ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/uboot/drivers/net/mvgbe.c b/marvell/uboot/drivers/net/mvgbe.c
new file mode 100644
index 0000000..0cd06b6
--- /dev/null
+++ b/marvell/uboot/drivers/net/mvgbe.c
@@ -0,0 +1,788 @@
+/*
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * (C) Copyright 2003
+ * Ingo Assmus <ingo.assmus@keymile.com>
+ *
+ * based on - Driver for MV64360X ethernet ports
+ * Copyright (C) 2002 rabeeh@galileo.co.il
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <net.h>
+#include <malloc.h>
+#include <miiphy.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/types.h>
+#include <asm/system.h>
+#include <asm/byteorder.h>
+#include <asm/arch/cpu.h>
+
+#if defined(CONFIG_KIRKWOOD)
+#include <asm/arch/kirkwood.h>
+#elif defined(CONFIG_ORION5X)
+#include <asm/arch/orion5x.h>
+#elif defined(CONFIG_DOVE)
+#include <asm/arch/dove.h>
+#endif
+
+#include "mvgbe.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define MV_PHY_ADR_REQUEST 0xee
+#define MVGBE_SMI_REG (((struct mvgbe_registers *)MVGBE0_BASE)->smi)
+
+#if defined(CONFIG_PHYLIB) || defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
+/*
+ * smi_reg_read - miiphy_read callback function.
+ *
+ * Returns 16bit phy register value, or 0xffff on error
+ */
+static int smi_reg_read(const char *devname, u8 phy_adr, u8 reg_ofs, u16 * data)
+{
+ struct eth_device *dev = eth_get_dev_by_name(devname);
+ struct mvgbe_device *dmvgbe = to_mvgbe(dev);
+ struct mvgbe_registers *regs = dmvgbe->regs;
+ u32 smi_reg;
+ u32 timeout;
+
+ /* Phyadr read request */
+ if (phy_adr == MV_PHY_ADR_REQUEST &&
+ reg_ofs == MV_PHY_ADR_REQUEST) {
+ /* */
+ *data = (u16) (MVGBE_REG_RD(regs->phyadr) & PHYADR_MASK);
+ return 0;
+ }
+ /* check parameters */
+ if (phy_adr > PHYADR_MASK) {
+ printf("Err..(%s) Invalid PHY address %d\n",
+ __FUNCTION__, phy_adr);
+ return -EFAULT;
+ }
+ if (reg_ofs > PHYREG_MASK) {
+ printf("Err..(%s) Invalid register offset %d\n",
+ __FUNCTION__, reg_ofs);
+ return -EFAULT;
+ }
+
+ timeout = MVGBE_PHY_SMI_TIMEOUT;
+ /* wait till the SMI is not busy */
+ do {
+ /* read smi register */
+ smi_reg = MVGBE_REG_RD(MVGBE_SMI_REG);
+ if (timeout-- == 0) {
+ printf("Err..(%s) SMI busy timeout\n", __FUNCTION__);
+ return -EFAULT;
+ }
+ } while (smi_reg & MVGBE_PHY_SMI_BUSY_MASK);
+
+ /* fill the phy address and regiser offset and read opcode */
+ smi_reg = (phy_adr << MVGBE_PHY_SMI_DEV_ADDR_OFFS)
+ | (reg_ofs << MVGBE_SMI_REG_ADDR_OFFS)
+ | MVGBE_PHY_SMI_OPCODE_READ;
+
+ /* write the smi register */
+ MVGBE_REG_WR(MVGBE_SMI_REG, smi_reg);
+
+ /*wait till read value is ready */
+ timeout = MVGBE_PHY_SMI_TIMEOUT;
+
+ do {
+ /* read smi register */
+ smi_reg = MVGBE_REG_RD(MVGBE_SMI_REG);
+ if (timeout-- == 0) {
+ printf("Err..(%s) SMI read ready timeout\n",
+ __FUNCTION__);
+ return -EFAULT;
+ }
+ } while (!(smi_reg & MVGBE_PHY_SMI_READ_VALID_MASK));
+
+ /* Wait for the data to update in the SMI register */
+ for (timeout = 0; timeout < MVGBE_PHY_SMI_TIMEOUT; timeout++)
+ ;
+
+ *data = (u16) (MVGBE_REG_RD(MVGBE_SMI_REG) & MVGBE_PHY_SMI_DATA_MASK);
+
+ debug("%s:(adr %d, off %d) value= %04x\n", __FUNCTION__, phy_adr,
+ reg_ofs, *data);
+
+ return 0;
+}
+
+/*
+ * smi_reg_write - imiiphy_write callback function.
