[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/pcmcia/pxa2xx_mainstone.c b/src/kernel/linux/v4.14/drivers/pcmcia/pxa2xx_mainstone.c
new file mode 100644
index 0000000..7e32e25
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/pcmcia/pxa2xx_mainstone.c
@@ -0,0 +1,170 @@
+/*
+ * linux/drivers/pcmcia/pxa2xx_mainstone.c
+ *
+ * Mainstone PCMCIA specific routines.
+ *
+ * Created: May 12, 2004
+ * Author: Nicolas Pitre
+ * Copyright: MontaVista Software Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+
+#include <pcmcia/ss.h>
+
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+
+#include <mach/pxa2xx-regs.h>
+#include <mach/mainstone.h>
+
+#include "soc_common.h"
+
+
+static int mst_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+ /*
+ * Setup default state of GPIO outputs
+ * before we enable them as outputs.
+ */
+ if (skt->nr == 0) {
+ skt->socket.pci_irq = MAINSTONE_S0_IRQ;
+ skt->stat[SOC_STAT_CD].irq = MAINSTONE_S0_CD_IRQ;
+ skt->stat[SOC_STAT_CD].name = "PCMCIA0 CD";
+ skt->stat[SOC_STAT_BVD1].irq = MAINSTONE_S0_STSCHG_IRQ;
+ skt->stat[SOC_STAT_BVD1].name = "PCMCIA0 STSCHG";
+ } else {
+ skt->socket.pci_irq = MAINSTONE_S1_IRQ;
+ skt->stat[SOC_STAT_CD].irq = MAINSTONE_S1_CD_IRQ;
+ skt->stat[SOC_STAT_CD].name = "PCMCIA1 CD";
+ skt->stat[SOC_STAT_BVD1].irq = MAINSTONE_S1_STSCHG_IRQ;
+ skt->stat[SOC_STAT_BVD1].name = "PCMCIA1 STSCHG";
+ }
+ return 0;
+}
+
+static unsigned long mst_pcmcia_status[2];
+
+static void mst_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+ struct pcmcia_state *state)
+{
+ unsigned long status, flip;
+
+ status = (skt->nr == 0) ? MST_PCMCIA0 : MST_PCMCIA1;
+ flip = (status ^ mst_pcmcia_status[skt->nr]) & MST_PCMCIA_nSTSCHG_BVD1;
+
+ /*
+ * Workaround for STSCHG which can't be deasserted:
+ * We therefore disable/enable corresponding IRQs
+ * as needed to avoid IRQ locks.
+ */
+ if (flip) {
+ mst_pcmcia_status[skt->nr] = status;
+ if (status & MST_PCMCIA_nSTSCHG_BVD1)
+ enable_irq( (skt->nr == 0) ? MAINSTONE_S0_STSCHG_IRQ
+ : MAINSTONE_S1_STSCHG_IRQ );
+ else
+ disable_irq( (skt->nr == 0) ? MAINSTONE_S0_STSCHG_IRQ
+ : MAINSTONE_S1_STSCHG_IRQ );
+ }
+
+ state->detect = (status & MST_PCMCIA_nCD) ? 0 : 1;
+ state->ready = (status & MST_PCMCIA_nIRQ) ? 1 : 0;
+ state->bvd1 = (status & MST_PCMCIA_nSTSCHG_BVD1) ? 1 : 0;
+ state->bvd2 = (status & MST_PCMCIA_nSPKR_BVD2) ? 1 : 0;
+ state->vs_3v = (status & MST_PCMCIA_nVS1) ? 0 : 1;
+ state->vs_Xv = (status & MST_PCMCIA_nVS2) ? 0 : 1;
+}
+
+static int mst_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+ const socket_state_t *state)
+{
+ unsigned long power = 0;
+ int ret = 0;
+
+ switch (state->Vcc) {
+ case 0: power |= MST_PCMCIA_PWR_VCC_0; break;
+ case 33: power |= MST_PCMCIA_PWR_VCC_33; break;
+ case 50: power |= MST_PCMCIA_PWR_VCC_50; break;
+ default:
+ printk(KERN_ERR "%s(): bad Vcc %u\n",
+ __func__, state->Vcc);
+ ret = -1;
+ }
+
+ switch (state->Vpp) {
+ case 0: power |= MST_PCMCIA_PWR_VPP_0; break;
+ case 120: power |= MST_PCMCIA_PWR_VPP_120; break;
+ default:
+ if(state->Vpp == state->Vcc) {
+ power |= MST_PCMCIA_PWR_VPP_VCC;
+ } else {
+ printk(KERN_ERR "%s(): bad Vpp %u\n",
+ __func__, state->Vpp);
+ ret = -1;
+ }
+ }
+
+ if (state->flags & SS_RESET)
+ power |= MST_PCMCIA_RESET;
+
+ switch (skt->nr) {
+ case 0: MST_PCMCIA0 = power; break;
+ case 1: MST_PCMCIA1 = power; break;
+ default: ret = -1;
+ }
+
+ return ret;
+}
+
+static struct pcmcia_low_level mst_pcmcia_ops __initdata = {
+ .owner = THIS_MODULE,
+ .hw_init = mst_pcmcia_hw_init,
+ .socket_state = mst_pcmcia_socket_state,
+ .configure_socket = mst_pcmcia_configure_socket,
+ .nr = 2,
+};
+
+static struct platform_device *mst_pcmcia_device;
+
+static int __init mst_pcmcia_init(void)
+{
+ int ret;
+
+ if (!machine_is_mainstone())
+ return -ENODEV;
+
+ mst_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
+ if (!mst_pcmcia_device)
+ return -ENOMEM;
+
+ ret = platform_device_add_data(mst_pcmcia_device, &mst_pcmcia_ops,
+ sizeof(mst_pcmcia_ops));
+ if (ret == 0)
+ ret = platform_device_add(mst_pcmcia_device);
+
+ if (ret)
+ platform_device_put(mst_pcmcia_device);
+
+ return ret;
+}
+
+static void __exit mst_pcmcia_exit(void)
+{
+ platform_device_unregister(mst_pcmcia_device);
+}
+
+fs_initcall(mst_pcmcia_init);
+module_exit(mst_pcmcia_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pxa2xx-pcmcia");