_LEN, &prv->dma_rx_phy, GFP_KERNEL);
+ if (!prv->dma_rx_vir) { // null, ndev->dev.parent difference?
+ BUG_ON(1);
+ goto errphystart;
+ }
+
+ prv->dma_rx_phy_init = prv->dma_rx_phy;
+ prv->dma_rx_vir_init = prv->dma_rx_vir;
+ prv->dma_tx_phy = prv->dma_rx_phy + GMAC_RX_BUF_LEN;
+ prv->dma_tx_vir = prv->dma_rx_vir + GMAC_RX_BUF_LEN;
+
+#ifdef GMAC_NO_INT
+ sema_init(&prv->sem, 0);
+
+ prv->timer = kzalloc(sizeof(struct hrtimer), GFP_KERNEL);
+ if (!prv->timer) {
+ BUG_ON(1);
+ goto errmalloc;
+ }
+ hrtimer_init(prv->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+
+ prv->timer->function = gmac_timer_callback;
+#endif
+
+ gmac_event_init(board_name);
+/* g_gmac_dev = prv; */ /* no use possible*/
+
+ printk("[%s] probe end\n", __func__);
+ return 0;
+errmalloc:
+ dma_free_coherent(ndev->dev.parent, GMAC_BUF_LEN, &prv->dma_rx_vir, prv->dma_rx_phy);
+
+
+errphystart:
+ mdiobus_unregister(mb);
+
+
+errmdioregister:
+ mdiobus_free(mb);
+
+errmii:
+ unregister_netdev(ndev);
+
+errdev:
+#ifndef GMAC_NO_INT
+ free_irq(ndev->irq, ndev);
+#endif
+
+pinctrl_init_end:
+
+errirq:
+ free_netdev(ndev);
+
+ printk("#########zx29_gmac_probe fail.\n");
+ return ret;
+}
+
+static int zx29_gmac_remove(struct platform_device *pdev)
+{
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ volatile unsigned *gmac = NULL;
+ if (ndev) {
+ struct zx29_gmac_dev *priv = netdev_priv(ndev);
+
+// gpio_direction_output(priv->gpio_power[0], 1);
+// msleep(500);
+ unregister_netdev(ndev);
+
+ phy_disconnect(priv->phydev);
+
+ kobj_gmac_del(NULL);
+
+ mdiobus_unregister(priv->mii.bus);
+ mdiobus_free(priv->mii.bus);
+#ifndef GMAC_NO_INT
+ free_irq(ndev->irq, ndev);
+#endif
+ tasklet_disable(&priv->tasklet);
+ tasklet_kill(&priv->tasklet);
+
+ if (priv->dma_rx_vir)
+ dma_free_coherent(ndev->dev.parent, GMAC_BUF_LEN, priv->dma_rx_vir, priv->dma_rx_phy);
+
+ pm_relax(&pdev->dev);
+ free_netdev(ndev);
+ platform_set_drvdata(pdev, NULL);
+
+#ifdef CONFIG_MDIO_C45 //zw.wang Customer chooses phy c22/c45 issues on 20240301
+ gpio_free(priv->gpio_power[1]);
+#endif
+ gpio_direction_output(priv->gpio_power[0], 0);
+ gpio_free(priv->gpio_power[0]);
+
+ device_remove_file(&pdev->dev, &dev_attr_gmac_test);
+ device_remove_file(&pdev->dev, &dev_attr_mdio_test);
+ device_remove_file(&pdev->dev, &dev_attr_free_mdio);
+ device_remove_file(&pdev->dev, &dev_attr_debug_on);
+ device_remove_file(&pdev->dev, &dev_attr_gmac_power);//jb.qi add for gamc power down on 20231116
+ device_remove_file(&pdev->dev, &dev_attr_gmac_master_or_slave);//zw.wang add for switching the primary/secondary mode of gmac on 20240118
+ }
+ return 0;
+}
+
+static struct dev_pm_ops zx29_gmac_pm_ops = {
+ .suspend = zx29_gmac_suspend,
+ .resume = zx29_gmac_resume,
+};
+
+static const struct of_device_id gmac_match_table[] = {
+ {.compatible = "zte, zx29_gmac",},
+};
+
+static struct platform_driver zx29_gmac_driver = {
+ .probe = zx29_gmac_probe,
+ .remove = zx29_gmac_remove,
+ .driver = {
+ .name = "zx29_gmac",
+ .owner = THIS_MODULE,
+ .pm = &zx29_gmac_pm_ops,
+ .of_match_table = gmac_match_table,
+ },
+};
+
+static int __init zx29_gmac_init(void)
+{
+ return platform_driver_register(&zx29_gmac_driver);
+}
+
+static void __exit zx29_gmac_exit(void)
+{
+ printk("[%s] start exit!\n", __func__);
+ platform_driver_unregister(&zx29_gmac_driver);
+}
+
+module_init(zx29_gmac_init);
+module_exit(zx29_gmac_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ZX29 on chip Ethernet driver");
+MODULE_AUTHOR("zhu jianlinag <zhu.jianliang@zte.com.cn>");
diff --git a/upstream/linux-5.10/drivers/net/ethernet/zte/zx29_gmac_event.c b/upstream/linux-5.10/drivers/net/ethernet/zte/zx29_gmac_event.c
new file mode 100755
index 0000000..750580b
--- /dev/null
+++ b/upstream/linux-5.10/drivers/net/ethernet/zte/zx29_gmac_event.c
@@ -0,0 +1,298 @@
+/*
+ * Ethernet driver for zte zx2975xx gmac on chip network device
+ * (c)2008 http://www.zte.com.cn
+ * Authors: zhang dongdong <zhang.dongdong16@zte.com.cn>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/phy.h>
+#include <linux/platform_device.h>
+#include <linux/gmac/gmac.h>
+#include "zx29_gmac.h"
+
+extern void v7_dma_map_area(const void *, size_t, int);
+extern unsigned long virt_to_phys_ap(unsigned long virt);
+
+void dma_map(const void * addr, size_t len, int flags)
+{
+ v7_dma_map_area(addr, len, flags);
+}
+EXPORT_SYMBOL(dma_map);
+
+unsigned long virt_to_phys_ap_new(unsigned long virt_addr)
+{
+ return virt_to_phys_ap(virt_addr);
+}
+EXPORT_SYMBOL(virt_to_phys_ap_new);
+
+int debug_on = 0;
+EXPORT_SYMBOL(debug_on);
+
+struct kset *kset_gmac;
+struct kobject *gmackobj = NULL;
+struct kobject *typekobj = NULL;
+char type[8] = { 0 };
+u32 zx29_gmac_plug_state[3] = {0}; /* 0:phy 1:sw_wan 2:sw_lan */
+
+static struct attribute gmac_phy_plug_attr = {
+ .name = "eth_phy_state",
+ .mode = S_IRWXUGO,
+};
+
+static struct attribute gmac_sw_wan_plug_attr = {
+ .name = "eth_sw_wan_state",
+ .mode = S_IRWXUGO,
+};
+
+static struct attribute gmac_sw_lan_plug_attr = {
+ .name = "eth_sw_lan_state",
+ .mode = S_IRWXUGO,
+};
+
+static struct attribute board_type = {
+ .name = "type",
+ .mode = S_IRWXUGO,
+};
+
+static struct attribute *gmac_status_attrs[] = {
+ &gmac_phy_plug_attr,
+ &gmac_sw_wan_plug_attr,
+ &gmac_sw_lan_plug_attr,
+ &board_type,
+ NULL,
+};
+
+ssize_t kobj_gmac_show(struct kobject *kobject,struct attribute *attr,char *buf)
+{
+ unsigned link =0;
+
+ if(!strcmp(attr->name,"eth_phy_state")) {
+ if(zx29_gmac_plug_state[0] == 0)
+ sprintf(buf, "%s","0");
+ else
+ sprintf(buf, "%s","1");
+ } else if(!strcmp(attr->name,"eth_sw_wan_state")) {
+ if(zx29_gmac_plug_state[1] == 0)
+ sprintf(buf, "%s","0");
+ else
+ sprintf(buf, "%s","1");
+ } else if(!strcmp(attr->name,"eth_sw_lan_state")) {
+ if(zx29_gmac_plug_state[2] == 0)
+ sprintf(buf, "%s","0");
+ else
+ sprintf(buf, "%s","1");
+ } else if (!strcmp(attr->name,"type")) {
+ sprintf(buf, "%s", type);
+ } else {
+ printk("invalidate attr name.\n");
+ }
+
+ return strlen(buf);
+}
+
+ssize_t kobj_gmac_store(struct kobject *kobject, struct attribute *attr, const char *buf, size_t size)
+{
+ unsigned int value = 0;
+ value = simple_strtoul(buf, NULL, 4);
+ printk("attrname: %s.\n", attr->name);
+ if (!strcmp(attr->name, "eth_phy_state")) {
+ zx29_gmac_plug_state[0] = value;
+ } else if (!strcmp(attr->name,"eth_sw_wan_state")) {
+ zx29_gmac_plug_state[1] = value;
+ } else if (!strcmp(attr->name,"eth_sw_lan_state")) {
+ zx29_gmac_plug_state[2] = value;
+ } else {
+ printk("invalidate attr name.\n");
+ }
+ return size;
+}
+
+static struct sysfs_ops obj_gmac_sysops = {
+ .show = kobj_gmac_show,
+ .store = kobj_gmac_store,
+};
+
+static void kobj_gmac_release(struct kobject *kobject)
+{
+ printk("[gmac kobj_test: release!]\n");
+}
+
+static void kobj_type_release(struct kobject *kobject)
+{
+ printk("[type kobj_test: release!]\n");
+}
+
+
+void kobj_gmac_del(struct kobject *kobject)
+{
+ kset_unregister(kset_gmac);
+
+ kobject_uevent(typekobj, KOBJ_REMOVE);
+ kobject_del(typekobj);
+ kobject_put(typekobj);
+ kfree(typekobj);
+
+ kobject_uevent(gmackobj, KOBJ_REMOVE);
+ kobject_del(gmackobj);
+ kobject_put(gmackobj);
+
+ kfree(gmackobj);
+
+ printk("[gmac kobj_test: delete!]\n");
+}
+EXPORT_SYMBOL(kobj_gmac_del);
+
+static struct kobj_type gmacktype =
+{ .release = kobj_gmac_release,
+ .sysfs_ops = &obj_gmac_sysops,
+ .default_attrs = gmac_status_attrs,
+};
+
+static struct kobj_type typektype =
+{ .release = kobj_type_release,
+// .sysfs_ops = &obj_gmac_sysops,
+// .default_attrs = gmac_status_attrs,
+};
+
+
+static int kset_filter(struct kset *kset,struct kobject *kobj)
+{
+ printk("kset Filter: kobj %s.\n",kobj->name);
+ return 1;
+}
+
+static const char *kset_name(struct kset *kset,struct kobject *kobj)
+{
+ static char buf[20];
+ printk("Name: kobj %s.\n",kobj->name);
+ sprintf(buf,"%s","gmac");
+ return buf;
+}
+
+static int kset_uevent(struct kset *kset, struct kobject *kobj, struct kobj_uevent_env *env)
+{
+ int i = 0;
+ printk("uevent: kobj %s.\n",kobj->name);
+ while (i < env->envp_idx) {
+ printk("%s.\n",env->envp[i]);
+ i++;
+ }
+
+ return 0;
+}
+
+static struct kset_uevent_ops gmac_uevent_ops =
+{
+ .filter = kset_filter,
+ .name = kset_name,
+ .uevent = kset_uevent,
+};
+
+void gmac_event_notify(GMAC_NOTIFY_EVENT notify_type, void *puf)
+{
+ int rtv = -1;
+ enum kobject_action action = KOBJ_UNBIND;
+ char *envp_phy_ext[] = {"GMACEVENT=gmac_eth_phy",NULL};
+ char *envp_sw_wan_ext[] = {"GMACEVENT=gmac_eth_sw_wan",NULL};
+ char *envp_sw_lan_ext[] = {"GMACEVENT=gmac_eth_sw_lan",NULL};
+
+ switch (notify_type) {
+ case GMAC_ETH_PHY_PLUGIN:
+ printk("gmac eth phy plugin \n");
+ action = KOBJ_ADD;
+ zx29_gmac_plug_state[0] = 1;
+ if (gmackobj)
+ rtv = kobject_uevent_env(gmackobj, action, envp_phy_ext);
+ break;
+
+ case GMAC_ETH_PHY_PLUGOUT:
+ printk("gmac eth phy plugout \n");
+ action = KOBJ_REMOVE;
+ zx29_gmac_plug_state[0] = 0;
+ if(gmackobj)
+ rtv = kobject_uevent_env(gmackobj, action,envp_phy_ext);
+ break;
+
+ case GMAC_ETH_SW_WAN_PLUGIN:
+ printk("gmac eth switch wan plugin \n");
+ action = KOBJ_ADD;
+ zx29_gmac_plug_state[1] = 1;
+ if(gmackobj)
+ rtv = kobject_uevent_env(gmackobj, action,envp_sw_wan_ext);
+ break;
+
+ case GMAC_ETH_SW_WAN_PLUGOUT:
+ printk("gmac eth switch wan plugout \n");
+ action = KOBJ_REMOVE;
+ zx29_gmac_plug_state[1] = 0;
+ if(gmackobj)
+ rtv = kobject_uevent_env(gmackobj, action,envp_sw_wan_ext);
+ break;
+
+ case GMAC_ETH_SW_LAN_PLUGIN:
+ printk("gmac eth switch lan plugin \n");
+ action = KOBJ_ADD;
+ zx29_gmac_plug_state[2] = 1;
+ if(gmackobj)
+ rtv = kobject_uevent_env(gmackobj, action,envp_sw_lan_ext);
+ break;
+
+ case GMAC_ETH_SW_LAN_PLUGOUT:
+ printk("gmac eth switch lan plugout \n");
+ action = KOBJ_REMOVE;
+ zx29_gmac_plug_state[2] = 0;
+ if(gmackobj)
+ rtv = kobject_uevent_env(gmackobj, action,envp_sw_lan_ext);
+ break;
+
+ default:
+ printk(KERN_WARNING "UNKWON GMAC EVENT \n");
+ break;
+ }
+
+ printk(KERN_WARNING "rtv:%d \n",rtv);
+}
+
+EXPORT_SYMBOL(gmac_event_notify);
+
+int gmac_event_init(const char *name)
+{
+ int ret = 0;
+ /* 创建并注册 kset_p */
+ gmackobj = kzalloc(sizeof(*gmackobj),GFP_KERNEL);
+ if(!gmackobj){
+ printk(KERN_WARNING "mallock gmackobj failed \n");
+ return 0;
+ }
+ kset_gmac = kset_create_and_add("gmac", &gmac_uevent_ops, NULL);
+ kobject_init(gmackobj, &gmacktype);
+ kobject_add(gmackobj,&kset_gmac->kobj,"%s","gmacconfig");
+ gmackobj->kset = kset_gmac;
+
+ typekobj = kzalloc(sizeof(*typekobj),GFP_KERNEL);
+ if(!typekobj){
+ printk(KERN_WARNING "mallock gmackobj failed \n");
+ return 0;
+ }
+// kset_gmac = kset_create_and_add("gmac", &gmac_uevent_ops, NULL);
+ kobject_init(typekobj, &typektype);
+ kobject_add(typekobj,&kset_gmac->kobj,"%s",name);
+ typekobj->kset = kset_gmac;
+
+ strcpy(type, name);
+
+ return ret;
+}
+EXPORT_SYMBOL(gmac_event_init);
diff --git a/upstream/linux-5.10/drivers/net/phy/phy_device.c b/upstream/linux-5.10/drivers/net/phy/phy_device.c
new file mode 100755
index 0000000..d9b53ba
--- /dev/null
+++ b/upstream/linux-5.10/drivers/net/phy/phy_device.c
@@ -0,0 +1,3113 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Framework for finding and configuring PHYs.
