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/serial_s3c.h>
  29 #include <linux/io.h>
  30
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33 #include <asm/mach/irq.h>
  34
  35 #include <asm/irq.h>
  36 #include <asm/mach-types.h>
  37
  38 #include <linux/platform_data/leds-s3c24xx.h>
  39 #include <linux/platform_data/i2c-s3c2410.h>
  40 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
  41
  42 #include <mach/hardware.h>
  43 #include <mach/regs-gpio.h>
  44 #include <mach/gpio-samsung.h>
  45
  46 #include <plat/clock.h>
  47 #include <plat/cpu.h>
  48 #include <plat/devs.h>
  49 #include <plat/samsung-time.h>
  50
  51 #include "bast.h"
  52 #include "common.h"
  53 #include "simtec.h"
  54 #include "vr1000.h"
  55
  56 /* macros for virtual address mods for the io space entries */
  57 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
  58 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
  59 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
  60 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
  61
  62 /* macros to modify the physical addresses for io space */
  63
  64 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
  65 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
  66 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
  67 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
  68
  69 static struct map_desc vr1000_iodesc[] __initdata = {
  70   /* ISA IO areas */
  71   {
  72           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
  73           .pfn          = PA_CS2(BAST_PA_ISAIO),
  74           .length       = SZ_16M,
  75           .type         = MT_DEVICE,
  76   }, {
  77           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
  78           .pfn          = PA_CS3(BAST_PA_ISAIO),
  79           .length       = SZ_16M,
  80           .type         = MT_DEVICE,
  81   },
  82
  83   /*  CPLD control registers, and external interrupt controls */
  84   {
  85           .virtual      = (u32)VR1000_VA_CTRL1,
  86           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
  87           .length       = SZ_1M,
  88           .type         = MT_DEVICE,
  89   }, {
  90           .virtual      = (u32)VR1000_VA_CTRL2,
  91           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
  92           .length       = SZ_1M,
  93           .type         = MT_DEVICE,
  94   }, {
  95           .virtual      = (u32)VR1000_VA_CTRL3,
  96           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
  97           .length       = SZ_1M,
  98           .type         = MT_DEVICE,
  99   }, {
 100           .virtual      = (u32)VR1000_VA_CTRL4,
 101           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
 102           .length       = SZ_1M,
 103           .type         = MT_DEVICE,
 104   },
 105 };
 106
 107 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 108 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 109 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 110
 111 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 112         [0] = {
 113                 .hwport      = 0,
 114                 .flags       = 0,
 115                 .ucon        = UCON,
 116                 .ulcon       = ULCON,
 117                 .ufcon       = UFCON,
 118         },
 119         [1] = {
 120                 .hwport      = 1,
 121                 .flags       = 0,
 122                 .ucon        = UCON,
 123                 .ulcon       = ULCON,
 124                 .ufcon       = UFCON,
 125         },
 126         /* port 2 is not actually used */
 127         [2] = {
 128                 .hwport      = 2,
 129                 .flags       = 0,
 130                 .ucon        = UCON,
 131                 .ulcon       = ULCON,
 132                 .ufcon       = UFCON,
 133         }
 134 };
 135
 136 /* definitions for the vr1000 extra 16550 serial ports */
 137
 138 #define VR1000_BAUDBASE (3692307)
 139
 140 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 141
 142 static struct plat_serial8250_port serial_platform_data[] = {
 143         [0] = {
 144                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 145                 .irq            = VR1000_IRQ_SERIAL + 0,
 146                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 147                 .iotype         = UPIO_MEM,
 148                 .regshift       = 0,
 149                 .uartclk        = VR1000_BAUDBASE,
 150         },
 151         [1] = {
 152                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 153                 .irq            = VR1000_IRQ_SERIAL + 1,
 154                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 155                 .iotype         = UPIO_MEM,
 156                 .regshift       = 0,
 157                 .uartclk        = VR1000_BAUDBASE,
 158         },
 159         [2] = {
 160                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 161                 .irq            = VR1000_IRQ_SERIAL + 2,
 162                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 163                 .iotype         = UPIO_MEM,
 164                 .regshift       = 0,
 165                 .uartclk        = VR1000_BAUDBASE,
 166         },
 167         [3] = {
 168                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 169                 .irq            = VR1000_IRQ_SERIAL + 3,
 170                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 171                 .iotype         = UPIO_MEM,
 172                 .regshift       = 0,
 173                 .uartclk        = VR1000_BAUDBASE,
 174         },
 175         { },
 176 };
 177
 178 static struct platform_device serial_device = {
 179         .name                   = "serial8250",
 180         .id                     = PLAT8250_DEV_PLATFORM,
 181         .dev                    = {
 182                 .platform_data  = serial_platform_data,
 183         },
 184 };
