diff options
Diffstat (limited to 'arch/arm/plat-s5p')
-rw-r--r-- | arch/arm/plat-s5p/cpu.c | 90 | ||||
-rw-r--r-- | arch/arm/plat-s5p/include/plat/s5p6440.h | 37 | ||||
-rw-r--r-- | arch/arm/plat-s5p/s5p6440-init.c | 50 | ||||
-rw-r--r-- | arch/arm/plat-s5p/setup-i2c0.c | 25 |
4 files changed, 202 insertions, 0 deletions
diff --git a/arch/arm/plat-s5p/cpu.c b/arch/arm/plat-s5p/cpu.c new file mode 100644 index 00000000000..0895a77a283 --- /dev/null +++ b/arch/arm/plat-s5p/cpu.c @@ -0,0 +1,90 @@ +/* linux/arch/arm/plat-s5p/cpu.c + * + * Copyright (c) 2009 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * S5P CPU 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. +*/ + +#include <linux/init.h> +#include <linux/module.h> +#include <mach/map.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <mach/regs-clock.h> +#include <plat/cpu.h> +#include <plat/s5p6440.h> + +/* table of supported CPUs */ + +static const char name_s5p6440[] = "S5P6440"; + +static struct cpu_table cpu_ids[] __initdata = { + { + .idcode = 0x56440100, + .idmask = 0xffffff00, + .map_io = s5p6440_map_io, + .init_clocks = s5p6440_init_clocks, + .init_uarts = s5p6440_init_uarts, + .init = s5p6440_init, + .name = name_s5p6440, + }, +}; + +/* minimal IO mapping */ + +#define UART_OFFS (S5P_PA_UART & 0xfffff) + +static struct map_desc s5p_iodesc[] __initdata = { + { + .virtual = (unsigned long)S5P_VA_SYSCON, + .pfn = __phys_to_pfn(S5P_PA_SYSCON), + .length = SZ_64K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)(S5P_VA_UART + UART_OFFS), + .pfn = __phys_to_pfn(S5P_PA_UART), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_VIC0, + .pfn = __phys_to_pfn(S5P_PA_VIC0), + .length = SZ_16K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_VIC1, + .pfn = __phys_to_pfn(S5P_PA_VIC1), + .length = SZ_16K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_TIMER, + .pfn = __phys_to_pfn(S5P_PA_TIMER), + .length = SZ_16K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_GPIO, + .pfn = __phys_to_pfn(S5P_PA_GPIO), + .length = SZ_4K, + .type = MT_DEVICE, + }, +}; + +/* read cpu identification code */ + +void __init s5p_init_io(struct map_desc *mach_desc, + int size, void __iomem *cpuid_addr) +{ + unsigned long idcode; + + /* initialize the io descriptors we need for initialization */ + iotable_init(s5p_iodesc, ARRAY_SIZE(s5p_iodesc)); + if (mach_desc) + iotable_init(mach_desc, size); + + idcode = __raw_readl(cpuid_addr); + s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids)); +} diff --git a/arch/arm/plat-s5p/include/plat/s5p6440.h b/arch/arm/plat-s5p/include/plat/s5p6440.h new file mode 100644 index 00000000000..a4cd75afeb3 --- /dev/null +++ b/arch/arm/plat-s5p/include/plat/s5p6440.h @@ -0,0 +1,37 @@ +/* arch/arm/plat-s5p/include/plat/s5p6440.h + * + * Copyright (c) 2009 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * Header file for s5p6440 cpu 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. +*/ + + /* Common init code for S5P6440 related SoCs */ + +extern void s5p6440_common_init_uarts(struct s3c2410_uartcfg *cfg, int no); +extern void s5p6440_register_clocks(void); +extern void s5p6440_setup_clocks(void); + +#ifdef CONFIG_CPU_S5P6440 + +extern int s5p6440_init(void); +extern void s5p6440_init_irq(void); +extern void s5p6440_map_io(void); +extern void s5p6440_init_clocks(int xtal); + +#define s5p6440_init_uarts s5p6440_common_init_uarts + +#else +#define s5p6440_init_clocks NULL +#define s5p6440_init_uarts NULL +#define s5p6440_map_io NULL +#define s5p6440_init NULL +#endif + +/* S5P6440 timer */ + +extern struct sys_timer s5p6440_timer; diff --git a/arch/arm/plat-s5p/s5p6440-init.c b/arch/arm/plat-s5p/s5p6440-init.c new file mode 100644 index 00000000000..90178256cc2 --- /dev/null +++ b/arch/arm/plat-s5p/s5p6440-init.c @@ -0,0 +1,50 @@ +/* linux/arch/arm/plat-s5p/s5p6440-init.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 <linux/kernel.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/serial_core.h> + +#include <plat/cpu.h> +#include <plat/devs.h> +#include <plat/s5p6440.h> +#include <plat/regs-serial.h> + +static struct s3c24xx_uart_clksrc s5p6440_serial_clocks[] = { + [0] = { + .name = "pclk_low", + .divisor = 1, + .min_baud = 0, + .max_baud = 0, + }, + [1] = { + .name = "uclk1", + .divisor = 1, + .min_baud = 0, + .max_baud = 0, + }, +}; + +/* uart registration process */ +void __init s5p6440_common_init_uarts(struct s3c2410_uartcfg *cfg, int no) +{ + struct s3c2410_uartcfg *tcfg = cfg; + u32 ucnt; + + for (ucnt = 0; ucnt < no; ucnt++, tcfg++) { + if (!tcfg->clocks) { + tcfg->clocks = s5p6440_serial_clocks; + tcfg->clocks_size = ARRAY_SIZE(s5p6440_serial_clocks); + } + } + + s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no); +} diff --git a/arch/arm/plat-s5p/setup-i2c0.c b/arch/arm/plat-s5p/setup-i2c0.c new file mode 100644 index 00000000000..67a66e02a97 --- /dev/null +++ b/arch/arm/plat-s5p/setup-i2c0.c @@ -0,0 +1,25 @@ +/* linux/arch/arm/plat-s5p/setup-i2c0.c + * + * Copyright (c) 2009 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * I2C0 GPIO configuration. + * + * Based on plat-s3c64xx/setup-i2c0.c + * + * 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/types.h> + +struct platform_device; /* don't need the contents */ + +#include <plat/iic.h> + +void s3c_i2c0_cfg_gpio(struct platform_device *dev) +{ + /* Will be populated later */ +} |