arch/arm/mach-s3c2410/mach-vr1000.c

   1 /* linux/arch/arm/mach-s3c2410/mach-vr1000.c
   2  *
   3  * Copyright (c) 2003-2008 Simtec Electronics
   4  *   Ben Dooks <ben@simtec.co.uk>
   5  *
   6  * Machine support for Thorcom VR1000 board. Designed for Thorcom by
   7  * Simtec Electronics, http://www.simtec.co.uk/
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13 */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/types.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/list.h>
  19 #include <linux/timer.h>
  20 #include <linux/init.h>
  21 #include <linux/gpio.h>
  22 #include <linux/dm9000.h>
  23 #include <linux/i2c.h>
  24
  25 #include <linux/serial.h>
  26 #include <linux/tty.h>
  27 #include <linux/serial_8250.h>
  28 #include <linux/serial_reg.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 <mach/bast-map.h>
  36 #include <mach/vr1000-map.h>
  37 #include <mach/vr1000-irq.h>
  38 #include <mach/vr1000-cpld.h>
  39
  40 #include <mach/hardware.h>
  41 #include <asm/irq.h>
  42 #include <asm/mach-types.h>
  43
  44 #include <plat/regs-serial.h>
  45 #include <mach/regs-gpio.h>
  46 #include <mach/leds-gpio.h>
  47
  48 #include <plat/clock.h>
  49 #include <plat/devs.h>
  50 #include <plat/cpu.h>
  51 #include <plat/iic.h>
  52 #include <plat/audio-simtec.h>
  53
  54 #include "usb-simtec.h"
  55 #include "nor-simtec.h"
  56 #include "common.h"
  57
  58 /* macros for virtual address mods for the io space entries */
  59 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
  60 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
  61 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
  62 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
  63
  64 /* macros to modify the physical addresses for io space */
  65
  66 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
  67 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
  68 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
  69 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
  70
  71 static struct map_desc vr1000_iodesc[] __initdata = {
  72   /* ISA IO areas */
  73   {
  74           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
  75           .pfn          = PA_CS2(BAST_PA_ISAIO),
  76           .length       = SZ_16M,
  77           .type         = MT_DEVICE,
  78   }, {
  79           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
  80           .pfn          = PA_CS3(BAST_PA_ISAIO),
  81           .length       = SZ_16M,
  82           .type         = MT_DEVICE,
  83   },
  84
  85   /*  CPLD control registers, and external interrupt controls */
  86   {
  87           .virtual      = (u32)VR1000_VA_CTRL1,
  88           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
  89           .length       = SZ_1M,
  90           .type         = MT_DEVICE,
  91   }, {
  92           .virtual      = (u32)VR1000_VA_CTRL2,
  93           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
  94           .length       = SZ_1M,
  95           .type         = MT_DEVICE,
  96   }, {
  97           .virtual      = (u32)VR1000_VA_CTRL3,
  98           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
  99           .length       = SZ_1M,
 100           .type         = MT_DEVICE,
 101   }, {
 102           .virtual      = (u32)VR1000_VA_CTRL4,
 103           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
 104           .length       = SZ_1M,
 105           .type         = MT_DEVICE,
 106   },
 107 };
 108
 109 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 110 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 111 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 112
 113 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 114         [0] = {
 115                 .hwport      = 0,
 116                 .flags       = 0,
 117                 .ucon        = UCON,
 118                 .ulcon       = ULCON,
 119                 .ufcon       = UFCON,
 120         },
 121         [1] = {
 122                 .hwport      = 1,
 123                 .flags       = 0,
 124                 .ucon        = UCON,
 125                 .ulcon       = ULCON,
 126                 .ufcon       = UFCON,
 127         },
 128         /* port 2 is not actually used */
 129         [2] = {
 130                 .hwport      = 2,
 131                 .flags       = 0,
 132                 .ucon        = UCON,
 133                 .ulcon       = ULCON,
 134                 .ufcon       = UFCON,
 135         }
 136 };
 137
 138 /* definitions for the vr1000 extra 16550 serial ports */
 139
 140 #define VR1000_BAUDBASE (3692307)
 141
 142 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 143
 144 static struct plat_serial8250_port serial_platform_data[] = {
 145         [0] = {
 146                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 147                 .irq            = IRQ_VR1000_SERIAL + 0,
 148                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 149                 .iotype         = UPIO_MEM,
 150                 .regshift       = 0,
 151                 .uartclk        = VR1000_BAUDBASE,
 152         },
 153         [1] = {
 154                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 155                 .irq            = IRQ_VR1000_SERIAL + 1,
 156                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 157                 .iotype         = UPIO_MEM,
 158                 .regshift       = 0,
 159                 .uartclk        = VR1000_BAUDBASE,
 160         },
 161         [2] = {
