diff options
Diffstat (limited to 'target/linux/ramips/files/arch/mips')
31 files changed, 2008 insertions, 0 deletions
diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/cpu-feature-overrides.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/cpu-feature-overrides.h new file mode 100644 index 0000000000..6c41da851f --- /dev/null +++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/cpu-feature-overrides.h @@ -0,0 +1,56 @@ +/* + * Ralink RT288x/RT305x specific CPU feature overrides + * + * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org> + * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> + * + * This file was derived from: include/asm-mips/cpu-features.h + * Copyright (C) 2003, 2004 Ralf Baechle + * Copyright (C) 2004 Maciej W. Rozycki + * + * 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. + * + */ +#ifndef __ASM_MACH_RALINK_CPU_FEATURE_OVERRIDES_H +#define __ASM_MACH_RALINK_CPU_FEATURE_OVERRIDES_H + +#define cpu_has_tlb 1 +#define cpu_has_4kex 1 +#define cpu_has_3k_cache 0 +#define cpu_has_4k_cache 1 +#define cpu_has_tx39_cache 0 +#define cpu_has_sb1_cache 0 +#define cpu_has_fpu 0 +#define cpu_has_32fpr 0 +#define cpu_has_counter 1 +#define cpu_has_watch 1 +#define cpu_has_divec 1 + +#define cpu_has_prefetch 1 +#define cpu_has_ejtag 1 +#define cpu_has_llsc 1 + +#define cpu_has_mips16 1 +#define cpu_has_mdmx 0 +#define cpu_has_mips3d 0 +#define cpu_has_smartmips 0 + +#define cpu_has_mips32r1 1 +#define cpu_has_mips32r2 1 +#define cpu_has_mips64r1 0 +#define cpu_has_mips64r2 0 + +#define cpu_has_dsp 0 +#define cpu_has_mipsmt 0 + +#define cpu_has_64bits 0 +#define cpu_has_64bit_zero_reg 0 +#define cpu_has_64bit_gp_regs 0 +#define cpu_has_64bit_addresses 0 + +#define cpu_dcache_line_size() 32 +#define cpu_icache_line_size() 32 + +#endif /* __ASM_MACH_RALINK_CPU_FEATURE_OVERRIDES_H */ diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/gpio.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/gpio.h new file mode 100644 index 0000000000..e8a0836a32 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/gpio.h @@ -0,0 +1,52 @@ +/* + * Ralink RT288x GPIO API definitions + * + * Copyright (C) 2008-2009 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. + * + */ + +#ifndef __ASM_MACH_RT288X_GPIO_H +#define __ASM_MACH_RT288X_GPIO_H + +#define ARCH_NR_GPIOS 64 +#include <asm-generic/gpio.h> + +#include <asm/mach-ralink/rt288x.h> + +extern void __rt288x_gpio_set_value(unsigned gpio, int value); +extern int __rt288x_gpio_get_value(unsigned gpio); + +static inline int gpio_to_irq(unsigned gpio) +{ + return RT288X_GPIO_IRQ(gpio); +} + +static inline int irq_to_gpio(unsigned irq) +{ + return irq - RT288X_GPIO_IRQ_BASE; +} + +static inline int gpio_get_value(unsigned gpio) +{ + if (gpio < RT288X_GPIO_COUNT) + return __rt288x_gpio_get_value(gpio); + + return __gpio_get_value(gpio); +} + +static inline void gpio_set_value(unsigned gpio, int value) +{ + if (gpio < RT288X_GPIO_COUNT) + __rt288x_gpio_set_value(gpio, value); + else + __gpio_set_value(gpio, value); +} + +#define gpio_cansleep __gpio_cansleep + +#endif /* __ASM_MACH_RT288X_GPIO_H */ diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/irq.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/irq.h new file mode 100644 index 0000000000..90bfea3715 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/irq.h @@ -0,0 +1,17 @@ +/* + * Copyright (C) 2008 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. + */ +#ifndef __ASM_MACH_RT288X_IRQ_H +#define __ASM_MACH_RT288X_IRQ_H + +#define MIPS_CPU_IRQ_BASE 0 +#define NR_IRQS 48 + +#include_next <irq.h> + +#endif /* __ASM_MACH_RT288X_IRQ_H */ diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/platform.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/platform.h new file mode 100644 index 0000000000..4585d8b56f --- /dev/null +++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/platform.h @@ -0,0 +1,20 @@ +/* + * Ralink RT288x SoC specific platform definitions + * + * Copyright (C) 2008 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. + */ + +#ifndef __ASM_MACH_RT288X_PLATFORM_H +#define __ASM_MACH_RT288X_PLATFORM_H + +struct physmap_flash_data; + +extern void rt288x_register_flash(unsigned int id, + struct physmap_flash_data *pdata) __init; + +#endif /* __ASM_MACH_RT288X_PLATFORM_H */ diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x.h new file mode 100644 index 0000000000..9b218de025 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x.h @@ -0,0 +1,89 @@ +/* + * Ralink RT288x SoC specific definitions + * + * Copyright (C) 2008 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. + */ + +#ifndef _RT288X_H_ +#define _RT288X_H_ + +#include <linux/init.h> +#include <linux/io.h> + +void rt288x_detect_sys_type(void) __init; + +#define RT288X_SYS_TYPE_LEN 64 +extern unsigned char rt288x_sys_type[RT288X_SYS_TYPE_LEN]; + +void rt288x_detect_sys_freq(void) __init; + +extern unsigned long rt288x_cpu_freq; +extern unsigned long rt288x_sys_freq; + +extern unsigned long rt288x_mach_type; +#define RT288X_MACH_GENERIC 0 + +#define RT288X_CPU_IRQ_BASE 0 +#define RT288X_INTC_IRQ_BASE 8 +#define RT288X_INTC_IRQ_COUNT 32 +#define RT288X_GPIO_IRQ_BASE 40 + +#define RT288X_CPU_IRQ_INTC (RT288X_CPU_IRQ_BASE + 2) +#define RT288X_CPU_IRQ_PCI (RT288X_CPU_IRQ_BASE + 4) +#define RT288X_CPU_IRQ_FE (RT288X_CPU_IRQ_BASE + 5) +#define RT288X_CPU_IRQ_WNIC (RT288X_CPU_IRQ_BASE + 6) +#define RT288X_CPU_IRQ_COUNTER (RT288X_CPU_IRQ_BASE + 7) + +#define RT2880_INTC_IRQ_TIMER0 (RT288X_INTC_IRQ_BASE + 0) +#define RT2880_INTC_IRQ_TIMER1 (RT288X_INTC_IRQ_BASE + 1) +#define RT2880_INTC_IRQ_UART0 (RT288X_INTC_IRQ_BASE + 2) +#define RT2880_INTC_IRQ_PIO (RT288X_INTC_IRQ_BASE + 3) +#define RT2880_INTC_IRQ_PCM (RT288X_INTC_IRQ_BASE + 4) +#define RT2880_INTC_IRQ_UART1 (RT288X_INTC_IRQ_BASE + 8) +#define RT2880_INTC_IRQ_IA (RT288X_INTC_IRQ_BASE + 23) + +#define RT288X_GPIO_IRQ(x) (RT288X_GPIO_IRQ_BASE + (x)) +#define RT288X_GPIO_COUNT 32 + +extern void __iomem *rt288x_sysc_base; +extern void __iomem *rt288x_intc_base; +extern void __iomem *rt288x_memc_base; + +static inline void rt288x_sysc_wr(u32 val, unsigned reg) +{ + __raw_writel(val, rt288x_sysc_base + reg); +} + +static inline u32 rt288x_sysc_rr(unsigned reg) +{ + return __raw_readl(rt288x_sysc_base + reg); +} + +static inline void rt288x_intc_wr(u32 val, unsigned reg) +{ + __raw_writel(val, rt288x_intc_base + reg); +} + +static inline u32 rt288x_intc_rr(unsigned reg) +{ + return __raw_readl(rt288x_intc_base + reg); +} + +static inline void rt288x_memc_wr(u32 val, unsigned reg) +{ + __raw_writel(val, rt288x_memc_base + reg); +} + +static inline u32 rt288x_memc_rr(unsigned reg) +{ + return __raw_readl(rt288x_memc_base + reg); +} + +#endif /* _RT228X_H_ */ diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x_regs.