+++ /dev/null
-/*
- * Ralink RT305x SoC specific setup
- *
- * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * Parts of this file are based on Ralink's 2.6.21 BSP
- *
- * 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/init.h>
-#include <linux/module.h>
-
-#include <asm/mipsregs.h>
-
-#include <asm/mach-ralink/common.h>
-#include <asm/mach-ralink/ramips_gpio.h>
-#include <asm/mach-ralink/rt305x.h>
-#include <asm/mach-ralink/rt305x_regs.h>
-
-void __iomem * rt305x_sysc_base;
-void __iomem * rt305x_memc_base;
-enum rt305x_soc_type rt305x_soc;
-
-static unsigned long rt5350_get_mem_size(void)
-{
- void __iomem *sysc = (void __iomem *) KSEG1ADDR(RT305X_SYSC_BASE);
- unsigned long ret;
- u32 t;
-
- t = __raw_readl(sysc + SYSC_REG_SYSTEM_CONFIG);
- t = (t >> RT5350_SYSCFG0_DRAM_SIZE_SHIFT) &
- RT5350_SYSCFG0_DRAM_SIZE_MASK;
-
- switch (t) {
- case RT5350_SYSCFG0_DRAM_SIZE_2M:
- ret = 2 * 1024 * 1024;
- break;
- case RT5350_SYSCFG0_DRAM_SIZE_8M:
- ret = 8 * 1024 * 1024;
- break;
- case RT5350_SYSCFG0_DRAM_SIZE_16M:
- ret = 16 * 1024 * 1024;
- break;
- case RT5350_SYSCFG0_DRAM_SIZE_32M:
- ret = 32 * 1024 * 1024;
- break;
- case RT5350_SYSCFG0_DRAM_SIZE_64M:
- ret = 64 * 1024 * 1024;
- break;
- default:
- panic("rt5350: invalid DRAM size: %u", t);
- break;
- }
-
- return ret;
-}
-
-void __init ramips_soc_prom_init(void)
-{
- void __iomem *sysc = (void __iomem *) KSEG1ADDR(RT305X_SYSC_BASE);
- const char *name = "unknown";
- u32 n0;
- u32 n1;
- u32 id;
-
- n0 = __raw_readl(sysc + SYSC_REG_CHIP_NAME0);
- n1 = __raw_readl(sysc + SYSC_REG_CHIP_NAME1);
-
- if (n0 == RT3052_CHIP_NAME0 && n1 == RT3052_CHIP_NAME1) {
- unsigned long icache_sets;
-
- icache_sets = (read_c0_config1() >> 22) & 7;
- if (icache_sets == 1) {
- rt305x_soc = RT305X_SOC_RT3050;
- name = "RT3050";
- } else {
- rt305x_soc = RT305X_SOC_RT3052;
- name = "RT3052";
- }
- } else if (n0 == RT3350_CHIP_NAME0 && n1 == RT3350_CHIP_NAME1) {
- rt305x_soc = RT305X_SOC_RT3350;
- name = "RT3350";
- } else if (n0 == RT3352_CHIP_NAME0 && n1 == RT3352_CHIP_NAME1) {
- rt305x_soc = RT305X_SOC_RT3352;
- name = "RT3352";
- } else if (n0 == RT5350_CHIP_NAME0 && n1 == RT5350_CHIP_NAME1) {
- rt305x_soc = RT305X_SOC_RT5350;
- name = "RT5350";
- } else {
- panic("rt305x: unknown SoC, n0:%08x n1:%08x\n", n0, n1);
- }
-
- id = __raw_readl(sysc + SYSC_REG_CHIP_ID);
-
- snprintf(ramips_sys_type, RAMIPS_SYS_TYPE_LEN,
- "Ralink %s id:%u rev:%u",
- name,
- (id >> CHIP_ID_ID_SHIFT) & CHIP_ID_ID_MASK,
- (id & CHIP_ID_REV_MASK));
-
- ramips_mem_base = RT305X_SDRAM_BASE;
-
- if (soc_is_rt5350()) {
- ramips_get_mem_size = rt5350_get_mem_size;
- } else if (soc_is_rt305x() || soc_is_rt3350() ) {
- ramips_mem_size_min = RT305X_MEM_SIZE_MIN;
- ramips_mem_size_max = RT305X_MEM_SIZE_MAX;
- } else if (soc_is_rt3352()) {
- ramips_mem_size_min = RT3352_MEM_SIZE_MIN;
- ramips_mem_size_max = RT3352_MEM_SIZE_MAX;
- } else {
- BUG();
- }
-}
-
-static struct ramips_gpio_chip rt305x_gpio_chips[] = {
- {
- .chip = {
- .label = "RT305X-GPIO0",
- .base = 0,
- .ngpio = 24,
- },
- .regs = {
- [RAMIPS_GPIO_REG_INT] = 0x00,
- [RAMIPS_GPIO_REG_EDGE] = 0x04,