+ *
+ * Returns 0 if write succeed, -EINVAL on bad parameters
+ * -ETIME on timeout
+ */
+static int smi_reg_write(const char *devname, u8 phy_adr, u8 reg_ofs, u16 data)
+{
+ struct eth_device *dev = eth_get_dev_by_name(devname);
+ struct mvgbe_device *dmvgbe = to_mvgbe(dev);
+ struct mvgbe_registers *regs = dmvgbe->regs;
+ u32 smi_reg;
+ u32 timeout;
+
+ /* Phyadr write request*/
+ if (phy_adr == MV_PHY_ADR_REQUEST &&
+ reg_ofs == MV_PHY_ADR_REQUEST) {
+ MVGBE_REG_WR(regs->phyadr, data);
+ return 0;
+ }
+
+ /* check parameters */
+ if (phy_adr > PHYADR_MASK) {
+ printf("Err..(%s) Invalid phy address\n", __FUNCTION__);
+ return -EINVAL;
+ }
+ if (reg_ofs > PHYREG_MASK) {
+ printf("Err..(%s) Invalid register offset\n", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ /* wait till the SMI is not busy */
+ timeout = MVGBE_PHY_SMI_TIMEOUT;
+ do {
+ /* read smi register */
+ smi_reg = MVGBE_REG_RD(MVGBE_SMI_REG);
+ if (timeout-- == 0) {
+ printf("Err..(%s) SMI busy timeout\n", __FUNCTION__);
+ return -ETIME;
+ }
+ } while (smi_reg & MVGBE_PHY_SMI_BUSY_MASK);
+
+ /* fill the phy addr and reg offset and write opcode and data */
+ smi_reg = (data << MVGBE_PHY_SMI_DATA_OFFS);
+ smi_reg |= (phy_adr << MVGBE_PHY_SMI_DEV_ADDR_OFFS)
+ | (reg_ofs << MVGBE_SMI_REG_ADDR_OFFS);
+ smi_reg &= ~MVGBE_PHY_SMI_OPCODE_READ;
+
+ /* write the smi register */
+ MVGBE_REG_WR(MVGBE_SMI_REG, smi_reg);
+
+ return 0;
+}
+#endif
+
+#if defined(CONFIG_PHYLIB)
+int mvgbe_phy_read(struct mii_dev *bus, int phy_addr, int dev_addr,
+ int reg_addr)
+{
+ u16 data;
+ int ret;
+ ret = smi_reg_read(bus->name, phy_addr, reg_addr, &data);
+ if (ret)
+ return ret;
+ return data;
+}
+
+int mvgbe_phy_write(struct mii_dev *bus, int phy_addr, int dev_addr,
+ int reg_addr, u16 data)
+{
+ return smi_reg_write(bus->name, phy_addr, reg_addr, data);
+}
+#endif
+
+/* Stop and checks all queues */
+static void stop_queue(u32 * qreg)
+{
+ u32 reg_data;
+
+ reg_data = readl(qreg);
+
+ if (reg_data & 0xFF) {
+ /* Issue stop command for active channels only */
+ writel((reg_data << 8), qreg);
+
+ /* Wait for all queue activity to terminate. */
+ do {
+ /*
+ * Check port cause register that all queues
+ * are stopped
+ */
+ reg_data = readl(qreg);
+ }
+ while (reg_data & 0xFF);
+ }
+}
+
+/*
+ * set_access_control - Config address decode parameters for Ethernet unit
+ *
+ * This function configures the address decode parameters for the Gigabit
+ * Ethernet Controller according the given parameters struct.
