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0536d0d087
S3C2443 has two-bits pull-up/pull-down configuration fields in GPIO registers, but values are differ from other SoCs with two-bits configuration. gpio-cfg-helpers.h already has prototypes for s3c2443-style pull-up/down methods, so implement them. Signed-off-by: Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
111 lines
2.7 KiB
C
111 lines
2.7 KiB
C
/* linux/arch/arm/mach-s3c2443/s3c2443.c
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*
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* Copyright (c) 2007 Simtec Electronics
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* Ben Dooks <ben@simtec.co.uk>
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*
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* Samsung S3C2443 Mobile CPU support
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/gpio.h>
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#include <linux/platform_device.h>
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#include <linux/serial_core.h>
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#include <linux/sysdev.h>
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#include <linux/clk.h>
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#include <linux/io.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <mach/hardware.h>
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#include <asm/irq.h>
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#include <mach/regs-s3c2443-clock.h>
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#include <mach/reset.h>
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#include <plat/gpio-core.h>
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#include <plat/gpio-cfg.h>
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#include <plat/gpio-cfg-helpers.h>
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#include <plat/s3c2443.h>
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#include <plat/devs.h>
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#include <plat/cpu.h>
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#include <plat/fb-core.h>
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#include <plat/nand-core.h>
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static struct map_desc s3c2443_iodesc[] __initdata = {
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IODESC_ENT(WATCHDOG),
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IODESC_ENT(CLKPWR),
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IODESC_ENT(TIMER),
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};
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struct sysdev_class s3c2443_sysclass = {
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.name = "s3c2443-core",
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};
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static struct sys_device s3c2443_sysdev = {
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.cls = &s3c2443_sysclass,
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};
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static void s3c2443_hard_reset(void)
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{
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__raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST);
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}
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int __init s3c2443_init(void)
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{
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printk("S3C2443: Initialising architecture\n");
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s3c24xx_reset_hook = s3c2443_hard_reset;
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s3c_nand_setname("s3c2412-nand");
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s3c_fb_setname("s3c2443-fb");
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/* change WDT IRQ number */
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s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
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s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT;
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return sysdev_register(&s3c2443_sysdev);
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}
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void __init s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no)
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{
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s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
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}
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/* s3c2443_map_io
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*
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* register the standard cpu IO areas, and any passed in from the
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* machine specific initialisation.
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*/
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void __init s3c2443_map_io(void)
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{
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s3c24xx_gpiocfg_default.set_pull = s3c_gpio_setpull_s3c2443;
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s3c24xx_gpiocfg_default.get_pull = s3c_gpio_getpull_s3c2443;
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iotable_init(s3c2443_iodesc, ARRAY_SIZE(s3c2443_iodesc));
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}
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/* need to register class before we actually register the device, and
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* we also need to ensure that it has been initialised before any of the
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* drivers even try to use it (even if not on an s3c2443 based system)
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* as a driver which may support both 2443 and 2440 may try and use it.
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*/
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static int __init s3c2443_core_init(void)
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{
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return sysdev_class_register(&s3c2443_sysclass);
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}
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core_initcall(s3c2443_core_init);
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