- [RAMIPS_GPIO_REG_RENA] = 0x08,
- [RAMIPS_GPIO_REG_FENA] = 0x0c,
- [RAMIPS_GPIO_REG_DATA] = 0x20,
- [RAMIPS_GPIO_REG_DIR] = 0x24,
- [RAMIPS_GPIO_REG_POL] = 0x28,
- [RAMIPS_GPIO_REG_SET] = 0x2c,
- [RAMIPS_GPIO_REG_RESET] = 0x30,
- [RAMIPS_GPIO_REG_TOGGLE] = 0x34,
- },
- .map_base = RT305X_PIO_BASE,
- .map_size = RT305X_PIO_SIZE,
- },
- {
- .chip = {
- .label = "RT305X-GPIO1",
- .base = 24,
- .ngpio = 16,
- },
- .regs = {
- [RAMIPS_GPIO_REG_INT] = 0x38,
- [RAMIPS_GPIO_REG_EDGE] = 0x3c,
- [RAMIPS_GPIO_REG_RENA] = 0x40,
- [RAMIPS_GPIO_REG_FENA] = 0x44,
- [RAMIPS_GPIO_REG_DATA] = 0x48,
- [RAMIPS_GPIO_REG_DIR] = 0x4c,
- [RAMIPS_GPIO_REG_POL] = 0x50,
- [RAMIPS_GPIO_REG_SET] = 0x54,
- [RAMIPS_GPIO_REG_RESET] = 0x58,
- [RAMIPS_GPIO_REG_TOGGLE] = 0x5c,
- },
- .map_base = RT305X_PIO_BASE,
- .map_size = RT305X_PIO_SIZE,
- },
- {
- .chip = {
- .label = "RT305X-GPIO2",
- .base = 40,
- .ngpio = 12,
- },
- .regs = {
- [RAMIPS_GPIO_REG_INT] = 0x60,
- [RAMIPS_GPIO_REG_EDGE] = 0x64,
- [RAMIPS_GPIO_REG_RENA] = 0x68,
- [RAMIPS_GPIO_REG_FENA] = 0x6c,
- [RAMIPS_GPIO_REG_DATA] = 0x70,
- [RAMIPS_GPIO_REG_DIR] = 0x74,
- [RAMIPS_GPIO_REG_POL] = 0x78,
- [RAMIPS_GPIO_REG_SET] = 0x7c,
- [RAMIPS_GPIO_REG_RESET] = 0x80,
- [RAMIPS_GPIO_REG_TOGGLE] = 0x84,
- },
- .map_base = RT305X_PIO_BASE,
- .map_size = RT305X_PIO_SIZE,
- },
-};
-
-static struct ramips_gpio_data rt305x_gpio_data = {
- .chips = rt305x_gpio_chips,
- .num_chips = ARRAY_SIZE(rt305x_gpio_chips),
-};
-
-static void rt305x_gpio_reserve(int first, int last)
-{
- for (; first <= last; first++)
- gpio_request(first, "reserved");
-}
-
-void __init rt305x_gpio_init(u32 mode)
-{
- u32 t;
-
- rt305x_sysc_wr(mode, SYSC_REG_GPIO_MODE);
-
- ramips_gpio_init(&rt305x_gpio_data);
- if ((mode & RT305X_GPIO_MODE_I2C) == 0)
- rt305x_gpio_reserve(RT305X_GPIO_I2C_SD, RT305X_GPIO_I2C_SCLK);
-
- if ((mode & RT305X_GPIO_MODE_SPI) == 0)
- rt305x_gpio_reserve(RT305X_GPIO_SPI_EN, RT305X_GPIO_SPI_CLK);
-
- t = mode >> RT305X_GPIO_MODE_UART0_SHIFT;
- t &= RT305X_GPIO_MODE_UART0_MASK;
- switch (t) {
- case RT305X_GPIO_MODE_UARTF:
- case RT305X_GPIO_MODE_PCM_UARTF:
- case RT305X_GPIO_MODE_PCM_I2S:
- case RT305X_GPIO_MODE_I2S_UARTF:
- rt305x_gpio_reserve(RT305X_GPIO_7, RT305X_GPIO_14);
- break;
- case RT305X_GPIO_MODE_PCM_GPIO:
- rt305x_gpio_reserve(RT305X_GPIO_10, RT305X_GPIO_14);
- break;
- case RT305X_GPIO_MODE_GPIO_UARTF:
- case RT305X_GPIO_MODE_GPIO_I2S:
- rt305x_gpio_reserve(RT305X_GPIO_7, RT305X_GPIO_10);
- break;
- }
-
- if ((mode & RT305X_GPIO_MODE_UART1) == 0)
- rt305x_gpio_reserve(RT305X_GPIO_UART1_TXD,
- RT305X_GPIO_UART1_RXD);
-
- if ((mode & RT305X_GPIO_MODE_JTAG) == 0)
- rt305x_gpio_reserve(RT305X_GPIO_JTAG_TDO, RT305X_GPIO_JTAG_TDI);
-
- if ((mode & RT305X_GPIO_MODE_MDIO) == 0)
- rt305x_gpio_reserve(RT305X_GPIO_MDIO_MDC,
- RT305X_GPIO_MDIO_MDIO);
-
- if ((mode & RT305X_GPIO_MODE_SDRAM) == 0)
- rt305x_gpio_reserve(RT305X_GPIO_SDRAM_MD16,
- RT305X_GPIO_SDRAM_MD31);
-
- if ((mode & RT305X_GPIO_MODE_RGMII) == 0)
- rt305x_gpio_reserve(RT305X_GPIO_GE0_TXD0,
- RT305X_GPIO_GE0_RXCLK);
-}
projects / openwrt / svn-archive / archive.git / blobdiff