From 209fecd1b8e65b8046efbbc8314d449e53c4c6b6 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Thu, 14 Jan 2010 15:29:17 +0900 Subject: ARM: S5P6440: Add new CPU initialization support This patch adds Samsung's S5P6440 CPU support. Signed-off-by: Kukjin Kim Signed-off-by: Ben Dooks --- arch/arm/mach-s5p6440/cpu.c | 114 +++++++++++++++++++++++ arch/arm/mach-s5p6440/include/mach/debug-macro.S | 37 ++++++++ arch/arm/mach-s5p6440/include/mach/entry-macro.S | 16 ++++ arch/arm/mach-s5p6440/include/mach/gpio-core.h | 19 ++++ arch/arm/mach-s5p6440/include/mach/gpio.h | 80 ++++++++++++++++ arch/arm/mach-s5p6440/include/mach/hardware.h | 18 ++++ arch/arm/mach-s5p6440/include/mach/map.h | 94 +++++++++++++++++++ arch/arm/mach-s5p6440/include/mach/memory.h | 19 ++++ arch/arm/mach-s5p6440/include/mach/system.h | 26 ++++++ arch/arm/mach-s5p6440/include/mach/uncompress.h | 24 +++++ 10 files changed, 447 insertions(+) create mode 100644 arch/arm/mach-s5p6440/cpu.c create mode 100644 arch/arm/mach-s5p6440/include/mach/debug-macro.S create mode 100644 arch/arm/mach-s5p6440/include/mach/entry-macro.S create mode 100644 arch/arm/mach-s5p6440/include/mach/gpio-core.h create mode 100644 arch/arm/mach-s5p6440/include/mach/gpio.h create mode 100644 arch/arm/mach-s5p6440/include/mach/hardware.h create mode 100644 arch/arm/mach-s5p6440/include/mach/map.h create mode 100644 arch/arm/mach-s5p6440/include/mach/memory.h create mode 100644 arch/arm/mach-s5p6440/include/mach/system.h create mode 100644 arch/arm/mach-s5p6440/include/mach/uncompress.h (limited to 'arch/arm/mach-s5p6440') diff --git a/arch/arm/mach-s5p6440/cpu.c b/arch/arm/mach-s5p6440/cpu.c new file mode 100644 index 000000000000..1794131aeacb --- /dev/null +++ b/arch/arm/mach-s5p6440/cpu.c @@ -0,0 +1,114 @@ +/* linux/arch/arm/mach-s5p6440/cpu.c + * + * Copyright (c) 2009 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include + +#include +#include +#include + +#include +#include + +#include +#include +#include +#include + +static void s5p6440_idle(void) +{ + unsigned long val; + + if (!need_resched()) { + val = __raw_readl(S5P_PWR_CFG); + val &= ~(0x3<<5); + val |= (0x1<<5); + __raw_writel(val, S5P_PWR_CFG); + + cpu_do_idle(); + } + local_irq_enable(); +} + +/* s5p6440_map_io + * + * register the standard cpu IO areas +*/ + +void __init s5p6440_map_io(void) +{ + /* initialize any device information early */ +} + +void __init s5p6440_init_clocks(int xtal) +{ + printk(KERN_DEBUG "%s: initializing clocks\n", __func__); + + s3c24xx_register_baseclocks(xtal); + s5p_register_clocks(xtal); + s5p6440_register_clocks(); + s5p6440_setup_clocks(); +} + +void __init s5p6440_init_irq(void) +{ + /* S5P6440 supports only 2 VIC */ + u32 vic[2]; + + /* + * VIC0 is missing IRQ_VIC0[3, 4, 8, 10, (12-22)] + * VIC1 is missing IRQ VIC1[1, 3, 4, 10, 11, 12, 14, 15, 22] + */ + vic[0] = 0xff800ae7; + vic[1] = 0xffbf23e5; + + s5p_init_irq(vic, ARRAY_SIZE(vic)); +} + +static struct sysdev_class s5p6440_sysclass = { + .name = "s5p6440-core", +}; + +static struct sys_device s5p6440_sysdev = { + .cls = &s5p6440_sysclass, +}; + +static int __init s5p6440_core_init(void) +{ + return sysdev_class_register(&s5p6440_sysclass); +} + +core_initcall(s5p6440_core_init); + +int __init s5p6440_init(void) +{ + printk(KERN_INFO "S5P6440: Initializing architecture\n"); + + /* set idle function */ + pm_idle = s5p6440_idle; + + return sysdev_register(&s5p6440_sysdev); +} diff --git a/arch/arm/mach-s5p6440/include/mach/debug-macro.S b/arch/arm/mach-s5p6440/include/mach/debug-macro.S new file mode 100644 index 