+ *
+ * @regs Register struct pointer.
+ * @param Address decode parameter struct.
+ */
+static void set_access_control(struct mvgbe_registers *regs,
+ struct mvgbe_winparam *param)
+{
+ u32 access_prot_reg;
+
+ /* Set access control register */
+ access_prot_reg = MVGBE_REG_RD(regs->epap);
+ /* clear window permission */
+ access_prot_reg &= (~(3 << (param->win * 2)));
+ access_prot_reg |= (param->access_ctrl << (param->win * 2));
+ MVGBE_REG_WR(regs->epap, access_prot_reg);
+
+ /* Set window Size reg (SR) */
+ MVGBE_REG_WR(regs->barsz[param->win].size,
+ (((param->size / 0x10000) - 1) << 16));
+
+ /* Set window Base address reg (BA) */
+ MVGBE_REG_WR(regs->barsz[param->win].bar,
+ (param->target | param->attrib | param->base_addr));
+ /* High address remap reg (HARR) */
+ if (param->win < 4)
+ MVGBE_REG_WR(regs->ha_remap[param->win], param->high_addr);
+
+ /* Base address enable reg (BARER) */
+ if (param->enable == 1)
+ MVGBE_REG_BITS_RESET(regs->bare, (1 << param->win));
+ else
+ MVGBE_REG_BITS_SET(regs->bare, (1 << param->win));
+}
+
+static void set_dram_access(struct mvgbe_registers *regs)
+{
+ struct mvgbe_winparam win_param;
+ int i;
+
+ for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+ /* Set access parameters for DRAM bank i */
+ win_param.win = i; /* Use Ethernet window i */
+ /* Window target - DDR */
+ win_param.target = MVGBE_TARGET_DRAM;
+ /* Enable full access */
+ win_param.access_ctrl = EWIN_ACCESS_FULL;
+ win_param.high_addr = 0;
+ /* Get bank base and size */
+ win_param.base_addr = gd->bd->bi_dram[i].start;
+ win_param.size = gd->bd->bi_dram[i].size;
+ if (win_param.size == 0)
+ win_param.enable = 0;
+ else
+ win_param.enable = 1; /* Enable the access */
+
+ /* Enable DRAM bank */
+ switch (i) {
+ case 0:
+ win_param.attrib = EBAR_DRAM_CS0;
+ break;
+ case 1:
+ win_param.attrib = EBAR_DRAM_CS1;
+ break;
+ case 2:
+ win_param.attrib = EBAR_DRAM_CS2;
+ break;
+ case 3:
+ win_param.attrib = EBAR_DRAM_CS3;
+ break;
+ default:
+ /* invalid bank, disable access */
+ win_param.enable = 0;
+ win_param.attrib = 0;
+ break;
+ }
+ /* Set the access control for address window(EPAPR) RD/WR */
+ set_access_control(regs, &win_param);
+ }
+}
+
+/*
+ * port_init_mac_tables - Clear all entrance in the UC, SMC and OMC tables
+ *
+ * Go through all the DA filter tables (Unicast, Special Multicast & Other
+ * Multicast) and set each entry to 0.
+ */
+static void port_init_mac_tables(struct mvgbe_registers *regs)
+{
+ int table_index;
+
+ /* Clear DA filter unicast table (Ex_dFUT) */
+ for (table_index = 0; table_index < 4; ++table_index)
+ MVGBE_REG_WR(regs->dfut[table_index], 0);
+
+ for (table_index = 0; table_index < 64; ++table_index) {
+ /* Clear DA filter special multicast table (Ex_dFSMT) */
+ MVGBE_REG_WR(regs->dfsmt[table_index], 0);
+ /* Clear DA filter other multicast table (Ex_dFOMT) */
+ MVGBE_REG_WR(regs->dfomt[table_index], 0);
+ }
+}
+
+/*
+ * port_uc_addr - This function Set the port unicast address table
+ *
+ * This function locates the proper entry in the Unicast table for the
+ * specified MAC nibble and sets its properties according to function
+ * parameters.
