| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [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> |
| 19 | #include <linux/gpio.h> |
| 20 | #include <linux/platform_device.h> |
| 21 | #include <linux/serial_core.h> |
| 22 | #include <linux/device.h> |
| 23 | #include <linux/clk.h> |
| 24 | #include <linux/io.h> |
| 25 | #include <linux/reboot.h> |
| 26 | |
| 27 | #include <asm/mach/arch.h> |
| 28 | #include <asm/mach/map.h> |
| 29 | #include <asm/mach/irq.h> |
| 30 | |
| 31 | #include <mach/hardware.h> |
| 32 | #include <mach/gpio-samsung.h> |
| 33 | #include <asm/irq.h> |
| 34 | #include <asm/system_misc.h> |
| 35 | |
| 36 | #include <mach/regs-s3c2443-clock.h> |
| 37 | #include <mach/rtc-core.h> |
| 38 | |
| 39 | #include <plat/gpio-core.h> |
| 40 | #include <plat/gpio-cfg.h> |
| 41 | #include <plat/gpio-cfg-helpers.h> |
| 42 | #include <plat/devs.h> |
| 43 | #include <plat/cpu.h> |
| 44 | #include <plat/adc-core.h> |
| 45 | |
| 46 | #include "fb-core.h" |
| 47 | #include "nand-core.h" |
| 48 | #include "spi-core.h" |
| 49 | |
| 50 | static struct map_desc s3c2443_iodesc[] __initdata = { |
| 51 | IODESC_ENT(WATCHDOG), |
| 52 | IODESC_ENT(CLKPWR), |
| 53 | IODESC_ENT(TIMER), |
| 54 | }; |
| 55 | |
| 56 | struct bus_type s3c2443_subsys = { |
| 57 | .name = "s3c2443-core", |
| 58 | .dev_name = "s3c2443-core", |
| 59 | }; |
| 60 | |
| 61 | static struct device s3c2443_dev = { |
| 62 | .bus = &s3c2443_subsys, |
| 63 | }; |
| 64 | |
| 65 | int __init s3c2443_init(void) |
| 66 | { |
| 67 | printk("S3C2443: Initialising architecture\n"); |
| 68 | |
| 69 | s3c_nand_setname("s3c2412-nand"); |
| 70 | s3c_fb_setname("s3c2443-fb"); |
| 71 | |
| 72 | s3c_adc_setname("s3c2443-adc"); |
| 73 | s3c_rtc_setname("s3c2443-rtc"); |
| 74 | |
| 75 | /* change WDT IRQ number */ |
| 76 | s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT; |
| 77 | s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT; |
| 78 | |
| 79 | return device_register(&s3c2443_dev); |
| 80 | } |
| 81 | |
| 82 | void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no) |
| 83 | { |
| 84 | s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no); |
| 85 | } |
| 86 | |
| 87 | /* s3c2443_map_io |
| 88 | * |
| 89 | * register the standard cpu IO areas, and any passed in from the |
| 90 | * machine specific initialisation. |
| 91 | */ |
| 92 | |
| 93 | void __init s3c2443_map_io(void) |
| 94 | { |
| 95 | s3c24xx_gpiocfg_default.set_pull = s3c2443_gpio_setpull; |
| 96 | s3c24xx_gpiocfg_default.get_pull = s3c2443_gpio_getpull; |
| 97 | |
| 98 | /* initialize device information early */ |
| 99 | s3c64xx_spi_setname("s3c2443-spi"); |
| 100 | |
| 101 | iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc)); |
| 102 | } |
| 103 | |
| 104 | /* need to register the subsystem before we actually register the device, and |
| 105 | * we also need to ensure that it has been initialised before any of the |
| 106 | * drivers even try to use it (even if not on an s3c2443 based system) |
| 107 | * as a driver which may support both 2443 and 2440 may try and use it. |
| 108 | */ |
| 109 | |
| 110 | static int __init s3c2443_core_init(void) |
| 111 | { |
| 112 | return subsys_system_register(&s3c2443_subsys, NULL); |
| 113 | } |
| 114 | |
| 115 | core_initcall(s3c2443_core_init); |