linux/arch/arm/mach-s5pv210/common.c
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   1/*
   2 * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
   3 *              http://www.samsung.com
   4 *
   5 * Common Codes for S5PV210
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License version 2 as
   9 * published by the Free Software Foundation.
  10 */
  11
  12#include <linux/kernel.h>
  13#include <linux/types.h>
  14#include <linux/interrupt.h>
  15#include <linux/list.h>
  16#include <linux/timer.h>
  17#include <linux/init.h>
  18#include <linux/module.h>
  19#include <linux/clk.h>
  20#include <linux/io.h>
  21#include <linux/device.h>
  22#include <clocksource/samsung_pwm.h>
  23#include <linux/platform_device.h>
  24#include <linux/sched.h>
  25#include <linux/dma-mapping.h>
  26#include <linux/serial_core.h>
  27
  28#include <asm/proc-fns.h>
  29#include <asm/mach/arch.h>
  30#include <asm/mach/map.h>
  31#include <asm/mach/irq.h>
  32
  33#include <mach/map.h>
  34#include <mach/regs-clock.h>
  35
  36#include <plat/cpu.h>
  37#include <plat/clock.h>
  38#include <plat/devs.h>
  39#include <plat/sdhci.h>
  40#include <plat/adc-core.h>
  41#include <plat/ata-core.h>
  42#include <plat/fb-core.h>
  43#include <plat/fimc-core.h>
  44#include <plat/iic-core.h>
  45#include <plat/keypad-core.h>
  46#include <plat/pwm-core.h>
  47#include <plat/tv-core.h>
  48#include <plat/spi-core.h>
  49#include <plat/regs-serial.h>
  50
  51#include "common.h"
  52
  53static const char name_s5pv210[] = "S5PV210/S5PC110";
  54
  55static struct cpu_table cpu_ids[] __initdata = {
  56        {
  57                .idcode         = S5PV210_CPU_ID,
  58                .idmask         = S5PV210_CPU_MASK,
  59                .map_io         = s5pv210_map_io,
  60                .init_clocks    = s5pv210_init_clocks,
  61                .init_uarts     = s5pv210_init_uarts,
  62                .init           = s5pv210_init,
  63                .name           = name_s5pv210,
  64        },
  65};
  66
  67/* Initial IO mappings */
  68
  69static struct map_desc s5pv210_iodesc[] __initdata = {
  70        {
  71                .virtual        = (unsigned long)S5P_VA_CHIPID,
  72                .pfn            = __phys_to_pfn(S5PV210_PA_CHIPID),
  73                .length         = SZ_4K,
  74                .type           = MT_DEVICE,
  75        }, {
  76                .virtual        = (unsigned long)S3C_VA_SYS,
  77                .pfn            = __phys_to_pfn(S5PV210_PA_SYSCON),
  78                .length         = SZ_64K,
  79                .type           = MT_DEVICE,
  80        }, {
  81                .virtual        = (unsigned long)S3C_VA_TIMER,
  82                .pfn            = __phys_to_pfn(S5PV210_PA_TIMER),
  83                .length         = SZ_16K,
  84                .type           = MT_DEVICE,
  85        }, {
  86                .virtual        = (unsigned long)S3C_VA_WATCHDOG,
  87                .pfn            = __phys_to_pfn(S5PV210_PA_WATCHDOG),
  88                .length         = SZ_4K,
  89                .type           = MT_DEVICE,
  90        }, {
  91                .virtual        = (unsigned long)S5P_VA_SROMC,
  92                .pfn            = __phys_to_pfn(S5PV210_PA_SROMC),
  93                .length         = SZ_4K,
  94                .type           = MT_DEVICE,
  95        }, {
  96                .virtual        = (unsigned long)S5P_VA_SYSTIMER,
  97                .pfn            = __phys_to_pfn(S5PV210_PA_SYSTIMER),
  98                .length         = SZ_4K,
  99                .type           = MT_DEVICE,
 100        }, {
 101                .virtual        = (unsigned long)S5P_VA_GPIO,
 102                .pfn            = __phys_to_pfn(S5PV210_PA_GPIO),
 103                .length         = SZ_4K,
 104                .type           = MT_DEVICE,
 105        }, {
 106                .virtual        = (unsigned long)VA_VIC0,
 107                .pfn            = __phys_to_pfn(S5PV210_PA_VIC0),
 108                .length         = SZ_16K,
 109                .type           = MT_DEVICE,
 110        }, {
 111                .virtual        = (unsigned long)VA_VIC1,
 112                .pfn            = __phys_to_pfn(S5PV210_PA_VIC1),
 113                .length         = SZ_16K,
 114                .type           = MT_DEVICE,
 115        }, {
 116                .virtual        = (unsigned long)VA_VIC2,
 117                .pfn            = __phys_to_pfn(S5PV210_PA_VIC2),
 118                .length         = SZ_16K,
 119                .type           = MT_DEVICE,
 120        }, {
 121                .virtual        = (unsigned long)VA_VIC3,
 122                .pfn            = __phys_to_pfn(S5PV210_PA_VIC3),
 123                .length         = SZ_16K,
 124                .type           = MT_DEVICE,
 125        }, {
 126                .virtual        = (unsigned long)S3C_VA_UART,
