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
  49 #include "bast.h"
  50 #include "common.h"
  51 #include "simtec.h"
  52 #include "vr1000.h"
  53
  54 /* macros for virtual address mods for the io space entries */
  55 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
  56 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
  57 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
  58 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
  59
  60 /* macros to modify the physical addresses for io space */
  61
  62 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
  63 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
  64 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
  65 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
  66
  67 static struct map_desc vr1000_iodesc[] __initdata = {
  68   /* ISA IO areas */
  69   {
  70           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
  71           .pfn          = PA_CS2(BAST_PA_ISAIO),
  72           .length       = SZ_16M,
  73           .type         = MT_DEVICE,
  74   }, {
  75           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
  76           .pfn          = PA_CS3(BAST_PA_ISAIO),
  77           .length       = SZ_16M,
  78           .type         = MT_DEVICE,
  79   },
  80
  81   /*  CPLD control registers, and external interrupt controls */
  82   {
  83           .virtual      = (u32)VR1000_VA_CTRL1,
  84           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
  85           .length       = SZ_1M,
  86           .type         = MT_DEVICE,
  87   }, {
  88           .virtual      = (u32)VR1000_VA_CTRL2,
  89           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
  90           .length       = SZ_1M,
  91           .type         = MT_DEVICE,
  92   }, {
  93           .virtual      = (u32)VR1000_VA_CTRL3,
  94           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
  95           .length       = SZ_1M,
  96           .type         = MT_DEVICE,
  97   }, {
  98           .virtual      = (u32)VR1000_VA_CTRL4,
  99           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
 100           .length       = SZ_1M,
 101           .type         = MT_DEVICE,
 102   },
 103 };
 104
 105 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 106 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 107 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 108
 109 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 110         [0] = {
 111                 .hwport      = 0,
 112                 .flags       = 0,
 113                 .ucon        = UCON,
 114                 .ulcon       = ULCON,
 115                 .ufcon       = UFCON,
 116         },
 117         [1] = {
 118                 .hwport      = 1,
 119                 .flags       = 0,
 120                 .ucon        = UCON,
 121                 .ulcon       = ULCON,
 122                 .ufcon       = UFCON,
 123         },
 124         /* port 2 is not actually used */
 125         [2] = {
 126                 .hwport      = 2,
 127                 .flags       = 0,
 128                 .ucon        = UCON,
 129                 .ulcon       = ULCON,
 130                 .ufcon       = UFCON,
 131         }
 132 };
 133
 134 /* definitions for the vr1000 extra 16550 serial ports */
 135
 136 #define VR1000_BAUDBASE (3692307)
 137
 138 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 139
 140 static struct plat_serial8250_port serial_platform_data[] = {
 141         [0] = {
 142                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 143                 .irq            = VR1000_IRQ_SERIAL + 0,
 144                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 145                 .iotype         = UPIO_MEM,
 146                 .regshift       = 0,
 147                 .uartclk        = VR1000_BAUDBASE,
 148         },
 149         [1] = {
 150                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 151                 .irq            = VR1000_IRQ_SERIAL + 1,
 152                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 153                 .iotype         = UPIO_MEM,
 154                 .regshift       = 0,
 155                 .uartclk        = VR1000_BAUDBASE,
 156         },
 157         [2] = {
 158                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 159                 .irq            = VR1000_IRQ_SERIAL + 2,
 160                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 161                 .iotype         = UPIO_MEM,
 162                 .regshift       = 0,
 163                 .uartclk        = VR1000_BAUDBASE,
 164         },
 165         [3] = {
 166                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 167                 .irq            = VR1000_IRQ_SERIAL + 3,
 168                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 169                 .iotype         = UPIO_MEM,
 170                 .regshift       = 0,
 171                 .uartclk        = VR1000_BAUDBASE,
 172         },
 173         { },
 174 };
 175
 176 static struct platform_device serial_device = {
 177         .name                   = "serial8250",
 178         .id                     = PLAT8250_DEV_PLATFORM,
 179         .dev                    = {
 180                 .platform_data  = serial_platform_data,
 181         },
 182 };
 183
 184 /* DM9000 ethernet devices */
 185
 186 static struct resource vr1000_dm9k0_resource[] = {
 187         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
 188         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
