Ben Dooks | e4d06e3 | 2007-02-16 12:12:31 +0100 | [diff] [blame] | 1 | /* linux/arch/arm/mach-s3c2443/s3c2443.c |
| 2 | * |
| 3 | * Copyright (c) 2007 Simtec Electronics |
| 4 | * Ben Dooks <ben@simtec.co.uk> |
| 5 | * |
| 6 | * Samsung S3C2443 Mobile CPU support |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/types.h> |
| 15 | #include <linux/interrupt.h> |
| 16 | #include <linux/list.h> |
| 17 | #include <linux/timer.h> |
| 18 | #include <linux/init.h> |
Yauhen Kharuzhy | 0536d0d | 2011-01-06 13:04:33 +0900 | [diff] [blame] | 19 | #include <linux/gpio.h> |
Ben Dooks | e4d06e3 | 2007-02-16 12:12:31 +0100 | [diff] [blame] | 20 | #include <linux/platform_device.h> |
| 21 | #include <linux/serial_core.h> |
| 22 | #include <linux/sysdev.h> |
| 23 | #include <linux/clk.h> |
Russell King | fced80c | 2008-09-06 12:10:45 +0100 | [diff] [blame] | 24 | #include <linux/io.h> |
Ben Dooks | e4d06e3 | 2007-02-16 12:12:31 +0100 | [diff] [blame] | 25 | |
| 26 | #include <asm/mach/arch.h> |
| 27 | #include <asm/mach/map.h> |
| 28 | #include <asm/mach/irq.h> |
| 29 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 30 | #include <mach/hardware.h> |
Ben Dooks | e4d06e3 | 2007-02-16 12:12:31 +0100 | [diff] [blame] | 31 | #include <asm/irq.h> |
| 32 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 33 | #include <mach/regs-s3c2443-clock.h> |
| 34 | #include <mach/reset.h> |
Ben Dooks | e4d06e3 | 2007-02-16 12:12:31 +0100 | [diff] [blame] | 35 | |
Yauhen Kharuzhy | 0536d0d | 2011-01-06 13:04:33 +0900 | [diff] [blame] | 36 | #include <plat/gpio-core.h> |
| 37 | #include <plat/gpio-cfg.h> |
| 38 | #include <plat/gpio-cfg-helpers.h> |
Ben Dooks | a2b7ba9 | 2008-10-07 22:26:09 +0100 | [diff] [blame] | 39 | #include <plat/s3c2443.h> |
| 40 | #include <plat/devs.h> |
| 41 | #include <plat/cpu.h> |
Pawel Osciak | eb42b04 | 2010-08-10 18:02:37 -0700 | [diff] [blame] | 42 | #include <plat/fb-core.h> |
Atul Dahiya | ef3f2dd | 2010-10-18 19:56:45 +0900 | [diff] [blame] | 43 | #include <plat/nand-core.h> |
Heiko Stuebner | 6247cea | 2011-10-12 21:34:12 +0900 | [diff] [blame] | 44 | #include <plat/adc-core.h> |
Ben Dooks | e4d06e3 | 2007-02-16 12:12:31 +0100 | [diff] [blame] | 45 | |
| 46 | static struct map_desc s3c2443_iodesc[] __initdata = { |
| 47 | IODESC_ENT(WATCHDOG), |
| 48 | IODESC_ENT(CLKPWR), |
| 49 | IODESC_ENT(TIMER), |
| 50 | }; |
| 51 | |
| 52 | struct sysdev_class s3c2443_sysclass = { |
Kay Sievers | af5ca3f | 2007-12-20 02:09:39 +0100 | [diff] [blame] | 53 | .name = "s3c2443-core", |
Ben Dooks | e4d06e3 | 2007-02-16 12:12:31 +0100 | [diff] [blame] | 54 | }; |
| 55 | |
| 56 | static struct sys_device s3c2443_sysdev = { |
| 57 | .cls = &s3c2443_sysclass, |
| 58 | }; |
| 59 | |
Ben Dooks | b4f14eb | 2007-02-15 22:53:52 +0100 | [diff] [blame] | 60 | static void s3c2443_hard_reset(void) |
| 61 | { |
| 62 | __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST); |
| 63 | } |
| 64 | |
Ben Dooks | e4d06e3 | 2007-02-16 12:12:31 +0100 | [diff] [blame] | 65 | int __init s3c2443_init(void) |
| 66 | { |
| 67 | printk("S3C2443: Initialising architecture\n"); |
| 68 | |
Ben Dooks | b4f14eb | 2007-02-15 22:53:52 +0100 | [diff] [blame] | 69 | s3c24xx_reset_hook = s3c2443_hard_reset; |
| 70 | |
Atul Dahiya | ef3f2dd | 2010-10-18 19:56:45 +0900 | [diff] [blame] | 71 | s3c_nand_setname("s3c2412-nand"); |
Pawel Osciak | eb42b04 | 2010-08-10 18:02:37 -0700 | [diff] [blame] | 72 | s3c_fb_setname("s3c2443-fb"); |
Ben Dooks | d9c0ebb | 2007-02-15 22:29:36 +0100 | [diff] [blame] | 73 | |
Heiko Stuebner | 6247cea | 2011-10-12 21:34:12 +0900 | [diff] [blame] | 74 | s3c_adc_setname("s3c2443-adc"); |
| 75 | |
Ben Dooks | 7e966f3 | 2007-05-20 18:02:50 +0100 | [diff] [blame] | 76 | /* change WDT IRQ number */ |
| 77 | s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT; |
| 78 | s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT; |
| 79 | |
Ben Dooks | e4d06e3 | 2007-02-16 12:12:31 +0100 | [diff] [blame] | 80 | return sysdev_register(&s3c2443_sysdev); |
| 81 | } |
| 82 | |
| 83 | void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no) |
| 84 | { |
| 85 | s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no); |
| 86 | } |
| 87 | |
| 88 | /* s3c2443_map_io |
| 89 | * |
| 90 | * register the standard cpu IO areas, and any passed in from the |
| 91 | * machine specific initialisation. |
| 92 | */ |
| 93 | |
Ben Dooks | 74b265d | 2008-10-21 14:06:31 +0100 | [diff] [blame] | 94 | void __init s3c2443_map_io(void) |
Ben Dooks | e4d06e3 | 2007-02-16 12:12:31 +0100 | [diff] [blame] | 95 | { |
Kukjin Kim | 782d8a3 | 2011-08-30 20:47:32 +0900 | [diff] [blame] | 96 | s3c24xx_gpiocfg_default.set_pull = s3c2443_gpio_setpull; |
| 97 | s3c24xx_gpiocfg_default.get_pull = s3c2443_gpio_getpull; |
Yauhen Kharuzhy | 0536d0d | 2011-01-06 13:04:33 +0900 | [diff] [blame] | 98 | |
Ben Dooks | e4d06e3 | 2007-02-16 12:12:31 +0100 | [diff] [blame] | 99 | iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc)); |
Ben Dooks | e4d06e3 | 2007-02-16 12:12:31 +0100 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | /* need to register class before we actually register the device, and |
| 103 | * we also need to ensure that it has been initialised before any of the |
| 104 | * drivers even try to use it (even if not on an s3c2443 based system) |
| 105 | * as a driver which may support both 2443 and 2440 may try and use it. |
| 106 | */ |
| 107 | |
| 108 | static int __init s3c2443_core_init(void) |
| 109 | { |
| 110 | return sysdev_class_register(&s3c2443_sysclass); |
| 111 | } |
| 112 | |
| 113 | core_initcall(s3c2443_core_init); |