/*
+ * Infineon/ADMTek 8668 (WildPass) platform devices support
+ *
* Copyright (C) 2010 Scott Nicholas <neutronscott@scottn.us>
+ * Copyright (C) 2012 Florian Fainelli <florian@openwrt.org>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
#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>
+#include <linux/amba/bus.h>
+#include <linux/amba/serial.h>
+
#include <asm/reboot.h>
#include <asm/time.h>
#include <asm/addrspace.h>
#include <asm/io.h>
#include <adm8668.h>
-static struct resource uart_resources[] = {
- {
+#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)
+{
+}
+
+static struct amba_pl010_data adm8668_uart0_data = {
+ .set_mctrl = adm8668_uart_set_mctrl,
+};
+
+static struct amba_device adm8668_uart0_device = {
+ .dev = {
+ .init_name = "apb:uart0",
+ .platform_data = &adm8668_uart0_data,
+ },
+ .res = {
.start = ADM8668_UART0_BASE,
.end = ADM8668_UART0_BASE + 0xF,
.flags = IORESOURCE_MEM,
},
- {
- .start = INT_LVL_UART0,
- .flags = IORESOURCE_IRQ,
+ .irq = {
+ INT_LVL_UART0,
+ -1
},
-};
-
-static struct platform_device adm8668_uart_device = {
- .name = "adm8668_uart",
- .id = 0,
- .resource = uart_resources,
- .num_resources = ARRAY_SIZE(uart_resources),
+ .periphid = 0x0041010,
};
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 = ð0_pdata,
};
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 = ð1_pdata,
};
-static void adm8668_restart(char *cmd)
-{
- int i;
-
- /* stop eth0 and eth1 */
- ADM8668_LAN_REG(NETCSR6) = (1 << 13) | (1 << 1);
- ADM8668_LAN_REG(NETCSR7) = 0;
- ADM8668_WAN_REG(NETCSR6) = (1 << 13) | (1 << 1);
- ADM8668_WAN_REG(NETCSR7) = 0;
-
- /* reset PHY */
- ADM8668_WAN_REG(NETCSR37) = 0x20;
- for (i = 0; i < 10000; i++)
- ;
- ADM8668_WAN_REG(NETCSR37) = 0;
- for (i = 0; i < 10000; i++)
- ;
-
- *(volatile unsigned int *)0xB1600000 = 1; /* reset eth0 mac */
- *(volatile unsigned int *)0xB1A00000 = 1; /* reset eth1 mac */
- *(volatile unsigned int *)0xB1800000 = 1; /* reset wlan0 mac */
-
- /* the real deal */
- for (i = 0; i < 1000; i++)
- ;
- ADM8668_CONFIG_REG(ADM8668_CR1) = 1;
-}
+static const char *nor_probe_types[] = { "adm8668part", NULL };
-int __devinit adm8668_devs_register(void)
-{
- _machine_restart = adm8668_restart;
- platform_device_register(&adm8668_uart_device);
- platform_device_register(&adm8668_eth0_device);
- platform_device_register(&adm8668_eth1_device);
+static struct physmap_flash_data nor_flash_data = {
+ .width = 2,
+ .part_probe_types = nor_probe_types,
+};
- return 0;
-}
+static struct resource nor_resources[] = {
+ {
+ .start = ADM8668_SMEM1_BASE,
+ .end = ADM8668_SMEM1_BASE + 0x800000 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
-void __init plat_time_init(void)
-{
- int adj = (ADM8668_CONFIG_REG(ADM8668_CR3) >> 11) & 0xf;
+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,
+};
- /* adjustable clock selection
- CR3 bit 14~11, 0000 -> 175MHz, 0001 -> 180MHz, etc... */
+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,
+ },
+};
- mips_hpt_frequency = (SYS_CLOCK + adj * 5000000) / 2;
- printk("ADM8668 CPU clock: %d MHz\n", 2*mips_hpt_frequency / 1000000);
-}
+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,
+};
-void __init plat_mem_setup(void)
+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)
{
- /* prom_init seemed like easier place for this. it's tooo simple */
+ u8 *mac;
+ u32 offset;
+ struct tulip_platform_data *pdata;
+
+ switch (unit) {
+ case -1:
+ case 0:
+ offset = ADM8868_UBOOT_LAN_MAC;
+ pdata = ð0_pdata;
+ break;
+ case 1:
+ offset = ADM8868_UBOOT_WAN_MAC;
+ pdata = ð1_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));
}
-const char *get_system_type(void)
+static void adm8668_ehci_workaround(void)
{
- unsigned long chipid = ADM8668_CONFIG_REG(ADM8668_CR0);
- int adj = (ADM8668_CONFIG_REG(ADM8668_CR3) >> 11) & 0xf;
- int product, revision, mhz;
- static char ret[32];
+ u32 chipid;
- product = chipid >> 16;
- revision = chipid & 0xffff;
- mhz = (SYS_CLOCK/1000000) + (adj * 5);
+ chipid = ADM8668_CONFIG_REG(ADM8668_CR0);
+ ADM8668_CONFIG_REG(ADM8668_CR66) = 0x0C1600D9;
- /* i getting fancy :\ */
- snprintf(ret, sizeof(ret), "ADM%xr%x %dMHz", product, revision, mhz);
+ if (chipid == 0x86880001)
+ return;
- return ret;
+ 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;
+
+ ret = amba_device_register(&adm8668_uart0_device, &iomem_resource);
+ 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);
projects / openwrt / staging / chunkeey.git / blobdiff