mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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4c24144f1f
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30474 3c298f89-4303-0410-b956-a3cf2f4a3e73
212 lines
4.8 KiB
C
212 lines
4.8 KiB
C
/*
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* Ralink RT288x SoC platform device registration
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*
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* Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
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* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/physmap.h>
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#include <linux/etherdevice.h>
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#include <linux/err.h>
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#include <linux/clk.h>
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#include <linux/rt2x00_platform.h>
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#include <asm/addrspace.h>
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#include <asm/mach-ralink/rt288x.h>
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#include <asm/mach-ralink/rt288x_regs.h>
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#include <asm/mach-ralink/ramips_eth_platform.h>
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#include "devices.h"
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static struct resource rt288x_flash0_resources[] = {
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{
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.flags = IORESOURCE_MEM,
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.start = KSEG1ADDR(RT2880_FLASH0_BASE),
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.end = KSEG1ADDR(RT2880_FLASH0_BASE) +
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RT2880_FLASH0_SIZE - 1,
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},
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};
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struct physmap_flash_data rt288x_flash0_data;
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static struct platform_device rt288x_flash0_device = {
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.name = "physmap-flash",
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.resource = rt288x_flash0_resources,
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.num_resources = ARRAY_SIZE(rt288x_flash0_resources),
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.dev = {
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.platform_data = &rt288x_flash0_data,
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},
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};
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static struct resource rt288x_flash1_resources[] = {
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{
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.flags = IORESOURCE_MEM,
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.start = KSEG1ADDR(RT2880_FLASH1_BASE),
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.end = KSEG1ADDR(RT2880_FLASH1_BASE) +
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RT2880_FLASH1_SIZE - 1,
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},
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};
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struct physmap_flash_data rt288x_flash1_data;
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static struct platform_device rt288x_flash1_device = {
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.name = "physmap-flash",
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.resource = rt288x_flash1_resources,
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.num_resources = ARRAY_SIZE(rt288x_flash1_resources),
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.dev = {
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.platform_data = &rt288x_flash1_data,
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},
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};
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static int rt288x_flash_instance __initdata;
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void __init rt288x_register_flash(unsigned int id)
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{
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struct platform_device *pdev;
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struct physmap_flash_data *pdata;
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u32 t;
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int reg;
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switch (id) {
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case 0:
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pdev = &rt288x_flash0_device;
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reg = MEMC_REG_FLASH_CFG0;
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break;
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case 1:
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pdev = &rt288x_flash1_device;
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reg = MEMC_REG_FLASH_CFG1;
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break;
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default:
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return;
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}
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t = rt288x_memc_rr(reg);
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t = (t >> FLASH_CFG_WIDTH_SHIFT) & FLASH_CFG_WIDTH_MASK;
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pdata = pdev->dev.platform_data;
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switch (t) {
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case FLASH_CFG_WIDTH_8BIT:
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pdata->width = 1;
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break;
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case FLASH_CFG_WIDTH_16BIT:
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pdata->width = 2;
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break;
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case FLASH_CFG_WIDTH_32BIT:
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pdata->width = 4;
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break;
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default:
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printk(KERN_ERR "RT288x: flash bank%u witdh is invalid\n", id);
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return;
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}
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pdev->id = rt288x_flash_instance;
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platform_device_register(pdev);
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rt288x_flash_instance++;
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}
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static struct resource rt288x_wifi_resources[] = {
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{
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.start = RT2880_WMAC_BASE,
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.end = RT2880_WMAC_BASE + 0x3FFFF,
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.flags = IORESOURCE_MEM,
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}, {
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.start = RT288X_CPU_IRQ_WNIC,
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.end = RT288X_CPU_IRQ_WNIC,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct rt2x00_platform_data rt288x_wifi_data;
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static struct platform_device rt288x_wifi_device = {
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.name = "rt2800_wmac",
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.resource = rt288x_wifi_resources,
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.num_resources = ARRAY_SIZE(rt288x_wifi_resources),
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.dev = {
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.platform_data = &rt288x_wifi_data,
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}
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};
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void __init rt288x_register_wifi(void)
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{
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rt288x_wifi_data.eeprom_file_name = "RT288X.eeprom";
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platform_device_register(&rt288x_wifi_device);
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}
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static void rt288x_fe_reset(void)
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{
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rt288x_sysc_wr(RT2880_RESET_FE, SYSC_REG_RESET_CTRL);
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}
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static struct resource rt288x_eth_resources[] = {
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{
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.start = RT2880_FE_BASE,
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.end = RT2880_FE_BASE + PAGE_SIZE - 1,
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.flags = IORESOURCE_MEM,
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}, {
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.start = RT288X_CPU_IRQ_FE,
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.end = RT288X_CPU_IRQ_FE,
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.flags = IORESOURCE_IRQ,
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},
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};
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struct ramips_eth_platform_data rt288x_eth_data;
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static struct platform_device rt288x_eth_device = {
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.name = "ramips_eth",
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.resource = rt288x_eth_resources,
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.num_resources = ARRAY_SIZE(rt288x_eth_resources),
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.dev = {
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.platform_data = &rt288x_eth_data,
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}
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};
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void __init rt288x_register_ethernet(void)
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{
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struct clk *clk;
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clk = clk_get(NULL, "sys");
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if (IS_ERR(clk))
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panic("unable to get SYS clock, err=%ld", PTR_ERR(clk));
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rt288x_eth_data.sys_freq = clk_get_rate(clk);
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rt288x_eth_data.reset_fe = rt288x_fe_reset;
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rt288x_eth_data.min_pkt_len = 64;
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if (!is_valid_ether_addr(rt288x_eth_data.mac))
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random_ether_addr(rt288x_eth_data.mac);
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platform_device_register(&rt288x_eth_device);
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}
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static struct resource rt288x_wdt_resources[] = {
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{
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.start = RT2880_TIMER_BASE,
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.end = RT2880_TIMER_BASE + RT2880_TIMER_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device rt288x_wdt_device = {
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.name = "ramips-wdt",
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.id = -1,
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.resource = rt288x_wdt_resources,
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.num_resources = ARRAY_SIZE(rt288x_wdt_resources),
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};
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void __init rt288x_register_wdt(void)
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{
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u32 t;
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/* enable WDT reset output on pin SRAM_CS_N */
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t = rt288x_sysc_rr(SYSC_REG_CLKCFG);
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t |= CLKCFG_SRAM_CS_N_WDT;
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rt288x_sysc_wr(t, SYSC_REG_CLKCFG);
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platform_device_register(&rt288x_wdt_device);
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}
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