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x_regs.h new file mode 100644 index 0000000000..4431a65df8 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt288x_regs.h @@ -0,0 +1,121 @@ +/* + * Ralink RT288x SoC register definitions + * + * Copyright (C) 2008-2009 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. + */ + +#ifndef _RT288X_REGS_H_ +#define _RT288X_REGS_H_ + +#include <linux/bitops.h> + +#define RT2880_SYSC_BASE 0x00300000 +#define RT2880_TIMER_BASE 0x00300100 +#define RT2880_INTC_BASE 0x00300200 +#define RT2880_MEMC_BASE 0x00300300 +#define RT2880_UART0_BASE 0x00300500 +#define RT2880_PIO_BASE 0x00300600 +#define RT2880_I2C_BASE 0x00300900 +#define RT2880_SPI_BASE 0x00300b00 +#define RT2880_UART1_BASE 0x00300c00 +#define RT2880_FE_BASE 0x00310000 +#define RT2880_ROM_BASE 0x00400000 +#define RT2880_PCI_BASE 0x00500000 +#define RT2880_WMAC_BASE 0x00600000 +#define RT2880_FLASH1_BASE 0x01000000 +#define RT2880_FLASH0_BASE 0x1fc00000 +#define RT2880_SDRAM_BASE 0x08000000 + +#define RT2880_SYSC_SIZE 0x100 +#define RT2880_INTC_SIZE 0x100 +#define RT2880_MEMC_SIZE 0x100 +#define RT2880_UART0_SIZE 0x100 +#define RT2880_UART1_SIZE 0x100 +#define RT2880_FLASH1_SIZE (16 * 1024 * 1024) +#define RT2880_FLASH0_SIZE (4 * 1024 * 1024) + +/* SYSC registers */ +#define SYSC_REG_CHIP_NAME0 0x000 /* Chip Name 0 */ +#define SYSC_REG_CHIP_NAME1 0x004 /* Chip Name 1 */ +#define SYSC_REG_CHIP_ID 0x00c /* Chip Identification */ +#define SYSC_REG_SYSTEM_CONFIG 0x010 /* System Configuration */ +#define SYSC_REG_RESET_CTRL 0x034 /* Reset Control*/ +#define SYSC_REG_RESET_STATUS 0x038 /* Reset Status*/ +#define SYSC_REG_IA_ADDRESS 0x310 /* Illegal Access Address */ +#define SYSC_REG_IA_TYPE 0x314 /* Illegal Access Type */ + +#define CHIP_ID_ID_MASK 0xff +#define CHIP_ID_ID_SHIFT 8 +#define CHIP_ID_REV_MASK 0xff + +#define SYSTEM_CONFIG_CPUCLK_SHIFT 20 +#define SYSTEM_CONFIG_CPUCLK_MASK 0x3 +#define SYSTEM_CONFIG_CPUCLK_250 0x0 +#define SYSTEM_CONFIG_CPUCLK_266 0x1 +#define SYSTEM_CONFIG_CPUCLK_280 0x2 +#define SYSTEM_CONFIG_CPUCLK_300 0x3 + +#define RT2880_RESET_SYSTEM BIT(0) +#define RT2880_RESET_TIMER BIT(1) +#define RT2880_RESET_INTC BIT(2) +#define RT2880_RESET_MEMC BIT(3) +#define RT2880_RESET_CPU BIT(4) +#define RT2880_RESET_UART0 BIT(5) +#define RT2880_RESET_PIO BIT(6) +#define RT2880_RESET_I2C BIT(9) +#define RT2880_RESET_SPI BIT(11) +#define RT2880_RESET_UART1 BIT(12) +#define RT2880_RESET_PCI BIT(16) +#define RT2880_RESET_WMAC BIT(17) +#define RT2880_RESET_FE BIT(18) +#define RT2880_RESET_PCM BIT(19) + +/* TIMER registers */ + +/* INTC register */ +#define INTC_REG_STATUS0 0x00 +#define INTC_REG_STATUS1 0x04 +#define INTC_REG_TYPE 0x20 +#define INTC_REG_RAW_STATUS 0x30 +#define INTC_REG_ENABLE 0x34 +#define INTC_REG_DISABLE 0x38 + +#define RT2880_INTC_INT_TIMER0 BIT(0) +#define RT2880_INTC_INT_TIMER1 BIT(1) +#define RT2880_INTC_INT_UART0 BIT(2) +#define RT2880_INTC_INT_PIO BIT(3) +#define RT2880_INTC_INT_PCM BIT(4) +#define RT2880_INTC_INT_UART1 BIT(8) +#define RT2880_INTC_INT_IA BIT(23) +#define RT2880_INTC_INT_GLOBAL BIT(31) + +/* MEMC registers */ +#define MEMC_REG_SDRAM_CFG0 0x00 +#define MEMC_REG_SDRAM_CFG1 0x04 +#define MEMC_REG_FLASH_CFG0 0x08 +#define MEMC_REG_FLASH_CFG1 0x0c +#define MEMC_REG_IA_ADDR 0x10 +#define MEMC_REG_IA_TYPE 0x14 + +#define FLASH_CFG_WIDTH_SHIFT 26 +#define FLASH_CFG_WIDTH_MASK 0x3 +#define FLASH_CFG_WIDTH_8BIT 0x0 +#define FLASH_CFG_WIDTH_16BIT 0x1 +#define FLASH_CFG_WIDTH_32BIT 0x2 + +/* UART registers */ +#define UART_REG_RX 0 +#define UART_REG_TX 1 +#define UART_REG_IER 2 +#define UART_REG_IIR 3 +#define UART_REG_FCR 4 +#define UART_REG_LCR 5 +#define UART_REG_MCR 6 +#define UART_REG_LSR 7 + +#endif /* _RT288X_REGS_H_ */ diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x.h new file mode 100644 index 0000000000..7dcef168a9 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x.h @@ -0,0 +1,91 @@ +/* + * Ralink RT305x SoC specific definitions + * + * Copyright (C) 2009 Gabor Juhos <juhosg@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. + */ + +#ifndef _RT305X_H_ +#define _RT305X_H_ + +#include <linux/init.h> +#include <linux/io.h> + +void rt305x_detect_sys_type(void) __init; + +#define RT305X_SYS_TYPE_LEN 64 +extern unsigned char rt305x_sys_type[RT305X_SYS_TYPE_LEN]; + +void rt305x_detect_sys_freq(void) __init; + +extern unsigned long rt305x_cpu_freq; +extern unsigned long rt305x_sys_freq; + +#define RT305X_MEM_SIZE_MIN (2 * 1024 * 1024) +#define RT305X_MEM_SIZE_MAX (64 * 1024 * 1024) + +#define RT305X_CPU_IRQ_BASE 0 +#define RT305X_INTC_IRQ_BASE 8 +#define RT305X_INTC_IRQ_COUNT 32 +#define RT305X_GPIO_IRQ_BASE 40 + +#define RT305X_CPU_IRQ_INTC (RT305X_CPU_IRQ_BASE + 2) +#define RT305X_CPU_IRQ_FE (RT305X_CPU_IRQ_BASE + 5) +#define RT305X_CPU_IRQ_WNIC (RT305X_CPU_IRQ_BASE + 6) +#define RT305X_CPU_IRQ_COUNTER (RT305X_CPU_IRQ_BASE + 7) + +#define RT305X_INTC_IRQ_SYSCTL (RT305X_INTC_IRQ_BASE + 0) +#define RT305X_INTC_IRQ_TIMER0 (RT305X_INTC_IRQ_BASE + 1) +#define RT305X_INTC_IRQ_TIMER1 (RT305X_INTC_IRQ_BASE + 2) +#define RT305X_INTC_IRQ_IA (RT305X_INTC_IRQ_BASE + 3) +#define RT305X_INTC_IRQ_PCM (RT305X_INTC_IRQ_BASE + 4) +#define RT305X_INTC_IRQ_UART0 (RT305X_INTC_IRQ_BASE + 5) +#define RT305X_INTC_IRQ_PIO (RT305X_INTC_IRQ_BASE + 6) +#define RT305X_INTC_IRQ_DMA (RT305X_INTC_IRQ_BASE + 7) +#define RT305X_INTC_IRQ_NAND (RT305X_INTC_IRQ_BASE + 8) +#define RT305X_INTC_IRQ_PERFC (RT305X_INTC_IRQ_BASE + 9) +#define RT305X_INTC_IRQ_I2S (RT305X_INTC_IRQ_BASE + 10) +#define RT305X_INTC_IRQ_UART1 (RT305X_INTC_IRQ_BASE + 12) +#define RT305X_INTC_IRQ_ESW (RT305X_INTC_IRQ_BASE + 17) +#define RT305X_INTC_IRQ_OTG (RT305X_INTC_IRQ_BASE + 18) + +extern void __iomem *rt305x_sysc_base; +extern void __iomem *rt305x_intc_base; +extern void __iomem *rt305x_memc_base; + +static inline void rt305x_sysc_wr(u32 val, unsigned reg) +{ + __raw_writel(val, rt305x_sysc_base + reg); +} + +static inline u32 rt305x_sysc_rr(unsigned reg) +{ + return __raw_readl(rt305x_sysc_base + reg); +} + +static inline void rt305x_intc_wr(u32 val, unsigned reg) +{ + __raw_writel(val, rt305x_intc_base + reg); +} + +static inline u32 rt305x_intc_rr(unsigned reg) +{ + return __raw_readl(rt305x_intc_base + reg); +} + +static inline void rt305x_memc_wr(u32 val, unsigned reg) +{ + __raw_writel(val, rt305x_memc_base + reg); +} + +static inline u32 rt305x_memc_rr(unsigned reg) +{ + return __raw_readl(rt305x_memc_base + reg); +} + +#endif /* _RT305X_H_ */ diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x_regs.