000000000000..f3a5d1635be5 --- /dev/null +++ b/arch/arm/mach-s5p6440/include/mach/debug-macro.S @@ -0,0 +1,37 @@ +/* linux/arch/arm/mach-s5p6440/include/mach/debug-macro.S + * + * Copyright (c) 2009 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * 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. +*/ + +/* pull in the relevant register and map files. */ + +#include +#include + + /* note, for the boot process to work we have to keep the UART + * virtual address aligned to an 1MiB boundary for the L1 + * mapping the head code makes. We keep the UART virtual address + * aligned and add in the offset when we load the value here. + */ + + .macro addruart, rx + mrc p15, 0, \rx, c1, c0 + tst \rx, #1 + ldreq \rx, = S5P_PA_UART + ldrne \rx, = (S5P_VA_UART + S5P_PA_UART & 0xfffff) +#if CONFIG_DEBUG_S3C_UART != 0 + add \rx, \rx, #(0x400 * CONFIG_DEBUG_S3C_UART) +#endif + .endm + +/* include the reset of the code which will do the work, we're only + * compiling for a single cpu processor type so the default of s3c2440 + * will be fine with us. + */ + +#include diff --git a/arch/arm/mach-s5p6440/include/mach/entry-macro.S b/arch/arm/mach-s5p6440/include/mach/entry-macro.S new file mode 100644 index 000000000000..e65f1b967262 --- /dev/null +++ b/arch/arm/mach-s5p6440/include/mach/entry-macro.S @@ -0,0 +1,16 @@ +/* linux/arch/arm/mach-s5p6440/include/mach/entry-macro.S + * + * Copyright (c) 2009 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * Low-level IRQ helper macros for the Samsung S5P6440 + * + * 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 +#include + +#include diff --git a/arch/arm/mach-s5p6440/include/mach/gpio-core.h b/arch/arm/mach-s5p6440/include/mach/gpio-core.h new file mode 100644 index 000000000000..ff7fb3094188 --- /dev/null +++ b/arch/arm/mach-s5p6440/include/mach/gpio-core.h @@ -0,0 +1,19 @@ +/* linux/arch/arm/mach-s5p6440/include/mach/gpio-core.h + * + * Copyright (c) 2009 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * S5P6440 - GPIO core support + * + * 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_ARCH_GPIO_CORE_H +#define __ASM_ARCH_GPIO_CORE_H __FILE__ + +/* currently we just include the platform support */ +#include + +#endif /* __ASM_ARCH_GPIO_CORE_H */ diff --git a/arch/arm/mach-s5p6440/include/mach/gpio.h b/arch/arm/mach-s5p6440/include/mach/gpio.h new file mode 100644 index 000000000000..21783834f2a2 --- /dev/null +++ b/arch/arm/mach-s5p6440/include/mach/gpio.h @@ -0,0 +1,80 @@ +/* linux/arch/arm/mach-s5p6440/include/mach/gpio.h + * + * Copyright (c) 2009 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * S5P6440 - GPIO lib support + * + * 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_ARCH_GPIO_H +#define __ASM_ARCH_GPIO_H __FILE__ + +#define gpio_get_value __gpio_get_value +#define gpio_set_value __gpio_set_value +#define gpio_cansleep __gpio_cansleep +#define gpio_to_irq __gpio_to_irq + +/* GPIO bank sizes */ +#define S5P6440_GPIO_A_NR (6) +#define S5P6440_GPIO_B_NR (7) +#define S5P6440_GPIO_C_NR (8) +#define S5P6440_GPIO_F_NR (2) +#define S5P6440_GPIO_G_NR (7) +#define S5P6440_GPIO_H_NR (10) +#define S5P6440_GPIO_I_NR (16) +#define S5P6440_GPIO_J_NR (12) +#define S5P6440_GPIO_N_NR (16) +#define S5P6440_GPIO_P_NR (8) +#define S5P6440_GPIO_R_NR (15) + +/* GPIO bank numbers */ + +/* CONFIG_S3C_GPIO_SPACE allows the user to select extra + * space for debugging purposes so that any accidental + * change from one gpio bank to another can be caught. +*/ +#define S5P6440_GPIO_NEXT(__gpio) \ + ((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 