+ * Also contains generic PHY driver
+ *
+ * Author: Andy Fleming
+ *
+ * Copyright (c) 2004 Freescale Semiconductor, Inc.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/bitmap.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/mdio.h>
+#include <linux/mii.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/phy.h>
+#include <linux/phy_led_triggers.h>
+#include <linux/property.h>
+#include <linux/sfp.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/uaccess.h>
+#include <linux/unistd.h>
+
+MODULE_DESCRIPTION("PHY library");
+MODULE_AUTHOR("Andy Fleming");
+MODULE_LICENSE("GPL");
+
+__ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_features) __ro_after_init;
+EXPORT_SYMBOL_GPL(phy_basic_features);
+
+__ETHTOOL_DECLARE_LINK_MODE_MASK(phy_basic_t1_features) __ro_after_init;
+EXPORT_SYMBOL_GPL(phy_basic_t1_features);
+
+__ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_features) __ro_after_init;
+EXPORT_SYMBOL_GPL(phy_gbit_features);
+
+__ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_fibre_features) __ro_after_init;
+EXPORT_SYMBOL_GPL(phy_gbit_fibre_features);
+
+__ETHTOOL_DECLARE_LINK_MODE_MASK(phy_gbit_all_ports_features) __ro_after_init;
+EXPORT_SYMBOL_GPL(phy_gbit_all_ports_features);
+
+__ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_features) __ro_after_init;
+EXPORT_SYMBOL_GPL(phy_10gbit_features);
+
+__ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_fec_features) __ro_after_init;
+EXPORT_SYMBOL_GPL(phy_10gbit_fec_features);
+
+const int phy_basic_ports_array[3] = {
+ ETHTOOL_LINK_MODE_Autoneg_BIT,
+ ETHTOOL_LINK_MODE_TP_BIT,
+ ETHTOOL_LINK_MODE_MII_BIT,
+};
+EXPORT_SYMBOL_GPL(phy_basic_ports_array);
+
+const int phy_fibre_port_array[1] = {
+ ETHTOOL_LINK_MODE_FIBRE_BIT,
+};
+EXPORT_SYMBOL_GPL(phy_fibre_port_array);
+
+const int phy_all_ports_features_array[7] = {
+ ETHTOOL_LINK_MODE_Autoneg_BIT,
+ ETHTOOL_LINK_MODE_TP_BIT,
+ ETHTOOL_LINK_MODE_MII_BIT,
+ ETHTOOL_LINK_MODE_FIBRE_BIT,
+ ETHTOOL_LINK_MODE_AUI_BIT,
+ ETHTOOL_LINK_MODE_BNC_BIT,
+ ETHTOOL_LINK_MODE_Backplane_BIT,
+};
+EXPORT_SYMBOL_GPL(phy_all_ports_features_array);
+
+const int phy_10_100_features_array[4] = {
+ ETHTOOL_LINK_MODE_10baseT_Half_BIT,
+ ETHTOOL_LINK_MODE_10baseT_Full_BIT,
+ ETHTOOL_LINK_MODE_100baseT_Half_BIT,
+ ETHTOOL_LINK_MODE_100baseT_Full_BIT,
+};
+EXPORT_SYMBOL_GPL(phy_10_100_features_array);
+
+const int phy_basic_t1_features_array[2] = {
+ ETHTOOL_LINK_MODE_TP_BIT,
+ ETHTOOL_LINK_MODE_100baseT1_Full_BIT,
+};
+EXPORT_SYMBOL_GPL(phy_basic_t1_features_array);
+
+const int phy_gbit_features_array[2] = {
+ ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
+ ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
+};
+EXPORT_SYMBOL_GPL(phy_gbit_features_array);
+
+const int phy_10gbit_features_array[1] = {
+ ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
+};
+EXPORT_SYMBOL_GPL(phy_10gbit_features_array);
+
+static const int phy_10gbit_fec_features_array[1] = {
+ ETHTOOL_LINK_MODE_10000baseR_FEC_BIT,
+};
+
+__ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_full_features) __ro_after_init;
+EXPORT_SYMBOL_GPL(phy_10gbit_full_features);
+
+static const int phy_10gbit_full_features_array[] = {
+ ETHTOOL_LINK_MODE_10baseT_Full_BIT,
+ ETHTOOL_LINK_MODE_100baseT_Full_BIT,
+ ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
+ ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
+};
+
+//status = phy_read_cl(phydev, MII_BMSR);
+static int phy_read_cl(struct phy_device *phydev, u32 regnum)
+{
+ int val = 0;
+
+ mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, 0x0d, 1);
+ mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, 0x0e, regnum);
+ mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, 0x0d, 0x4000 | 1);
+ val = mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, 0x0e);
+
+ return val;
+}
+
+static void features_init(void)
+{
+ /* 10/100 half/full*/
+ linkmode_set_bit_array(phy_basic_ports_array,
+ ARRAY_SIZE(phy_basic_ports_array),
+ phy_basic_features);
+ linkmode_set_bit_array(phy_10_100_features_array,
+ ARRAY_SIZE(phy_10_100_features_array),
+ phy_basic_features);
+
+ /* 100 full, TP */
+ linkmode_set_bit_array(phy_basic_t1_features_array,
+ ARRAY_SIZE(phy_basic_t1_features_array),
+ phy_basic_t1_features);
+
+ /* 10/100 half/full + 1000 half/full */
+ linkmode_set_bit_array(phy_basic_ports_array,
+ ARRAY_SIZE(phy_basic_ports_array),
+ phy_gbit_features);
+ linkmode_set_bit_array(phy_10_100_features_array,
+ ARRAY_SIZE(phy_10_100_features_array),
+ phy_gbit_features);
+ linkmode_set_bit_array(phy_gbit_features_array,
+ ARRAY_SIZE(phy_gbit_features_array),
+ phy_gbit_features);
+
+ /* 10/100 half/full + 1000 half/full + fibre*/
+ linkmode_set_bit_array(phy_basic_ports_array,
+ ARRAY_SIZE(phy_basic_ports_array),
+ phy_gbit_fibre_features);
+ linkmode_set_bit_array(phy_10_100_features_array,
+ ARRAY_SIZE(phy_10_100_features_array),
+ phy_gbit_fibre_features);
+ linkmode_set_bit_array(phy_gbit_features_array,
+ ARRAY_SIZE(phy_gbit_features_array),
+ phy_gbit_fibre_features);
+ linkmode_set_bit_array(phy_fibre_port_array,
+ ARRAY_SIZE(phy_fibre_port_array),
+ phy_gbit_fibre_features);
+
+ /* 10/100 half/full + 1000 half/full + TP/MII/FIBRE/AUI/BNC/Backplane*/
+ linkmode_set_bit_array(phy_all_ports_features_array,
+ ARRAY_SIZE(phy_all_ports_features_array),
+ phy_gbit_all_ports_features);
+ linkmode_set_bit_array(phy_10_100_features_array,
+ ARRAY_SIZE(phy_10_100_features_array),
+ phy_gbit_all_ports_features);
+ linkmode_set_bit_array(phy_gbit_features_array,
+ ARRAY_SIZE(phy_gbit_features_array),
+ phy_gbit_all_ports_features);
+
+ /* 10/100 half/full + 1000 half/full + 10G full*/
+ linkmode_set_bit_array(phy_all_ports_features_array,
+ ARRAY_SIZE(phy_all_ports_features_array),
+ phy_10gbit_features);
+ linkmode_set_bit_array(phy_10_100_features_array,
+ ARRAY_SIZE(phy_10_100_features_array),
+ phy_10gbit_features);
+ linkmode_set_bit_array(phy_gbit_features_array,
+ ARRAY_SIZE(phy_gbit_features_array),
+ phy_10gbit_features);
+ linkmode_set_bit_array(phy_10gbit_features_array,
+ ARRAY_SIZE(phy_10gbit_features_array),
+ phy_10gbit_features);
+
+ /* 10/100/1000/10G full */
+ linkmode_set_bit_array(phy_all_ports_features_array,
+ ARRAY_SIZE(phy_all_ports_features_array),
+ phy_10gbit_full_features);
+ linkmode_set_bit_array(phy_10gbit_full_features_array,
+ ARRAY_SIZE(phy_10gbit_full_features_array),
+ phy_10gbit_full_features);
+ /* 10G FEC only */
+ linkmode_set_bit_array(phy_10gbit_fec_features_array,
+ ARRAY_SIZE(phy_10gbit_fec_features_array),
+ phy_10gbit_fec_features);
+}
+
+void phy_device_free(struct phy_device *phydev)
+{
+ put_device(&phydev->mdio.dev);
+}
+EXPORT_SYMBOL(phy_device_free);
+
+static void phy_mdio_device_free(struct mdio_device *mdiodev)
+{
+ struct phy_device *phydev;
+
+ phydev = container_of(mdiodev, struct phy_device, mdio);
+ phy_device_free(phydev);
+}
+
+static void phy_device_release(struct device *dev)
+{
+ kfree(to_phy_device(dev));
+}
+
+static void phy_mdio_device_remove(struct mdio_device *mdiodev)
+{
+ struct phy_device *phydev;
+
+ phydev = container_of(mdiodev, struct phy_device, mdio);
+ phy_device_remove(phydev);
+}
+
+static struct phy_driver genphy_driver;
+
+static LIST_HEAD(phy_fixup_list);
+static DEFINE_MUTEX(phy_fixup_lock);
+
+static bool mdio_bus_phy_may_suspend(struct phy_device *phydev)
+{
+ struct device_driver *drv = phydev->mdio.dev.driver;
+ struct phy_driver *phydrv = to_phy_driver(drv);
+ struct net_device *netdev = phydev->attached_dev;
+
+ if (!drv || !phydrv->suspend)
+ return false;
+
+ /* PHY not attached? May suspend if the PHY has not already been
+ * suspended as part of a prior call to phy_disconnect() ->
+ * phy_detach() -> phy_suspend() because the parent netdev might be the
+ * MDIO bus driver and clock gated at this point.
+ */
+ if (!netdev)
+ goto out;
+
+ if (netdev->wol_enabled)
+ return false;
+
+ /* As long as not all affected network drivers support the
+ * wol_enabled flag, let's check for hints that WoL is enabled.
+ * Don't suspend PHY if the attached netdev parent may wake up.
+ * The parent may point to a PCI device, as in tg3 driver.
+ */
+ if (netdev->dev.parent && device_may_wakeup(netdev->dev.parent))
+ return false;
+
+ /* Also don't suspend PHY if the netdev itself may wakeup. This
+ * is the case for devices w/o underlaying pwr. mgmt. aware bus,
+ * e.g. SoC devices.
+ */
+ if (device_may_wakeup(&netdev->dev))
+ return false;
+
+out:
+ return !phydev->suspended;
+}
+
+static __maybe_unused int mdio_bus_phy_suspend(struct device *dev)
+{
+ struct phy_device *phydev = to_phy_device(dev);
+
+ /* We must stop the state machine manually, otherwise it stops out of
+ * control, possibly with the phydev->lock held. Upon resume, netdev
+ * may call phy routines that try to grab the same lock, and that may
+ * lead to a deadlock.
+ */
+ if (phydev->attached_dev && phydev->adjust_link)
+ phy_stop_machine(phydev);
+
+ if (!mdio_bus_phy_may_suspend(phydev))
+ return 0;
+
+ phydev->suspended_by_mdio_bus = 1;
+
+ return phy_suspend(phydev);
+}
+
+static __maybe_unused int mdio_bus_phy_resume(struct device *dev)
+{
+ struct phy_device *phydev = to_phy_device(dev);
+ int ret;
+
+ if (!phydev->suspended_by_mdio_bus)
+ goto no_resume;
+
+ phydev->suspended_by_mdio_bus = 0;
+
+ ret = phy_init_hw(phydev);
+ if (ret < 0)
+ return ret;
+
+ ret = phy_resume(phydev);
+ if (ret < 0)
+ return ret;
+no_resume:
+ if (phydev->attached_dev && phydev->adjust_link)
+ phy_start_machine(phydev);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(mdio_bus_phy_pm_ops, mdio_bus_phy_suspend,
+ mdio_bus_phy_resume);
+
+/**
+ * phy_register_fixup - creates a new phy_fixup and adds it to the list
+ * @bus_id: A string which matches phydev->mdio.dev.bus_id (or PHY_ANY_ID)
+ * @phy_uid: Used to match against phydev->phy_id (the UID of the PHY)
+ * It can also be PHY_ANY_UID
+ * @phy_uid_mask: Applied to phydev->phy_id and fixup->phy_uid before
+ * comparison
+ * @run: The actual code to be run when a matching PHY is found
+ */
+int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
+ int (*run)(struct phy_device *))
+{
+ struct phy_fixup *fixup = kzalloc(sizeof(*fixup), GFP_KERNEL);
+
+ if (!fixup)
+ return -ENOMEM;
+
+ strlcpy(fixup->bus_id, bus_id, sizeof(fixup->bus_id));
+ fixup->phy_uid = phy_uid;
+ fixup->phy_uid_mask = phy_uid_mask;
+ fixup->run = run;
+
+ mutex_lock(&phy_fixup_lock);
+ list_add_tail(&fixup->list, &phy_fixup_list);
+ mutex_unlock(&phy_fixup_lock);
+
+ return 0;
+}
+EXPORT_SYMBOL(phy_register_fixup);
+
+/* Registers a fixup to be run on any PHY with the UID in phy_uid */
+int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
+ int (*run)(struct phy_device *))
+{
+ return phy_register_fixup(PHY_ANY_ID, phy_uid, phy_uid_mask, run);
+}
+EXPORT_SYMBOL(phy_register_fixup_for_uid);
+
+/* Registers a fixup to be run on the PHY with id string bus_id */
+int phy_register_fixup_for_id(const char *bus_id,
+ int (*run)(struct phy_device *))
+{
+ return phy_register_fixup(bus_id, PHY_ANY_UID, 0xffffffff, run);
+}
+EXPORT_SYMBOL(phy_register_fixup_for_id);
+
+/**
+ * phy_unregister_fixup - remove a phy_fixup from the list
+ * @bus_id: A string matches fixup->bus_id (or PHY_ANY_ID) in phy_fixup_list
+ * @phy_uid: A phy id matches fixup->phy_id (or PHY_ANY_UID) in phy_fixup_list
+ * @phy_uid_mask: Applied to phy_uid and fixup->phy_uid before comparison
+ */
+int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask)
+{
+ struct list_head *pos, *n;
+ struct phy_fixup *fixup;
+ int ret;
+
+ ret = -ENODEV;
+
+ mutex_lock(&phy_fixup_lock);
+ list_for_each_safe(pos, n, &phy_fixup_list) {
+ fixup = list_entry(pos, struct phy_fixup, list);
+
+ if ((!strcmp(fixup->bus_id, bus_id)) &&
+ ((fixup->phy_uid & phy_uid_mask) ==
+ (phy_uid & phy_uid_mask))) {
+ list_del(&fixup->list);
+ kfree(fixup);
+ ret = 0;
+ break;
+ }
+ }
+ mutex_unlock(&phy_fixup_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL(phy_unregister_fixup);
+
+/* Unregisters a fixup of any PHY with the UID in phy_uid */
+int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask)
+{
+ return phy_unregister_fixup(PHY_ANY_ID, phy_uid, phy_uid_mask);
+}
+EXPORT_SYMBOL(phy_unregister_fixup_for_uid);
+
+/* Unregisters a fixup of the PHY with id string bus_id */
+int phy_unregister_fixup_for_id(const char *bus_id)
+{
+ return phy_unregister_fixup(bus_id, PHY_ANY_UID, 0xffffffff);
+}
+EXPORT_SYMBOL(phy_unregister_fixup_for_id);
+
+/* Returns 1 if fixup matches phydev in bus_id and phy_uid.