+ * This function add/removes MAC addresses from the port unicast address
+ * table.
+ *
+ * @uc_nibble Unicast MAC Address last nibble.
+ * @option 0 = Add, 1 = remove address.
+ *
+ * RETURN: 1 if output succeeded. 0 if option parameter is invalid.
+ */
+static int port_uc_addr(struct mvgbe_registers *regs, u8 uc_nibble,
+ int option)
+{
+ u32 unicast_reg;
+ u32 tbl_offset;
+ u32 reg_offset;
+
+ /* Locate the Unicast table entry */
+ uc_nibble = (0xf & uc_nibble);
+ /* Register offset from unicast table base */
+ tbl_offset = (uc_nibble / 4);
+ /* Entry offset within the above register */
+ reg_offset = uc_nibble % 4;
+
+ switch (option) {
+ case REJECT_MAC_ADDR:
+ /*
+ * Clear accepts frame bit at specified unicast
+ * DA table entry
+ */
+ unicast_reg = MVGBE_REG_RD(regs->dfut[tbl_offset]);
+ unicast_reg &= (0xFF << (8 * reg_offset));
+ MVGBE_REG_WR(regs->dfut[tbl_offset], unicast_reg);
+ break;
+ case ACCEPT_MAC_ADDR:
+ /* Set accepts frame bit at unicast DA filter table entry */
+ unicast_reg = MVGBE_REG_RD(regs->dfut[tbl_offset]);
+ unicast_reg &= (0xFF << (8 * reg_offset));
+ unicast_reg |= ((0x01 | (RXUQ << 1)) << (8 * reg_offset));
+ MVGBE_REG_WR(regs->dfut[tbl_offset], unicast_reg);
+ break;
+ default:
+ return 0;
+ }
+ return 1;
+}
+
+/*
+ * port_uc_addr_set - This function Set the port Unicast address.
+ */
+static void port_uc_addr_set(struct mvgbe_registers *regs, u8 * p_addr)
+{
+ u32 mac_h;
+ u32 mac_l;
+
+ mac_l = (p_addr[4] << 8) | (p_addr[5]);
+ mac_h = (p_addr[0] << 24) | (p_addr[1] << 16) | (p_addr[2] << 8) |
+ (p_addr[3] << 0);
+
+ MVGBE_REG_WR(regs->macal, mac_l);
+ MVGBE_REG_WR(regs->macah, mac_h);
+
+ /* Accept frames of this address */
+ port_uc_addr(regs, p_addr[5], ACCEPT_MAC_ADDR);
+}
+
+/*
+ * mvgbe_init_rx_desc_ring - Curve a Rx chain desc list and buffer in memory.