 127                .pfn            = __phys_to_pfn(S3C_PA_UART),
 128                .length         = SZ_512K,
 129                .type           = MT_DEVICE,
 130        }, {
 131                .virtual        = (unsigned long)S5P_VA_DMC0,
 132                .pfn            = __phys_to_pfn(S5PV210_PA_DMC0),
 133                .length         = SZ_4K,
 134                .type           = MT_DEVICE,
 135        }, {
 136                .virtual        = (unsigned long)S5P_VA_DMC1,
 137                .pfn            = __phys_to_pfn(S5PV210_PA_DMC1),
 138                .length         = SZ_4K,
 139                .type           = MT_DEVICE,
 140        }, {
 141                .virtual        = (unsigned long)S3C_VA_USB_HSPHY,
 142                .pfn            =__phys_to_pfn(S5PV210_PA_HSPHY),
 143                .length         = SZ_4K,
 144                .type           = MT_DEVICE,
 145        }
 146};
 147
 148void s5pv210_restart(enum reboot_mode mode, const char *cmd)
 149{
 150        __raw_writel(0x1, S5P_SWRESET);
 151}
 152
 153static struct samsung_pwm_variant s5pv210_pwm_variant = {
 154        .bits           = 32,
 155        .div_base       = 0,
 156        .has_tint_cstat = true,
 157        .tclk_mask      = (1 << 5),
 158};
 159
 160void __init samsung_set_timer_source(unsigned int event, unsigned int source)
 161{
 162        s5pv210_pwm_variant.output_mask = BIT(SAMSUNG_PWM_NUM) - 1;
 163        s5pv210_pwm_variant.output_mask &= ~(BIT(event) | BIT(source));
 164}
 165
 166void __init samsung_timer_init(void)
 167{
 168        unsigned int timer_irqs[SAMSUNG_PWM_NUM] = {
 169                IRQ_TIMER0_VIC, IRQ_TIMER1_VIC, IRQ_TIMER2_VIC,
 170                IRQ_TIMER3_VIC, IRQ_TIMER4_VIC,
 171        };
 172
 173        samsung_pwm_clocksource_init(S3C_VA_TIMER,
 174                                        timer_irqs, &s5pv210_pwm_variant);
 175}
 176
 177/*
 178 * s5pv210_map_io
 179 *
 180 * register the standard cpu IO areas
 181 */
 182
 183void __init s5pv210_init_io(struct map_desc *mach_desc, int size)
 184{
 185        /* initialize the io descriptors we need for initialization */
 186        iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc));
 187        if (mach_desc)
 188                iotable_init(mach_desc, size);
 189
 190        /* detect cpu id and rev. */
 191        s5p_init_cpu(S5P_VA_CHIPID);
 192
 193        s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));
 194
 195        samsung_pwm_set_platdata(&s5pv210_pwm_variant);
 196}
 197
 198void __init s5pv210_map_io(void)
 199{
 200        /* initialise device information early */
 201        s5pv210_default_sdhci0();
 202        s5pv210_default_sdhci1();
 203        s5pv210_default_sdhci2();
 204        s5pv210_default_sdhci3();
 205
 206        s3c_adc_setname("samsung-adc-v3");
 207
 208        s3c_cfcon_setname("s5pv210-pata");
 209
 210        s3c_fimc_setname(0, "s5pv210-fimc");
 211        s3c_fimc_setname(1, "s5pv210-fimc");
 212        s3c_fimc_setname(2, "s5pv210-fimc");
 213
 214        /* the i2c devices are directly compatible with s3c2440 */
 215        s3c_i2c0_setname("s3c2440-i2c");
 216        s3c_i2c1_setname("s3c2440-i2c");
 217        s3c_i2c2_setname("s3c2440-i2c");
 218
 219        s3c_fb_setname("s5pv210-fb");
 220
 221        /* Use s5pv210-keypad instead of samsung-keypad */
 222        samsung_keypad_setname("s5pv210-keypad");
 223
 224        /* setup TV devices */
 225        s5p_hdmi_setname("s5pv210-hdmi");
 226
 227        s3c64xx_spi_setname("s5pv210-spi");
 228}
 229
 230void __init s5pv210_init_clocks(int xtal)
 231{
 232        printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
 233
 234        s3c24xx_register_baseclocks(xtal);
 235        s5p_register_clocks(xtal);
 236        s5pv210_register_clocks();
 237        s5pv210_setup_clocks();
 238}
 239
 240void __init s5pv210_init_irq(void)
 241{
 242        u32 vic[4];     /* S5PV210 supports 4 VIC */
 243
 244        /* All the VICs are fully populated. */
 245        vic[0] = ~0;
 246        vic[1] = ~0;
 247        vic[2] = ~0;
 248        vic[3] = ~0;
 249
 250        s5p_init_irq(vic, ARRAY_SIZE(vic));
 251}
 252
 253struct bus_type s5pv210_subsys = {
 254        .name           = "s5pv210-core",
 255        .dev_name       = "s5pv210-core",
 256};
 257
 258static struct device s5pv210_dev = {
 259        .bus    = &s5pv210_subsys,
 260};
 261
 262static int __init s5pv210_core_init(void)
 263{
 264        return subsys_system_register(&s5pv210_subsys, NULL);
 265}
 266core_initcall(s5pv210_core_init);
 267
 268int __init s5pv210_init(void)
 269{
 270        printk(KERN_INFO "S5PV210: Initializing architecture\n");
 271        return device_register(&s5pv210_dev);
 272}
 273
 274/* uart registration process */
 275
 276void __init s5pv210_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 277{
 278        s3c24xx_init_uartdevs("s5pv210-uart", s5p_uart_resources, cfg, no);
 279}
 280