diff options
Diffstat (limited to 'arch/arm/mach-s3c24xx/s3c2443.c')
-rw-r--r-- | arch/arm/mach-s3c24xx/s3c2443.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c24xx/s3c2443.c b/arch/arm/mach-s3c24xx/s3c2443.c new file mode 100644 index 000000000000..b9deaeb0dfff --- /dev/null +++ b/arch/arm/mach-s3c24xx/s3c2443.c @@ -0,0 +1,114 @@ +/* linux/arch/arm/mach-s3c2443/s3c2443.c + * + * Copyright (c) 2007 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * Samsung S3C2443 Mobile 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/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/timer.h> +#include <linux/init.h> +#include <linux/gpio.h> +#include <linux/platform_device.h> +#include <linux/serial_core.h> +#include <linux/device.h> +#include <linux/clk.h> +#include <linux/io.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <mach/hardware.h> +#include <asm/irq.h> + +#include <mach/regs-s3c2443-clock.h> + +#include <plat/gpio-core.h> +#include <plat/gpio-cfg.h> +#include <plat/gpio-cfg-helpers.h> +#include <plat/s3c2443.h> +#include <plat/devs.h> +#include <plat/cpu.h> +#include <plat/fb-core.h> +#include <plat/nand-core.h> +#include <plat/adc-core.h> + +static struct map_desc s3c2443_iodesc[] __initdata = { + IODESC_ENT(WATCHDOG), + IODESC_ENT(CLKPWR), + IODESC_ENT(TIMER), +}; + +struct bus_type s3c2443_subsys = { + .name = "s3c2443-core", + .dev_name = "s3c2443-core", +}; + +static struct device s3c2443_dev = { + .bus = &s3c2443_subsys, +}; + +void s3c2443_restart(char mode, const char *cmd) +{ + if (mode == 's') + soft_restart(0); + + __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST); +} + +int __init s3c2443_init(void) +{ + printk("S3C2443: Initialising architecture\n"); + + s3c_nand_setname("s3c2412-nand"); + s3c_fb_setname("s3c2443-fb"); + + s3c_adc_setname("s3c2443-adc"); + + /* change WDT IRQ number */ + s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT; + s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT; + + return device_register(&s3c2443_dev); +} + +void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no) +{ + s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no); +} + +/* s3c2443_map_io + * + * register the standard cpu IO areas, and any passed in from the + * machine specific initialisation. + */ + +void __init s3c2443_map_io(void) +{ + s3c24xx_gpiocfg_default.set_pull = s3c2443_gpio_setpull; + s3c24xx_gpiocfg_default.get_pull = s3c2443_gpio_getpull; + + iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc)); +} + +/* need to register the subsystem before we actually register the device, and + * we also need to ensure that it has been initialised before any of the + * drivers even try to use it (even if not on an s3c2443 based system) + * as a driver which may support both 2443 and 2440 may try and use it. +*/ + +static int __init s3c2443_core_init(void) +{ + return subsys_system_register(&s3c2443_subsys, NULL); +} + +core_initcall(s3c2443_core_init); |