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Viewing changes to arch/arm/mach-s5pv210/cpu.c

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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arch/arm/mach-s5pv210/cpu.c
 
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/* 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 <linux/dma-mapping.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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#include <plat/tv-core.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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 *
 
118
 * register the standard cpu IO areas
 
119
*/
 
120
 
 
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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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        init_consistent_dma_size(14 << 20);
 
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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("samsung-adc-v3");
 
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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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147
        /* Use s5pv210-keypad instead of samsung-keypad */
 
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        samsung_keypad_setname("s5pv210-keypad");
 
149
 
 
150
        /* setup TV devices */
 
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        s5p_hdmi_setname("s5pv210-hdmi");
 
152
}
 
153
 
 
154
void __init s5pv210_init_clocks(int xtal)
 
155
{
 
156
        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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164
void __init s5pv210_init_irq(void)
 
165
{
 
166
        u32 vic[4];     /* S5PV210 supports 4 VIC */
 
167
 
 
168
        /* 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;
 
173
 
 
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        s5p_init_irq(vic, ARRAY_SIZE(vic));
 
175
}
 
176
 
 
177
struct sysdev_class s5pv210_sysclass = {
 
178
        .name   = "s5pv210-core",
 
179
};
 
180
 
 
181
static struct sys_device s5pv210_sysdev = {
 
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        .cls    = &s5pv210_sysclass,
 
183
};
 
184
 
 
185
static int __init s5pv210_core_init(void)
 
186
{
 
187
        return sysdev_class_register(&s5pv210_sysclass);
 
188
}
 
189
 
 
190
core_initcall(s5pv210_core_init);
 
191
 
 
192
int __init s5pv210_init(void)
 
193
{
 
194
        printk(KERN_INFO "S5PV210: Initializing architecture\n");
 
195
 
 
196
        /* set idle function */
 
197
        pm_idle = s5pv210_idle;
 
198
 
 
199
        /* set sw_reset function */
 
200
        s5p_reset_hook = s5pv210_sw_reset;
 
201
 
 
202
        return sysdev_register(&s5pv210_sysdev);
 
203
}