arch/arm/mach-s3c24xx/mach-vr1000.c

   1 /*
   2  * Copyright (c) 2003-2008 Simtec Electronics
   3  *   Ben Dooks <ben@simtec.co.uk>
   4  *
   5  * Machine support for Thorcom VR1000 board. Designed for Thorcom by
   6  * Simtec Electronics, http://www.simtec.co.uk/
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12 */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/types.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/list.h>
  18 #include <linux/timer.h>
  19 #include <linux/init.h>
  20 #include <linux/gpio.h>
  21 #include <linux/dm9000.h>
  22 #include <linux/i2c.h>
  23
  24 #include <linux/serial.h>
  25 #include <linux/tty.h>
  26 #include <linux/serial_8250.h>
  27 #include <linux/serial_reg.h>
  28 #include <linux/io.h>
  29
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32 #include <asm/mach/irq.h>
  33
  34 #include <asm/irq.h>
  35 #include <asm/mach-types.h>
  36
  37 #include <linux/platform_data/leds-s3c24xx.h>
  38 #include <linux/platform_data/i2c-s3c2410.h>
  39 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
  40
  41 #include <mach/hardware.h>
  42 #include <mach/regs-gpio.h>
  43
  44 #include <plat/clock.h>
  45 #include <plat/cpu.h>
  46 #include <plat/devs.h>
  47 #include <plat/regs-serial.h>
  48 #include <plat/samsung-time.h>
  49
  50 #include "bast.h"
  51 #include "common.h"
  52 #include "simtec.h"
  53 #include "vr1000.h"
  54
  55 /* macros for virtual address mods for the io space entries */
  56 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
  57 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
  58 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
  59 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
  60
  61 /* macros to modify the physical addresses for io space */
  62
  63 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
  64 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
  65 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
  66 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
  67
  68 static struct map_desc vr1000_iodesc[] __initdata = {
  69   /* ISA IO areas */
  70   {
  71           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
  72           .pfn          = PA_CS2(BAST_PA_ISAIO),
  73           .length       = SZ_16M,
  74           .type         = MT_DEVICE,
  75   }, {
  76           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
  77           .pfn          = PA_CS3(BAST_PA_ISAIO),
  78           .length       = SZ_16M,
  79           .type         = MT_DEVICE,
  80   },
  81
  82   /*  CPLD control registers, and external interrupt controls */
  83   {
  84           .virtual      = (u32)VR1000_VA_CTRL1,
  85           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
  86           .length       = SZ_1M,
  87           .type         = MT_DEVICE,
  88   }, {
  89           .virtual      = (u32)VR1000_VA_CTRL2,
  90           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
  91           .length       = SZ_1M,
  92           .type         = MT_DEVICE,
  93   }, {
  94           .virtual      = (u32)VR1000_VA_CTRL3,
  95           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
  96           .length       = SZ_1M,
  97           .type         = MT_DEVICE,
  98   }, {
  99           .virtual      = (u32)VR1000_VA_CTRL4,
 100           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
 101           .length       = SZ_1M,
 102           .type         = MT_DEVICE,
 103   },
 104 };
 105
 106 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 107 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 108 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 109
 110 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 111         [0] = {
 112                 .hwport      = 0,
 113                 .flags       = 0,
 114                 .ucon        = UCON,
 115                 .ulcon       = ULCON,
 116                 .ufcon       = UFCON,
 117         },
 118         [1] = {
 119                 .hwport      = 1,
 120                 .flags       = 0,
 121                 .ucon        = UCON,
 122                 .ulcon       = ULCON,
 123                 .ufcon       = UFCON,
 124         },
 125         /* port 2 is not actually used */
 126         [2] = {
 127                 .hwport      = 2,
 128                 .flags       = 0,
 129                 .ucon        = UCON,
 130                 .ulcon       = ULCON,
 131                 .ufcon       = UFCON,
 132         }
 133 };
 134
 135 /* definitions for the vr1000 extra 16550 serial ports */
 136
 137 #define VR1000_BAUDBASE (3692307)
 138
 139 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 140
 141 static struct plat_serial8250_port serial_platform_data[] = {
 142         [0] = {
 143                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 144                 .irq            = VR1000_IRQ_SERIAL + 0,
 145                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 146                 .iotype         = UPIO_MEM,
 147                 .regshift       = 0,
 148                 .uartclk        = VR1000_BAUDBASE,
 149         },
 150         [1] = {
 151                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 152                 .irq            = VR1000_IRQ_SERIAL + 1,
 153                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 154                 .iotype         = UPIO_MEM,
 155                 .regshift       = 0,
 156                 .uartclk        = VR1000_BAUDBASE,
 157         },
 158         [2] = {
 159                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 160                 .irq            = VR1000_IRQ_SERIAL + 2,
 161                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 162                 .iotype         = UPIO_MEM,
 163                 .regshift       = 0,
 164                 .uartclk        = VR1000_BAUDBASE,
 165         },
 166         [3] = {
 167                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 168                 .irq            = VR1000_IRQ_SERIAL + 3,
 169                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 170                 .iotype         = UPIO_MEM,
 171                 .regshift       = 0,
 172                 .uartclk        = VR1000_BAUDBASE,