1) + +enum s5p_gpio_number { + S5P6440_GPIO_A_START = 0, + S5P6440_GPIO_B_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_A), + S5P6440_GPIO_C_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_B), + S5P6440_GPIO_F_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_C), + S5P6440_GPIO_G_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_F), + S5P6440_GPIO_H_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_G), + S5P6440_GPIO_I_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_H), + S5P6440_GPIO_J_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_I), + S5P6440_GPIO_N_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_J), + S5P6440_GPIO_P_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_N), + S5P6440_GPIO_R_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_P), +}; + +/* S5P6440 GPIO number definitions. */ +#define S5P6440_GPA(_nr) (S5P6440_GPIO_A_START + (_nr)) +#define S5P6440_GPB(_nr) (S5P6440_GPIO_B_START + (_nr)) +#define S5P6440_GPC(_nr) (S5P6440_GPIO_C_START + (_nr)) +#define S5P6440_GPF(_nr) (S5P6440_GPIO_F_START + (_nr)) +#define S5P6440_GPG(_nr) (S5P6440_GPIO_G_START + (_nr)) +#define S5P6440_GPH(_nr) (S5P6440_GPIO_H_START + (_nr)) +#define S5P6440_GPI(_nr) (S5P6440_GPIO_I_START + (_nr)) +#define S5P6440_GPJ(_nr) (S5P6440_GPIO_J_START + (_nr)) +#define S5P6440_GPN(_nr) (S5P6440_GPIO_N_START + (_nr)) +#define S5P6440_GPP(_nr) (S5P6440_GPIO_P_START + (_nr)) +#define S5P6440_GPR(_nr) (S5P6440_GPIO_R_START + (_nr)) + +/* the end of the S5P6440 specific gpios */ +#define S5P6440_GPIO_END (S5P6440_GPR(S5P6440_GPIO_R_NR) + 1) +#define S3C_GPIO_END S5P6440_GPIO_END + +/* define the number of gpios we need to the one after the GPR() range */ +#define ARCH_NR_GPIOS (S5P6440_GPR(S5P6440_GPIO_R_NR) + \ + CONFIG_SAMSUNG_GPIO_EXTRA + 1) + +#include + +#endif /* __ASM_ARCH_GPIO_H */ diff --git a/arch/arm/mach-s5p6440/include/mach/hardware.h b/arch/arm/mach-s5p6440/include/mach/hardware.h new file mode 100644 index 000000000000..be8b26e875db --- /dev/null +++ b/arch/arm/mach-s5p6440/include/mach/hardware.h @@ -0,0 +1,18 @@ +/* linux/arch/arm/mach-s5p6440/include/mach/hardware.h + * + * Copyright (c) 2009 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * S5P6440 - Hardware support + * + * 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_ARCH_HARDWARE_H +#define __ASM_ARCH_HARDWARE_H __FILE__ + +/* currently nothing here, placeholder */ + +#endif /* __ASM_ARCH_HARDWARE_H */ diff --git a/arch/arm/mach-s5p6440/include/mach/map.h b/arch/arm/mach-s5p6440/include/mach/map.h new file mode 100644 index 000000000000..b3703293cc3b --- /dev/null +++ b/arch/arm/mach-s5p6440/include/mach/map.h @@ -0,0 +1,94 @@ +/* linux/arch/arm/mach-s5p6440/include/mach/map.h + * + * Copyright (c) 2009 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * S5P6440 - Memory map definitions + * + * 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_ARCH_MAP_H +#define __ASM_ARCH_MAP_H __FILE__ + +#include + +/* SYSCON */ +#define S5P6440_PA_SYSCON (0xE0100000) +#define S5P_PA_SYSCON S5P6440_PA_SYSCON +#define S5P_VA_SYSCON S3C_VA_SYS + +#define S5P6440_PA_CLK (S5P6440_PA_SYSCON + 0x0) +#define S5P_PA_CLK S5P6440_PA_CLK +#define S5P_VA_CLK (S5P_VA_SYSCON + 0x0) + +/* GPIO */ +#define S5P6440_PA_GPIO (0xE0308000) +#define S5P_PA_GPIO S5P6440_PA_GPIO +#define S5P_VA_GPIO S3C_ADDR(0x00500000) + +/* VIC0 */ +#define S5P6440_PA_VIC0 (0xE4000000) +#define S5P_PA_VIC0 S5P6440_PA_VIC0 +#define S5P_VA_VIC0 (S3C_VA_IRQ + 0x0) +#define VA_VIC0 S5P_VA_VIC0 + +/* VIC1 */ +#define S5P6440_PA_VIC1 (0xE4100000) +#define S5P_PA_VIC1 S5P6440_PA_VIC1 +#define S5P_VA_VIC1 (S3C_VA_IRQ + 0x10000) +#define VA_VIC1 S5P_VA_VIC1 + +/* Timer */ +#define S5P6440_PA_TIMER (0xEA000000) +#define S5P_PA_TIMER S5P6440_PA_TIMER +#define S5P_VA_TIMER S3C_VA_TIMER + +/* RTC */ +#define S5P6440_PA_RTC (0xEA100000) +#define S5P_PA_RTC S5P6440_PA_RTC +#define S5P_VA_RTC S3C_ADDR(0x00600000) + +/* WDT */ +#define S5P6440_PA_WDT (0xEA200000) +#define S5P_PA_WDT S5P6440_PA_WDT +#define S5p_VA_WDT S3C_VA_WATCHDOG + +/* UART */ +#define S5P6440_PA_UART (0xEC000000) +#define S5P_PA_UART S5P6440_PA_UART +#define S5P_VA_UART S3C_VA_UART + +#define S5P_PA_UART0 (S5P_PA_UART + 0x0) +#define S5P_PA_UART1 (S5P_PA_UART + 0x400) +#define S5P_PA_UART2 (S5P_PA_UART + 0x800) +#define S5P_PA_UART3 (S5P_PA_UART + 0xC00) +#define S5P_UART_OFFSET (0x400) + +#define S5P_VA_UARTx(x) (S5P_VA_UART + (S5P_PA_UART & 0xfffff) \ + + ((x) * S5P_UART_OFFSET)) + +#define S5P_VA_UART0 S5P_VA_UARTx(0) +#define S5P_VA_UART1 S5P_VA_UARTx(1) +#define S5P_VA_UART2 S5P_VA_UARTx(2) +#define S5P_VA_UART3 S5P_VA_UARTx(3) +#define S5P_SZ_UART SZ_256 + +/* I2C */ +#define S5P6440_PA_IIC0 (0xEC104000) +#define S5P_PA_IIC0 S5P6440_PA_IIC0 +#define S5p_VA_IIC0 S3C_ADDR(0x00700000) + +/* SDRAM */ +#define S5P6440_PA_SDRAM (0x20000000) +#define S5P_PA_SDRAM S5P6440_PA_SDRAM + +/* compatibiltiy defines. */ +#define S3C_PA_UART S5P_PA_UART +#define S3C_UART_OFFSET S5P_UART_OFFSET +#define S3C_PA_TIMER S5P_PA_TIMER +#define S3C_PA_IIC S5P_PA_IIC0 + +#endif /* __ASM_ARCH_MAP_H */ diff --git a/arch/arm/mach-s5p6440/include/mach/memory.h b/arch/arm/mach-s5p6440/include/mach/memory.h new file mode 100644 index 000000000000..d62910c71b56 --- /dev/null +++ b/arch/arm/mach-s5p6440/include/mach/memory.h @@ -0,0 +1,19 @@ +/* linux/arch/arm/mach-s5p6440/include/mach/memory.h + * + * Copyright (c) 2009 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * S5P6440 - Memory definitions + * + * 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_ARCH_MEMORY_H +#define __ASM_ARCH_MEMORY_H + +#define PHYS_OFFSET UL(0x20000000) +#define CONSISTENT_DMA_SIZE SZ_8M + +#endif /* __ASM_ARCH_MEMORY_H */ diff --git a/arch/arm/mach-s5p6440/include/mach/system.h b/arch/arm/mach-s5p6440/include/mach/system.h new file mode 100644 index 000000000000..d2dd817da66a --- /dev/null +++ b/arch/arm/mach-s5p6440/include/mach/system.h @@ -0,0 +1,26 @@ +/* linux/arch/arm/mach-s5p6440/include/mach/system.h + * + * Copyright (c) 2009 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * S5P6440 - system support header + * + * 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_ARCH_SYSTEM_H +#define __ASM_ARCH_SYSTEM_H __FILE__ + +static void arch_idle(void) +{ + /* nothing here yet */ +} + +static void arch_reset(char mode, const char *cmd) +{ + /* nothing here yet */ +} + +#endif /* __ASM_ARCH_SYSTEM_H */ diff --git a/arch/arm/mach-s5p6440/include/mach/uncompress.h b/arch/arm/mach-s5p6440/include/mach/uncompress.h new file mode 100644 index 000000000000..7c1f600d65c0 --- /dev/null +++ b/arch/arm/mach-s5p6440/include/mach/uncompress.h @@ -0,0 +1,24 @@ +/* linux/arch/arm/mach-s5p6440/include/mach/uncompress.h + * + * Copyright (c) 2009 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * S5P6440 - uncompress code + * + * 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_ARCH_UNCOMPRESS_H +#define __ASM_ARCH_UNCOMPRESS_H + +#include +#include + +static void arch_detect_cpu(void) +{ + /* we do not need to do any cpu detection here at the moment. */ +} + +#endif /* __ASM_ARCH_UNCOMPRESS_H */ -- cgit v1.2.3