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x_regs.h new file mode 100644 index 0000000000..7dd9765b80 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/rt305x_regs.h @@ -0,0 +1,132 @@ +/* + * Ralink RT305 SoC register definitions + * + * Copyright (C) 2009 Gabor Juhos <juhosg@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. + */ + +#ifndef _RT305X_REGS_H_ +#define _RT305X_REGS_H_ + +#include <linux/bitops.h> + +#define RT305X_SDRAM_BASE 0x00000000 +#define RT305X_SYSC_BASE 0x10000000 +#define RT305X_TIMER_BASE 0x10000100 +#define RT305X_INTC_BASE 0x10000200 +#define RT305X_MEMC_BASE 0x10000300 +#define RT305X_PCM_BASE 0x10000400 +#define RT305X_UART0_BASE 0x10000500 +#define RT305X_PIO_BASE 0x10000600 +#define RT305X_GDMA_BASE 0x10000700 +#define RT305X_NANDC_BASE 0x10000800 +#define RT305X_I2C_BASE 0x10000900 +#define RT305X_I2S_BASE 0x10000a00 +#define RT305X_SPI_BASE 0x10000b00 +#define RT305X_UART1_BASE 0x10000c00 +#define RT305X_FE_BASE 0x10010000 +#define RT305X_SWITCH_BASE 0x10110000 +#define RT305X_WMAC_BASE 0x00180000 +#define RT305X_OTG_BASE 0x101c0000 +#define RT305X_ROM_BASE 0x00400000 +#define RT305X_FLASH1_BASE 0x1b000000 +#define RT305X_FLASH0_BASE 0x1f000000 + +#define RT305X_SYSC_SIZE 0x100 +#define RT305X_INTC_SIZE 0x100 +#define RT305X_MEMC_SIZE 0x100 +#define RT305X_UART0_SIZE 0x100 +#define RT305X_UART1_SIZE 0x100 +#define RT305X_FLASH1_SIZE (16 * 1024 * 1024) +#define RT305X_FLASH0_SIZE (4 * 1024 * 1024) + +/* SYSC registers */ +#define SYSC_REG_CHIP_NAME0 0x000 /* Chip Name 0 */ +#define SYSC_REG_CHIP_NAME1 0x004 /* Chip Name 1 */ +#define SYSC_REG_CHIP_ID 0x00c /* Chip Identification */ +#define SYSC_REG_SYSTEM_CONFIG 0x010 /* System Configuration */ +#define SYSC_REG_RESET_CTRL 0x034 /* Reset Control*/ +#define SYSC_REG_RESET_STATUS 0x038 /* Reset Status*/ +#define SYSC_REG_IA_ADDRESS 0x310 /* Illegal Access Address */ +#define SYSC_REG_IA_TYPE 0x314 /* Illegal Access Type */ + +#define CHIP_ID_ID_MASK 0xff +#define CHIP_ID_ID_SHIFT 8 +#define CHIP_ID_REV_MASK 0xff + +#define SYSTEM_CONFIG_CPUCLK_SHIFT 18 +#define SYSTEM_CONFIG_CPUCLK_MASK 0x1 +#define SYSTEM_CONFIG_CPUCLK_320 0x0 +#define SYSTEM_CONFIG_CPUCLK_384 0x1 + +#define RT305X_RESET_SYSTEM BIT(0) +#define RT305X_RESET_TIMER BIT(8) +#define RT305X_RESET_INTC BIT(9) +#define RT305X_RESET_MEMC BIT(10) +#define RT305X_RESET_PCM BIT(11) +#define RT305X_RESET_UART0 BIT(12) +#define RT305X_RESET_PIO BIT(13) +#define RT305X_RESET_DMA BIT(14) +#define RT305X_RESET_I2C BIT(16) +#define RT305X_RESET_I2S BIT(17) +#define RT305X_RESET_SPI BIT(18) +#define RT305X_RESET_UART1 BIT(19) +#define RT305X_RESET_WNIC BIT(20) +#define RT305X_RESET_FE BIT(21) +#define RT305X_RESET_OTG BIT(22) +#define RT305X_RESET_ESW BIT(23) + +/* TIMER registers */ + +/* INTC register */ +#define INTC_REG_STATUS0 0x00 +#define INTC_REG_STATUS1 0x04 +#define INTC_REG_TYPE 0x20 +#define INTC_REG_RAW_STATUS 0x30 +#define INTC_REG_ENABLE 0x34 +#define INTC_REG_DISABLE 0x38 + +#define RT305X_INTC_INT_SYSCTL BIT(0) +#define RT305X_INTC_INT_TIMER0 BIT(1) +#define RT305X_INTC_INT_TIMER1 BIT(2) +#define RT305X_INTC_INT_IA BIT(3) +#define RT305X_INTC_INT_PCM BIT(4) +#define RT305X_INTC_INT_UART0 BIT(5) +#define RT305X_INTC_INT_PIO BIT(6) +#define RT305X_INTC_INT_DMA BIT(7) +#define RT305X_INTC_INT_NAND BIT(8) +#define RT305X_INTC_INT_PERFC BIT(9) +#define RT305X_INTC_INT_I2S BIT(10) +#define RT305X_INTC_INT_UART1 BIT(12) +#define RT305X_INTC_INT_ESW BIT(17) +#define RT305X_INTC_INT_OTG BIT(18) +#define RT305X_INTC_INT_GLOBAL BIT(31) + +/* MEMC registers */ +#define MEMC_REG_SDRAM_CFG0 0x00 +#define MEMC_REG_SDRAM_CFG1 0x04 +#define MEMC_REG_FLASH_CFG0 0x08 +#define MEMC_REG_FLASH_CFG1 0x0c +#define MEMC_REG_IA_ADDR 0x10 +#define MEMC_REG_IA_TYPE 0x14 + +#define FLASH_CFG_WIDTH_SHIFT 26 +#define FLASH_CFG_WIDTH_MASK 0x3 +#define FLASH_CFG_WIDTH_8BIT 0x0 +#define FLASH_CFG_WIDTH_16BIT 0x1 +#define FLASH_CFG_WIDTH_32BIT 0x2 + +/* UART registers */ +#define UART_REG_RX 0 +#define UART_REG_TX 1 +#define UART_REG_IER 2 +#define UART_REG_IIR 3 +#define UART_REG_FCR 4 +#define UART_REG_LCR 5 +#define UART_REG_MCR 6 +#define UART_REG_LSR 7 + +#endif /* _RT305X_REGS_H_ */ diff --git a/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/war.h b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/war.h new file mode 100644 index 0000000000..e27cb28648 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/include/asm/mach-ralink/war.h @@ -0,0 +1,25 @@ +/* + * 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 + * for more details. + * + * Copyright (C) 2002, 2004, 2007 by Ralf Baechle <ralf@linux-mips.org> + */ +#ifndef __ASM_MACH_RT288X_WAR_H +#define __ASM_MACH_RT288X_WAR_H + +#define R4600_V1_INDEX_ICACHEOP_WAR 0 +#define R4600_V1_HIT_CACHEOP_WAR 0 +#define R4600_V2_HIT_CACHEOP_WAR 0 +#define R5432_CP0_INTERRUPT_WAR 0 +#define BCM1250_M3_WAR 0 +#define SIBYTE_1956_WAR 0 +#define MIPS4K_ICACHE_REFILL_WAR 0 +#define MIPS_CACHE_SYNC_WAR 0 +#define TX49XX_ICACHE_INDEX_INV_WAR 0 +#define RM9000_CDEX_SMP_WAR 0 +#define ICACHE_REFILLS_WORKAROUND_WAR 0 +#define R10000_LLSC_WAR 0 +#define MIPS34K_MISSED_ITLB_WAR 0 + +#endif /* __ASM_MACH_RT288X_WAR_H */ diff --git a/target/linux/ramips/files/arch/mips/ralink/Kconfig b/target/linux/ramips/files/arch/mips/ralink/Kconfig new file mode 100644 index 0000000000..e180eabd65 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/Kconfig @@ -0,0 +1,51 @@ +if MIPS_RALINK + +choice + prompt "Ralink SoC selection" + default SOC_RT288X + help + Select Ralink MIPS SoC type. + + config RALINK_RT288X + bool "RT288x" + select SOC_RT288X + + config RALINK_RT305X + bool "RT305x" + select SOC_RT305X + +endchoice + +source "arch/mips/ralink/rt288x/Kconfig" +source "arch/mips/ralink/rt305x/Kconfig" + +config SOC_RT288X + bool + select CEVT_R4K + select CSRC_R4K + select DMA_NONCOHERENT + select IRQ_CPU + select ARCH_REQUIRE_GPIOLIB + select SYS_HAS_CPU_MIPS32_R1 + select SYS_HAS_CPU_MIPS32_R2 + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_LITTLE_ENDIAN + select SYS_HAS_EARLY_PRINTK + select HW_HAS_PCI + select MIPS_MACHINE + +config SOC_RT305X + bool + select CEVT_R4K + select CSRC_R4K + select DMA_NONCOHERENT + select IRQ_CPU + select ARCH_REQUIRE_GPIOLIB + select SYS_HAS_CPU_MIPS32_R1 + select SYS_HAS_CPU_MIPS32_R2 + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_LITTLE_ENDIAN + select SYS_HAS_EARLY_PRINTK + select MIPS_MACHINE + +endif diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/Kconfig b/target/linux/ramips/files/arch/mips/ralink/rt288x/Kconfig new file mode 100644 index 0000000000..dd06596261 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/Kconfig @@ -0,0 +1,11 @@ +if RALINK_RT288X + +menu "Ralink RT288x machine selection" + +config RT288X_MACH_GENERIC + bool "Generic RT288x based machine support" + default y + +endmenu + +endif diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/Makefile b/target/linux/ramips/files/arch/mips/ralink/rt288x/Makefile new file mode 100644 index 0000000000..4c22a6dc8a --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/Makefile @@ -0,0 +1,15 @@ +# +# Makefile for the Ralink RT288x SoC specific parts of the kernel +# +# Copyright (C) 2008-2009 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. + +obj-y := prom.o irq.o setup.o rt288x.o platform.o + +obj-$(CONFIG_EARLY_PRINTK) += early_printk.o + +obj-$(CONFIG_RT288X_MACH_GENERIC) += mach-generic.o diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/early_printk.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/early_printk.c new file mode 100644 index 0000000000..9fd7adb543 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/early_printk.c @@ -0,0 +1,30 @@ +/* + * Ralink RT288x SoC early printk support + * + * Copyright (C) 2009 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/io.h> +#include <linux/serial_reg.h> + +#include <asm/addrspace.h> + +#include <asm/mach-ralink/rt288x_regs.h> + +#define UART_READ(r) \ + __raw_readl((void __iomem *)(KSEG1ADDR(RT2880_UART1_BASE) + 4 * (r))) + +#define UART_WRITE(r, v) \ + __raw_writel((v), (void __iomem *)(KSEG1ADDR(RT2880_UART1_BASE) + 4 * (r))) + +void prom_putchar(unsigned char ch) +{ + while (((UART_READ(UART_REG_LSR)) & UART_LSR_THRE) == 0); + UART_WRITE(UART_REG_TX, ch); + while (((UART_READ(UART_REG_LSR)) & UART_LSR_THRE) == 0); +} diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/irq.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/irq.c new file mode 100644 index 0000000000..47a5374009 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/irq.c @@ -0,0 +1,125 @@ +/* + * Ralink RT288x SoC specific interrupt handling + * + * Copyright (C) 2008-2009 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/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> + +#include <asm/irq_cpu.h> +#include <asm/mipsregs.h> + +#include <asm/mach-ralink/rt288x.h> +#include <asm/mach-ralink/rt288x_regs.h> + +static void rt288x_intc_irq_dispatch(void) +{ + u32 pending; + + pending = rt288x_intc_rr(INTC_REG_STATUS0); + + if (pending & RT2880_INTC_INT_TIMER0) + do_IRQ(RT2880_INTC_IRQ_TIMER0); + + else if (pending & RT2880_INTC_INT_TIMER1) + do_IRQ(RT2880_INTC_IRQ_TIMER1); + + else if (pending & RT2880_INTC_INT_UART0) + do_IRQ(RT2880_INTC_IRQ_UART0); + + else if (pending & RT2880_INTC_INT_PCM) + do_IRQ(RT2880_INTC_IRQ_PCM); + + else if (pending & RT2880_INTC_INT_UART1) + do_IRQ(RT2880_INTC_IRQ_UART1); + + /* TODO: handle PIO interrupts as well */ + + else + spurious_interrupt(); +} + +static void rt288x_intc_irq_unmask(unsigned int irq) +{ + irq -= RT288X_INTC_IRQ_BASE; + rt288x_intc_wr((1 << irq), INTC_REG_ENABLE); +} + +static void rt288x_intc_irq_mask(unsigned int irq) +{ + irq -= RT288X_INTC_IRQ_BASE; + rt288x_intc_wr((1 << irq), INTC_REG_DISABLE); +} + +struct irq_chip rt288x_intc_irq_chip = { + .name = "RT288X INTC", + .unmask = rt288x_intc_irq_unmask, + .mask = rt288x_intc_irq_mask, + .mask_ack = rt288x_intc_irq_mask, +}; + +static struct irqaction rt288x_intc_irqaction = { + .handler = no_action, + .name = "cascade [RT288X INTC]", +}; + +static void __init rt288x_intc_irq_init(void) +{ + int i; + + /* disable all interrupts */ + rt288x_intc_wr(~0, INTC_REG_DISABLE); + + /* route all INTC interrupts to MIPS HW0 interrupt */ + rt288x_intc_wr(0, INTC_REG_TYPE); + + for (i = RT288X_INTC_IRQ_BASE; + i < RT288X_INTC_IRQ_BASE + RT288X_INTC_IRQ_COUNT; i++) { + irq_desc[i].status = IRQ_DISABLED; + set_irq_chip_and_handler(i, &rt288x_intc_irq_chip, + handle_level_irq); + } + + setup_irq(RT288X_CPU_IRQ_INTC, &rt288x_intc_irqaction); + + rt288x_intc_wr(RT2880_INTC_INT_GLOBAL, INTC_REG_ENABLE); +} + +asmlinkage void plat_irq_dispatch(void) +{ + unsigned long pending; + + pending = read_c0_status() & read_c0_cause() & ST0_IM; + + if (pending & STATUSF_IP7) + do_IRQ(RT288X_CPU_IRQ_COUNTER); + + else if (pending & STATUSF_IP4) + do_IRQ(RT288X_CPU_IRQ_PCI); + + else if (pending & STATUSF_IP5) + do_IRQ(RT288X_CPU_IRQ_FE); + + else if (pending & STATUSF_IP6) + do_IRQ(RT288X_CPU_IRQ_WNIC); + + else if (pending & STATUSF_IP2) + rt288x_intc_irq_dispatch(); + + else + spurious_interrupt(); +} + +void __init arch_init_irq(void) +{ + mips_cpu_irq_init(); + rt288x_intc_irq_init(); +} diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/mach-generic.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/mach-generic.c new file mode 100644 index 0000000000..dd05e48e19 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/mach-generic.c @@ -0,0 +1,65 @@ +/* + * Generic RT288x machine setup + * + * Copyright (C) 2008 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/init.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> + +#include <asm/mips_machine.h> +#include <asm/mach-ralink/rt288x.h> +#include <asm/mach-ralink/platform.h> + +#ifdef CONFIG_MTD_PARTITIONS +static struct mtd_partition generic_partitions[] = { + { + .name = "u-boot", + .offset = 0, + .size = 0x030000, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "config", + .offset = 0x030000, + .size = 0x010000, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "defconfig", + .offset = 0x040000, + .size = 0x010000, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "kernel", + .offset = 0x050000, + .size = 0x100000, + }, { + .name = "rootfs", +// .offset = MTDPART_OFS_NXTBLK, +// .size = MTDPART_SIZ_FULL, + .offset = 0x150000, + .size = 0x2B0000, + } +}; +#endif /* CONFIG_MTD_PARTITIONS */ + +static struct physmap_flash_data generic_flash_data = { +#ifdef CONFIG_MTD_PARTITIONS + .nr_parts = ARRAY_SIZE(generic_partitions), + .parts = generic_partitions, +#endif +}; + +static void __init rt288x_generic_init(void) +{ + rt288x_register_flash(0, &generic_flash_data); +} + +MIPS_MACHINE(RT288X_MACH_GENERIC, "Generic RT288x board", rt288x_generic_init); diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/platform.