 173         },
 174         { },
 175 };
 176
 177 static struct platform_device serial_device = {
 178         .name                   = "serial8250",
 179         .id                     = PLAT8250_DEV_PLATFORM,
 180         .dev                    = {
 181                 .platform_data  = serial_platform_data,
 182         },
 183 };
 184
 185 /* DM9000 ethernet devices */
 186
 187 static struct resource vr1000_dm9k0_resource[] = {
 188         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
 189         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
 190         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000A, 1, NULL, IORESOURCE_IRQ \
 191                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 192 };
 193
 194 static struct resource vr1000_dm9k1_resource[] = {
 195         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
 196         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
 197         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000N, 1, NULL, IORESOURCE_IRQ \
 198                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 199 };
 200
 201 /* for the moment we limit ourselves to 16bit IO until some
 202  * better IO routines can be written and tested
 203 */
 204
 205 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 206         .flags          = DM9000_PLATF_16BITONLY,
 207 };
 208
 209 static struct platform_device vr1000_dm9k0 = {
 210         .name           = "dm9000",
 211         .id             = 0,
 212         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 213         .resource       = vr1000_dm9k0_resource,
 214         .dev            = {
 215                 .platform_data = &vr1000_dm9k_platdata,
 216         }
 217 };
 218
 219 static struct platform_device vr1000_dm9k1 = {
 220         .name           = "dm9000",
 221         .id             = 1,
 222         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 223         .resource       = vr1000_dm9k1_resource,
 224         .dev            = {
 225                 .platform_data = &vr1000_dm9k_platdata,
 226         }
 227 };
 228
 229 /* LEDS */
 230
 231 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 232         .name           = "led1",
 233         .gpio           = S3C2410_GPB(0),
 234         .def_trigger    = "",
 235 };
 236
 237 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 238         .name           = "led2",
 239         .gpio           = S3C2410_GPB(1),
 240         .def_trigger    = "",
 241 };
 242
 243 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 244         .name           = "led3",
 245         .gpio           = S3C2410_GPB(2),
 246         .def_trigger    = "",
 247 };
 248
 249 static struct platform_device vr1000_led1 = {
 250         .name           = "s3c24xx_led",
 251         .id             = 1,
 252         .dev            = {
 253                 .platform_data  = &vr1000_led1_pdata,
 254         },
 255 };
 256
 257 static struct platform_device vr1000_led2 = {
 258         .name           = "s3c24xx_led",
 259         .id             = 2,
 260         .dev            = {
 261                 .platform_data  = &vr1000_led2_pdata,
 262         },
 263 };
 264
 265 static struct platform_device vr1000_led3 = {
 266         .name           = "s3c24xx_led",
 267         .id             = 3,
 268         .dev            = {
 269                 .platform_data  = &vr1000_led3_pdata,
 270         },
 271 };
 272
 273 /* I2C devices. */
 274
 275 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
 276         {
 277                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 278         }, {
 279                 I2C_BOARD_INFO("tmp101", 0x48),
 280         }, {
 281                 I2C_BOARD_INFO("m41st87", 0x68),
 282         },
 283 };
 284
 285 /* devices for this board */
 286
 287 static struct platform_device *vr1000_devices[] __initdata = {
 288         &s3c_device_ohci,
 289         &s3c_device_lcd,
 290         &s3c_device_wdt,
 291         &s3c_device_i2c0,
 292         &s3c_device_adc,
 293         &serial_device,
 294         &vr1000_dm9k0,
 295         &vr1000_dm9k1,
 296         &vr1000_led1,
 297         &vr1000_led2,
 298         &vr1000_led3,
 299 };
 300
 301 static struct clk *vr1000_clocks[] __initdata = {
 302         &s3c24xx_dclk0,
 303         &s3c24xx_dclk1,
 304         &s3c24xx_clkout0,
 305         &s3c24xx_clkout1,
 306         &s3c24xx_uclk,
 307 };
 308
 309 static void vr1000_power_off(void)
 310 {
 311         gpio_direction_output(S3C2410_GPB(9), 1);
 312 }
 313
 314 static void __init vr1000_map_io(void)
 315 {
 316         /* initialise clock sources */
 317
 318         s3c24xx_dclk0.parent = &clk_upll;
 319         s3c24xx_dclk0.rate   = 12*1000*1000;
 320
 321         s3c24xx_dclk1.parent = NULL;
 322         s3c24xx_dclk1.rate   = 3692307;
 323
 324         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
 325         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
 326
 327         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
 328
 329         s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks));
 330
 331         pm_power_off = vr1000_power_off;
 332
 333         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 334         s3c24xx_init_clocks(0);
 335         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 336         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 337 }
 338
 339 static void __init vr1000_init(void)
 340 {
 341         s3c_i2c0_set_platdata(NULL);
 342         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 343
 344         i2c_register_board_info(0, vr1000_i2c_devs,
 345                                 ARRAY_SIZE(vr1000_i2c_devs));
 346
 347         nor_simtec_init();
 348         simtec_audio_add(NULL, true, NULL);
 349
 350         WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
 351 }
 352
 353 MACHINE_START(VR1000, "Thorcom-VR1000")
 354         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 355         .atag_offset    = 0x100,
 356         .map_io         = vr1000_map_io,
 357         .init_machine   = vr1000_init,
 358         .init_irq       = s3c2410_init_irq,
 359         .init_time      = samsung_timer_init,
 360         .restart        = s3c2410_restart,
 361 MACHINE_END