Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 1 | /* linux/arch/arm/mach-s3c2416/s3c2416.c |
| 2 | * |
| 3 | * Copyright (c) 2009 Yauhen Kharuzhy <jekhor@gmail.com>, |
| 4 | * as part of OpenInkpot project |
| 5 | * Copyright (c) 2009 Promwad Innovation Company |
| 6 | * Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com> |
| 7 | * |
| 8 | * Samsung S3C2416 Mobile CPU support |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 23 | */ |
| 24 | |
| 25 | #include <linux/kernel.h> |
| 26 | #include <linux/types.h> |
| 27 | #include <linux/interrupt.h> |
| 28 | #include <linux/list.h> |
| 29 | #include <linux/timer.h> |
| 30 | #include <linux/init.h> |
Ben Dooks | eb90de4 | 2010-04-30 19:48:02 +0900 | [diff] [blame] | 31 | #include <linux/gpio.h> |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 32 | #include <linux/platform_device.h> |
| 33 | #include <linux/serial_core.h> |
Kay Sievers | 4a858cf | 2011-12-21 16:01:38 -0800 | [diff] [blame] | 34 | #include <linux/device.h> |
Rafael J. Wysocki | bb072c3 | 2011-04-22 22:03:21 +0200 | [diff] [blame] | 35 | #include <linux/syscore_ops.h> |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 36 | #include <linux/clk.h> |
| 37 | #include <linux/io.h> |
| 38 | |
| 39 | #include <asm/mach/arch.h> |
| 40 | #include <asm/mach/map.h> |
| 41 | #include <asm/mach/irq.h> |
| 42 | |
| 43 | #include <mach/hardware.h> |
| 44 | #include <asm/proc-fns.h> |
| 45 | #include <asm/irq.h> |
| 46 | |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 47 | #include <mach/regs-s3c2443-clock.h> |
| 48 | |
Ben Dooks | eb90de4 | 2010-04-30 19:48:02 +0900 | [diff] [blame] | 49 | #include <plat/gpio-core.h> |
| 50 | #include <plat/gpio-cfg.h> |
| 51 | #include <plat/gpio-cfg-helpers.h> |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 52 | #include <plat/s3c2416.h> |
| 53 | #include <plat/devs.h> |
| 54 | #include <plat/cpu.h> |
Yauhen Kharuzhy | c29cfa6 | 2010-12-17 14:42:09 +0900 | [diff] [blame] | 55 | #include <plat/sdhci.h> |
Rafael J. Wysocki | bb072c3 | 2011-04-22 22:03:21 +0200 | [diff] [blame] | 56 | #include <plat/pm.h> |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 57 | |
Ben Dooks | e12ef7f | 2010-05-03 16:44:35 +0900 | [diff] [blame] | 58 | #include <plat/iic-core.h> |
Pawel Osciak | eb42b04 | 2010-08-10 18:02:37 -0700 | [diff] [blame] | 59 | #include <plat/fb-core.h> |
Atul Dahiya | ef3f2dd | 2010-10-18 19:56:45 +0900 | [diff] [blame] | 60 | #include <plat/nand-core.h> |
Heiko Stuebner | 35cc3ce | 2011-10-12 21:34:12 +0900 | [diff] [blame] | 61 | #include <plat/adc-core.h> |
Ben Dooks | e12ef7f | 2010-05-03 16:44:35 +0900 | [diff] [blame] | 62 | |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 63 | static struct map_desc s3c2416_iodesc[] __initdata = { |
| 64 | IODESC_ENT(WATCHDOG), |
| 65 | IODESC_ENT(CLKPWR), |
| 66 | IODESC_ENT(TIMER), |
| 67 | }; |
| 68 | |
Kay Sievers | 4a858cf | 2011-12-21 16:01:38 -0800 | [diff] [blame] | 69 | struct bus_type s3c2416_subsys = { |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 70 | .name = "s3c2416-core", |
Kay Sievers | 4a858cf | 2011-12-21 16:01:38 -0800 | [diff] [blame] | 71 | .dev_name = "s3c2416-core", |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 72 | }; |
| 73 | |
Kay Sievers | 4a858cf | 2011-12-21 16:01:38 -0800 | [diff] [blame] | 74 | static struct device s3c2416_dev = { |
| 75 | .bus = &s3c2416_subsys, |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 76 | }; |
| 77 | |
Heiko Stuebner | 5753897 | 2011-12-22 23:37:44 +0100 | [diff] [blame] | 78 | void s3c2416_restart(char mode, const char *cmd) |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 79 | { |
Heiko Stuebner | 5753897 | 2011-12-22 23:37:44 +0100 | [diff] [blame] | 80 | if (mode == 's') |
