198 lines
4.3 KiB
C
198 lines
4.3 KiB
C
/* linux/arch/arm/mach-s5pv210/cpu.c
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*
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* Copyright (c) 2010 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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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/module.h>
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#include <linux/clk.h>
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#include <linux/io.h>
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#include <linux/sysdev.h>
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#include <linux/platform_device.h>
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#include <linux/sched.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 <asm/proc-fns.h>
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#include <mach/map.h>
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#include <mach/regs-clock.h>
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#include <plat/cpu.h>
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#include <plat/devs.h>
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#include <plat/clock.h>
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#include <plat/fb-core.h>
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#include <plat/s5pv210.h>
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#include <plat/adc-core.h>
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#include <plat/ata-core.h>
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#include <plat/fimc-core.h>
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#include <plat/iic-core.h>
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#include <plat/keypad-core.h>
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#include <plat/sdhci.h>
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#include <plat/reset.h>
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/* Initial IO mappings */
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static struct map_desc s5pv210_iodesc[] __initdata = {
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{
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.virtual = (unsigned long)S5P_VA_SYSTIMER,
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.pfn = __phys_to_pfn(S5PV210_PA_SYSTIMER),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)S5P_VA_GPIO,
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.pfn = __phys_to_pfn(S5PV210_PA_GPIO),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)VA_VIC0,
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.pfn = __phys_to_pfn(S5PV210_PA_VIC0),
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.length = SZ_16K,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)VA_VIC1,
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.pfn = __phys_to_pfn(S5PV210_PA_VIC1),
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.length = SZ_16K,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)VA_VIC2,
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.pfn = __phys_to_pfn(S5PV210_PA_VIC2),
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.length = SZ_16K,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)VA_VIC3,
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.pfn = __phys_to_pfn(S5PV210_PA_VIC3),
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.length = SZ_16K,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)S3C_VA_UART,
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.pfn = __phys_to_pfn(S3C_PA_UART),
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.length = SZ_512K,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)S5P_VA_DMC0,
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.pfn = __phys_to_pfn(S5PV210_PA_DMC0),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)S5P_VA_DMC1,
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.pfn = __phys_to_pfn(S5PV210_PA_DMC1),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)S3C_VA_USB_HSPHY,
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.pfn =__phys_to_pfn(S5PV210_PA_HSPHY),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}
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};
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static void s5pv210_idle(void)
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{
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if (!need_resched())
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cpu_do_idle();
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local_irq_enable();
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}
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static void s5pv210_sw_reset(void)
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{
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__raw_writel(0x1, S5P_SWRESET);
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}
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/* s5pv210_map_io
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*
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* register the standard cpu IO areas
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*/
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void __init s5pv210_map_io(void)
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{
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iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc));
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/* initialise device information early */
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s5pv210_default_sdhci0();
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s5pv210_default_sdhci1();
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s5pv210_default_sdhci2();
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s5pv210_default_sdhci3();
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s3c_adc_setname("s3c64xx-adc");
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s3c_cfcon_setname("s5pv210-pata");
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s3c_fimc_setname(0, "s5pv210-fimc");
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s3c_fimc_setname(1, "s5pv210-fimc");
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s3c_fimc_setname(2, "s5pv210-fimc");
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/* the i2c devices are directly compatible with s3c2440 */
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s3c_i2c0_setname("s3c2440-i2c");
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s3c_i2c1_setname("s3c2440-i2c");
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s3c_i2c2_setname("s3c2440-i2c");
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s3c_fb_setname("s5pv210-fb");
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/* Use s5pv210-keypad instead of samsung-keypad */
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samsung_keypad_setname("s5pv210-keypad");
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}
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void __init s5pv210_init_clocks(int xtal)
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{
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printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
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s3c24xx_register_baseclocks(xtal);
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s5p_register_clocks(xtal);
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s5pv210_register_clocks();
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s5pv210_setup_clocks();
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}
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void __init s5pv210_init_irq(void)
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{
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u32 vic[4]; /* S5PV210 supports 4 VIC */
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/* All the VICs are fully populated. */
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vic[0] = ~0;
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vic[1] = ~0;
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vic[2] = ~0;
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vic[3] = ~0;
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s5p_init_irq(vic, ARRAY_SIZE(vic));
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}
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struct sysdev_class s5pv210_sysclass = {
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.name = "s5pv210-core",
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};
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static struct sys_device s5pv210_sysdev = {
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.cls = &s5pv210_sysclass,
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};
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static int __init s5pv210_core_init(void)
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{
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return sysdev_class_register(&s5pv210_sysclass);
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}
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core_initcall(s5pv210_core_init);
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int __init s5pv210_init(void)
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{
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printk(KERN_INFO "S5PV210: Initializing architecture\n");
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/* set idle function */
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pm_idle = s5pv210_idle;
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/* set sw_reset function */
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s5p_reset_hook = s5pv210_sw_reset;
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return sysdev_register(&s5pv210_sysdev);
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}
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