+ */
+static void mvgbe_init_rx_desc_ring(struct mvgbe_device *dmvgbe)
+{
+ struct mvgbe_rxdesc *p_rx_desc;
+ int i;
+
+ /* initialize the Rx descriptors ring */
+ p_rx_desc = dmvgbe->p_rxdesc;
+ for (i = 0; i < RINGSZ; i++) {
+ p_rx_desc->cmd_sts =
+ MVGBE_BUFFER_OWNED_BY_DMA | MVGBE_RX_EN_INTERRUPT;
+ p_rx_desc->buf_size = PKTSIZE_ALIGN;
+ p_rx_desc->byte_cnt = 0;
+ p_rx_desc->buf_ptr = dmvgbe->p_rxbuf + i * PKTSIZE_ALIGN;
+ if (i == (RINGSZ - 1))
+ p_rx_desc->nxtdesc_p = dmvgbe->p_rxdesc;
+ else {
+ p_rx_desc->nxtdesc_p = (struct mvgbe_rxdesc *)
+ ((u32) p_rx_desc + MV_RXQ_DESC_ALIGNED_SIZE);
+ p_rx_desc = p_rx_desc->nxtdesc_p;
+ }
+ }
+ dmvgbe->p_rxdesc_curr = dmvgbe->p_rxdesc;
+}
+
+static int mvgbe_init(struct eth_device *dev)
+{
+ struct mvgbe_device *dmvgbe = to_mvgbe(dev);
+ struct mvgbe_registers *regs = dmvgbe->regs;
+#if (defined(CONFIG_MII) || defined(CONFIG_CMD_MII)) && \
+ !defined(CONFIG_PHYLIB) && \
+ defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN)
+ int i;
+#endif
+ /* setup RX rings */
+ mvgbe_init_rx_desc_ring(dmvgbe);
+
+ /* Clear the ethernet port interrupts */
+ MVGBE_REG_WR(regs->ic, 0);
+ MVGBE_REG_WR(regs->ice, 0);
+ /* Unmask RX buffer and TX end interrupt */
+ MVGBE_REG_WR(regs->pim, INT_CAUSE_UNMASK_ALL);
+ /* Unmask phy and link status changes interrupts */
+ MVGBE_REG_WR(regs->peim, INT_CAUSE_UNMASK_ALL_EXT);
+
+ set_dram_access(regs);
+ port_init_mac_tables(regs);
+ port_uc_addr_set(regs, dmvgbe->dev.enetaddr);
+
+ /* Assign port configuration and command. */
+ MVGBE_REG_WR(regs->pxc, PRT_CFG_VAL);
+ MVGBE_REG_WR(regs->pxcx, PORT_CFG_EXTEND_VALUE);
+ MVGBE_REG_WR(regs->psc0, PORT_SERIAL_CONTROL_VALUE);
+
+ /* Assign port SDMA configuration */
+ MVGBE_REG_WR(regs->sdc, PORT_SDMA_CFG_VALUE);
+ MVGBE_REG_WR(regs->tqx[0].qxttbc, QTKNBKT_DEF_VAL);
+ MVGBE_REG_WR(regs->tqx[0].tqxtbc,
+ (QMTBS_DEF_VAL << 16) | QTKNRT_DEF_VAL);
+ /* Turn off the port/RXUQ bandwidth limitation */
+ MVGBE_REG_WR(regs->pmtu, 0);
+
+ /* Set maximum receive buffer to 9700 bytes */
+ MVGBE_REG_WR(regs->psc0, MVGBE_MAX_RX_PACKET_9700BYTE
+ | (MVGBE_REG_RD(regs->psc0) & MRU_MASK));
+
+ /* Enable port initially */
+ MVGBE_REG_BITS_SET(regs->psc0, MVGBE_SERIAL_PORT_EN);
+
+ /*
+ * Set ethernet MTU for leaky bucket mechanism to 0 - this will
+ * disable the leaky bucket mechanism .
