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/sysdev.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/reset.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/tv-core.h>
  47 #include <plat/regs-serial.h>
  48
  49 #include "common.h"
  50
  51 static const char name_s5pv210[] = "S5PV210/S5PC110";
  52
  53 static struct cpu_table cpu_ids[] __initdata = {
  54         {
  55                 .idcode         = S5PV210_CPU_ID,
  56                 .idmask         = S5PV210_CPU_MASK,
  57                 .map_io         = s5pv210_map_io,
  58                 .init_clocks    = s5pv210_init_clocks,
  59                 .init_uarts     = s5pv210_init_uarts,
  60                 .init           = s5pv210_init,
  61                 .name           = name_s5pv210,
  62         },
  63 };
  64
  65 /* Initial IO mappings */
  66
  67 static struct map_desc s5pv210_iodesc[] __initdata = {
  68         {
  69                 .virtual        = (unsigned long)S5P_VA_CHIPID,
  70                 .pfn            = __phys_to_pfn(S5PV210_PA_CHIPID),
  71                 .length         = SZ_4K,
  72                 .type           = MT_DEVICE,
  73         }, {
  74                 .virtual        = (unsigned long)S3C_VA_SYS,
  75                 .pfn            = __phys_to_pfn(S5PV210_PA_SYSCON),
  76                 .length         = SZ_64K,
  77                 .type           = MT_DEVICE,
  78         }, {
  79                 .virtual        = (unsigned long)S3C_VA_TIMER,
  80                 .pfn            = __phys_to_pfn(S5PV210_PA_TIMER),
  81                 .length         = SZ_16K,
  82                 .type           = MT_DEVICE,
  83         }, {
  84                 .virtual        = (unsigned long)S3C_VA_WATCHDOG,
  85                 .pfn            = __phys_to_pfn(S5PV210_PA_WATCHDOG),
  86                 .length         = SZ_4K,
  87                 .type           = MT_DEVICE,
  88         }, {
  89                 .virtual        = (unsigned long)S5P_VA_SROMC,
  90                 .pfn            = __phys_to_pfn(S5PV210_PA_SROMC),
  91                 .length         = SZ_4K,
  92                 .type           = MT_DEVICE,
  93         }, {
  94                 .virtual        = (unsigned long)S5P_VA_SYSTIMER,
  95                 .pfn            = __phys_to_pfn(S5PV210_PA_SYSTIMER),
  96                 .length         = SZ_4K,
  97                 .type           = MT_DEVICE,
  98         }, {
  99                 .virtual        = (unsigned long)S5P_VA_GPIO,
 100                 .pfn            = __phys_to_pfn(S5PV210_PA_GPIO),
 101                 .length         = SZ_4K,
 102                 .type           = MT_DEVICE,
 103         }, {
 104                 .virtual        = (unsigned long)VA_VIC0,
 105                 .pfn            = __phys_to_pfn(S5PV210_PA_VIC0),
 106                 .length         = SZ_16K,
 107                 .type           = MT_DEVICE,
 108         }, {
 109                 .virtual        = (unsigned long)VA_VIC1,
 110                 .pfn            = __phys_to_pfn(S5PV210_PA_VIC1),
 111                 .length         = SZ_16K,
 112                 .type           = MT_DEVICE,
 113         }, {
 114                 .virtual        = (unsigned long)VA_VIC2,
 115                 .pfn            = __phys_to_pfn(S5PV210_PA_VIC2),
 116                 .length         = SZ_16K,
 117                 .type           = MT_DEVICE,
 118         }, {
 119                 .virtual        = (unsigned long)VA_VIC3,
 120                 .pfn            = __phys_to_pfn(S5PV210_PA_VIC3),
 121                 .length         = SZ_16K,
 122                 .type           = MT_DEVICE,
 123         }, {
 124                 .virtual        = (unsigned long)S3C_VA_UART,
 125                 .pfn            = __phys_to_pfn(S3C_PA_UART),
 126                 .length         = SZ_512K,
 127                 .type           = MT_DEVICE,
 128         }, {
 129                 .virtual        = (unsigned long)S5P_VA_DMC0,
 130                 .pfn            = __phys_to_pfn(S5PV210_PA_DMC0),
 131                 .length         = SZ_4K,
 132                 .type           = MT_DEVICE,
 133         }, {
 134                 .virtual        = (unsigned long)S5P_VA_DMC1,
 135                 .pfn            = __phys_to_pfn(S5PV210_PA_DMC1),
