arch/arm/mach-s5pv210/common.c

   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 #include <linux/serial_s3c.h>
  28
  29 #include <asm/proc-fns.h>
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32 #include <asm/mach/irq.h>
  33
  34 #include <mach/map.h>
  35 #include <mach/regs-clock.h>
  36
  37 #include <plat/cpu.h>
  38 #include <plat/clock.h>
  39 #include <plat/devs.h>
  40 #include <plat/sdhci.h>
  41 #include <plat/adc-core.h>
  42 #include <plat/ata-core.h>
  43 #include <plat/fb-core.h>
  44 #include <plat/fimc-core.h>
  45 #include <plat/iic-core.h>
  46 #include <plat/keypad-core.h>
  47 #include <plat/pwm-core.h>
  48 #include <plat/tv-core.h>
  49 #include <plat/spi-core.h>
  50
  51 #include "common.h"
  52
  53 static const char name_s5pv210[] = "S5PV210/S5PC110";
  54
  55 static 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
  69 static 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
 148 void s5pv210_restart(enum reboot_mode mode, const char *cmd)
 149 {
 150         __raw_writel(0x1, S5P_SWRESET);
 151 }
 152
 153 static 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
 160 void __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
 166 void __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
 183 void __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
 198 void __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
 230 void __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
 240 void __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
 253 struct bus_type s5pv210_subsys = {
 254         .name           = "s5pv210-core",
 255         .dev_name       = "s5pv210-core",
 256 };
 257
 258 static struct device s5pv210_dev = {
 259         .bus    = &s5pv210_subsys,
 260 };
 261
 262 static int __init s5pv210_core_init(void)
 263 {
 264         return subsys_system_register(&s5pv210_subsys, NULL);
 265 }
 266 core_initcall(s5pv210_core_init);
 267
 268 int __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
 276 void __init s5pv210_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 277 {
 278         s3c24xx_init_uartdevs("s5pv210-uart", s5p_uart_resources, cfg, no);
 279 }