 185
 186 /* DM9000 ethernet devices */
 187
 188 static struct resource vr1000_dm9k0_resource[] = {
 189         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
 190         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
 191         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000A, 1, NULL, IORESOURCE_IRQ \
 192                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 193 };
 194
 195 static struct resource vr1000_dm9k1_resource[] = {
 196         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
 197         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
 198         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000N, 1, NULL, IORESOURCE_IRQ \
 199                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 200 };
 201
 202 /* for the moment we limit ourselves to 16bit IO until some
 203  * better IO routines can be written and tested
 204 */
 205
 206 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 207         .flags          = DM9000_PLATF_16BITONLY,
 208 };
 209
 210 static struct platform_device vr1000_dm9k0 = {
 211         .name           = "dm9000",
 212         .id             = 0,
 213         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 214         .resource       = vr1000_dm9k0_resource,
 215         .dev            = {
 216                 .platform_data = &vr1000_dm9k_platdata,
 217         }
 218 };
 219
 220 static struct platform_device vr1000_dm9k1 = {
 221         .name           = "dm9000",
 222         .id             = 1,
 223         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 224         .resource       = vr1000_dm9k1_resource,
 225         .dev            = {
 226                 .platform_data = &vr1000_dm9k_platdata,
 227         }
 228 };
 229
 230 /* LEDS */
 231
 232 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 233         .name           = "led1",
 234         .gpio           = S3C2410_GPB(0),
 235         .def_trigger    = "",
 236 };
 237
 238 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 239         .name           = "led2",
 240         .gpio           = S3C2410_GPB(1),
 241         .def_trigger    = "",
 242 };
 243
 244 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 245         .name           = "led3",
 246         .gpio           = S3C2410_GPB(2),
 247         .def_trigger    = "",
 248 };
 249
 250 static struct platform_device vr1000_led1 = {
 251         .name           = "s3c24xx_led",
 252         .id             = 1,
 253         .dev            = {
 254                 .platform_data  = &vr1000_led1_pdata,
 255         },
 256 };
 257
 258 static struct platform_device vr1000_led2 = {
 259         .name           = "s3c24xx_led",
 260         .id             = 2,
 261         .dev            = {
 262                 .platform_data  = &vr1000_led2_pdata,
 263         },
 264 };
 265
 266 static struct platform_device vr1000_led3 = {
 267         .name           = "s3c24xx_led",
 268         .id             = 3,
 269         .dev            = {
 270                 .platform_data  = &vr1000_led3_pdata,
 271         },
 272 };
 273
 274 /* I2C devices. */
 275
 276 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
 277         {
 278                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 279         }, {
 280                 I2C_BOARD_INFO("tmp101", 0x48),
 281         }, {
 282                 I2C_BOARD_INFO("m41st87", 0x68),
 283         },
 284 };
 285
 286 /* devices for this board */
 287
 288 static struct platform_device *vr1000_devices[] __initdata = {
 289         &s3c_device_ohci,
 290         &s3c_device_lcd,
 291         &s3c_device_wdt,
 292         &s3c_device_i2c0,
 293         &s3c_device_adc,
 294         &serial_device,
 295         &vr1000_dm9k0,
 296         &vr1000_dm9k1,
 297         &vr1000_led1,
 298         &vr1000_led2,
 299         &vr1000_led3,
 300 };
 301
 302 static struct clk *vr1000_clocks[] __initdata = {
 303         &s3c24xx_dclk0,
 304         &s3c24xx_dclk1,
 305         &s3c24xx_clkout0,
 306         &s3c24xx_clkout1,
 307         &s3c24xx_uclk,
 308 };
 309
 310 static void vr1000_power_off(void)
 311 {
 312         gpio_direction_output(S3C2410_GPB(9), 1);
 313 }
 314
 315 static void __init vr1000_map_io(void)
 316 {
 317         /* initialise clock sources */
 318
 319         s3c24xx_dclk0.parent = &clk_upll;
 320         s3c24xx_dclk0.rate   = 12*1000*1000;
 321
 322         s3c24xx_dclk1.parent = NULL;
 323         s3c24xx_dclk1.rate   = 3692307;
 324
 325         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
 326         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
 327
 328         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
 329
 330         s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks));
 331
 332         pm_power_off = vr1000_power_off;
 333
 334         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 335         s3c24xx_init_clocks(0);
 336         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 337         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 338 }
 339
 340 static void __init vr1000_init(void)
 341 {
 342         s3c_i2c0_set_platdata(NULL);
 343         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 344
 345         i2c_register_board_info(0, vr1000_i2c_devs,
 346                                 ARRAY_SIZE(vr1000_i2c_devs));
 347
 348         nor_simtec_init();
 349         simtec_audio_add(NULL, true, NULL);
 350
 351         WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
 352 }
 353
 354 MACHINE_START(VR1000, "Thorcom-VR1000")
 355         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 356         .atag_offset    = 0x100,
 357         .map_io         = vr1000_map_io,
 358         .init_machine   = vr1000_init,
 359         .init_irq       = s3c2410_init_irq,
 360         .init_time      = samsung_timer_init,
 361         .restart        = s3c2410_restart,
 362 MACHINE_END