+ * Fixups can be set to match any in one or more fields.
+ */
+static int phy_needs_fixup(struct phy_device *phydev, struct phy_fixup *fixup)
+{
+ if (strcmp(fixup->bus_id, phydev_name(phydev)) != 0)
+ if (strcmp(fixup->bus_id, PHY_ANY_ID) != 0)
+ return 0;
+
+ if ((fixup->phy_uid & fixup->phy_uid_mask) !=
+ (phydev->phy_id & fixup->phy_uid_mask))
+ if (fixup->phy_uid != PHY_ANY_UID)
+ return 0;
+
+ return 1;
+}
+
+/* Runs any matching fixups for this phydev */
+static int phy_scan_fixups(struct phy_device *phydev)
+{
+ struct phy_fixup *fixup;
+
+ mutex_lock(&phy_fixup_lock);
+ list_for_each_entry(fixup, &phy_fixup_list, list) {
+ if (phy_needs_fixup(phydev, fixup)) {
+ int err = fixup->run(phydev);
+
+ if (err < 0) {
+ mutex_unlock(&phy_fixup_lock);
+ return err;
+ }
+ phydev->has_fixups = true;
+ }
+ }
+ mutex_unlock(&phy_fixup_lock);
+
+ return 0;
+}
+
+static int phy_bus_match(struct device *dev, struct device_driver *drv)
+{
+ struct phy_device *phydev = to_phy_device(dev);
+ struct phy_driver *phydrv = to_phy_driver(drv);
+ const int num_ids = ARRAY_SIZE(phydev->c45_ids.device_ids);
+ int i;
+
+ if (!(phydrv->mdiodrv.flags & MDIO_DEVICE_IS_PHY))
+ return 0;
+
+ if (phydrv->match_phy_device)
+ return phydrv->match_phy_device(phydev);
+
+ if (phydev->is_c45) {
+ for (i = 1; i < num_ids; i++) {
+ if (phydev->c45_ids.device_ids[i] == 0xffffffff)
+ continue;
+
+ if ((phydrv->phy_id & phydrv->phy_id_mask) ==
+ (phydev->c45_ids.device_ids[i] &
+ phydrv->phy_id_mask))
+ return 1;
+ }
+ return 0;
+ } else {
+ return (phydrv->phy_id & phydrv->phy_id_mask) ==
+ (phydev->phy_id & phydrv->phy_id_mask);
+ }
+}
+
+static ssize_t
+phy_id_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct phy_device *phydev = to_phy_device(dev);
+
+ return sprintf(buf, "0x%.8lx\n", (unsigned long)phydev->phy_id);
+}
+static DEVICE_ATTR_RO(phy_id);
+
+static ssize_t
+phy_interface_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct phy_device *phydev = to_phy_device(dev);
+ const char *mode = NULL;
+
+ if (phy_is_internal(phydev))
+ mode = "internal";
+ else
+ mode = phy_modes(phydev->interface);
+
+ return sprintf(buf, "%s\n", mode);
+}
+static DEVICE_ATTR_RO(phy_interface);
+
+static ssize_t
+phy_has_fixups_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct phy_device *phydev = to_phy_device(dev);
+
+ return sprintf(buf, "%d\n", phydev->has_fixups);
+}
+static DEVICE_ATTR_RO(phy_has_fixups);
+
+static struct attribute *phy_dev_attrs[] = {
+ &dev_attr_phy_id.attr,
+ &dev_attr_phy_interface.attr,
+ &dev_attr_phy_has_fixups.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(phy_dev);
+
+static const struct device_type mdio_bus_phy_type = {
+ .name = "PHY",
+ .groups = phy_dev_groups,
+ .release = phy_device_release,
+ .pm = pm_ptr(&mdio_bus_phy_pm_ops),
+};
+
+static int phy_request_driver_module(struct phy_device *dev, u32 phy_id)
+{
+ int ret;
+
+ ret = request_module(MDIO_MODULE_PREFIX MDIO_ID_FMT,
+ MDIO_ID_ARGS(phy_id));
+ /* We only check for failures in executing the usermode binary,
+ * not whether a PHY driver module exists for the PHY ID.
+ * Accept -ENOENT because this may occur in case no initramfs exists,
+ * then modprobe isn't available.
+ */
+ if (IS_ENABLED(CONFIG_MODULES) && ret < 0 && ret != -ENOENT) {
+ phydev_err(dev, "error %d loading PHY driver module for ID 0x%08lx\n",
+ ret, (unsigned long)phy_id);
+ return ret;
+ }
+
+ return 0;
+}
+
+struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id,
+ bool is_c45,
+ struct phy_c45_device_ids *c45_ids)
+{
+ struct phy_device *dev;
+ struct mdio_device *mdiodev;
+ int ret = 0;
+
+ /* We allocate the device, and initialize the default values */
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return ERR_PTR(-ENOMEM);
+
+ mdiodev = &dev->mdio;
+ mdiodev->dev.parent = &bus->dev;
+ mdiodev->dev.bus = &mdio_bus_type;
+ mdiodev->dev.type = &mdio_bus_phy_type;
+ mdiodev->bus = bus;
+ mdiodev->bus_match = phy_bus_match;
+ mdiodev->addr = addr;
+ mdiodev->flags = MDIO_DEVICE_FLAG_PHY;
+ mdiodev->device_free = phy_mdio_device_free;
+ mdiodev->device_remove = phy_mdio_device_remove;
+
+ dev->speed = SPEED_UNKNOWN;
+ dev->duplex = DUPLEX_UNKNOWN;
+ dev->pause = 0;
+ dev->asym_pause = 0;
+ dev->link = 0;
+ dev->port = PORT_TP;
+ dev->interface = PHY_INTERFACE_MODE_GMII;
+
+ dev->autoneg = AUTONEG_ENABLE;
+
+ dev->is_c45 = is_c45;
+ dev->phy_id = phy_id;
+ if (c45_ids)
+ dev->c45_ids = *c45_ids;
+ dev->irq = bus->irq[addr];
+
+ dev_set_name(&mdiodev->dev, PHY_ID_FMT, bus->id, addr);
+ device_initialize(&mdiodev->dev);
+
+ dev->state = PHY_DOWN;
+
+ mutex_init(&dev->lock);
+ INIT_DELAYED_WORK(&dev->state_queue, phy_state_machine);
+
+ /* Request the appropriate module unconditionally; don't
+ * bother trying to do so only if it isn't already loaded,
+ * because that gets complicated. A hotplug event would have
+ * done an unconditional modprobe anyway.
+ * We don't do normal hotplug because it won't work for MDIO
+ * -- because it relies on the device staying around for long
+ * enough for the driver to get loaded. With MDIO, the NIC
+ * driver will get bored and give up as soon as it finds that
+ * there's no driver _already_ loaded.
+ */
+ if (is_c45 && c45_ids) {
+ const int num_ids = ARRAY_SIZE(c45_ids->device_ids);
+ int i;
+
+ for (i = 1; i < num_ids; i++) {
+ if (c45_ids->device_ids[i] == 0xffffffff)
+ continue;
+
+ ret = phy_request_driver_module(dev,
+ c45_ids->device_ids[i]);
+ if (ret)
+ break;
+ }
+ } else {
+ ret = phy_request_driver_module(dev, phy_id);
+ }
+
+ if (ret) {
+ put_device(&mdiodev->dev);
+ dev = ERR_PTR(ret);
+ }
+
+ return dev;
+}
+EXPORT_SYMBOL(phy_device_create);
+
+/* phy_c45_probe_present - checks to see if a MMD is present in the package
+ * @bus: the target MII bus
+ * @prtad: PHY package address on the MII bus
+ * @devad: PHY device (MMD) address
+ *
+ * Read the MDIO_STAT2 register, and check whether a device is responding
+ * at this address.
+ *
+ * Returns: negative error number on bus access error, zero if no device
+ * is responding, or positive if a device is present.
+ */
+static int phy_c45_probe_present(struct mii_bus *bus, int prtad, int devad)
+{
+ int stat2;
+
+ stat2 = mdiobus_c45_read(bus, prtad, devad, MDIO_STAT2);
+ if (stat2 < 0)
+ return stat2;
+
+ return (stat2 & MDIO_STAT2_DEVPRST) == MDIO_STAT2_DEVPRST_VAL;
+}
+
+/* get_phy_c45_devs_in_pkg - reads a MMD's devices in package registers.
+ * @bus: the target MII bus
+ * @addr: PHY address on the MII bus
+ * @dev_addr: MMD address in the PHY.
+ * @devices_in_package: where to store the devices in package information.
+ *
+ * Description: reads devices in package registers of a MMD at @dev_addr
+ * from PHY at @addr on @bus.
+ *
+ * Returns: 0 on success, -EIO on failure.
+ */
+static int get_phy_c45_devs_in_pkg(struct mii_bus *bus, int addr, int dev_addr,
+ u32 *devices_in_package)
+{
+ int phy_reg;
+
+ phy_reg = mdiobus_c45_read(bus, addr, dev_addr, MDIO_DEVS2);
+ if (phy_reg < 0)
+ return -EIO;
+ *devices_in_package = phy_reg << 16;
+
+ phy_reg = mdiobus_c45_read(bus, addr, dev_addr, MDIO_DEVS1);
+ if (phy_reg < 0)
+ return -EIO;
+ *devices_in_package |= phy_reg;
+
+ return 0;
+}
+
+/**
+ * get_phy_c45_ids - reads the specified addr for its 802.3-c45 IDs.
+ * @bus: the target MII bus
+ * @addr: PHY address on the MII bus
+ * @c45_ids: where to store the c45 ID information.
+ *
+ * Read the PHY "devices in package". If this appears to be valid, read
+ * the PHY identifiers for each device. Return the "devices in package"
+ * and identifiers in @c45_ids.
+ *
+ * Returns zero on success, %-EIO on bus access error, or %-ENODEV if
+ * the "devices in package" is invalid.
+ */
+static int get_phy_c45_ids(struct mii_bus *bus, int addr,
+ struct phy_c45_device_ids *c45_ids)
+{
+ const int num_ids = ARRAY_SIZE(c45_ids->device_ids);
+ u32 devs_in_pkg = 0;
+ int i, ret, phy_reg;
+
+ /* Find first non-zero Devices In package. Device zero is reserved
+ * for 802.3 c45 complied PHYs, so don't probe it at first.
+ */
+ for (i = 1; i < MDIO_MMD_NUM && (devs_in_pkg == 0 ||
+ (devs_in_pkg & 0x1fffffff) == 0x1fffffff); i++) {
+ if (i == MDIO_MMD_VEND1 || i == MDIO_MMD_VEND2) {
+ /* Check that there is a device present at this
+ * address before reading the devices-in-package
+ * register to avoid reading garbage from the PHY.
+ * Some PHYs (88x3310) vendor space is not IEEE802.3
+ * compliant.
+ */
+ ret = phy_c45_probe_present(bus, addr, i);
+ if (ret < 0)
+ return -EIO;
+
+ if (!ret)
+ continue;
+ }
+ phy_reg = get_phy_c45_devs_in_pkg(bus, addr, i, &devs_in_pkg);
+ if (phy_reg < 0)
+ return -EIO;
+ }
+
+ if ((devs_in_pkg & 0x1fffffff) == 0x1fffffff) {
+ /* If mostly Fs, there is no device there, then let's probe
+ * MMD 0, as some 10G PHYs have zero Devices In package,
+ * e.g. Cortina CS4315/CS4340 PHY.
+ */
+ phy_reg = get_phy_c45_devs_in_pkg(bus, addr, 0, &devs_in_pkg);
+ if (phy_reg < 0)
+ return -EIO;
+
+ /* no device there, let's get out of here */
+ if ((devs_in_pkg & 0x1fffffff) == 0x1fffffff)
+ return -ENODEV;
+ }
+
+ /* Now probe Device Identifiers for each device present. */
+ for (i = 1; i < num_ids; i++) {
+ if (!(devs_in_pkg & (1 << i)))
+ continue;
+
+ if (i == MDIO_MMD_VEND1 || i == MDIO_MMD_VEND2) {
+ /* Probe the "Device Present" bits for the vendor MMDs
+ * to ignore these if they do not contain IEEE 802.3
+ * registers.
+ */
+ ret = phy_c45_probe_present(bus, addr, i);
+ if (ret < 0)
+ return ret;
+
+ if (!ret)
+ continue;
+ }
+
+ phy_reg = mdiobus_c45_read(bus, addr, i, MII_PHYSID1);
+ if (phy_reg < 0)
+ return -EIO;
+ c45_ids->device_ids[i] = phy_reg << 16;
+
+ phy_reg = mdiobus_c45_read(bus, addr, i, MII_PHYSID2);
+ if (phy_reg < 0)
+ return -EIO;
+ c45_ids->device_ids[i] |= phy_reg;
+ }
+
+ c45_ids->devices_in_package = devs_in_pkg;
+ /* Bit 0 doesn't represent a device, it indicates c22 regs presence */
+ c45_ids->mmds_present = devs_in_pkg & ~BIT(0);
+
+ return 0;
+}
+
+/**
+ * get_phy_c22_id - reads the specified addr for its clause 22 ID.
+ * @bus: the target MII bus
+ * @addr: PHY address on the MII bus
+ * @phy_id: where to store the ID retrieved.
