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 <linux/platform_device.h>
  23 #include <linux/sched.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/serial_core.h>
  26
  27 #include <asm/proc-fns.h>
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/map.h>
  30 #include <asm/mach/irq.h>
  31
  32 #include <mach/map.h>
  33 #include <mach/regs-clock.h>
  34
  35 #include <plat/cpu.h>
  36 #include <plat/clock.h>
  37 #include <plat/devs.h>
  38 #include <plat/sdhci.h>
  39 #include <plat/adc-core.h>
  40 #include <plat/ata-core.h>
  41 #include <plat/fb-core.h>
  42 #include <plat/fimc-core.h>
  43 #include <plat/iic-core.h>
  44 #include <plat/keypad-core.h>
  45 #include <plat/tv-core.h>
  46 #include <plat/regs-serial.h>
  47
  48 #include "common.h"
  49
  50 static const char name_s5pv210[] = "S5PV210/S5PC110";
  51
  52 static struct cpu_table cpu_ids[] __initdata = {
  53         {
  54                 .idcode         = S5PV210_CPU_ID,
  55                 .idmask         = S5PV210_CPU_MASK,
  56                 .map_io         = s5pv210_map_io,
  57                 .init_clocks    = s5pv210_init_clocks,
  58                 .init_uarts     = s5pv210_init_uarts,
  59                 .init           = s5pv210_init,
  60                 .name           = name_s5pv210,
  61         },
  62 };
  63
  64 /* Initial IO mappings */
  65
  66 static struct map_desc s5pv210_iodesc[] __initdata = {
  67         {
  68                 .virtual        = (unsigned long)S5P_VA_CHIPID,
  69                 .pfn            = __phys_to_pfn(S5PV210_PA_CHIPID),
  70                 .length         = SZ_4K,
  71                 .type           = MT_DEVICE,
  72         }, {
  73                 .virtual        = (unsigned long)S3C_VA_SYS,
  74                 .pfn            = __phys_to_pfn(S5PV210_PA_SYSCON),
  75                 .length         = SZ_64K,
  76                 .type           = MT_DEVICE,
  77         }, {
  78                 .virtual        = (unsigned long)S3C_VA_TIMER,
  79                 .pfn            = __phys_to_pfn(S5PV210_PA_TIMER),
  80                 .length         = SZ_16K,
  81                 .type           = MT_DEVICE,
  82         }, {
  83                 .virtual        = (unsigned long)S3C_VA_WATCHDOG,
  84                 .pfn            = __phys_to_pfn(S5PV210_PA_WATCHDOG),
  85                 .length         = SZ_4K,
  86                 .type           = MT_DEVICE,
  87         }, {
  88                 .virtual        = (unsigned long)S5P_VA_SROMC,
  89                 .pfn            = __phys_to_pfn(S5PV210_PA_SROMC),
  90                 .length         = SZ_4K,
  91                 .type           = MT_DEVICE,
  92         }, {
  93                 .virtual        = (unsigned long)S5P_VA_SYSTIMER,
  94                 .pfn            = __phys_to_pfn(S5PV210_PA_SYSTIMER),
  95                 .length         = SZ_4K,
  96                 .type           = MT_DEVICE,
  97         }, {
  98                 .virtual        = (unsigned long)S5P_VA_GPIO,
  99                 .pfn            = __phys_to_pfn(S5PV210_PA_GPIO),
 100                 .length         = SZ_4K,
 101                 .type           = MT_DEVICE,
 102         }, {
 103                 .virtual        = (unsigned long)VA_VIC0,
 104                 .pfn            = __phys_to_pfn(S5PV210_PA_VIC0),
 105                 .length         = SZ_16K,
 106                 .type           = MT_DEVICE,
 107         }, {
 108                 .virtual        = (unsigned long)VA_VIC1,
 109                 .pfn            = __phys_to_pfn(S5PV210_PA_VIC1),
 110                 .length         = SZ_16K,
 111                 .type           = MT_DEVICE,
 112         }, {
 113                 .virtual        = (unsigned long)VA_VIC2,
 114                 .pfn            = __phys_to_pfn(S5PV210_PA_VIC2),
 115                 .length         = SZ_16K,
 116                 .type           = MT_DEVICE,
 117         }, {
 118                 .virtual        = (unsigned long)VA_VIC3,
 119                 .pfn            = __phys_to_pfn(S5PV210_PA_VIC3),
 120                 .length         = SZ_16K,
 121                 .type           = MT_DEVICE,
 122         }, {
 123                 .virtual        = (unsigned long)S3C_VA_UART,
 124                 .pfn            = __phys_to_pfn(S3C_PA_UART),
 125                 .length         = SZ_512K,
 126                 .type           = MT_DEVICE,
 127         }, {
 128                 .virtual        = (unsigned long)S5P_VA_DMC0,
 129                 .pfn            = __phys_to_pfn(S5PV210_PA_DMC0),
 130                 .length         = SZ_4K,