| 81 | soft_restart(0); |
| 82 | |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 83 | __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST); |
| 84 | } |
| 85 | |
| 86 | int __init s3c2416_init(void) |
| 87 | { |
| 88 | printk(KERN_INFO "S3C2416: Initializing architecture\n"); |
| 89 | |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 90 | /* change WDT IRQ number */ |
| 91 | s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT; |
| 92 | s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT; |
| 93 | |
Ben Dooks | e12ef7f | 2010-05-03 16:44:35 +0900 | [diff] [blame] | 94 | /* the i2c devices are directly compatible with s3c2440 */ |
| 95 | s3c_i2c0_setname("s3c2440-i2c"); |
| 96 | s3c_i2c1_setname("s3c2440-i2c"); |
| 97 | |
Pawel Osciak | eb42b04 | 2010-08-10 18:02:37 -0700 | [diff] [blame] | 98 | s3c_fb_setname("s3c2443-fb"); |
Ben Dooks | f64bea4 | 2010-05-03 15:29:44 +0900 | [diff] [blame] | 99 | |
Heiko Stuebner | 35cc3ce | 2011-10-12 21:34:12 +0900 | [diff] [blame] | 100 | s3c_adc_setname("s3c2416-adc"); |
| 101 | |
Domenico Andreoli | fb630b9 | 2011-10-22 04:00:53 +0900 | [diff] [blame] | 102 | #ifdef CONFIG_PM |
Rafael J. Wysocki | bb072c3 | 2011-04-22 22:03:21 +0200 | [diff] [blame] | 103 | register_syscore_ops(&s3c2416_pm_syscore_ops); |
Domenico Andreoli | fb630b9 | 2011-10-22 04:00:53 +0900 | [diff] [blame] | 104 | #endif |
Rafael J. Wysocki | bb072c3 | 2011-04-22 22:03:21 +0200 | [diff] [blame] | 105 | register_syscore_ops(&s3c24xx_irq_syscore_ops); |
| 106 | |
Kay Sievers | 4a858cf | 2011-12-21 16:01:38 -0800 | [diff] [blame] | 107 | return device_register(&s3c2416_dev); |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | void __init s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no) |
| 111 | { |
| 112 | s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no); |
| 113 | |
Atul Dahiya | 4bc7786 | 2010-10-18 19:56:49 +0900 | [diff] [blame] | 114 | s3c_nand_setname("s3c2412-nand"); |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 115 | } |
| 116 | |
| 117 | /* s3c2416_map_io |
| 118 | * |
| 119 | * register the standard cpu IO areas, and any passed in from the |
| 120 | * machine specific initialisation. |
| 121 | */ |
| 122 | |
| 123 | void __init s3c2416_map_io(void) |
| 124 | { |
Kukjin Kim | 782d8a3 | 2011-08-30 20:47:32 +0900 | [diff] [blame] | 125 | s3c24xx_gpiocfg_default.set_pull = samsung_gpio_setpull_updown; |
| 126 | s3c24xx_gpiocfg_default.get_pull = samsung_gpio_getpull_updown; |
Ben Dooks | eb90de4 | 2010-04-30 19:48:02 +0900 | [diff] [blame] | 127 | |
Yauhen Kharuzhy | c29cfa6 | 2010-12-17 14:42:09 +0900 | [diff] [blame] | 128 | /* initialize device information early */ |
| 129 | s3c2416_default_sdhci0(); |
| 130 | s3c2416_default_sdhci1(); |
| 131 | |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 132 | iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc)); |
| 133 | } |
| 134 | |
Kay Sievers | 4a858cf | 2011-12-21 16:01:38 -0800 | [diff] [blame] | 135 | /* need to register the subsystem before we actually register the device, and |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 136 | * we also need to ensure that it has been initialised before any of the |
| 137 | * drivers even try to use it (even if not on an s3c2416 based system) |
| 138 | * as a driver which may support both 2443 and 2440 may try and use it. |
| 139 | */ |
| 140 | |
| 141 | static int __init s3c2416_core_init(void) |
| 142 | { |
Kay Sievers | 4a858cf | 2011-12-21 16:01:38 -0800 | [diff] [blame] | 143 | return subsys_system_register(&s3c2416_subsys, NULL); |
Yauhen Kharuzhy | f1290a4 | 2010-04-28 18:09:01 +0900 | [diff] [blame] | 144 | } |
| 145 | |
| 146 | core_initcall(s3c2416_core_init); |