+ *
+ * Read the 802.3 clause 22 PHY ID from the PHY at @addr on the @bus,
+ * placing it in @phy_id. Return zero on successful read and the ID is
+ * valid, %-EIO on bus access error, or %-ENODEV if no device responds
+ * or invalid ID.
+ */
+static int get_phy_c22_id(struct mii_bus *bus, int addr, u32 *phy_id)
+{
+ int phy_reg;
+
+ /* Grab the bits from PHYIR1, and put them in the upper half */
+// phy_reg = mdiobus_read(bus, addr, MII_PHYSID1);
+#ifdef CONFIG_MDIO_C45 //zw.wang Customer chooses phy c22/c45 issues on 20240301
+ mdiobus_write(bus, addr, 0x0d, 1);
+ mdiobus_write(bus, addr, 0x0e, 2);
+ mdiobus_write(bus, addr, 0x0d, 0x4000 | 1);
+ phy_reg = mdiobus_read(bus, addr, 0x0e);
+#else
+ phy_reg = mdiobus_read(bus, addr, MII_PHYSID1);
+#endif
+ if (phy_reg < 0) {
+ /* returning -ENODEV doesn't stop bus scanning */
+ return (phy_reg == -EIO || phy_reg == -ENODEV) ? -ENODEV : -EIO;
+ }
+
+ *phy_id = phy_reg << 16;
+
+ /* Grab the bits from PHYIR2, and put them in the lower half */
+// phy_reg = mdiobus_read(bus, addr, MII_PHYSID2);
+#ifdef CONFIG_MDIO_C45
+ mdiobus_write(bus, addr, 0x0d, 1);
+ mdiobus_write(bus, addr, 0x0e, 3);
+ mdiobus_write(bus, addr, 0x0d, 0x4000 | 1);
+ phy_reg = mdiobus_read(bus, addr, 0x0e);
+#else
+ phy_reg = mdiobus_read(bus, addr, MII_PHYSID2);
+#endif
+ if (phy_reg < 0) {
+ /* returning -ENODEV doesn't stop bus scanning */
+ return (phy_reg == -EIO || phy_reg == -ENODEV) ? -ENODEV : -EIO;
+ }
+
+ *phy_id |= phy_reg;
+
+#ifdef CONFIG_MDIO_C45
+ printk("[%s] read with c45 phy id:0x%x\n", __func__, *phy_id);
+#else
+ printk("[%s] read with c22 phy id:0x%x\n", __func__, *phy_id);
+#endif
+ /* If the phy_id is mostly Fs, there is no device there */
+ if ((*phy_id & 0x1fffffff) == 0x1fffffff)
+ return -ENODEV;
+
+ return 0;
+}
+
+/**
+ * get_phy_device - reads the specified PHY device and returns its @phy_device
+ * struct
+ * @bus: the target MII bus
+ * @addr: PHY address on the MII bus
+ * @is_c45: If true the PHY uses the 802.3 clause 45 protocol
+ *
+ * Probe for a PHY at @addr on @bus.
+ *
+ * When probing for a clause 22 PHY, then read the ID registers. If we find
+ * a valid ID, allocate and return a &struct phy_device.
+ *
+ * When probing for a clause 45 PHY, read the "devices in package" registers.
+ * If the "devices in package" appears valid, read the ID registers for each
+ * MMD, allocate and return a &struct phy_device.
+ *
+ * Returns an allocated &struct phy_device on success, %-ENODEV if there is
+ * no PHY present, or %-EIO on bus access error.
+ */
+struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
+{
+ struct phy_c45_device_ids c45_ids;
+ u32 phy_id = 0;
+ int r;
+
+ c45_ids.devices_in_package = 0;
+ c45_ids.mmds_present = 0;
+ memset(c45_ids.device_ids, 0xff, sizeof(c45_ids.device_ids));
+
+ if (is_c45)
+ r = get_phy_c45_ids(bus, addr, &c45_ids);
+ else
+ r = get_phy_c22_id(bus, addr, &phy_id);
+
+ if (r)
+ return ERR_PTR(r);
+
+ return phy_device_create(bus, addr, phy_id, is_c45, &c45_ids);
+}
+EXPORT_SYMBOL(get_phy_device);
+
+/**
+ * phy_device_register - Register the phy device on the MDIO bus
+ * @phydev: phy_device structure to be added to the MDIO bus
+ */
+int phy_device_register(struct phy_device *phydev)
+{
+ int err;
+
+ err = mdiobus_register_device(&phydev->mdio);
+ if (err)
+ return err;
+
+ /* Deassert the reset signal */
+ phy_device_reset(phydev, 0);
+
+ /* Run all of the fixups for this PHY */
+ err = phy_scan_fixups(phydev);
+ if (err) {
+ phydev_err(phydev, "failed to initialize\n");
+ goto out;
+ }
+
+ err = device_add(&phydev->mdio.dev);
+ if (err) {
+ phydev_err(phydev, "failed to add\n");
+ goto out;
+ }
+
+ return 0;
+
+ out:
+ /* Assert the reset signal */
+ phy_device_reset(phydev, 1);
+
+ mdiobus_unregister_device(&phydev->mdio);
+ return err;
+}
+EXPORT_SYMBOL(phy_device_register);
+
+/**
+ * phy_device_remove - Remove a previously registered phy device from the MDIO bus
+ * @phydev: phy_device structure to remove
+ *
+ * This doesn't free the phy_device itself, it merely reverses the effects
+ * of phy_device_register(). Use phy_device_free() to free the device
+ * after calling this function.
+ */
+void phy_device_remove(struct phy_device *phydev)
+{
+ if (phydev->mii_ts)
+ unregister_mii_timestamper(phydev->mii_ts);
+
+ device_del(&phydev->mdio.dev);
+
+ /* Assert the reset signal */
+ phy_device_reset(phydev, 1);
+
+ mdiobus_unregister_device(&phydev->mdio);
+}
+EXPORT_SYMBOL(phy_device_remove);
+
+/**
+ * phy_find_first - finds the first PHY device on the bus
+ * @bus: the target MII bus
+ */
+struct phy_device *phy_find_first(struct mii_bus *bus)
+{
+ struct phy_device *phydev;
+ int addr;
+
+ for (addr = 0; addr < PHY_MAX_ADDR; addr++) {
+ phydev = mdiobus_get_phy(bus, addr);
+ if (phydev) {
+ printk("[%s] addr:%d\n", __func__, addr);
+ return phydev;
+ }
+ }
+ return NULL;
+}
+EXPORT_SYMBOL(phy_find_first);
+
+static void phy_link_change(struct phy_device *phydev, bool up)
+{
+ struct net_device *netdev = phydev->attached_dev;
+
+ if (up)
+ netif_carrier_on(netdev);
+ else
+ netif_carrier_off(netdev);
+ phydev->adjust_link(netdev);
+ if (phydev->mii_ts && phydev->mii_ts->link_state)
+ phydev->mii_ts->link_state(phydev->mii_ts, phydev);
+}
+
+/**
+ * phy_prepare_link - prepares the PHY layer to monitor link status
+ * @phydev: target phy_device struct
+ * @handler: callback function for link status change notifications
+ *
+ * Description: Tells the PHY infrastructure to handle the
+ * gory details on monitoring link status (whether through
+ * polling or an interrupt), and to call back to the
+ * connected device driver when the link status changes.
+ * If you want to monitor your own link state, don't call
+ * this function.
+ */
+static void phy_prepare_link(struct phy_device *phydev,
+ void (*handler)(struct net_device *))
+{
+ phydev->adjust_link = handler;
+}
+
+/**
+ * phy_connect_direct - connect an ethernet device to a specific phy_device
+ * @dev: the network device to connect
+ * @phydev: the pointer to the phy device
+ * @handler: callback function for state change notifications
+ * @interface: PHY device's interface
+ */
+int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
+ void (*handler)(struct net_device *),
+ phy_interface_t interface)
+{
+ int rc;
+
+ if (!dev)
+ return -EINVAL;
+
+ rc = phy_attach_direct(dev, phydev, phydev->dev_flags, interface);
+ if (rc)
+ return rc;
+
+ phy_prepare_link(phydev, handler);
+ if (phy_interrupt_is_valid(phydev))
+ phy_request_interrupt(phydev);
+
+ return 0;
+}
+EXPORT_SYMBOL(phy_connect_direct);
+
+/**
+ * phy_connect - connect an ethernet device to a PHY device
+ * @dev: the network device to connect
+ * @bus_id: the id string of the PHY device to connect
+ * @handler: callback function for state change notifications
+ * @interface: PHY device's interface
+ *
+ * Description: Convenience function for connecting ethernet
+ * devices to PHY devices. The default behavior is for
+ * the PHY infrastructure to handle everything, and only notify
+ * the connected driver when the link status changes. If you
+ * don't want, or can't use the provided functionality, you may
+ * choose to call only the subset of functions which provide
+ * the desired functionality.
+ */
+struct phy_device *phy_connect(struct net_device *dev, const char *bus_id,
+ void (*handler)(struct net_device *),
+ phy_interface_t interface)
+{
+ struct phy_device *phydev;
+ struct device *d;
+ int rc;
+
+ /* Search the list of PHY devices on the mdio bus for the
+ * PHY with the requested name
+ */
+ d = bus_find_device_by_name(&mdio_bus_type, NULL, bus_id);
+ if (!d) {
+ pr_err("PHY %s not found\n", bus_id);
+ return ERR_PTR(-ENODEV);
+ }
+ phydev = to_phy_device(d);
+
+ rc = phy_connect_direct(dev, phydev, handler, interface);
+ put_device(d);
+ if (rc)
+ return ERR_PTR(rc);
+
+ return phydev;
+}
+EXPORT_SYMBOL(phy_connect);
+
+/**
+ * phy_disconnect - disable interrupts, stop state machine, and detach a PHY
+ * device
+ * @phydev: target phy_device struct
+ */
+void phy_disconnect(struct phy_device *phydev)
+{
+ if (phy_is_started(phydev))
+ phy_stop(phydev);
+
+ if (phy_interrupt_is_valid(phydev))
+ phy_free_interrupt(phydev);
+
+ phydev->adjust_link = NULL;
+
+ phy_detach(phydev);
+}
+EXPORT_SYMBOL(phy_disconnect);
+
+/**
+ * phy_poll_reset - Safely wait until a PHY reset has properly completed
+ * @phydev: The PHY device to poll
+ *
+ * Description: According to IEEE 802.3, Section 2, Subsection 22.2.4.1.1, as
+ * published in 2008, a PHY reset may take up to 0.5 seconds. The MII BMCR
+ * register must be polled until the BMCR_RESET bit clears.
+ *
+ * Furthermore, any attempts to write to PHY registers may have no effect
+ * or even generate MDIO bus errors until this is complete.
+ *
+ * Some PHYs (such as the Marvell 88E1111) don't entirely conform to the
+ * standard and do not fully reset after the BMCR_RESET bit is set, and may
+ * even *REQUIRE* a soft-reset to properly restart autonegotiation. In an
+ * effort to support such broken PHYs, this function is separate from the
+ * standard phy_init_hw() which will zero all the other bits in the BMCR
+ * and reapply all driver-specific and board-specific fixups.
+ */
+static int phy_poll_reset(struct phy_device *phydev)
+{
+ /* Poll until the reset bit clears (50ms per retry == 0.6 sec) */
+ int ret, val;
+
+ ret = phy_read_poll_timeout(phydev, MII_BMCR, val, !(val & BMCR_RESET),
+ 50000, 600000, true);
+ if (ret)
+ return ret;
+ /* Some chips (smsc911x) may still need up to another 1ms after the
+ * BMCR_RESET bit is cleared before they are usable.
+ */
+ msleep(1);
+ return 0;
+}
+
+int phy_init_hw(struct phy_device *phydev)
+{
+ int ret = 0;
+
+ /* Deassert the reset signal */
+ phy_device_reset(phydev, 0);
+
+ if (!phydev->drv)
+ return 0;
+
+ if (phydev->drv->soft_reset) {
+ ret = phydev->drv->soft_reset(phydev);
+ /* see comment in genphy_soft_reset for an explanation */
+ if (!ret)
+ phydev->suspended = 0;
+ }
+
+ if (ret < 0)
+ return ret;
+
+ ret = phy_scan_fixups(phydev);
+ if (ret < 0)
+ return ret;
+
+ if (phydev->drv->config_init) {
+ ret = phydev->drv->config_init(phydev);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (phydev->drv->config_intr) {
+ ret = phydev->drv->config_intr(phydev);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(phy_init_hw);
+
+void phy_attached_info(struct phy_device *phydev)
+{
+ phy_attached_print(phydev, NULL);
+}
+EXPORT_SYMBOL(phy_attached_info);
+
+#define ATTACHED_FMT "attached PHY driver [%s] (mii_bus:phy_addr=%s, irq=%s)"
+char *phy_attached_info_irq(struct phy_device *phydev)
+{
+ char *irq_str;
+ char irq_num[8];
+
+ switch(phydev->irq) {
+ case PHY_POLL:
+ irq_str = "POLL";
+ break;
+ case PHY_IGNORE_INTERRUPT:
+ irq_str = "IGNORE";
+ break;
+ default:
+ snprintf(irq_num, sizeof(irq_num), "%d", phydev->irq);
+ irq_str = irq_num;
+ break;
+ }
+
+ return kasprintf(GFP_KERNEL, "%s", irq_str);
+}
+EXPORT_SYMBOL(phy_attached_info_irq);
+
+void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
+{
+ const char *drv_name = phydev->drv ? phydev->drv->name : "unbound";
+ char *irq_str = phy_attached_info_irq(phydev);
+
+ if (!fmt) {
+ phydev_info(phydev, ATTACHED_FMT "\n",
+ drv_name, phydev_name(phydev),
+ irq_str);
+ } else {
+ va_list ap;
+
+ phydev_info(phydev, ATTACHED_FMT,
+ drv_name, phydev_name(phydev),
+ irq_str);
+
+ va_start(ap, fmt);
+ vprintk(fmt, ap);
+ va_end(ap);
+ }
+ kfree(irq_str);
+}
+EXPORT_SYMBOL(phy_attached_print);
+
+static void phy_sysfs_create_links(struct phy_device *phydev)
+{
+ struct net_device *dev = phydev->attached_dev;
+ int err;
+
+ if (!dev)
+ return;
+
+ err = sysfs_create_link(&phydev->mdio.dev.kobj, &dev->dev.kobj,
+ "attached_dev");
+ if (err)
+ return;
+
+ err = sysfs_create_link_nowarn(&dev->dev.kobj,
+ &phydev->mdio.dev.kobj,
+ "phydev");
+ if (err) {
+ dev_err(&dev->dev, "could not add device link to %s err %d\n",
+ kobject_name(&phydev->mdio.dev.kobj),
+ err);
+ /* non-fatal - some net drivers can use one netdevice
+ * with more then one phy
+ */
+ }
+
+ phydev->sysfs_links = true;
+}
+
+static ssize_t
+phy_standalone_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct phy_device *phydev = to_phy_device(dev);
+
+ return sprintf(buf, "%d\n", !phydev->attached_dev);
+}
+static DEVICE_ATTR_RO(phy_standalone);
+
+/**
+ * phy_sfp_attach - attach the SFP bus to the PHY upstream network device
+ * @upstream: pointer to the phy device
+ * @bus: sfp bus representing cage being attached
+ *
+ * This is used to fill in the sfp_upstream_ops .attach member.