+ */
+ MVGBE_REG_WR(regs->pmtu, 0);
+
+ /* Assignment of Rx CRDB of given RXUQ */
+ MVGBE_REG_WR(regs->rxcdp[RXUQ], (u32) dmvgbe->p_rxdesc_curr);
+ /* ensure previous write is done before enabling Rx DMA */
+ isb();
+ /* Enable port Rx. */
+ MVGBE_REG_WR(regs->rqc, (1 << RXUQ));
+
+#if (defined(CONFIG_MII) || defined(CONFIG_CMD_MII)) && \
+ !defined(CONFIG_PHYLIB) && \
+ defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN)
+ /* Wait up to 5s for the link status */
+ for (i = 0; i < 5; i++) {
+ u16 phyadr;
+
+ miiphy_read(dev->name, MV_PHY_ADR_REQUEST,
+ MV_PHY_ADR_REQUEST, &phyadr);
+ /* Return if we get link up */
+ if (miiphy_link(dev->name, phyadr))
+ return 0;
+ udelay(1000000);
+ }
+
+ printf("No link on %s\n", dev->name);
+ return -1;
+#endif
+ return 0;
+}
+
+static int mvgbe_halt(struct eth_device *dev)
+{
+ struct mvgbe_device *dmvgbe = to_mvgbe(dev);
+ struct mvgbe_registers *regs = dmvgbe->regs;
+
+ /* Disable all gigE address decoder */
+ MVGBE_REG_WR(regs->bare, 0x3f);
+
+ stop_queue(®s->tqc);
+ stop_queue(®s->rqc);
+
+ /* Disable port */
+ MVGBE_REG_BITS_RESET(regs->psc0, MVGBE_SERIAL_PORT_EN);
+ /* Set port is not reset */
+ MVGBE_REG_BITS_RESET(regs->psc1, 1 << 4);
+#ifdef CONFIG_SYS_MII_MODE
+ /* Set MMI interface up */
+ MVGBE_REG_BITS_RESET(regs->psc1, 1 << 3);
+#endif
+ /* Disable & mask ethernet port interrupts */
+ MVGBE_REG_WR(regs->ic, 0);
+ MVGBE_REG_WR(regs->ice, 0);
+ MVGBE_REG_WR(regs->pim, 0);
+ MVGBE_REG_WR(regs->peim, 0);
+
+ return 0;
+}
+
+static int mvgbe_write_hwaddr(struct eth_device *dev)
+{
+ struct mvgbe_device *dmvgbe = to_mvgbe(dev);
+ struct mvgbe_registers *regs = dmvgbe->regs;
+
+ /* Programs net device MAC address after initialization */
+ port_uc_addr_set(regs, dmvgbe->dev.enetaddr);
+ return 0;
+}
+
+static int mvgbe_send(struct eth_device *dev, void *dataptr, int datasize)
+{
+ struct mvgbe_device *dmvgbe = to_mvgbe(dev);
+ struct mvgbe_registers *regs = dmvgbe->regs;
+ struct mvgbe_txdesc *p_txdesc = dmvgbe->p_txdesc;
+ void *p = (void *)dataptr;
+ u32 cmd_sts;
+ u32 txuq0_reg_addr;
+
+ /* Copy buffer if it's misaligned */
+ if ((u32) dataptr & 0x07) {
+ if (datasize > PKTSIZE_ALIGN) {
+ printf("Non-aligned data too large (%d)\n",
+ datasize);
+ return -1;
+ }
+
+ memcpy(dmvgbe->p_aligned_txbuf, p, datasize);
+ p = dmvgbe->p_aligned_txbuf;
+ }
+
+ p_txdesc->cmd_sts = MVGBE_ZERO_PADDING | MVGBE_GEN_CRC;
+ p_txdesc->cmd_sts |= MVGBE_TX_FIRST_DESC | MVGBE_TX_LAST_DESC;
+ p_txdesc->cmd_sts |= MVGBE_BUFFER_OWNED_BY_DMA;
+ p_txdesc->cmd_sts |= MVGBE_TX_EN_INTERRUPT;
+ p_txdesc->buf_ptr = (u8 *) p;
+ p_txdesc->byte_cnt = datasize;
+
+ /* Set this tc desc as zeroth TXUQ */
+ txuq0_reg_addr = (u32)®s->tcqdp[TXUQ];