 131                 .type           = MT_DEVICE,
 132         }, {
 133                 .virtual        = (unsigned long)S5P_VA_DMC1,
 134                 .pfn            = __phys_to_pfn(S5PV210_PA_DMC1),
 135                 .length         = SZ_4K,
 136                 .type           = MT_DEVICE,
 137         }, {
 138                 .virtual        = (unsigned long)S3C_VA_USB_HSPHY,
 139                 .pfn            =__phys_to_pfn(S5PV210_PA_HSPHY),
 140                 .length         = SZ_4K,
 141                 .type           = MT_DEVICE,
 142         }
 143 };
 144
 145 static void s5pv210_idle(void)
 146 {
 147         if (!need_resched())
 148                 cpu_do_idle();
 149
 150         local_irq_enable();
 151 }
 152
 153 void s5pv210_restart(char mode, const char *cmd)
 154 {
 155         __raw_writel(0x1, S5P_SWRESET);
 156 }
 157
 158 /*
 159  * s5pv210_map_io
 160  *
 161  * register the standard cpu IO areas
 162  */
 163
 164 void __init s5pv210_init_io(struct map_desc *mach_desc, int size)
 165 {
 166         /* initialize the io descriptors we need for initialization */
 167         iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc));
 168         if (mach_desc)
 169                 iotable_init(mach_desc, size);
 170
 171         /* detect cpu id and rev. */
 172         s5p_init_cpu(S5P_VA_CHIPID);
 173
 174         s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));
 175 }
 176
 177 void __init s5pv210_map_io(void)
 178 {
 179         init_consistent_dma_size(14 << 20);
 180
 181         /* initialise device information early */
 182         s5pv210_default_sdhci0();
 183         s5pv210_default_sdhci1();
 184         s5pv210_default_sdhci2();
 185         s5pv210_default_sdhci3();
 186
 187         s3c_adc_setname("samsung-adc-v3");
 188
 189         s3c_cfcon_setname("s5pv210-pata");
 190
 191         s3c_fimc_setname(0, "s5pv210-fimc");
 192         s3c_fimc_setname(1, "s5pv210-fimc");
 193         s3c_fimc_setname(2, "s5pv210-fimc");
 194
 195         /* the i2c devices are directly compatible with s3c2440 */
 196         s3c_i2c0_setname("s3c2440-i2c");
 197         s3c_i2c1_setname("s3c2440-i2c");
 198         s3c_i2c2_setname("s3c2440-i2c");
 199
 200         s3c_fb_setname("s5pv210-fb");
 201
 202         /* Use s5pv210-keypad instead of samsung-keypad */
 203         samsung_keypad_setname("s5pv210-keypad");
 204
 205         /* setup TV devices */
 206         s5p_hdmi_setname("s5pv210-hdmi");
 207 }
 208
 209 void __init s5pv210_init_clocks(int xtal)
 210 {
 211         printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
 212
 213         s3c24xx_register_baseclocks(xtal);
 214         s5p_register_clocks(xtal);
 215         s5pv210_register_clocks();
 216         s5pv210_setup_clocks();
 217 }
 218
 219 void __init s5pv210_init_irq(void)
 220 {
 221         u32 vic[4];     /* S5PV210 supports 4 VIC */
 222
 223         /* All the VICs are fully populated. */
 224         vic[0] = ~0;
 225         vic[1] = ~0;
 226         vic[2] = ~0;
 227         vic[3] = ~0;
 228
 229         s5p_init_irq(vic, ARRAY_SIZE(vic));
 230 }
 231
 232 struct bus_type s5pv210_subsys = {
 233         .name           = "s5pv210-core",
 234         .dev_name       = "s5pv210-core",
 235 };
 236
 237 static struct device s5pv210_dev = {
 238         .bus    = &s5pv210_subsys,
 239 };
 240
 241 static int __init s5pv210_core_init(void)
 242 {
 243         return subsys_system_register(&s5pv210_subsys, NULL);
 244 }
 245 core_initcall(s5pv210_core_init);
 246
 247 int __init s5pv210_init(void)
 248 {
 249         printk(KERN_INFO "S5PV210: Initializing architecture\n");
 250
 251         /* set idle function */
 252         pm_idle = s5pv210_idle;
 253
 254         return device_register(&s5pv210_dev);
 255 }
 256
 257 static struct s3c24xx_uart_clksrc s5pv210_serial_clocks[] = {
 258         [0] = {
 259                 .name           = "pclk",
 260                 .divisor        = 1,
 261                 .min_baud       = 0,
 262                 .max_baud       = 0,
 263         },
 264 };
 265
 266 /* uart registration process */
 267
 268 void __init s5pv210_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 269 {
 270         struct s3c2410_uartcfg *tcfg = cfg;
 271         u32 ucnt;
 272
 273         for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
 274                 if (!tcfg->clocks) {
 275                         tcfg->clocks = s5pv210_serial_clocks;
 276                         tcfg->clocks_size = ARRAY_SIZE(s5pv210_serial_clocks);
 277                 }
 278         }
 279
 280         s3c24xx_init_uartdevs("s5pv210-uart", s5p_uart_resources, cfg, no);
 281 }