+ */
+void phy_sfp_attach(void *upstream, struct sfp_bus *bus)
+{
+ struct phy_device *phydev = upstream;
+
+ if (phydev->attached_dev)
+ phydev->attached_dev->sfp_bus = bus;
+ phydev->sfp_bus_attached = true;
+}
+EXPORT_SYMBOL(phy_sfp_attach);
+
+/**
+ * phy_sfp_detach - detach the SFP bus from the PHY upstream network device
+ * @upstream: pointer to the phy device
+ * @bus: sfp bus representing cage being attached
+ *
+ * This is used to fill in the sfp_upstream_ops .detach member.
+ */
+void phy_sfp_detach(void *upstream, struct sfp_bus *bus)
+{
+ struct phy_device *phydev = upstream;
+
+ if (phydev->attached_dev)
+ phydev->attached_dev->sfp_bus = NULL;
+ phydev->sfp_bus_attached = false;
+}
+EXPORT_SYMBOL(phy_sfp_detach);
+
+/**
+ * phy_sfp_probe - probe for a SFP cage attached to this PHY device
+ * @phydev: Pointer to phy_device
+ * @ops: SFP's upstream operations
+ */
+int phy_sfp_probe(struct phy_device *phydev,
+ const struct sfp_upstream_ops *ops)
+{
+ struct sfp_bus *bus;
+ int ret = 0;
+
+ if (phydev->mdio.dev.fwnode) {
+ bus = sfp_bus_find_fwnode(phydev->mdio.dev.fwnode);
+ if (IS_ERR(bus))
+ return PTR_ERR(bus);
+
+ phydev->sfp_bus = bus;
+
+ ret = sfp_bus_add_upstream(bus, phydev, ops);
+ sfp_bus_put(bus);
+ }
+ return ret;
+}
+EXPORT_SYMBOL(phy_sfp_probe);
+
+/**
+ * phy_attach_direct - attach a network device to a given PHY device pointer
+ * @dev: network device to attach
+ * @phydev: Pointer to phy_device to attach
+ * @flags: PHY device's dev_flags
+ * @interface: PHY device's interface
+ *
+ * Description: Called by drivers to attach to a particular PHY
+ * device. The phy_device is found, and properly hooked up
+ * to the phy_driver. If no driver is attached, then a
+ * generic driver is used. The phy_device is given a ptr to
+ * the attaching device, and given a callback for link status
+ * change. The phy_device is returned to the attaching driver.
+ * This function takes a reference on the phy device.
+ */
+int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
+ u32 flags, phy_interface_t interface)
+{
+ struct mii_bus *bus = phydev->mdio.bus;
+ struct device *d = &phydev->mdio.dev;
+ struct module *ndev_owner = NULL;
+ bool using_genphy = false;
+ int err;
+
+ /* For Ethernet device drivers that register their own MDIO bus, we
+ * will have bus->owner match ndev_mod, so we do not want to increment
+ * our own module->refcnt here, otherwise we would not be able to
+ * unload later on.
+ */
+ if (dev)
+ ndev_owner = dev->dev.parent->driver->owner;
+ if (ndev_owner != bus->owner && !try_module_get(bus->owner)) {
+ phydev_err(phydev, "failed to get the bus module\n");
+ return -EIO;
+ }
+
+ get_device(d);
+
+ /* Assume that if there is no driver, that it doesn't
+ * exist, and we should use the genphy driver.
+ */
+ if (!d->driver) {
+ if (phydev->is_c45)
+ d->driver = &genphy_c45_driver.mdiodrv.driver;
+ else
+ d->driver = &genphy_driver.mdiodrv.driver;
+
+ using_genphy = true;
+ }
+
+ if (!try_module_get(d->driver->owner)) {
+ phydev_err(phydev, "failed to get the device driver module\n");
+ err = -EIO;
+ goto error_put_device;
+ }
+
+ if (using_genphy) {
+ err = d->driver->probe(d);
+ if (err >= 0)
+ err = device_bind_driver(d);
+
+ if (err)
+ goto error_module_put;
+ }
+
+ if (phydev->attached_dev) {
+ dev_err(&dev->dev, "PHY already attached\n");
+ err = -EBUSY;
+ goto error;
+ }
+
+ phydev->phy_link_change = phy_link_change;
+ if (dev) {
+ phydev->attached_dev = dev;
+ dev->phydev = phydev;
+
+ if (phydev->sfp_bus_attached)
+ dev->sfp_bus = phydev->sfp_bus;
+ }
+
+ /* Some Ethernet drivers try to connect to a PHY device before
+ * calling register_netdevice() -> netdev_register_kobject() and
+ * does the dev->dev.kobj initialization. Here we only check for
+ * success which indicates that the network device kobject is
+ * ready. Once we do that we still need to keep track of whether
+ * links were successfully set up or not for phy_detach() to
+ * remove them accordingly.
+ */
+ phydev->sysfs_links = false;
+
+ phy_sysfs_create_links(phydev);
+
+ if (!phydev->attached_dev) {
+ err = sysfs_create_file(&phydev->mdio.dev.kobj,
+ &dev_attr_phy_standalone.attr);
+ if (err)
+ phydev_err(phydev, "error creating 'phy_standalone' sysfs entry\n");
+ }
+
+ phydev->dev_flags |= flags;
+
+ phydev->interface = interface;
+
+ phydev->state = PHY_READY;
+
+ /* Port is set to PORT_TP by default and the actual PHY driver will set
+ * it to different value depending on the PHY configuration. If we have
+ * the generic PHY driver we can't figure it out, thus set the old
+ * legacy PORT_MII value.
+ */
+ if (using_genphy)
+ phydev->port = PORT_MII;
+
+ /* Initial carrier state is off as the phy is about to be
+ * (re)initialized.
+ */
+ if (dev)
+ netif_carrier_off(phydev->attached_dev);
+
+ /* Do initial configuration here, now that
+ * we have certain key parameters
+ * (dev_flags and interface)
+ */
+ err = phy_init_hw(phydev);
+ if (err)
+ goto error;
+
+ err = phy_disable_interrupts(phydev);
+ if (err)
+ return err;
+
+ phy_resume(phydev);
+ phy_led_triggers_register(phydev);
+
+ return err;
+
+error:
+ /* phy_detach() does all of the cleanup below */
+ phy_detach(phydev);
+ return err;
+
+error_module_put:
+ module_put(d->driver->owner);
+error_put_device:
+ put_device(d);
+ if (ndev_owner != bus->owner)
+ module_put(bus->owner);
+ return err;
+}
+EXPORT_SYMBOL(phy_attach_direct);
+
+/**
+ * phy_attach - attach a network device to a particular PHY device
+ * @dev: network device to attach
+ * @bus_id: Bus ID of PHY device to attach
+ * @interface: PHY device's interface
+ *
+ * Description: Same as phy_attach_direct() except that a PHY bus_id
+ * string is passed instead of a pointer to a struct phy_device.
+ */
+struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
+ phy_interface_t interface)
+{
+ struct bus_type *bus = &mdio_bus_type;
+ struct phy_device *phydev;
+ struct device *d;
+ int rc;
+
+ if (!dev)
+ return ERR_PTR(-EINVAL);
+
+ /* Search the list of PHY devices on the mdio bus for the
+ * PHY with the requested name
+ */
+ d = bus_find_device_by_name(bus, NULL, bus_id);
+ if (!d) {
+ pr_err("PHY %s not found\n", bus_id);
+ return ERR_PTR(-ENODEV);
+ }
+ phydev = to_phy_device(d);
+
+ rc = phy_attach_direct(dev, phydev, phydev->dev_flags, interface);
+ put_device(d);
+ if (rc)
+ return ERR_PTR(rc);
+
+ return phydev;
+}
+EXPORT_SYMBOL(phy_attach);
+
+static bool phy_driver_is_genphy_kind(struct phy_device *phydev,
+ struct device_driver *driver)
+{
+ struct device *d = &phydev->mdio.dev;
+ bool ret = false;
+
+ if (!phydev->drv)
+ return ret;
+
+ get_device(d);
+ ret = d->driver == driver;
+ put_device(d);
+
+ return ret;
+}
+
+bool phy_driver_is_genphy(struct phy_device *phydev)
+{
+ return phy_driver_is_genphy_kind(phydev,
+ &genphy_driver.mdiodrv.driver);
+}
+EXPORT_SYMBOL_GPL(phy_driver_is_genphy);
+
+bool phy_driver_is_genphy_10g(struct phy_device *phydev)
+{
+ return phy_driver_is_genphy_kind(phydev,
+ &genphy_c45_driver.mdiodrv.driver);
+}
+EXPORT_SYMBOL_GPL(phy_driver_is_genphy_10g);
+
+/**
+ * phy_package_join - join a common PHY group
+ * @phydev: target phy_device struct
+ * @addr: cookie and PHY address for global register access
+ * @priv_size: if non-zero allocate this amount of bytes for private data
+ *
+ * This joins a PHY group and provides a shared storage for all phydevs in
+ * this group. This is intended to be used for packages which contain
+ * more than one PHY, for example a quad PHY transceiver.
+ *
+ * The addr parameter serves as a cookie which has to have the same value
+ * for all members of one group and as a PHY address to access generic
+ * registers of a PHY package. Usually, one of the PHY addresses of the
+ * different PHYs in the package provides access to these global registers.
+ * The address which is given here, will be used in the phy_package_read()
+ * and phy_package_write() convenience functions. If your PHY doesn't have
+ * global registers you can just pick any of the PHY addresses.
+ *
+ * This will set the shared pointer of the phydev to the shared storage.
+ * If this is the first call for a this cookie the shared storage will be
+ * allocated. If priv_size is non-zero, the given amount of bytes are
+ * allocated for the priv member.
+ *
+ * Returns < 1 on error, 0 on success. Esp. calling phy_package_join()
+ * with the same cookie but a different priv_size is an error.
+ */
+int phy_package_join(struct phy_device *phydev, int addr, size_t priv_size)
+{
+ struct mii_bus *bus = phydev->mdio.bus;
+ struct phy_package_shared *shared;
+ int ret;
+
+ if (addr < 0 || addr >= PHY_MAX_ADDR)
+ return -EINVAL;
+
+ mutex_lock(&bus->shared_lock);
+ shared = bus->shared[addr];
+ if (!shared) {
+ ret = -ENOMEM;
+ shared = kzalloc(sizeof(*shared), GFP_KERNEL);
+ if (!shared)
+ goto err_unlock;
+ if (priv_size) {
+ shared->priv = kzalloc(priv_size, GFP_KERNEL);
+ if (!shared->priv)
+ goto err_free;
+ shared->priv_size = priv_size;
+ }
+ shared->addr = addr;
+ refcount_set(&shared->refcnt, 1);
+ bus->shared[addr] = shared;
+ } else {
+ ret = -EINVAL;
+ if (priv_size && priv_size != shared->priv_size)
+ goto err_unlock;
+ refcount_inc(&shared->refcnt);
+ }
+ mutex_unlock(&bus->shared_lock);
+
+ phydev->shared = shared;
+
+ return 0;
+
+err_free:
+ kfree(shared);
+err_unlock:
+ mutex_unlock(&bus->shared_lock);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(phy_package_join);
+
+/**
+ * phy_package_leave - leave a common PHY group
+ * @phydev: target phy_device struct
+ *
+ * This leaves a PHY group created by phy_package_join(). If this phydev
+ * was the last user of the shared data between the group, this data is
+ * freed. Resets the phydev->shared pointer to NULL.
+ */
+void phy_package_leave(struct phy_device *phydev)
+{
+ struct phy_package_shared *shared = phydev->shared;
+ struct mii_bus *bus = phydev->mdio.bus;
+
+ if (!shared)
+ return;
+
+ if (refcount_dec_and_mutex_lock(&shared->refcnt, &bus->shared_lock)) {
+ bus->shared[shared->addr] = NULL;
+ mutex_unlock(&bus->shared_lock);
+ kfree(shared->priv);
+ kfree(shared);
+ }
+
+ phydev->shared = NULL;
+}
+EXPORT_SYMBOL_GPL(phy_package_leave);
+
+static void devm_phy_package_leave(struct device *dev, void *res)
+{
+ phy_package_leave(*(struct phy_device **)res);
+}
+
+/**
+ * devm_phy_package_join - resource managed phy_package_join()
+ * @dev: device that is registering this PHY package
+ * @phydev: target phy_device struct
+ * @addr: cookie and PHY address for global register access
+ * @priv_size: if non-zero allocate this amount of bytes for private data
+ *
+ * Managed phy_package_join(). Shared storage fetched by this function,
+ * phy_package_leave() is automatically called on driver detach. See
+ * phy_package_join() for more information.
+ */
+int devm_phy_package_join(struct device *dev, struct phy_device *phydev,
+ int addr, size_t priv_size)
+{
+ struct phy_device **ptr;
+ int ret;
+
+ ptr = devres_alloc(devm_phy_package_leave, sizeof(*ptr),
+ GFP_KERNEL);
+ if (!ptr)
+ return -ENOMEM;
+
+ ret = phy_package_join(phydev, addr, priv_size);
+
+ if (!ret) {
+ *ptr = phydev;
+ devres_add(dev, ptr);
+ } else {
+ devres_free(ptr);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(devm_phy_package_join);
+
+/**
+ * phy_detach - detach a PHY device from its network device
+ * @phydev: target phy_device struct
+ *
+ * This detaches the phy device from its network device and the phy
+ * driver, and drops the reference count taken in phy_attach_direct().
+ */
+void phy_detach(struct phy_device *phydev)
+{
+ struct net_device *dev = phydev->attached_dev;
+ struct module *ndev_owner = NULL;
+ struct mii_bus *bus;
+
+ if (phydev->sysfs_links) {
+ if (dev)
+ sysfs_remove_link(&dev->dev.kobj, "phydev");
+ sysfs_remove_link(&phydev->mdio.dev.kobj, "attached_dev");
+ }
+
+ if (!phydev->attached_dev)
+ sysfs_remove_file(&phydev->mdio.dev.kobj,
+ &dev_attr_phy_standalone.attr);
+
+ phy_suspend(phydev);
+ if (dev) {
+ phydev->attached_dev->phydev = NULL;
+ phydev->attached_dev = NULL;
+ }
+ phydev->phylink = NULL;
+
+ phy_led_triggers_unregister(phydev);
+
+ if (phydev->mdio.dev.driver)
+ module_put(phydev->mdio.dev.driver->owner);
+
+ /* If the device had no specific driver before (i.e. - it
+ * was using the generic driver), we unbind the device
+ * from the generic driver so that there's a chance a
+ * real driver could be loaded
+ */
+ if (phy_driver_is_genphy(phydev) ||
+ phy_driver_is_genphy_10g(phydev))
+ device_release_driver(&phydev->mdio.dev);
+
+ /* Assert the reset signal */
+ phy_device_reset(phydev, 1);
+
+ /*
+ * The phydev might go away on the put_device() below, so avoid
+ * a use-after-free bug by reading the underlying bus first.
