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/*
* Ralink RT288x SoC platform device registration
*
* Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
* 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/kernel.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
#include <linux/etherdevice.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/rt2x00_platform.h>
#include <asm/addrspace.h>
#include <asm/mach-ralink/rt288x.h>
#include <asm/mach-ralink/rt288x_regs.h>
#include <asm/mach-ralink/ramips_eth_platform.h>
#include "devices.h"
static struct resource rt288x_flash0_resources[] = {
{
.flags = IORESOURCE_MEM,
.start = KSEG1ADDR(RT2880_FLASH0_BASE),
.end = KSEG1ADDR(RT2880_FLASH0_BASE) +
RT2880_FLASH0_SIZE - 1,
},
};
struct physmap_flash_data rt288x_flash0_data;
static struct platform_device rt288x_flash0_device = {
.name = "physmap-flash",
.resource = rt288x_flash0_resources,
.num_resources = ARRAY_SIZE(rt288x_flash0_resources),
.dev = {
.platform_data = &rt288x_flash0_data,
},
};
static struct resource rt288x_flash1_resources[] = {
{
.flags = IORESOURCE_MEM,
.start = KSEG1ADDR(RT2880_FLASH1_BASE),
.end = KSEG1ADDR(RT2880_FLASH1_BASE) +
RT2880_FLASH1_SIZE - 1,
},
};
struct physmap_flash_data rt288x_flash1_data;
static struct platform_device rt288x_flash1_device = {
.name = "physmap-flash",
.resource = rt288x_flash1_resources,
.num_resources = ARRAY_SIZE(rt288x_flash1_resources),
.dev = {
.platform_data = &rt288x_flash1_data,
},
};
static int rt288x_flash_instance __initdata;
void __init rt288x_register_flash(unsigned int id)
{
struct platform_device *pdev;
struct physmap_flash_data *pdata;
u32 t;
int reg;
switch (id) {
case 0:
pdev = &rt288x_flash0_device;
reg = MEMC_REG_FLASH_CFG0;
break;
case 1:
pdev = &rt288x_flash1_device;
reg = MEMC_REG_FLASH_CFG1;
break;
default:
return;
}
t = rt288x_memc_rr(reg);
t = (t >> FLASH_CFG_WIDTH_SHIFT) & FLASH_CFG_WIDTH_MASK;
pdata = pdev->dev.platform_data;
switch (t) {
case FLASH_CFG_WIDTH_8BIT:
pdata->width = 1;
break;
case FLASH_CFG_WIDTH_16BIT:
pdata->width = 2;
break;
case FLASH_CFG_WIDTH_32BIT:
pdata->width = 4;
break;
default:
printk(KERN_ERR "RT288x: flash bank%u witdh is invalid\n", id);
return;
}
pdev->id = rt288x_flash_instance;
platform_device_register(pdev);
rt288x_flash_instance++;
}
static struct resource rt288x_wifi_resources[] = {
{
.start = RT2880_WMAC_BASE,
.end = RT2880_WMAC_BASE + 0x3FFFF,
.flags = IORESOURCE_MEM,
}, {
.start = RT288X_CPU_IRQ_WNIC,
.end = RT288X_CPU_IRQ_WNIC,
.flags = IORESOURCE_IRQ,
},
};
static struct rt2x00_platform_data rt288x_wifi_data;
static struct platform_device rt288x_wifi_device = {
.name = "rt2800_wmac",
.resource = rt288x_wifi_resources,
.num_resources = ARRAY_SIZE(rt288x_wifi_resources),
.dev = {
.platform_data = &rt288x_wifi_data,
}
};
void __init rt288x_register_wifi(void)
{
rt288x_wifi_data.eeprom_file_name = "RT288X.eeprom";
platform_device_register(&rt288x_wifi_device);
}
static void rt288x_fe_reset(void)
{
rt288x_sysc_wr(RT2880_RESET_FE, SYSC_REG_RESET_CTRL);
}
static struct resource rt288x_eth_resources[] = {
{
.start = RT2880_FE_BASE,
.end = RT2880_FE_BASE + PAGE_SIZE - 1,
.flags = IORESOURCE_MEM,
}, {
.start = RT288X_CPU_IRQ_FE,
.end = RT288X_CPU_IRQ_FE,
.flags = IORESOURCE_IRQ,
},
};
struct ramips_eth_platform_data rt288x_eth_data;
static struct platform_device rt288x_eth_device = {
.name = "ramips_eth",
.resource = rt288x_eth_resources,
.num_resources = ARRAY_SIZE(rt288x_eth_resources),
.dev = {
.platform_data = &rt288x_eth_data,
}
};
void __init rt288x_register_ethernet(void)
{
struct clk *clk;
clk = clk_get(NULL, "sys");
if (IS_ERR(clk))
panic("unable to get SYS clock, err=%ld", PTR_ERR(clk));
rt288x_eth_data.sys_freq = clk_get_rate(clk);
rt288x_eth_data.reset_fe = rt288x_fe_reset;
rt288x_eth_data.min_pkt_len = 64;
if (!is_valid_ether_addr(rt288x_eth_data.mac))
random_ether_addr(rt288x_eth_data.mac);
platform_device_register(&rt288x_eth_device);
}
static struct resource rt288x_wdt_resources[] = {
{
.start = RT2880_TIMER_BASE,
.end = RT2880_TIMER_BASE + RT2880_TIMER_SIZE - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device rt288x_wdt_device = {
.name = "ramips-wdt",
.id = -1,
.resource = rt288x_wdt_resources,
.num_resources = ARRAY_SIZE(rt288x_wdt_resources),
};
void __init rt288x_register_wdt(void)
{
u32 t;
/* enable WDT reset output on pin SRAM_CS_N */
t = rt288x_sysc_rr(SYSC_REG_CLKCFG);
t |= CLKCFG_SRAM_CS_N_WDT;
rt288x_sysc_wr(t, SYSC_REG_CLKCFG);
platform_device_register(&rt288x_wdt_device);
}
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