+ writel((u32) p_txdesc, txuq0_reg_addr);
+
+ /* ensure tx desc writes above are performed before we start Tx DMA */
+ isb();
+
+ /* Apply send command using zeroth TXUQ */
+ MVGBE_REG_WR(regs->tqc, (1 << TXUQ));
+
+ /*
+ * wait for packet xmit completion
+ */
+ cmd_sts = readl(&p_txdesc->cmd_sts);
+ while (cmd_sts & MVGBE_BUFFER_OWNED_BY_DMA) {
+ /* return fail if error is detected */
+ if ((cmd_sts & (MVGBE_ERROR_SUMMARY | MVGBE_TX_LAST_FRAME)) ==
+ (MVGBE_ERROR_SUMMARY | MVGBE_TX_LAST_FRAME) &&
+ cmd_sts & (MVGBE_UR_ERROR | MVGBE_RL_ERROR)) {
+ printf("Err..(%s) in xmit packet\n", __FUNCTION__);
+ return -1;
+ }
+ cmd_sts = readl(&p_txdesc->cmd_sts);
+ };
+ return 0;
+}
+
+static int mvgbe_recv(struct eth_device *dev)
+{
+ struct mvgbe_device *dmvgbe = to_mvgbe(dev);
+ struct mvgbe_rxdesc *p_rxdesc_curr = dmvgbe->p_rxdesc_curr;
+ u32 cmd_sts;
+ u32 timeout = 0;
+ u32 rxdesc_curr_addr;
+
+ /* wait untill rx packet available or timeout */
+ do {
+ if (timeout < MVGBE_PHY_SMI_TIMEOUT)
+ timeout++;
+ else {
+ debug("%s time out...\n", __FUNCTION__);
+ return -1;
+ }
+ } while (readl(&p_rxdesc_curr->cmd_sts) & MVGBE_BUFFER_OWNED_BY_DMA);
+
+ if (p_rxdesc_curr->byte_cnt != 0) {
+ debug("%s: Received %d byte Packet @ 0x%x (cmd_sts= %08x)\n",
+ __FUNCTION__, (u32) p_rxdesc_curr->byte_cnt,
+ (u32) p_rxdesc_curr->buf_ptr,
+ (u32) p_rxdesc_curr->cmd_sts);
+ }
+
+ /*
+ * In case received a packet without first/last bits on
+ * OR the error summary bit is on,
+ * the packets needs to be dropeed.
+ */
+ cmd_sts = readl(&p_rxdesc_curr->cmd_sts);
+
+ if ((cmd_sts &
+ (MVGBE_RX_FIRST_DESC | MVGBE_RX_LAST_DESC))
+ != (MVGBE_RX_FIRST_DESC | MVGBE_RX_LAST_DESC)) {
+
+ printf("Err..(%s) Dropping packet spread on"
+ " multiple descriptors\n", __FUNCTION__);
+
+ } else if (cmd_sts & MVGBE_ERROR_SUMMARY) {
+
+ printf("Err..(%s) Dropping packet with errors\n",
+ __FUNCTION__);
+
+ } else {
+ /* !!! call higher layer processing */
+ debug("%s: Sending Received packet to"
+ " upper layer (NetReceive)\n", __FUNCTION__);
+
+ /* let the upper layer handle the packet */
+ NetReceive((p_rxdesc_curr->buf_ptr + RX_BUF_OFFSET),
+ (int)(p_rxdesc_curr->byte_cnt - RX_BUF_OFFSET));
+ }
+ /*
+ * free these descriptors and point next in the ring
+ */
+ p_rxdesc_curr->cmd_sts =
+ MVGBE_BUFFER_OWNED_BY_DMA | MVGBE_RX_EN_INTERRUPT;
+ p_rxdesc_curr->buf_size = PKTSIZE_ALIGN;
+ p_rxdesc_curr->byte_cnt = 0;
+
+ rxdesc_curr_addr = (u32)&dmvgbe->p_rxdesc_curr;
+ writel((unsigned)p_rxdesc_curr->nxtdesc_p, rxdesc_curr_addr);
+
+ return 0;
+}
+
+#if defined(CONFIG_PHYLIB)
+int mvgbe_phylib_init(struct eth_device *dev, int phyid)
+{
+ struct mii_dev *bus;
+ struct phy_device *phydev;
+ int ret;
+
+ bus = mdio_alloc();
+ if (!bus) {