+ */
+ bus = phydev->mdio.bus;
+
+ put_device(&phydev->mdio.dev);
+ if (dev)
+ ndev_owner = dev->dev.parent->driver->owner;
+ if (ndev_owner != bus->owner)
+ module_put(bus->owner);
+}
+EXPORT_SYMBOL(phy_detach);
+
+int phy_suspend(struct phy_device *phydev)
+{
+ struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
+ struct net_device *netdev = phydev->attached_dev;
+ struct phy_driver *phydrv = phydev->drv;
+ int ret;
+
+ if (phydev->suspended)
+ return 0;
+
+ /* If the device has WOL enabled, we cannot suspend the PHY */
+ phy_ethtool_get_wol(phydev, &wol);
+ if (wol.wolopts || (netdev && netdev->wol_enabled))
+ return -EBUSY;
+
+ if (!phydrv || !phydrv->suspend)
+ return 0;
+
+ ret = phydrv->suspend(phydev);
+ if (!ret)
+ phydev->suspended = true;
+
+ return ret;
+}
+EXPORT_SYMBOL(phy_suspend);
+
+int __phy_resume(struct phy_device *phydev)
+{
+ struct phy_driver *phydrv = phydev->drv;
+ int ret;
+
+ WARN_ON(!mutex_is_locked(&phydev->lock));
+
+ if (!phydrv || !phydrv->resume)
+ return 0;
+
+ ret = phydrv->resume(phydev);
+ if (!ret)
+ phydev->suspended = false;
+
+ return ret;
+}
+EXPORT_SYMBOL(__phy_resume);
+
+int phy_resume(struct phy_device *phydev)
+{
+ int ret;
+
+ mutex_lock(&phydev->lock);
+ ret = __phy_resume(phydev);
+ mutex_unlock(&phydev->lock);
+
+ return ret;
+}
+EXPORT_SYMBOL(phy_resume);
+
+int phy_loopback(struct phy_device *phydev, bool enable)
+{
+ struct phy_driver *phydrv = to_phy_driver(phydev->mdio.dev.driver);
+ int ret = 0;
+
+ mutex_lock(&phydev->lock);
+
+ if (enable && phydev->loopback_enabled) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ if (!enable && !phydev->loopback_enabled) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (phydev->drv && phydrv->set_loopback)
+ ret = phydrv->set_loopback(phydev, enable);
+ else
+ ret = -EOPNOTSUPP;
+
+ if (ret)
+ goto out;
+
+ phydev->loopback_enabled = enable;
+
+out:
+ mutex_unlock(&phydev->lock);
+ return ret;
+}
+EXPORT_SYMBOL(phy_loopback);
+
+/**
+ * phy_reset_after_clk_enable - perform a PHY reset if needed
+ * @phydev: target phy_device struct
+ *
+ * Description: Some PHYs are known to need a reset after their refclk was
+ * enabled. This function evaluates the flags and perform the reset if it's
+ * needed. Returns < 0 on error, 0 if the phy wasn't reset and 1 if the phy
+ * was reset.
+ */
+int phy_reset_after_clk_enable(struct phy_device *phydev)
+{
+ if (!phydev || !phydev->drv)
+ return -ENODEV;
+
+ if (phydev->drv->flags & PHY_RST_AFTER_CLK_EN) {
+ phy_device_reset(phydev, 1);
+ phy_device_reset(phydev, 0);
+ return 1;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(phy_reset_after_clk_enable);
+
+/* Generic PHY support and helper functions */
+
+/**
+ * genphy_config_advert - sanitize and advertise auto-negotiation parameters
+ * @phydev: target phy_device struct
+ *
+ * Description: Writes MII_ADVERTISE with the appropriate values,
+ * after sanitizing the values to make sure we only advertise
+ * what is supported. Returns < 0 on error, 0 if the PHY's advertisement
+ * hasn't changed, and > 0 if it has changed.
+ */
+static int genphy_config_advert(struct phy_device *phydev)
+{
+ int err, bmsr, changed = 0;
+ u32 adv;
+
+ /* Only allow advertising what this PHY supports */
+ linkmode_and(phydev->advertising, phydev->advertising,
+ phydev->supported);
+
+ adv = linkmode_adv_to_mii_adv_t(phydev->advertising);
+
+ /* Setup standard advertisement */
+ err = phy_modify_changed(phydev, MII_ADVERTISE,
+ ADVERTISE_ALL | ADVERTISE_100BASE4 |
+ ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM,
+ adv);
+ if (err < 0)
+ return err;
+ if (err > 0)
+ changed = 1;
+
+ bmsr = phy_read(phydev, MII_BMSR);
+ if (bmsr < 0)
+ return bmsr;
+
+ /* Per 802.3-2008, Section 22.2.4.2.16 Extended status all
+ * 1000Mbits/sec capable PHYs shall have the BMSR_ESTATEN bit set to a
+ * logical 1.
+ */
+ if (!(bmsr & BMSR_ESTATEN))
+ return changed;
+
+ adv = linkmode_adv_to_mii_ctrl1000_t(phydev->advertising);
+
+ err = phy_modify_changed(phydev, MII_CTRL1000,
+ ADVERTISE_1000FULL | ADVERTISE_1000HALF,
+ adv);
+ if (err < 0)
+ return err;
+ if (err > 0)
+ changed = 1;
+
+ return changed;
+}
+
+/**
+ * genphy_c37_config_advert - sanitize and advertise auto-negotiation parameters
+ * @phydev: target phy_device struct
+ *
+ * Description: Writes MII_ADVERTISE with the appropriate values,
+ * after sanitizing the values to make sure we only advertise
+ * what is supported. Returns < 0 on error, 0 if the PHY's advertisement
+ * hasn't changed, and > 0 if it has changed. This function is intended
+ * for Clause 37 1000Base-X mode.
+ */
+static int genphy_c37_config_advert(struct phy_device *phydev)
+{
+ u16 adv = 0;
+
+ /* Only allow advertising what this PHY supports */
+ linkmode_and(phydev->advertising, phydev->advertising,
+ phydev->supported);
+
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseX_Full_BIT,
+ phydev->advertising))
+ adv |= ADVERTISE_1000XFULL;
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT,
+ phydev->advertising))
+ adv |= ADVERTISE_1000XPAUSE;
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+ phydev->advertising))
+ adv |= ADVERTISE_1000XPSE_ASYM;
+
+ return phy_modify_changed(phydev, MII_ADVERTISE,
+ ADVERTISE_1000XFULL | ADVERTISE_1000XPAUSE |
+ ADVERTISE_1000XHALF | ADVERTISE_1000XPSE_ASYM,
+ adv);
+}
+
+/**
+ * genphy_config_eee_advert - disable unwanted eee mode advertisement
+ * @phydev: target phy_device struct
+ *
+ * Description: Writes MDIO_AN_EEE_ADV after disabling unsupported energy
+ * efficent ethernet modes. Returns 0 if the PHY's advertisement hasn't
+ * changed, and 1 if it has changed.
+ */
+int genphy_config_eee_advert(struct phy_device *phydev)
+{
+ int err;
+
+ /* Nothing to disable */
+ if (!phydev->eee_broken_modes)
+ return 0;
+
+ err = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV,
+ phydev->eee_broken_modes, 0);
+ /* If the call failed, we assume that EEE is not supported */
+ return err < 0 ? 0 : err;
+}
+EXPORT_SYMBOL(genphy_config_eee_advert);
+
+/**
+ * genphy_setup_forced - configures/forces speed/duplex from @phydev
+ * @phydev: target phy_device struct
+ *
+ * Description: Configures MII_BMCR to force speed/duplex
+ * to the values in phydev. Assumes that the values are valid.
+ * Please see phy_sanitize_settings().
+ */
+int genphy_setup_forced(struct phy_device *phydev)
+{
+ u16 ctl = 0;
+
+ phydev->pause = 0;
+ phydev->asym_pause = 0;
+
+ if (SPEED_1000 == phydev->speed)
+ ctl |= BMCR_SPEED1000;
+ else if (SPEED_100 == phydev->speed)
+ ctl |= BMCR_SPEED100;
+
+ if (DUPLEX_FULL == phydev->duplex)
+ ctl |= BMCR_FULLDPLX;
+
+ return phy_modify(phydev, MII_BMCR,
+ ~(BMCR_LOOPBACK | BMCR_ISOLATE | BMCR_PDOWN), ctl);
+}
+EXPORT_SYMBOL(genphy_setup_forced);
+
+static int genphy_setup_master_slave(struct phy_device *phydev)
+{
+ u16 ctl = 0;
+
+ if (!phydev->is_gigabit_capable)
+ return 0;
+
+ switch (phydev->master_slave_set) {
+ case MASTER_SLAVE_CFG_MASTER_PREFERRED:
+ ctl |= CTL1000_PREFER_MASTER;
+ break;
+ case MASTER_SLAVE_CFG_SLAVE_PREFERRED:
+ break;
+ case MASTER_SLAVE_CFG_MASTER_FORCE:
+ ctl |= CTL1000_AS_MASTER;
+ fallthrough;
+ case MASTER_SLAVE_CFG_SLAVE_FORCE:
+ ctl |= CTL1000_ENABLE_MASTER;
+ break;
+ case MASTER_SLAVE_CFG_UNKNOWN:
+ case MASTER_SLAVE_CFG_UNSUPPORTED:
+ return 0;
+ default:
+ phydev_warn(phydev, "Unsupported Master/Slave mode\n");
+ return -EOPNOTSUPP;
+ }
+
+ return phy_modify_changed(phydev, MII_CTRL1000,
+ (CTL1000_ENABLE_MASTER | CTL1000_AS_MASTER |
+ CTL1000_PREFER_MASTER), ctl);
+}
+
+static int genphy_read_master_slave(struct phy_device *phydev)
+{
+ int cfg, state;
+ int val;
+
+ if (!phydev->is_gigabit_capable) {
+ phydev->master_slave_get = MASTER_SLAVE_CFG_UNSUPPORTED;
+ phydev->master_slave_state = MASTER_SLAVE_STATE_UNSUPPORTED;
+ return 0;
+ }
+
+ phydev->master_slave_get = MASTER_SLAVE_CFG_UNKNOWN;
+ phydev->master_slave_state = MASTER_SLAVE_STATE_UNKNOWN;
+
+ val = phy_read(phydev, MII_CTRL1000);
+ if (val < 0)
+ return val;
+
+ if (val & CTL1000_ENABLE_MASTER) {
+ if (val & CTL1000_AS_MASTER)
+ cfg = MASTER_SLAVE_CFG_MASTER_FORCE;
+ else
+ cfg = MASTER_SLAVE_CFG_SLAVE_FORCE;
+ } else {
+ if (val & CTL1000_PREFER_MASTER)
+ cfg = MASTER_SLAVE_CFG_MASTER_PREFERRED;
+ else
+ cfg = MASTER_SLAVE_CFG_SLAVE_PREFERRED;
+ }
+
+ val = phy_read(phydev, MII_STAT1000);
+ if (val < 0)
+ return val;
+
+ if (val & LPA_1000MSFAIL) {
+ state = MASTER_SLAVE_STATE_ERR;
+ } else if (phydev->link) {
+ /* this bits are valid only for active link */
+ if (val & LPA_1000MSRES)
+ state = MASTER_SLAVE_STATE_MASTER;
+ else
+ state = MASTER_SLAVE_STATE_SLAVE;
+ } else {
+ state = MASTER_SLAVE_STATE_UNKNOWN;
+ }
+
+ phydev->master_slave_get = cfg;
+ phydev->master_slave_state = state;
+
+ return 0;
+}
+
+/**
+ * genphy_restart_aneg - Enable and Restart Autonegotiation
+ * @phydev: target phy_device struct
+ */
+int genphy_restart_aneg(struct phy_device *phydev)
+{
+ /* Don't isolate the PHY if we're negotiating */
+ return phy_modify(phydev, MII_BMCR, BMCR_ISOLATE,
+ BMCR_ANENABLE | BMCR_ANRESTART);
+}
+EXPORT_SYMBOL(genphy_restart_aneg);
+
+/**
+ * genphy_check_and_restart_aneg - Enable and restart auto-negotiation
+ * @phydev: target phy_device struct
+ * @restart: whether aneg restart is requested
+ *
+ * Check, and restart auto-negotiation if needed.
+ */
+int genphy_check_and_restart_aneg(struct phy_device *phydev, bool restart)
+{
+ int ret;
+
+ if (!restart) {
+ /* Advertisement hasn't changed, but maybe aneg was never on to
+ * begin with? Or maybe phy was isolated?
+ */
+ ret = phy_read(phydev, MII_BMCR);
+ if (ret < 0)
+ return ret;
+
+ if (!(ret & BMCR_ANENABLE) || (ret & BMCR_ISOLATE))
+ restart = true;
+ }
+
+ if (restart)
+ return genphy_restart_aneg(phydev);
+
+ return 0;
+}
+EXPORT_SYMBOL(genphy_check_and_restart_aneg);
+
+/**
+ * __genphy_config_aneg - restart auto-negotiation or write BMCR
+ * @phydev: target phy_device struct
+ * @changed: whether autoneg is requested
+ *
+ * Description: If auto-negotiation is enabled, we configure the
+ * advertising, and then restart auto-negotiation. If it is not
+ * enabled, then we write the BMCR.
+ */
+int __genphy_config_aneg(struct phy_device *phydev, bool changed)
+{
+ int err;
+
+ if (genphy_config_eee_advert(phydev))
+ changed = true;
+
+ err = genphy_setup_master_slave(phydev);
+ if (err < 0)
+ return err;
+ else if (err)
+ changed = true;
+
+ if (AUTONEG_ENABLE != phydev->autoneg)
+ return genphy_setup_forced(phydev);
+
+ err = genphy_config_advert(phydev);
+ if (err < 0) /* error */
+ return err;
+ else if (err)
+ changed = true;
+
+ return genphy_check_and_restart_aneg(phydev, changed);
+}
+EXPORT_SYMBOL(__genphy_config_aneg);
+
+/**
+ * genphy_c37_config_aneg - restart auto-negotiation or write BMCR
+ * @phydev: target phy_device struct
+ *
+ * Description: If auto-negotiation is enabled, we configure the
+ * advertising, and then restart auto-negotiation. If it is not
+ * enabled, then we write the BMCR. This function is intended
+ * for use with Clause 37 1000Base-X mode.