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/platform.c new file mode 100644 index 0000000000..a686286968 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/platform.c @@ -0,0 +1,97 @@ +/* + * Ralink RT288x SoC platform device registration + * + * Copyright (C) 2008 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 <asm/addrspace.h> + +#include <asm/mach-ralink/rt288x.h> +#include <asm/mach-ralink/rt288x_regs.h> +#include <asm/mach-ralink/platform.h> + +static struct resource rt288x_flash0_resources[] = { + { + .flags = IORESOURCE_MEM, + .start = KSEG1ADDR(RT2880_FLASH0_BASE), + .end = KSEG1ADDR(RT2880_FLASH0_BASE) + + RT2880_FLASH0_SIZE - 1, + }, +}; + +static struct platform_device rt288x_flash0_device = { + .name = "physmap-flash", + .resource = rt288x_flash0_resources, + .num_resources = ARRAY_SIZE(rt288x_flash0_resources), +}; + +static struct resource rt288x_flash1_resources[] = { + { + .flags = IORESOURCE_MEM, + .start = KSEG1ADDR(RT2880_FLASH1_BASE), + .end = KSEG1ADDR(RT2880_FLASH1_BASE) + + RT2880_FLASH1_SIZE - 1, + }, +}; + +static struct platform_device rt288x_flash1_device = { + .name = "physmap-flash", + .resource = rt288x_flash1_resources, + .num_resources = ARRAY_SIZE(rt288x_flash1_resources), +}; + +static int rt288x_flash_instance __initdata; +void __init rt288x_register_flash(unsigned int id, + struct physmap_flash_data *pdata) +{ + struct platform_device *pdev; + 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; + + 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->dev.platform_data = pdata; + pdev->id = rt288x_flash_instance; + + platform_device_register(pdev); + rt288x_flash_instance++; +} diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/prom.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/prom.c new file mode 100644 index 0000000000..80ef719e0c --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/prom.c @@ -0,0 +1,37 @@ +/* + * Ralink RT288x SoC specific prom routines + * + * Copyright (C) 2008 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/init.h> +#include <linux/io.h> +#include <linux/serial_reg.h> + +#include <asm/bootinfo.h> +#include <asm/addrspace.h> + +#include <asm/mach-ralink/rt288x.h> +#include <asm/mach-ralink/rt288x_regs.h> + +void __init prom_init(void) +{ + printk(KERN_DEBUG "prom: fw_arg0=%08x, fw_arg1=%08x, " + "fw_arg2=%08x, fw_arg3=%08x\n", + (unsigned int)fw_arg0, (unsigned int)fw_arg1, + (unsigned int)fw_arg2, (unsigned int)fw_arg3); + + rt288x_mach_type = RT288X_MACH_GENERIC; +} + +void __init prom_free_prom_memory(void) +{ + /* We do not have to prom memory to free */ +} + diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/rt288x.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/rt288x.c new file mode 100644 index 0000000000..cd429a1c05 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/rt288x.c @@ -0,0 +1,77 @@ +/* + * Ralink RT288x SoC specific setup + * + * Copyright (C) 2008 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/mach-ralink/rt288x.h> +#include <asm/mach-ralink/rt288x_regs.h> + +unsigned char rt288x_sys_type[RT288X_SYS_TYPE_LEN]; + +unsigned long rt288x_cpu_freq; +EXPORT_SYMBOL_GPL(rt288x_cpu_freq); + +unsigned long rt288x_sys_freq; +EXPORT_SYMBOL_GPL(rt288x_sys_freq); + +void __iomem * rt288x_intc_base; +void __iomem * rt288x_sysc_base; +void __iomem * rt288x_memc_base; + +void __init rt288x_detect_sys_type(void) +{ + u32 n0; + u32 n1; + u32 id; + + n0 = rt288x_sysc_rr(SYSC_REG_CHIP_NAME0); + n1 = rt288x_sysc_rr(SYSC_REG_CHIP_NAME1); + id = rt288x_sysc_rr(SYSC_REG_CHIP_ID); + + snprintf(rt288x_sys_type, RT288X_SYS_TYPE_LEN, + "Ralink %c%c%c%c%c%c%c%c id:%u rev:%u", + (char) (n0 & 0xff), (char) ((n0 >> 8) & 0xff), + (char) ((n0 >> 16) & 0xff), (char) ((n0 >> 24) & 0xff), + (char) (n1 & 0xff), (char) ((n1 >> 8) & 0xff), + (char) ((n1 >> 16) & 0xff), (char) ((n1 >> 24) & 0xff), + (id >> CHIP_ID_ID_SHIFT) & CHIP_ID_ID_MASK, + (id & CHIP_ID_REV_MASK)); +} + +void __init rt288x_detect_sys_freq(void) +{ + u32 t; + + t = rt288x_sysc_rr(SYSC_REG_SYSTEM_CONFIG); + t = ((t >> SYSTEM_CONFIG_CPUCLK_SHIFT) & SYSTEM_CONFIG_CPUCLK_MASK); + + switch (t) { + case SYSTEM_CONFIG_CPUCLK_250: + rt288x_cpu_freq = 250000000; + break; + case SYSTEM_CONFIG_CPUCLK_266: + rt288x_cpu_freq = 266666667; + break; + case SYSTEM_CONFIG_CPUCLK_280: + rt288x_cpu_freq = 280000000; + break; + case SYSTEM_CONFIG_CPUCLK_300: + rt288x_cpu_freq = 300000000; + break; + } + + rt288x_sys_freq = rt288x_cpu_freq / 2; +} + diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c new file mode 100644 index 0000000000..186db29d11 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c @@ -0,0 +1,142 @@ +/* + * Ralink RT288x SoC specific setup + * + * Copyright (C) 2008 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/io.h> +#include <linux/serial_8250.h> + +#include <asm/bootinfo.h> +#include <asm/mips_machine.h> +#include <asm/reboot.h> +#include <asm/time.h> + +#include <asm/mach-ralink/rt288x.h> +#include <asm/mach-ralink/rt288x_regs.h> + +#define RT288X_MEM_SIZE_MIN (2 * 1024 * 1024) +#define RT288X_MEM_SIZE_MAX (128 * 1024 * 1024) + +unsigned long rt288x_mach_type; + +static void rt288x_restart(char *command) +{ + rt288x_sysc_wr(RT2880_RESET_SYSTEM, SYSC_REG_RESET_CTRL); + while (1) + if (cpu_wait) + cpu_wait(); +} + +static void rt288x_halt(void) +{ + while (1) + cpu_wait(); +} + +static void __init rt288x_detect_mem_size(void) +{ + unsigned long size; + + for (size = RT288X_MEM_SIZE_MIN; size < RT288X_MEM_SIZE_MAX; + size <<= 1 ) { + if (!memcmp(rt288x_detect_mem_size, + rt288x_detect_mem_size + size, 1024)) + break; + } + + add_memory_region(RT2880_SDRAM_BASE, size, BOOT_MEM_RAM); +} + +#ifdef CONFIG_RT288X_EARLY_SERIAL +static void __init rt288x_early_serial_setup(void) +{ + struct uart_port p; + int err; + + memset(&p, 0, sizeof(p)); + p.flags = UPF_SKIP_TEST; + p.iotype = UPIO_AU; + p.uartclk = rt288x_sys_freq; + p.regshift = 2; + p.type = PORT_16550A; + + p.mapbase = RT2880_UART0_BASE; + p.membase = ioremap_nocache(p.mapbase, RT2880_UART0_SIZE); + p.line = 0; + p.irq = RT2880_INTC_IRQ_UART0; + + err = early_serial_setup(&p); + if (err) + printk(KERN_ERR "RT288x: early UART0 registration failed %d\n", + err); + + p.mapbase = RT2880_UART1_BASE; + p.membase = ioremap_nocache(p.mapbase, RT2880_UART1_SIZE); + p.line = 1; + p.irq = RT2880_INTC_IRQ_UART1; + + err = early_serial_setup(&p); + if (err) + printk(KERN_ERR "RT288x: early UART1 registration failed %d\n", + err); +} +#else +static inline void rt288x_early_serial_setup(void) {}; +#endif /* CONFIG_RT288X_EARLY_SERIAL */ + +const char *get_system_type(void) +{ + return rt288x_sys_type; +} + +unsigned int __cpuinit get_c0_compare_irq(void) +{ + return CP0_LEGACY_COMPARE_IRQ; +} + +void __init plat_mem_setup(void) +{ + set_io_port_base(KSEG1); + + rt288x_intc_base = ioremap_nocache(RT2880_INTC_BASE, RT2880_INTC_SIZE); + rt288x_sysc_base = ioremap_nocache(RT2880_SYSC_BASE, RT2880_SYSC_SIZE); + rt288x_memc_base = ioremap_nocache(RT2880_MEMC_BASE, RT2880_MEMC_SIZE); + + rt288x_detect_mem_size(); + rt288x_detect_sys_type(); + rt288x_detect_sys_freq(); + + printk(KERN_INFO "%s running at %lu.