+ printf("mdio_alloc failed\n");
+ return -ENOMEM;
+ }
+ bus->read = mvgbe_phy_read;
+ bus->write = mvgbe_phy_write;
+ sprintf(bus->name, dev->name);
+
+ ret = mdio_register(bus);
+ if (ret) {
+ printf("mdio_register failed\n");
+ free(bus);
+ return -ENOMEM;
+ }
+
+ /* Set phy address of the port */
+ mvgbe_phy_write(bus, MV_PHY_ADR_REQUEST, 0, MV_PHY_ADR_REQUEST, phyid);
+
+ phydev = phy_connect(bus, phyid, dev, PHY_INTERFACE_MODE_RGMII);
+ if (!phydev) {
+ printf("phy_connect failed\n");
+ return -ENODEV;
+ }
+
+ phy_config(phydev);
+ phy_startup(phydev);
+
+ return 0;
+}
+#endif
+
+int mvgbe_initialize(bd_t *bis)
+{
+ struct mvgbe_device *dmvgbe;
+ struct eth_device *dev;
+ int devnum;
+ u8 used_ports[MAX_MVGBE_DEVS] = CONFIG_MVGBE_PORTS;
+
+ for (devnum = 0; devnum < MAX_MVGBE_DEVS; devnum++) {
+ /*skip if port is configured not to use */
+ if (used_ports[devnum] == 0)
+ continue;
+
+ dmvgbe = malloc(sizeof(struct mvgbe_device));
+
+ if (!dmvgbe)
+ goto error1;
+
+ memset(dmvgbe, 0, sizeof(struct mvgbe_device));
+
+ dmvgbe->p_rxdesc =
+ (struct mvgbe_rxdesc *)memalign(PKTALIGN,
+ MV_RXQ_DESC_ALIGNED_SIZE*RINGSZ + 1);
+
+ if (!dmvgbe->p_rxdesc)
+ goto error2;
+
+ dmvgbe->p_rxbuf = (u8 *) memalign(PKTALIGN,
+ RINGSZ*PKTSIZE_ALIGN + 1);
+
+ if (!dmvgbe->p_rxbuf)
+ goto error3;
+
+ dmvgbe->p_aligned_txbuf = memalign(8, PKTSIZE_ALIGN);
+
+ if (!dmvgbe->p_aligned_txbuf)
+ goto error4;
+
+ dmvgbe->p_txdesc = (struct mvgbe_txdesc *) memalign(
+ PKTALIGN, sizeof(struct mvgbe_txdesc) + 1);
+
+ if (!dmvgbe->p_txdesc) {
+ free(dmvgbe->p_aligned_txbuf);
+error4:
+ free(dmvgbe->p_rxbuf);
+error3:
+ free(dmvgbe->p_rxdesc);
+error2:
+ free(dmvgbe);
+error1:
+ printf("Err.. %s Failed to allocate memory\n",
+ __FUNCTION__);
+ return -1;
+ }
+
+ dev = &dmvgbe->dev;
+
+ /* must be less than sizeof(dev->name) */
+ sprintf(dev->name, "egiga%d", devnum);
+
+ switch (devnum) {
+ case 0:
+ dmvgbe->regs = (void *)MVGBE0_BASE;
+ break;
+#if defined(MVGBE1_BASE)
+ case 1:
+ dmvgbe->regs = (void *)MVGBE1_BASE;
+ break;
+#endif
+ default: /* this should never happen */
+ printf("Err..(%s) Invalid device number %d\n",
+ __FUNCTION__, devnum);
+ return -1;
+ }
+
+ dev->init = (void *)mvgbe_init;
+ dev->halt = (void *)mvgbe_halt;
+ dev->send = (void *)mvgbe_send;
+ dev->recv = (void *)mvgbe_recv;
+ dev->write_hwaddr = (void *)mvgbe_write_hwaddr;
+
+ eth_register(dev);
+
+#if defined(CONFIG_PHYLIB)
+ mvgbe_phylib_init(dev, PHY_BASE_ADR + devnum);
+#elif defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
+ miiphy_register(dev->name, smi_reg_read, smi_reg_write);
+ /* Set phy address of the port */
+ miiphy_write(dev->name, MV_PHY_ADR_REQUEST,
+ MV_PHY_ADR_REQUEST, PHY_BASE_ADR + devnum);
+#endif
+ }
+ return 0;
+}