+ */
+int genphy_c37_config_aneg(struct phy_device *phydev)
+{
+ int err, changed;
+
+ if (phydev->autoneg != AUTONEG_ENABLE)
+ return genphy_setup_forced(phydev);
+
+ err = phy_modify(phydev, MII_BMCR, BMCR_SPEED1000 | BMCR_SPEED100,
+ BMCR_SPEED1000);
+ if (err)
+ return err;
+
+ changed = genphy_c37_config_advert(phydev);
+ if (changed < 0) /* error */
+ return changed;
+
+ if (!changed) {
+ /* Advertisement hasn't changed, but maybe aneg was never on to
+ * begin with? Or maybe phy was isolated?
+ */
+ int ctl = phy_read(phydev, MII_BMCR);
+
+ if (ctl < 0)
+ return ctl;
+
+ if (!(ctl & BMCR_ANENABLE) || (ctl & BMCR_ISOLATE))
+ changed = 1; /* do restart aneg */
+ }
+
+ /* Only restart aneg if we are advertising something different
+ * than we were before.
+ */
+ if (changed > 0)
+ return genphy_restart_aneg(phydev);
+
+ return 0;
+}
+EXPORT_SYMBOL(genphy_c37_config_aneg);
+
+/**
+ * genphy_aneg_done - return auto-negotiation status
+ * @phydev: target phy_device struct
+ *
+ * Description: Reads the status register and returns 0 either if
+ * auto-negotiation is incomplete, or if there was an error.
+ * Returns BMSR_ANEGCOMPLETE if auto-negotiation is done.
+ */
+int genphy_aneg_done(struct phy_device *phydev)
+{
+ int retval = phy_read(phydev, MII_BMSR);
+
+ return (retval < 0) ? retval : (retval & BMSR_ANEGCOMPLETE);
+}
+EXPORT_SYMBOL(genphy_aneg_done);
+
+/**
+ * genphy_update_link - update link status in @phydev
+ * @phydev: target phy_device struct
+ *
+ * Description: Update the value in phydev->link to reflect the
+ * current link value. In order to do this, we need to read
+ * the status register twice, keeping the second value.
+ */
+int genphy_update_link(struct phy_device *phydev)
+{
+ int status = 0, bmcr;
+#ifdef CONFIG_MARVELL_88Q1110 //zw.wang phy driver support for Marvell_88q1110 on 20240417
+ bmcr = phy_read_cl(phydev, MII_BMCR);
+#else
+ bmcr = phy_read(phydev, MII_BMCR);
+#endif
+ if (bmcr < 0)
+ return bmcr;
+
+ /* Autoneg is being started, therefore disregard BMSR value and
+ * report link as down.
+ */
+ if (bmcr & BMCR_ANRESTART)
+ goto done;
+
+ /* The link state is latched low so that momentary link
+ * drops can be detected. Do not double-read the status
+ * in polling mode to detect such short link drops except
+ * the link was already down.
+ */
+ if (!phy_polling_mode(phydev) || !phydev->link) {
+#ifdef CONFIG_MARVELL_88Q1110 //zw.wang phy driver support for Marvell_88q1110 on 20240417
+ status = phy_read_cl(phydev, MII_BMSR);
+#else
+ status = phy_read(phydev, MII_BMSR);
+#endif
+ if (status < 0)
+ return status;
+ else if (status & BMSR_LSTATUS)
+ goto done;
+ }
+
+ /* Read link and autonegotiation status */
+#ifdef CONFIG_MARVELL_88Q1110 //zw.wang phy driver support for Marvell_88q1110 on 20240417
+ status = phy_read_cl(phydev, MII_BMSR);
+#else
+ status = phy_read(phydev, MII_BMSR);
+#endif
+ if (status < 0)
+ return status;
+done:
+ phydev->link = status & BMSR_LSTATUS ? 1 : 0;
+ phydev->autoneg_complete = status & BMSR_ANEGCOMPLETE ? 1 : 0;
+
+ /* Consider the case that autoneg was started and "aneg complete"
+ * bit has been reset, but "link up" bit not yet.
+ */
+ if (phydev->autoneg == AUTONEG_ENABLE && !phydev->autoneg_complete)
+ phydev->link = 0;
+
+ return 0;
+}
+EXPORT_SYMBOL(genphy_update_link);
+
+int genphy_read_lpa(struct phy_device *phydev)
+{
+ int lpa, lpagb;
+
+ if (phydev->autoneg == AUTONEG_ENABLE) {
+ if (!phydev->autoneg_complete) {
+ mii_stat1000_mod_linkmode_lpa_t(phydev->lp_advertising,
+ 0);
+ mii_lpa_mod_linkmode_lpa_t(phydev->lp_advertising, 0);
+ return 0;
+ }
+
+ if (phydev->is_gigabit_capable) {
+ lpagb = phy_read(phydev, MII_STAT1000);
+ if (lpagb < 0)
+ return lpagb;
+
+ if (lpagb & LPA_1000MSFAIL) {
+ int adv = phy_read(phydev, MII_CTRL1000);
+
+ if (adv < 0)
+ return adv;
+
+ if (adv & CTL1000_ENABLE_MASTER)
+ phydev_err(phydev, "Master/Slave resolution failed, maybe conflicting manual settings?\n");
+ else
+ phydev_err(phydev, "Master/Slave resolution failed\n");
+ return -ENOLINK;
+ }
+
+ mii_stat1000_mod_linkmode_lpa_t(phydev->lp_advertising,
+ lpagb);
+ }
+
+ lpa = phy_read(phydev, MII_LPA);
+ if (lpa < 0)
+ return lpa;
+
+ mii_lpa_mod_linkmode_lpa_t(phydev->lp_advertising, lpa);
+ } else {
+ linkmode_zero(phydev->lp_advertising);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(genphy_read_lpa);
+
+/**
+ * genphy_read_status_fixed - read the link parameters for !aneg mode
+ * @phydev: target phy_device struct
+ *
+ * Read the current duplex and speed state for a PHY operating with
+ * autonegotiation disabled.
+ */
+int genphy_read_status_fixed(struct phy_device *phydev)
+{
+#ifdef CONFIG_MARVELL_88Q1110 //zw.wang phy driver support for Marvell_88q1110 on 20240417
+ int bmcr = phy_read_cl(phydev, MII_BMCR);
+#else
+ int bmcr = phy_read(phydev, MII_BMCR);
+#endif
+
+ if (bmcr < 0)
+ return bmcr;
+
+ if (bmcr & BMCR_FULLDPLX)
+ phydev->duplex = DUPLEX_FULL;
+ else
+ phydev->duplex = DUPLEX_HALF;
+
+ if (bmcr & BMCR_SPEED1000)
+ phydev->speed = SPEED_1000;
+ else if (bmcr & BMCR_SPEED100)
+ phydev->speed = SPEED_100;
+ else
+ phydev->speed = SPEED_10;
+
+ return 0;
+}
+EXPORT_SYMBOL(genphy_read_status_fixed);
+
+/**
+ * genphy_read_status - check the link status and update current link state
+ * @phydev: target phy_device struct
+ *
+ * Description: Check the link, then figure out the current state
+ * by comparing what we advertise with what the link partner
+ * advertises. Start by checking the gigabit possibilities,
+ * then move on to 10/100.
+ */
+int genphy_read_status(struct phy_device *phydev)
+{
+ int err, old_link = phydev->link;
+
+ /* Update the link, but return if there was an error */
+ err = genphy_update_link(phydev);
+ if (err)
+ return err;
+
+ /* why bother the PHY if nothing can have changed */
+ if (phydev->autoneg == AUTONEG_ENABLE && old_link && phydev->link)
+ return 0;
+
+ phydev->speed = SPEED_UNKNOWN;
+ phydev->duplex = DUPLEX_UNKNOWN;
+ phydev->pause = 0;
+ phydev->asym_pause = 0;
+
+ err = genphy_read_master_slave(phydev);
+ if (err < 0)
+ return err;
+
+ err = genphy_read_lpa(phydev);
+ if (err < 0)
+ return err;
+
+ if (phydev->autoneg == AUTONEG_ENABLE && phydev->autoneg_complete) {
+ phy_resolve_aneg_linkmode(phydev);
+ } else if (phydev->autoneg == AUTONEG_DISABLE) {
+ err = genphy_read_status_fixed(phydev);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(genphy_read_status);
+
+/**
+ * genphy_c37_read_status - check the link status and update current link state
+ * @phydev: target phy_device struct
+ *
+ * Description: Check the link, then figure out the current state
+ * by comparing what we advertise with what the link partner
+ * advertises. This function is for Clause 37 1000Base-X mode.
+ */
+int genphy_c37_read_status(struct phy_device *phydev)
+{
+ int lpa, err, old_link = phydev->link;
+
+ /* Update the link, but return if there was an error */
+ err = genphy_update_link(phydev);
+ if (err)
+ return err;
+
+ /* why bother the PHY if nothing can have changed */
+ if (phydev->autoneg == AUTONEG_ENABLE && old_link && phydev->link)
+ return 0;
+
+ phydev->duplex = DUPLEX_UNKNOWN;
+ phydev->pause = 0;
+ phydev->asym_pause = 0;
+
+ if (phydev->autoneg == AUTONEG_ENABLE && phydev->autoneg_complete) {
+ lpa = phy_read(phydev, MII_LPA);
+ if (lpa < 0)
+ return lpa;
+
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
+ phydev->lp_advertising, lpa & LPA_LPACK);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseX_Full_BIT,
+ phydev->lp_advertising, lpa & LPA_1000XFULL);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT,
+ phydev->lp_advertising, lpa & LPA_1000XPAUSE);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+ phydev->lp_advertising,
+ lpa & LPA_1000XPAUSE_ASYM);
+
+ phy_resolve_aneg_linkmode(phydev);
+ } else if (phydev->autoneg == AUTONEG_DISABLE) {
+ int bmcr = phy_read(phydev, MII_BMCR);
+
+ if (bmcr < 0)
+ return bmcr;
+
+ if (bmcr & BMCR_FULLDPLX)
+ phydev->duplex = DUPLEX_FULL;
+ else
+ phydev->duplex = DUPLEX_HALF;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(genphy_c37_read_status);
+
+/**
+ * genphy_soft_reset - software reset the PHY via BMCR_RESET bit
+ * @phydev: target phy_device struct
+ *
+ * Description: Perform a software PHY reset using the standard
+ * BMCR_RESET bit and poll for the reset bit to be cleared.
+ *
+ * Returns: 0 on success, < 0 on failure
+ */
+int genphy_soft_reset(struct phy_device *phydev)
+{
+ u16 res = BMCR_RESET;
+ int ret;
+
+ if (phydev->autoneg == AUTONEG_ENABLE)
+ res |= BMCR_ANRESTART;
+
+ ret = phy_modify(phydev, MII_BMCR, BMCR_ISOLATE, res);
+ if (ret < 0)
+ return ret;
+
+ /* Clause 22 states that setting bit BMCR_RESET sets control registers
+ * to their default value. Therefore the POWER DOWN bit is supposed to
+ * be cleared after soft reset.
+ */
+ phydev->suspended = 0;
+
+ ret = phy_poll_reset(phydev);
+ if (ret)
+ return ret;
+
+ /* BMCR may be reset to defaults */
+ if (phydev->autoneg == AUTONEG_DISABLE)
+ ret = genphy_setup_forced(phydev);
+
+ return ret;
+}
+EXPORT_SYMBOL(genphy_soft_reset);
+
+/**
+ * genphy_read_abilities - read PHY abilities from Clause 22 registers
+ * @phydev: target phy_device struct
+ *
+ * Description: Reads the PHY's abilities and populates
+ * phydev->supported accordingly.
+ *
+ * Returns: 0 on success, < 0 on failure
+ */
+int genphy_read_abilities(struct phy_device *phydev)
+{
+ int val;
+
+ linkmode_set_bit_array(phy_basic_ports_array,
+ ARRAY_SIZE(phy_basic_ports_array),
+ phydev->supported);
+
+ val = phy_read(phydev, MII_BMSR);
+ if (val < 0)
+ return val;
+
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, phydev->supported,
+ val & BMSR_ANEGCAPABLE);
+
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, phydev->supported,
+ val & BMSR_100FULL);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, phydev->supported,
+ val & BMSR_100HALF);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT, phydev->supported,
+ val & BMSR_10FULL);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT, phydev->supported,
+ val & BMSR_10HALF);
+
+ if (val & BMSR_ESTATEN) {
+ val = phy_read(phydev, MII_ESTATUS);
+ if (val < 0)
+ return val;
+
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
+ phydev->supported, val & ESTATUS_1000_TFULL);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
+ phydev->supported, val & ESTATUS_1000_THALF);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseX_Full_BIT,
+ phydev->supported, val & ESTATUS_1000_XFULL);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(genphy_read_abilities);
+
+/* This is used for the phy device which doesn't support the MMD extended
+ * register access, but it does have side effect when we are trying to access
+ * the MMD register via indirect method.
+ */
+int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad, u16 regnum)
+{
+ return -EOPNOTSUPP;
+}
+EXPORT_SYMBOL(genphy_read_mmd_unsupported);
+
+int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum,
+ u16 regnum, u16 val)
+{
+ return -EOPNOTSUPP;
+}
+EXPORT_SYMBOL(genphy_write_mmd_unsupported);
+
+int genphy_suspend(struct phy_device *phydev)
+{
+ return phy_set_bits(phydev, MII_BMCR, BMCR_PDOWN);
+}
+EXPORT_SYMBOL(genphy_suspend);
+
+int genphy_resume(struct phy_device *phydev)
+{
+ return phy_clear_bits(phydev, MII_BMCR, BMCR_PDOWN);
+}
+EXPORT_SYMBOL(genphy_resume);
+
+int genphy_loopback(struct phy_device *phydev, bool enable)
+{
+ return phy_modify(phydev, MII_BMCR, BMCR_LOOPBACK,
+ enable ? BMCR_LOOPBACK : 0);
+}
+EXPORT_SYMBOL(genphy_loopback);
+
+/**
+ * phy_remove_link_mode - Remove a supported link mode
+ * @phydev: phy_device structure to remove link mode from
+ * @link_mode: Link mode to be removed
+ *
+ * Description: Some MACs don't support all link modes which the PHY
+ * does. e.g. a 1G MAC often does not support 1000Half. Add a helper
+ * to remove a link mode.
+ */
+void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode)
+{
+ linkmode_clear_bit(link_mode, phydev->supported);
+ phy_advertise_supported(phydev);
+}
+EXPORT_SYMBOL(phy_remove_link_mode);
+
+static void phy_copy_pause_bits(unsigned long *dst, unsigned long *src)
+{
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, dst,
+ linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, src));
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT, dst,
+ linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, src));
+}
+
+/**
+ * phy_advertise_supported - Advertise all supported modes
+ * @phydev: target phy_device struct
+ *
+ * Description: Called to advertise all supported modes, doesn't touch
+ * pause mode advertising.
+ */
+void phy_advertise_supported(struct phy_device *phydev)
+{
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(new);
+
+ linkmode_copy(new, phydev->supported);
+ phy_copy_pause_bits(new, phydev->advertising);
+ linkmode_copy(phydev->advertising, new);
+}
+EXPORT_SYMBOL(phy_advertise_supported);
+
+/**
+ * phy_support_sym_pause - Enable support of symmetrical pause
+ * @phydev: target phy_device struct
+ *
+ * Description: Called by the MAC to indicate is supports symmetrical
+ * Pause, but not asym pause.