 189         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000A, 1, NULL, IORESOURCE_IRQ \
 190                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 191 };
 192
 193 static struct resource vr1000_dm9k1_resource[] = {
 194         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
 195         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
 196         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000N, 1, NULL, IORESOURCE_IRQ \
 197                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 198 };
 199
 200 /* for the moment we limit ourselves to 16bit IO until some
 201  * better IO routines can be written and tested
 202 */
 203
 204 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 205         .flags          = DM9000_PLATF_16BITONLY,
 206 };
 207
 208 static struct platform_device vr1000_dm9k0 = {
 209         .name           = "dm9000",
 210         .id             = 0,
 211         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 212         .resource       = vr1000_dm9k0_resource,
 213         .dev            = {
 214                 .platform_data = &vr1000_dm9k_platdata,
 215         }
 216 };
 217
 218 static struct platform_device vr1000_dm9k1 = {
 219         .name           = "dm9000",
 220         .id             = 1,
 221         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 222         .resource       = vr1000_dm9k1_resource,
 223         .dev            = {
 224                 .platform_data = &vr1000_dm9k_platdata,
 225         }
 226 };
 227
 228 /* LEDS */
 229
 230 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 231         .name           = "led1",
 232         .gpio           = S3C2410_GPB(0),
 233         .def_trigger    = "",
 234 };
 235
 236 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 237         .name           = "led2",
 238         .gpio           = S3C2410_GPB(1),
 239         .def_trigger    = "",
 240 };
 241
 242 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 243         .name           = "led3",
 244         .gpio           = S3C2410_GPB(2),
 245         .def_trigger    = "",
 246 };
 247
 248 static struct platform_device vr1000_led1 = {
 249         .name           = "s3c24xx_led",
 250         .id             = 1,
 251         .dev            = {
 252                 .platform_data  = &vr1000_led1_pdata,
 253         },
 254 };
 255
 256 static struct platform_device vr1000_led2 = {
 257         .name           = "s3c24xx_led",
 258         .id             = 2,
 259         .dev            = {
 260                 .platform_data  = &vr1000_led2_pdata,
 261         },
 262 };
 263
 264 static struct platform_device vr1000_led3 = {
 265         .name           = "s3c24xx_led",
 266         .id             = 3,
 267         .dev            = {
 268                 .platform_data  = &vr1000_led3_pdata,
 269         },
 270 };
 271
 272 /* I2C devices. */
 273
 274 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
 275         {
 276                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 277         }, {
 278                 I2C_BOARD_INFO("tmp101", 0x48),
 279         }, {
 280                 I2C_BOARD_INFO("m41st87", 0x68),
 281         },
 282 };
 283
 284 /* devices for this board */
 285
 286 static struct platform_device *vr1000_devices[] __initdata = {
 287         &s3c_device_ohci,
 288         &s3c_device_lcd,
 289         &s3c_device_wdt,
 290         &s3c_device_i2c0,
 291         &s3c_device_adc,
 292         &serial_device,
 293         &vr1000_dm9k0,
 294         &vr1000_dm9k1,
 295         &vr1000_led1,
 296         &vr1000_led2,
 297         &vr1000_led3,
 298 };
 299
 300 static struct clk *vr1000_clocks[] __initdata = {
 301         &s3c24xx_dclk0,
 302         &s3c24xx_dclk1,
 303         &s3c24xx_clkout0,
 304         &s3c24xx_clkout1,
 305         &s3c24xx_uclk,
 306 };
 307
 308 static void vr1000_power_off(void)
 309 {
 310         gpio_direction_output(S3C2410_GPB(9), 1);
 311 }
 312
 313 static void __init vr1000_map_io(void)
 314 {
 315         /* initialise clock sources */
 316
 317         s3c24xx_dclk0.parent = &clk_upll;
 318         s3c24xx_dclk0.rate   = 12*1000*1000;
 319
 320         s3c24xx_dclk1.parent = NULL;
 321         s3c24xx_dclk1.rate   = 3692307;
 322
 323         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
 324         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
 325
 326         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
 327
 328         s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks));
 329
 330         pm_power_off = vr1000_power_off;
 331
 332         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 333         s3c24xx_init_clocks(0);
 334         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 335 }
 336
 337 static void __init vr1000_init(void)
 338 {
 339         s3c_i2c0_set_platdata(NULL);
 340         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 341
 342         i2c_register_board_info(0, vr1000_i2c_devs,
 343                                 ARRAY_SIZE(vr1000_i2c_devs));
 344
 345         nor_simtec_init();
 346         simtec_audio_add(NULL, true, NULL);
 347
 348         WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
 349 }
 350
 351 MACHINE_START(VR1000, "Thorcom-VR1000")
 352         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 353         .atag_offset    = 0x100,
 354         .map_io         = vr1000_map_io,
 355         .init_machine   = vr1000_init,
 356         .init_irq       = s3c24xx_init_irq,
 357         .init_time      = s3c24xx_timer_init,
 358         .restart        = s3c2410_restart,
 359 MACHINE_END