%02lu MHz\n", get_system_type(), + rt288x_cpu_freq / 1000000, + (rt288x_cpu_freq % 1000000) * 100 / 1000000); + + _machine_restart = rt288x_restart; + _machine_halt = rt288x_halt; + pm_power_off = rt288x_halt; + + rt288x_early_serial_setup(); +} + +void __init plat_time_init(void) +{ + mips_hpt_frequency = rt288x_cpu_freq / 2; +} + +static int __init rt288x_machine_setup(void) +{ + mips_machine_setup(rt288x_mach_type); + + return 0; +} + +arch_initcall(rt288x_machine_setup); diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/Kconfig b/target/linux/ramips/files/arch/mips/ralink/rt305x/Kconfig new file mode 100644 index 0000000000..3b5e15e1b8 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/Kconfig @@ -0,0 +1,15 @@ +if RALINK_RT305X + +menu "Ralink RT350x machine selection" + +config RT305X_MACH_GENERIC + bool "Generic RT350x based machine support" + default y + +config RT305X_MACH_WHR_G300N + bool "Buffalo WHR-G300N support" + default y + +endmenu + +endif diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/Makefile b/target/linux/ramips/files/arch/mips/ralink/rt305x/Makefile new file mode 100644 index 0000000000..981498e858 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/Makefile @@ -0,0 +1,15 @@ +# +# Makefile for the Ralink RT305x SoC specific parts of the kernel +# +# Copyright (C) 2009 Gabor Juhos <juhosg@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. + +obj-y := prom.o irq.o setup.o devices.o rt305x.o + +obj-$(CONFIG_EARLY_PRINTK) += early_printk.o + +obj-$(CONFIG_RT305X_MACH_GENERIC) += mach-generic.o +obj-$(CONFIG_RT305X_MACH_WHR_G300N) += mach-whr-g300n.o diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.c new file mode 100644 index 0000000000..5dd1022b97 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.c @@ -0,0 +1,96 @@ +/* + * Ralink RT305x SoC platform device registration + * + * Copyright (C) 2009 Gabor Juhos <juhosg@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 <asm/addrspace.h> + +#include <asm/mach-ralink/rt305x.h> +#include <asm/mach-ralink/rt305x_regs.h> +#include "devices.h" + +static struct resource rt305x_flash0_resources[] = { + { + .flags = IORESOURCE_MEM, + .start = KSEG1ADDR(RT305X_FLASH0_BASE), + .end = KSEG1ADDR(RT305X_FLASH0_BASE) + + RT305X_FLASH0_SIZE - 1, + }, +}; + +static struct platform_device rt305x_flash0_device = { + .name = "physmap-flash", + .resource = rt305x_flash0_resources, + .num_resources = ARRAY_SIZE(rt305x_flash0_resources), +}; + +static struct resource rt305x_flash1_resources[] = { + { + .flags = IORESOURCE_MEM, + .start = KSEG1ADDR(RT305X_FLASH1_BASE), + .end = KSEG1ADDR(RT305X_FLASH1_BASE) + + RT305X_FLASH1_SIZE - 1, + }, +}; + +static struct platform_device rt305x_flash1_device = { + .name = "physmap-flash", + .resource = rt305x_flash1_resources, + .num_resources = ARRAY_SIZE(rt305x_flash1_resources), +}; + +static int rt305x_flash_instance __initdata; +void __init rt305x_register_flash(unsigned int id, + struct physmap_flash_data *pdata) +{ + struct platform_device *pdev; + u32 t; + int reg; + + switch (id) { + case 0: + pdev = &rt305x_flash0_device; + reg = MEMC_REG_FLASH_CFG0; + break; + case 1: + pdev = &rt305x_flash1_device; + reg = MEMC_REG_FLASH_CFG1; + break; + default: + return; + } + + t = rt305x_memc_rr(reg); + t = (t >> FLASH_CFG_WIDTH_SHIFT) & FLASH_CFG_WIDTH_MASK; + + 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 "RT305x: flash bank%u witdh is invalid\n", id); + return; + } + + pdev->dev.platform_data = pdata; + pdev->id = rt305x_flash_instance; + + platform_device_register(pdev); + rt305x_flash_instance++; +} diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.h b/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.h new file mode 100644 index 0000000000..0a90b3a4e1 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/devices.h @@ -0,0 +1,20 @@ +/* + * Ralink RT305x SoC specific platform device definitions + * + * Copyright (C) 2009 Gabor Juhos <juhosg@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. + */ + +#ifndef __RT305X_DEVICES_H +#define __RT305X_DEVICES_H + +struct physmap_flash_data; + +extern void rt305x_register_flash(unsigned int id, + struct physmap_flash_data *pdata) __init; + +#endif /* __RT305X_DEVICES_H */ + diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/early_printk.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/early_printk.c new file mode 100644 index 0000000000..602df863ef --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/early_printk.c @@ -0,0 +1,29 @@ +/* + * Ralink RT305x SoC early printk support + * + * Copyright (C) 2009 Gabor Juhos <juhosg@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/io.h> +#include <linux/serial_reg.h> + +#include <asm/addrspace.h> + +#include <asm/mach-ralink/rt305x_regs.h> + +#define UART_READ(r) \ + __raw_readl((void __iomem *)(KSEG1ADDR(RT305X_UART1_BASE) + 4 * (r))) + +#define UART_WRITE(r, v) \ + __raw_writel((v), (void __iomem *)(KSEG1ADDR(RT305X_UART1_BASE) + 4 * (r))) + +void prom_putchar(unsigned char ch) +{ + while (((UART_READ(UART_REG_LSR)) & UART_LSR_THRE) == 0); + UART_WRITE(UART_REG_TX, ch); + while (((UART_READ(UART_REG_LSR)) & UART_LSR_THRE) == 0); +} diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/irq.