+ */
+void phy_support_sym_pause(struct phy_device *phydev)
+{
+ linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, phydev->supported);
+ phy_copy_pause_bits(phydev->advertising, phydev->supported);
+}
+EXPORT_SYMBOL(phy_support_sym_pause);
+
+/**
+ * phy_support_asym_pause - Enable support of asym pause
+ * @phydev: target phy_device struct
+ *
+ * Description: Called by the MAC to indicate is supports Asym Pause.
+ */
+void phy_support_asym_pause(struct phy_device *phydev)
+{
+ phy_copy_pause_bits(phydev->advertising, phydev->supported);
+}
+EXPORT_SYMBOL(phy_support_asym_pause);
+
+/**
+ * phy_set_sym_pause - Configure symmetric Pause
+ * @phydev: target phy_device struct
+ * @rx: Receiver Pause is supported
+ * @tx: Transmit Pause is supported
+ * @autoneg: Auto neg should be used
+ *
+ * Description: Configure advertised Pause support depending on if
+ * receiver pause and pause auto neg is supported. Generally called
+ * from the set_pauseparam .ndo.
+ */
+void phy_set_sym_pause(struct phy_device *phydev, bool rx, bool tx,
+ bool autoneg)
+{
+ linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT, phydev->supported);
+
+ if (rx && tx && autoneg)
+ linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT,
+ phydev->supported);
+
+ linkmode_copy(phydev->advertising, phydev->supported);
+}
+EXPORT_SYMBOL(phy_set_sym_pause);
+
+/**
+ * phy_set_asym_pause - Configure Pause and Asym Pause
+ * @phydev: target phy_device struct
+ * @rx: Receiver Pause is supported
+ * @tx: Transmit Pause is supported
+ *
+ * Description: Configure advertised Pause support depending on if
+ * transmit and receiver pause is supported. If there has been a
+ * change in adverting, trigger a new autoneg. Generally called from
+ * the set_pauseparam .ndo.
+ */
+void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx)
+{
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(oldadv);
+
+ linkmode_copy(oldadv, phydev->advertising);
+ linkmode_set_pause(phydev->advertising, tx, rx);
+
+ if (!linkmode_equal(oldadv, phydev->advertising) &&
+ phydev->autoneg)
+ phy_start_aneg(phydev);
+}
+EXPORT_SYMBOL(phy_set_asym_pause);
+
+/**
+ * phy_validate_pause - Test if the PHY/MAC support the pause configuration
+ * @phydev: phy_device struct
+ * @pp: requested pause configuration
+ *
+ * Description: Test if the PHY/MAC combination supports the Pause
+ * configuration the user is requesting. Returns True if it is
+ * supported, false otherwise.
+ */
+bool phy_validate_pause(struct phy_device *phydev,
+ struct ethtool_pauseparam *pp)
+{
+ if (!linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT,
+ phydev->supported) && pp->rx_pause)
+ return false;
+
+ if (!linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+ phydev->supported) &&
+ pp->rx_pause != pp->tx_pause)
+ return false;
+
+ return true;
+}
+EXPORT_SYMBOL(phy_validate_pause);
+
+/**
+ * phy_get_pause - resolve negotiated pause modes
+ * @phydev: phy_device struct
+ * @tx_pause: pointer to bool to indicate whether transmit pause should be
+ * enabled.
+ * @rx_pause: pointer to bool to indicate whether receive pause should be
+ * enabled.
+ *
+ * Resolve and return the flow control modes according to the negotiation
+ * result. This includes checking that we are operating in full duplex mode.
+ * See linkmode_resolve_pause() for further details.
+ */
+void phy_get_pause(struct phy_device *phydev, bool *tx_pause, bool *rx_pause)
+{
+ if (phydev->duplex != DUPLEX_FULL) {
+ *tx_pause = false;
+ *rx_pause = false;
+ return;
+ }
+
+ return linkmode_resolve_pause(phydev->advertising,
+ phydev->lp_advertising,
+ tx_pause, rx_pause);
+}
+EXPORT_SYMBOL(phy_get_pause);
+
+#if IS_ENABLED(CONFIG_OF_MDIO)
+static int phy_get_int_delay_property(struct device *dev, const char *name)
+{
+ s32 int_delay;
+ int ret;
+
+ ret = device_property_read_u32(dev, name, &int_delay);
+ if (ret)
+ return ret;
+
+ return int_delay;
+}
+#else
+static int phy_get_int_delay_property(struct device *dev, const char *name)
+{
+ return -EINVAL;
+}
+#endif
+
+/**
+ * phy_get_delay_index - returns the index of the internal delay
+ * @phydev: phy_device struct
+ * @dev: pointer to the devices device struct
+ * @delay_values: array of delays the PHY supports
+ * @size: the size of the delay array
+ * @is_rx: boolean to indicate to get the rx internal delay
+ *
+ * Returns the index within the array of internal delay passed in.
+ * If the device property is not present then the interface type is checked
+ * if the interface defines use of internal delay then a 1 is returned otherwise
+ * a 0 is returned.
+ * The array must be in ascending order. If PHY does not have an ascending order
+ * array then size = 0 and the value of the delay property is returned.
+ * Return -EINVAL if the delay is invalid or cannot be found.
+ */
+s32 phy_get_internal_delay(struct phy_device *phydev, struct device *dev,
+ const int *delay_values, int size, bool is_rx)
+{
+ s32 delay;
+ int i;
+
+ if (is_rx) {
+ delay = phy_get_int_delay_property(dev, "rx-internal-delay-ps");
+ if (delay < 0 && size == 0) {
+ if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
+ return 1;
+ else
+ return 0;
+ }
+
+ } else {
+ delay = phy_get_int_delay_property(dev, "tx-internal-delay-ps");
+ if (delay < 0 && size == 0) {
+ if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
+ return 1;
+ else
+ return 0;
+ }
+ }
+
+ if (delay < 0)
+ return delay;
+
+ if (delay && size == 0)
+ return delay;
+
+ if (delay < delay_values[0] || delay > delay_values[size - 1]) {
+ phydev_err(phydev, "Delay %d is out of range\n", delay);
+ return -EINVAL;
+ }
+
+ if (delay == delay_values[0])
+ return 0;
+
+ for (i = 1; i < size; i++) {
+ if (delay == delay_values[i])
+ return i;
+
+ /* Find an approximate index by looking up the table */
+ if (delay > delay_values[i - 1] &&
+ delay < delay_values[i]) {
+ if (delay - delay_values[i - 1] <
+ delay_values[i] - delay)
+ return i - 1;
+ else
+ return i;
+ }
+ }
+
+ phydev_err(phydev, "error finding internal delay index for %d\n",
+ delay);
+
+ return -EINVAL;
+}
+EXPORT_SYMBOL(phy_get_internal_delay);
+
+static bool phy_drv_supports_irq(struct phy_driver *phydrv)
+{
+ return phydrv->config_intr && phydrv->ack_interrupt;
+}
+
+/**
+ * phy_probe - probe and init a PHY device
+ * @dev: device to probe and init
+ *
+ * Description: Take care of setting up the phy_device structure,
+ * set the state to READY (the driver's init function should
+ * set it to STARTING if needed).
+ */
+static int phy_probe(struct device *dev)
+{
+ struct phy_device *phydev = to_phy_device(dev);
+ struct device_driver *drv = phydev->mdio.dev.driver;
+ struct phy_driver *phydrv = to_phy_driver(drv);
+ int err = 0;
+
+ phydev->drv = phydrv;
+
+ /* Disable the interrupt if the PHY doesn't support it
+ * but the interrupt is still a valid one
+ */
+ if (!phy_drv_supports_irq(phydrv) && phy_interrupt_is_valid(phydev))
+ phydev->irq = PHY_POLL;
+
+ if (phydrv->flags & PHY_IS_INTERNAL)
+ phydev->is_internal = true;
+
+ mutex_lock(&phydev->lock);
+
+ /* Deassert the reset signal */
+ phy_device_reset(phydev, 0);
+
+ if (phydev->drv->probe) {
+ err = phydev->drv->probe(phydev);
+ if (err)
+ goto out;
+ }
+
+ /* Start out supporting everything. Eventually,
+ * a controller will attach, and may modify one
+ * or both of these values
+ */
+ if (phydrv->features) {
+ linkmode_copy(phydev->supported, phydrv->features);
+ } else if (phydrv->get_features) {
+ err = phydrv->get_features(phydev);
+ } else if (phydev->is_c45) {
+ err = genphy_c45_pma_read_abilities(phydev);
+ } else {
+ err = genphy_read_abilities(phydev);
+ }
+
+ if (err)
+ goto out;
+
+ if (!linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
+ phydev->supported))
+ phydev->autoneg = 0;
+
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
+ phydev->supported))
+ phydev->is_gigabit_capable = 1;
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
+ phydev->supported))
+ phydev->is_gigabit_capable = 1;
+
+ of_set_phy_supported(phydev);
+ phy_advertise_supported(phydev);
+
+ /* Get the EEE modes we want to prohibit. We will ask
+ * the PHY stop advertising these mode later on
+ */
+ of_set_phy_eee_broken(phydev);
+
+ /* The Pause Frame bits indicate that the PHY can support passing
+ * pause frames. During autonegotiation, the PHYs will determine if
+ * they should allow pause frames to pass. The MAC driver should then
+ * use that result to determine whether to enable flow control via
+ * pause frames.
+ *
+ * Normally, PHY drivers should not set the Pause bits, and instead
+ * allow phylib to do that. However, there may be some situations
+ * (e.g. hardware erratum) where the driver wants to set only one
+ * of these bits.
+ */
+ if (!test_bit(ETHTOOL_LINK_MODE_Pause_BIT, phydev->supported) &&
+ !test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, phydev->supported)) {
+ linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT,
+ phydev->supported);
+ linkmode_set_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+ phydev->supported);
+ }
+
+ /* Set the state to READY by default */
+ phydev->state = PHY_READY;
+
+out:
+ /* Assert the reset signal */
+ if (err)
+ phy_device_reset(phydev, 1);
+
+ mutex_unlock(&phydev->lock);
+
+ return err;
+}
+
+static int phy_remove(struct device *dev)
+{
+ struct phy_device *phydev = to_phy_device(dev);
+
+ cancel_delayed_work_sync(&phydev->state_queue);
+
+ mutex_lock(&phydev->lock);
+ phydev->state = PHY_DOWN;
+ mutex_unlock(&phydev->lock);
+
+ sfp_bus_del_upstream(phydev->sfp_bus);
+ phydev->sfp_bus = NULL;
+
+ if (phydev->drv && phydev->drv->remove)
+ phydev->drv->remove(phydev);
+
+ /* Assert the reset signal */
+ phy_device_reset(phydev, 1);
+
+ phydev->drv = NULL;
+
+ return 0;
+}
+
+/**
+ * phy_driver_register - register a phy_driver with the PHY layer
+ * @new_driver: new phy_driver to register
+ * @owner: module owning this PHY
+ */
+int phy_driver_register(struct phy_driver *new_driver, struct module *owner)
+{
+ int retval;
+
+ /* Either the features are hard coded, or dynamically
+ * determined. It cannot be both.
+ */
+ if (WARN_ON(new_driver->features && new_driver->get_features)) {
+ pr_err("%s: features and get_features must not both be set\n",
+ new_driver->name);
+ return -EINVAL;
+ }
+
+ new_driver->mdiodrv.flags |= MDIO_DEVICE_IS_PHY;
+ new_driver->mdiodrv.driver.name = new_driver->name;
+ new_driver->mdiodrv.driver.bus = &mdio_bus_type;
+ new_driver->mdiodrv.driver.probe = phy_probe;
+ new_driver->mdiodrv.driver.remove = phy_remove;
+ new_driver->mdiodrv.driver.owner = owner;
+ new_driver->mdiodrv.driver.probe_type = PROBE_FORCE_SYNCHRONOUS;
+
+ retval = driver_register(&new_driver->mdiodrv.driver);
+ if (retval) {
+ pr_err("%s: Error %d in registering driver\n",
+ new_driver->name, retval);
+
+ return retval;
+ }
+
+ pr_debug("%s: Registered new driver\n", new_driver->name);
+
+ return 0;
+}
+EXPORT_SYMBOL(phy_driver_register);
+
+int phy_drivers_register(struct phy_driver *new_driver, int n,
+ struct module *owner)
+{
+ int i, ret = 0;
+
+ for (i = 0; i < n; i++) {
+ ret = phy_driver_register(new_driver + i, owner);
+ if (ret) {
+ while (i-- > 0)
+ phy_driver_unregister(new_driver + i);
+ break;
+ }
+ }
+ return ret;
+}
+EXPORT_SYMBOL(phy_drivers_register);
+
+void phy_driver_unregister(struct phy_driver *drv)
+{
+ driver_unregister(&drv->mdiodrv.driver);
+}
+EXPORT_SYMBOL(phy_driver_unregister);
+
+void phy_drivers_unregister(struct phy_driver *drv, int n)
+{
+ int i;
+
+ for (i = 0; i < n; i++)
+ phy_driver_unregister(drv + i);
+}
+EXPORT_SYMBOL(phy_drivers_unregister);
+
+static struct phy_driver genphy_driver = {
+ .phy_id = 0xffffffff,
+ .phy_id_mask = 0xffffffff,
+ .name = "Generic PHY",
+ .get_features = genphy_read_abilities,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
+ .set_loopback = genphy_loopback,
+};
+
+static const struct ethtool_phy_ops phy_ethtool_phy_ops = {
+ .get_sset_count = phy_ethtool_get_sset_count,
+ .get_strings = phy_ethtool_get_strings,
+ .get_stats = phy_ethtool_get_stats,
+ .start_cable_test = phy_start_cable_test,
+ .start_cable_test_tdr = phy_start_cable_test_tdr,
+};
+
+static int __init phy_init(void)
+{
+ int rc;
+
+ rc = mdio_bus_init();
+ if (rc)
+ return rc;
+
+ ethtool_set_ethtool_phy_ops(&phy_ethtool_phy_ops);
+ features_init();
+
+ rc = phy_driver_register(&genphy_c45_driver, THIS_MODULE);
+ if (rc)
+ goto err_c45;
+
+ rc = phy_driver_register(&genphy_driver, THIS_MODULE);
+ if (rc) {
+ phy_driver_unregister(&genphy_c45_driver);
+err_c45:
+ mdio_bus_exit();
+ }
+
+ return rc;
+}
+
+static void __exit phy_exit(void)
+{
+ phy_driver_unregister(&genphy_c45_driver);
+ phy_driver_unregister(&genphy_driver);
+ mdio_bus_exit();
+ ethtool_set_ethtool_phy_ops(NULL);
+}
+
+subsys_initcall(phy_init);
+module_exit(phy_exit);