add support for on-board EHCI controller

[openwrt/staging/chunkeey.git] / target / linux / adm8668 / files / arch / mips / adm8668 / platform.c

diff --git a/target/linux/adm8668/files/arch/mips/adm8668/platform.c b/target/linux/adm8668/files/arch/mips/adm8668/platform.c
index 5030565a2c5a56a57a0830fa4d3fc36c20ebfb0a..71f3eca1422b482036033c9658ab23a1b0f2e88b 100644 (file)
--- a/target/linux/adm8668/files/arch/mips/adm8668/platform.c
+++ b/target/linux/adm8668/files/arch/mips/adm8668/platform.c
@@ -1,4 +1,6 @@
 /*
+ * Infineon/ADMTek 8668 (WildPass) platform devices support
+ *
  * Copyright (C) 2010 Scott Nicholas <neutronscott@scottn.us>
  * Copyright (C) 2012 Florian Fainelli <florian@openwrt.org>
  *
@@ -10,7 +12,10 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
+#include <linux/platform_data/tulip.h>
+#include <linux/usb/ehci_pdriver.h>
 #include <linux/mtd/physmap.h>
+#include <linux/mtd/partitions.h>
 #include <linux/pci.h>
 #include <linux/slab.h>
 #include <linux/ioport.h>
@@ -24,6 +29,10 @@
 #include <asm/io.h>
 #include <adm8668.h>
 
+#define ADM8868_UBOOT_ENV              0x20000
+#define ADM8868_UBOOT_WAN_MAC          0x5ac
+#define ADM8868_UBOOT_LAN_MAC          0x404
+
 static void adm8668_uart_set_mctrl(struct amba_device *dev,
                                        void __iomem *base,
                                        unsigned int mcrtl)
@@ -63,11 +72,16 @@ static struct resource eth0_resources[] = {
        },
 };
 
+static struct tulip_platform_data eth0_pdata = {
+       .chip_id        = ADM8668,
+};
+
 static struct platform_device adm8668_eth0_device = {
-       .name           = "adm8668_eth",
+       .name           = "tulip",
        .id             = 0,
        .resource       = eth0_resources,
        .num_resources  = ARRAY_SIZE(eth0_resources),
+       .dev.platform_data = &eth0_pdata,
 };
 
 static struct resource eth1_resources[] = {
@@ -82,18 +96,117 @@ static struct resource eth1_resources[] = {
        },
 };
 
+static struct tulip_platform_data eth1_pdata = {
+       .chip_id        = ADM8668,
+};
+
 static struct platform_device adm8668_eth1_device = {
-       .name           = "adm8668_eth",
+       .name           = "tulip",
        .id             = 1,
        .resource       = eth1_resources,
        .num_resources  = ARRAY_SIZE(eth1_resources),
+       .dev.platform_data = &eth1_pdata,
+};
+
+static const char *nor_probe_types[] = { "adm8668part", NULL };
+
+static struct physmap_flash_data nor_flash_data = {
+       .width                  = 2,
+       .part_probe_types       = nor_probe_types,
+};
+
+static struct resource nor_resources[] = {
+       {
+               .start  = ADM8668_SMEM1_BASE,
+               .end    = ADM8668_SMEM1_BASE + 0x800000 - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+};
+
+static struct platform_device adm8668_nor_device = {
+       .name           = "physmap-flash",
+       .id             = -1,
+       .resource       = nor_resources,
+       .num_resources  = ARRAY_SIZE(nor_resources),
+       .dev.platform_data = &nor_flash_data,
+};
+
+static struct resource usb_resources[] = {
+       {
+               .start  = ADM8668_USB_BASE,
+               .end    = ADM8668_USB_BASE + 0x1FFFFF,
+               .flags  = IORESOURCE_MEM,
+       },
+       {
+               .start  = INT_LVL_USB,
+               .end    = INT_LVL_USB,
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static struct usb_ehci_pdata usb_pdata = {
+       .caps_offset    = 0x100,
+       .has_tt         = 1,
+       .port_power_off = 1,
+};
+
+static struct platform_device adm8668_usb_device = {
+       .name           = "ehci-platform",
+       .id             = -1,
+       .resource       = usb_resources,
+       .num_resources  = ARRAY_SIZE(usb_resources),
+       .dev.platform_data = &usb_pdata,
 };
 
 static struct platform_device *adm8668_devs[] = {
        &adm8668_eth0_device,
        &adm8668_eth1_device,
+       &adm8668_nor_device,
+       &adm8668_usb_device,
 };
 
+static void adm8668_fetch_mac(int unit)
+{
+       u8 *mac;
+       u32 offset;
+       struct tulip_platform_data *pdata;
+
+       switch (unit) {
+       case -1:
+       case 0:
+               offset = ADM8868_UBOOT_LAN_MAC;
+               pdata = &eth0_pdata;
+               break;
+       case 1:
+               offset = ADM8868_UBOOT_WAN_MAC;
+               pdata = &eth1_pdata;
+               break;
+       default:
+               pr_err("unsupported ethernet unit: %d\n", unit);
+               return;
+       }
+
+       mac = (u8 *)(KSEG1ADDR(ADM8668_SMEM1_BASE) + ADM8868_UBOOT_ENV + offset);
+
+       memcpy(pdata->mac, mac, sizeof(pdata->mac));
+}
+
+static void adm8668_ehci_workaround(void)
+{
+       u32 chipid;
+
+       chipid = ADM8668_CONFIG_REG(ADM8668_CR0);
+       ADM8668_CONFIG_REG(ADM8668_CR66) = 0x0C1600D9;
+
+       if (chipid == 0x86880001)
+               return;
+
+       ADM8668_CONFIG_REG(ADM8668_CR66) &= ~(3 << 20);
+       ADM8668_CONFIG_REG(ADM8668_CR66) |= (1 << 20);
+       pr_info("ADM8668: applied USB workaround\n");
+}
+
+
 int __devinit adm8668_devs_register(void)
 {
        int ret;
@@ -102,6 +215,10 @@ int __devinit adm8668_devs_register(void)
        if (ret)
                panic("failed to register AMBA UART");
 
+       adm8668_fetch_mac(0);
+       adm8668_fetch_mac(1);
+       adm8668_ehci_workaround();
+
        return platform_add_devices(adm8668_devs, ARRAY_SIZE(adm8668_devs));
 }
 arch_initcall(adm8668_devs_register);