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/irq.c new file mode 100644 index 0000000000..168b2390b9 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/irq.c @@ -0,0 +1,118 @@ +/* + * Ralink RT305x SoC specific interrupt handling + * + * Copyright (C) 2009 Gabor Juhos <juhosg@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/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> + +#include <asm/irq_cpu.h> +#include <asm/mipsregs.h> + +#include <asm/mach-ralink/rt305x.h> +#include <asm/mach-ralink/rt305x_regs.h> + +static void rt305x_intc_irq_dispatch(void) +{ + u32 pending; + + pending = rt305x_intc_rr(INTC_REG_STATUS0); + + if (pending & RT305X_INTC_INT_TIMER0) + do_IRQ(RT305X_INTC_IRQ_TIMER0); + + else if (pending & RT305X_INTC_INT_TIMER1) + do_IRQ(RT305X_INTC_IRQ_TIMER1); + + else if (pending & RT305X_INTC_INT_UART0) + do_IRQ(RT305X_INTC_IRQ_UART0); + + else if (pending & RT305X_INTC_INT_UART1) + do_IRQ(RT305X_INTC_IRQ_UART1); + + /* TODO: handle PIO interrupts as well */ + + else + spurious_interrupt(); +} + +static void rt305x_intc_irq_unmask(unsigned int irq) +{ + irq -= RT305X_INTC_IRQ_BASE; + rt305x_intc_wr((1 << irq), INTC_REG_ENABLE); +} + +static void rt305x_intc_irq_mask(unsigned int irq) +{ + irq -= RT305X_INTC_IRQ_BASE; + rt305x_intc_wr((1 << irq), INTC_REG_DISABLE); +} + +struct irq_chip rt305x_intc_irq_chip = { + .name = "RT305X INTC", + .unmask = rt305x_intc_irq_unmask, + .mask = rt305x_intc_irq_mask, + .mask_ack = rt305x_intc_irq_mask, +}; + +static struct irqaction rt305x_intc_irqaction = { + .handler = no_action, + .name = "cascade [RT305X INTC]", +}; + +static void __init rt305x_intc_irq_init(void) +{ + int i; + + /* disable all interrupts */ + rt305x_intc_wr(~0, INTC_REG_DISABLE); + + /* route all INTC interrupts to MIPS HW0 interrupt */ + rt305x_intc_wr(0, INTC_REG_TYPE); + + for (i = RT305X_INTC_IRQ_BASE; + i < RT305X_INTC_IRQ_BASE + RT305X_INTC_IRQ_COUNT; i++) { + set_irq_chip_and_handler(i, &rt305x_intc_irq_chip, + handle_level_irq); + } + + setup_irq(RT305X_CPU_IRQ_INTC, &rt305x_intc_irqaction); + + /* enable interrupt masking */ + rt305x_intc_wr(RT305X_INTC_INT_GLOBAL, INTC_REG_ENABLE); +} + +asmlinkage void plat_irq_dispatch(void) +{ + unsigned long pending; + + pending = read_c0_status() & read_c0_cause() & ST0_IM; + + if (pending & STATUSF_IP7) + do_IRQ(RT305X_CPU_IRQ_COUNTER); + + else if (pending & STATUSF_IP5) + do_IRQ(RT305X_CPU_IRQ_FE); + + else if (pending & STATUSF_IP6) + do_IRQ(RT305X_CPU_IRQ_WNIC); + + else if (pending & STATUSF_IP2) + rt305x_intc_irq_dispatch(); + + else + spurious_interrupt(); +} + +void __init arch_init_irq(void) +{ + mips_cpu_irq_init(); + rt305x_intc_irq_init(); +} diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/mach-generic.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/mach-generic.c new file mode 100644 index 0000000000..3b2b70298d --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/mach-generic.c @@ -0,0 +1,21 @@ +/* + * Generic RT305x machine setup + * + * Copyright (C) 2009 Gabor Juhos <juhosg@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/init.h> + +#include <asm/mips_machine.h> + +#include "machine.h" + +static void __init rt305x_generic_init(void) +{ +} + +MIPS_MACHINE(RT305X_MACH_GENERIC, "Generic RT305x board", rt305x_generic_init); diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/mach-whr-g300n.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/mach-whr-g300n.c new file mode 100644 index 0000000000..b1f6dafabc --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/mach-whr-g300n.c @@ -0,0 +1,71 @@ +/* + * Generic RT305x machine setup + * + * Copyright (C) 2009 Gabor Juhos <juhosg@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/init.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> + +#include <asm/mips_machine.h> + +#include "machine.h" +#include "devices.h" + +#ifdef CONFIG_MTD_PARTITIONS +static struct mtd_partition whr_g300n_partitions[] = { + { + .name = "u-boot", + .offset = 0, + .size = 0x030000, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "u-boot-env", + .offset = 0x030000, + .size = 0x010000, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "factory", + .offset = 0x040000, + .size = 0x010000, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "kernel", + .offset = 0x050000, + .size = 0x090000, + }, { + .name = "rootfs", + .offset = 0x140000, + .size = 0x2B0000, + }, { + .name = "user", + .offset = 0x3f0000, + .size = 0x010000, + }, { + .name = "openwrt", + .offset = 0x050000, + .size = 0x3a0000, + } +}; +#endif /* CONFIG_MTD_PARTITIONS */ + +static struct physmap_flash_data whr_g300n_flash_data = { +#ifdef CONFIG_MTD_PARTITIONS + .nr_parts = ARRAY_SIZE(whr_g300n_partitions), + .parts = whr_g300n_partitions, +#endif +}; + +static void __init whr_g300n_init(void) +{ + rt305x_register_flash(0, &whr_g300n_flash_data); +} + +MIPS_MACHINE(RT305X_MACH_WHR_G300N, "Buffalo WHR-G300N", whr_g300n_init); diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/machine.h b/target/linux/ramips/files/arch/mips/ralink/rt305x/machine.h new file mode 100644 index 0000000000..4ce0fdeabb --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/machine.h @@ -0,0 +1,16 @@ +/* + * Ralink RT305x SoC specific setup + * + * Copyright (C) 2009 Gabor Juhos <juhosg@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. + */ + +enum rt305x_mach_type { + RT305X_MACH_GENERIC, + RT305X_MACH_WHR_G300N, /* Buffalo WHR-G300N */ +}; + +extern enum rt305x_mach_type rt305x_mach; diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/prom.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/prom.c new file mode 100644 index 0000000000..756f237eab --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/prom.c @@ -0,0 +1,147 @@ +/* + * Ralink RT305x SoC specific prom routines + * + * Copyright (C) 2009 Gabor Juhos <juhosg@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/init.h> + +#include <asm/bootinfo.h> + +#include <asm/mach-ralink/rt305x.h> +#include <asm/mach-ralink/rt305x_regs.h> + +#include "machine.h" + +struct board_rec { + char *name; + enum rt305x_mach_type mach_type; +}; + +static int rt305x_prom_argc __initdata; +static char **rt305x_prom_argv __initdata; +static char **rt305x_prom_envp __initdata; + +static struct board_rec boards[] __initdata = { + { + .name = "WHR-G300N", + .mach_type = RT305X_MACH_WHR_G300N, + } +}; + +static inline void *to_ram_addr(void *addr) +{ + u32 base; + + base = KSEG0ADDR(RT305X_SDRAM_BASE); + if (((u32) addr > base) && + ((u32) addr < (base + RT305X_MEM_SIZE_MAX))) + return addr; + + base = KSEG1ADDR(RT305X_SDRAM_BASE); + if (((u32) addr > base) && + ((u32) addr < (base + RT305X_MEM_SIZE_MAX))) + return addr; + + /* some U-Boot variants uses physical addresses */ + base = RT305X_SDRAM_BASE; + if (((u32) addr > base) && + ((u32) addr < (base + RT305X_MEM_SIZE_MAX))) + return (void *)KSEG0ADDR(addr); + + return NULL; +} + +static __init char *rt305x_prom_getargv(const char *name) +{ + int len = strlen(name); + int i; + + if (!rt305x_prom_argv) { + printk(KERN_DEBUG "argv=%p is invalid, skipping\n", + rt305x_prom_argv); + return NULL; + } + + for (i = 0; i < rt305x_prom_argc; i++) { + char *argv = to_ram_addr(rt305x_prom_argv[i]); + + if (!argv) { + printk(KERN_DEBUG + "argv[%d]=%p is invalid, skipping\n", + i, rt305x_prom_argv[i]); + continue; + } + + printk(KERN_DEBUG "argv[i]: %s\n", argv); + if (strncmp(name, argv, len) == 0 && (argv)[len] == '=') + return argv + len + 1; + } + + return NULL; +} + +static __init char *rt305x_prom_getenv(const char *envname) +{ + int len = strlen(envname); + char **env; + char *p; + + env = rt305x_prom_envp; + if (!env) { + printk(KERN_DEBUG "envp=%p is not in RAM, skipping\n", + rt305x_prom_envp); + return NULL; + } + + for (p = to_ram_addr(*env); p; env++) { + printk(KERN_DEBUG "env: %s\n", *env); + if (strncmp(envname, p, len) == 0 && (p)[len] == '=') + return p + len + 1; + } + + return NULL; +} + +static __init void find_board_byname(char *name) +{ + int i; + + rt305x_mach = RT305X_MACH_GENERIC; + + for (i = 0; i < ARRAY_SIZE(boards); i++) + if (strcmp(name, boards[i].name) == 0) { + rt305x_mach = boards[i].mach_type; + break; + } +} + +void __init prom_init(void) +{ + char *p; + + printk(KERN_DEBUG + "prom: fw_arg0=%08x, fw_arg1=%08x, fw_arg2=%08x, fw_arg3=%08x\n", + (unsigned int)fw_arg0, (unsigned int)fw_arg1, + (unsigned int)fw_arg2, (unsigned int)fw_arg3); + + rt305x_prom_argc = fw_arg0; + rt305x_prom_argv = to_ram_addr((void *)fw_arg1); + rt305x_prom_envp = to_ram_addr((void *)fw_arg2); + + p = rt305x_prom_getargv("board"); + if (!p) + p = rt305x_prom_getenv("board"); + if (p) + find_board_byname(p); +} + +void __init prom_free_prom_memory(void) +{ + /* We do not have to prom memory to free */ +} diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/rt305x.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/rt305x.c new file mode 100644 index 0000000000..9d940a2f54 --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/rt305x.c @@ -0,0 +1,70 @@ +/* + * Ralink RT305x SoC specific setup + * + * Copyright (C) 2008-2009 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/mach-ralink/rt305x.h> +#include <asm/mach-ralink/rt305x_regs.h> + +unsigned char rt305x_sys_type[RT305X_SYS_TYPE_LEN]; + +unsigned long rt305x_cpu_freq; +EXPORT_SYMBOL_GPL(rt305x_cpu_freq); + +unsigned long rt305x_sys_freq; +EXPORT_SYMBOL_GPL(rt305x_sys_freq); + +void __iomem * rt305x_intc_base; +void __iomem * rt305x_sysc_base; +void __iomem * rt305x_memc_base; + +void __init rt305x_detect_sys_type(void) +{ + u32 n0; + u32 n1; + u32 id; + + n0 = rt305x_sysc_rr(SYSC_REG_CHIP_NAME0); + n1 = rt305x_sysc_rr(SYSC_REG_CHIP_NAME1); + id = rt305x_sysc_rr(SYSC_REG_CHIP_ID); + + snprintf(rt305x_sys_type, RT305X_SYS_TYPE_LEN, + "Ralink %c%c%c%c%c%c%c%c id:%u rev:%u", + (char) (n0 & 0xff), (char) ((n0 >> 8) & 0xff), + (char) ((n0 >> 16) & 0xff), (char) ((n0 >> 24) & 0xff), + (char) (n1 & 0xff), (char) ((n1 >> 8) & 0xff), + (char) ((n1 >> 16) & 0xff), (char) ((n1 >> 24) & 0xff), + (id >> CHIP_ID_ID_SHIFT) & CHIP_ID_ID_MASK, + (id & CHIP_ID_REV_MASK)); +} + +void __init rt305x_detect_sys_freq(void) +{ + u32 t; + + t = rt305x_sysc_rr(SYSC_REG_SYSTEM_CONFIG); + t = ((t >> SYSTEM_CONFIG_CPUCLK_SHIFT) & SYSTEM_CONFIG_CPUCLK_MASK); + + switch (t) { + case SYSTEM_CONFIG_CPUCLK_320: + rt305x_cpu_freq = 320000000; + break; + case SYSTEM_CONFIG_CPUCLK_384: + rt305x_cpu_freq = 384000000; + break; + } + + rt305x_sys_freq = rt305x_cpu_freq / 3; +} diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/setup.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/setup.c new file mode 100644 index 0000000000..4af495b78b --- /dev/null +++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/setup.c @@ -0,0 +1,137 @@ +/* + * Ralink RT305x SoC specific setup + * + * Copyright (C) 2008 Gabor Juhos <juhosg@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/io.h> +#include <linux/serial_8250.h> + +#include <asm/bootinfo.h> +#include <asm/mips_machine.h> +#include <asm/reboot.h> +#include <asm/time.h> + +#include <asm/mach-ralink/rt305x.h> +#include <asm/mach-ralink/rt305x_regs.h> + +#include "machine.h" + +enum rt305x_mach_type rt305x_mach; + +static void rt305x_restart(char *command) +{ + rt305x_sysc_wr(RT305X_RESET_SYSTEM, SYSC_REG_RESET_CTRL); + while (1) + if (cpu_wait) + cpu_wait(); +} + +static void rt305x_halt(void) +{ + while (1) + if (cpu_wait) + cpu_wait(); +} + +static void __init rt305x_detect_mem_size(void) +{ + unsigned long size; + + for (size = RT305X_MEM_SIZE_MIN; size < RT305X_MEM_SIZE_MAX; + size <<= 1 ) { + if (!memcmp(rt305x_detect_mem_size, + rt305x_detect_mem_size + size, 1024)) + break; + } + + add_memory_region(RT305X_SDRAM_BASE, size, BOOT_MEM_RAM); +} + +static void __init rt305x_early_serial_setup(void) +{ + struct uart_port p; + int err; + + memset(&p, 0, sizeof(p)); + p.flags = UPF_SKIP_TEST; + p.iotype = UPIO_AU; + p.uartclk = rt305x_sys_freq; + p.regshift = 2; + p.type = PORT_16550A; + + p.mapbase = RT305X_UART0_BASE; + p.membase = ioremap_nocache(p.mapbase, RT305X_UART0_SIZE); + p.line = 0; + p.irq = RT305X_INTC_IRQ_UART0; + + err = early_serial_setup(&p); + if (err) + printk(KERN_ERR "RT305x: early UART0 registration failed %d\n", + err); + + p.mapbase = RT305X_UART1_BASE; + p.membase = ioremap_nocache(p.mapbase, RT305X_UART1_SIZE); + p.line = 1; + p.irq = RT305X_INTC_IRQ_UART1; + + err = early_serial_setup(&p); + if (err) + printk(KERN_ERR "RT305x: early UART1 registration failed %d\n", + err); +} + +const char *get_system_type(void) +{ + return rt305x_sys_type; +} + +unsigned int __cpuinit get_c0_compare_irq(void) +{ + return CP0_LEGACY_COMPARE_IRQ; +} + +void __init plat_mem_setup(void) +{ + set_io_port_base(KSEG1); + + rt305x_intc_base = ioremap_nocache(RT305X_INTC_BASE, PAGE_SIZE); + rt305x_sysc_base = ioremap_nocache(RT305X_SYSC_BASE, PAGE_SIZE); + rt305x_memc_base = ioremap_nocache(RT305X_MEMC_BASE, PAGE_SIZE); + + rt305x_detect_mem_size(); + rt305x_detect_sys_type(); + rt305x_detect_sys_freq(); + + printk(KERN_INFO "%s running at %lu.%02lu MHz\n", get_system_type(), + rt305x_cpu_freq / 1000000, + (rt305x_cpu_freq % 1000000) * 100 / 1000000); + + _machine_restart = rt305x_restart; + _machine_halt = rt305x_halt; + pm_power_off = rt305x_halt; + + rt305x_early_serial_setup(); +} + +void __init plat_time_init(void) +{ + mips_hpt_frequency = rt305x_cpu_freq / 2; +} + +static int __init rt305x_machine_setup(void) +{ + mips_machine_setup(rt305x_mach); + + return 0; +} + +arch_initcall(rt305x_machine_setup); |