 136                 .length         = SZ_4K,
 137                 .type           = MT_DEVICE,
 138         }, {
 139                 .virtual        = (unsigned long)S3C_VA_USB_HSPHY,
 140                 .pfn            =__phys_to_pfn(S5PV210_PA_HSPHY),
 141                 .length         = SZ_4K,
 142                 .type           = MT_DEVICE,
 143         }
 144 };
 145
 146 static void s5pv210_idle(void)
 147 {
 148         if (!need_resched())
 149                 cpu_do_idle();
 150
 151         local_irq_enable();
 152 }
 153
 154 static void s5pv210_sw_reset(void)
 155 {
 156         __raw_writel(0x1, S5P_SWRESET);
 157 }
 158
 159 /*
 160  * s5pv210_map_io
 161  *
 162  * register the standard cpu IO areas
 163  */
 164
 165 void __init s5pv210_init_io(struct map_desc *mach_desc, int size)
 166 {
 167         /* initialize the io descriptors we need for initialization */
 168         iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc));
 169         if (mach_desc)
 170                 iotable_init(mach_desc, size);
 171
 172         /* detect cpu id and rev. */
 173         s5p_init_cpu(S5P_VA_CHIPID);
 174
 175         s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));
 176 }
 177
 178 void __init s5pv210_map_io(void)
 179 {
 180         init_consistent_dma_size(14 << 20);
 181
 182         /* initialise device information early */
 183         s5pv210_default_sdhci0();
 184         s5pv210_default_sdhci1();
 185         s5pv210_default_sdhci2();
 186         s5pv210_default_sdhci3();
 187
 188         s3c_adc_setname("samsung-adc-v3");
 189
 190         s3c_cfcon_setname("s5pv210-pata");
 191
 192         s3c_fimc_setname(0, "s5pv210-fimc");
 193         s3c_fimc_setname(1, "s5pv210-fimc");
 194         s3c_fimc_setname(2, "s5pv210-fimc");
 195
 196         /* the i2c devices are directly compatible with s3c2440 */
 197         s3c_i2c0_setname("s3c2440-i2c");
 198         s3c_i2c1_setname("s3c2440-i2c");
 199         s3c_i2c2_setname("s3c2440-i2c");
 200
 201         s3c_fb_setname("s5pv210-fb");
 202
 203         /* Use s5pv210-keypad instead of samsung-keypad */
 204         samsung_keypad_setname("s5pv210-keypad");
 205
 206         /* setup TV devices */
 207         s5p_hdmi_setname("s5pv210-hdmi");
 208 }
 209
 210 void __init s5pv210_init_clocks(int xtal)
 211 {
 212         printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
 213
 214         s3c24xx_register_baseclocks(xtal);
 215         s5p_register_clocks(xtal);
 216         s5pv210_register_clocks();
 217         s5pv210_setup_clocks();
 218 }
 219
 220 void __init s5pv210_init_irq(void)
 221 {
 222         u32 vic[4];     /* S5PV210 supports 4 VIC */
 223
 224         /* All the VICs are fully populated. */
 225         vic[0] = ~0;
 226         vic[1] = ~0;
 227         vic[2] = ~0;
 228         vic[3] = ~0;
 229
 230         s5p_init_irq(vic, ARRAY_SIZE(vic));
 231 }
 232
 233 struct sysdev_class s5pv210_sysclass = {
 234         .name   = "s5pv210-core",
 235 };
 236
 237 static struct sys_device s5pv210_sysdev = {
 238         .cls    = &s5pv210_sysclass,
 239 };
 240
 241 static int __init s5pv210_core_init(void)
 242 {
 243         return sysdev_class_register(&s5pv210_sysclass);
 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         /* set sw_reset function */
 255         s5p_reset_hook = s5pv210_sw_reset;
 256
 257         return sysdev_register(&s5pv210_sysdev);
 258 }
 259
 260 static struct s3c24xx_uart_clksrc s5pv210_serial_clocks[] = {
 261         [0] = {
 262                 .name           = "pclk",
 263                 .divisor        = 1,
 264                 .min_baud       = 0,
 265                 .max_baud       = 0,
 266         },
 267 };
 268
 269 /* uart registration process */
 270
 271 void __init s5pv210_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 272 {
 273         struct s3c2410_uartcfg *tcfg = cfg;
 274         u32 ucnt;
 275
 276         for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
 277                 if (!tcfg->clocks) {
 278                         tcfg->clocks = s5pv210_serial_clocks;
 279                         tcfg->clocks_size = ARRAY_SIZE(s5pv210_serial_clocks);
 280                 }
 281         }
 282
 283         s3c24xx_init_uartdevs("s5pv210-uart", s5p_uart_resources, cfg, no);
 284 }