 162                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 163                 .irq            = IRQ_VR1000_SERIAL + 2,
 164                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 165                 .iotype         = UPIO_MEM,
 166                 .regshift       = 0,
 167                 .uartclk        = VR1000_BAUDBASE,
 168         },
 169         [3] = {
 170                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 171                 .irq            = IRQ_VR1000_SERIAL + 3,
 172                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 173                 .iotype         = UPIO_MEM,
 174                 .regshift       = 0,
 175                 .uartclk        = VR1000_BAUDBASE,
 176         },
 177         { },
 178 };
 179
 180 static struct platform_device serial_device = {
 181         .name                   = "serial8250",
 182         .id                     = PLAT8250_DEV_PLATFORM,
 183         .dev                    = {
 184                 .platform_data  = serial_platform_data,
 185         },
 186 };
 187
 188 /* DM9000 ethernet devices */
 189
 190 static struct resource vr1000_dm9k0_resource[] = {
 191         [0] = {
 192                 .start = S3C2410_CS5 + VR1000_PA_DM9000,
 193                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 3,
 194                 .flags = IORESOURCE_MEM
 195         },
 196         [1] = {
 197                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x40,
 198                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x7f,
 199                 .flags = IORESOURCE_MEM
 200         },
 201         [2] = {
 202                 .start = IRQ_VR1000_DM9000A,
 203                 .end   = IRQ_VR1000_DM9000A,
 204                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 205         }
 206
 207 };
 208
 209 static struct resource vr1000_dm9k1_resource[] = {
 210         [0] = {
 211                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x80,
 212                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x83,
 213                 .flags = IORESOURCE_MEM
 214         },
 215         [1] = {
 216                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0,
 217                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0xFF,
 218                 .flags = IORESOURCE_MEM
 219         },
 220         [2] = {
 221                 .start = IRQ_VR1000_DM9000N,
 222                 .end   = IRQ_VR1000_DM9000N,
 223                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 224         }
 225 };
 226
 227 /* for the moment we limit ourselves to 16bit IO until some
 228  * better IO routines can be written and tested
 229 */
 230
 231 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 232         .flags          = DM9000_PLATF_16BITONLY,
 233 };
 234
 235 static struct platform_device vr1000_dm9k0 = {
 236         .name           = "dm9000",
 237         .id             = 0,
 238         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 239         .resource       = vr1000_dm9k0_resource,
 240         .dev            = {
 241                 .platform_data = &vr1000_dm9k_platdata,
 242         }
 243 };
 244
 245 static struct platform_device vr1000_dm9k1 = {
 246         .name           = "dm9000",
 247         .id             = 1,
 248         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 249         .resource       = vr1000_dm9k1_resource,
 250         .dev            = {
 251                 .platform_data = &vr1000_dm9k_platdata,
 252         }
 253 };
 254
 255 /* LEDS */
 256
 257 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 258         .name           = "led1",
 259         .gpio           = S3C2410_GPB(0),
 260         .def_trigger    = "",
 261 };
 262
 263 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 264         .name           = "led2",
 265         .gpio           = S3C2410_GPB(1),
 266         .def_trigger    = "",
 267 };
 268
 269 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 270         .name           = "led3",
 271         .gpio           = S3C2410_GPB(2),
 272         .def_trigger    = "",
 273 };
 274
 275 static struct platform_device vr1000_led1 = {
 276         .name           = "s3c24xx_led",
 277         .id             = 1,
 278         .dev            = {
 279                 .platform_data  = &vr1000_led1_pdata,
 280         },
 281 };
 282
 283 static struct platform_device vr1000_led2 = {
 284         .name           = "s3c24xx_led",
 285         .id             = 2,
 286         .dev            = {
 287                 .platform_data  = &vr1000_led2_pdata,
 288         },
 289 };
 290
 291 static struct platform_device vr1000_led3 = {
 292         .name           = "s3c24xx_led",
 293         .id             = 3,
 294         .dev            = {
 295                 .platform_data  = &vr1000_led3_pdata,
 296         },
 297 };
 298
 299 /* I2C devices. */
 300
 301 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
 302         {
 303                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 304         }, {
 305                 I2C_BOARD_INFO("tmp101", 0x48),
 306         }, {
 307                 I2C_BOARD_INFO("m41st87", 0x68),
 308         },
 309 };
 310
 311 /* devices for this board */
 312
 313 static struct platform_device *vr1000_devices[] __initdata = {
 314         &s3c_device_ohci,
 315         &s3c_device_lcd,
 316         &s3c_device_wdt,
 317         &s3c_device_i2c0,
 318         &s3c_device_adc,
 319         &serial_device,
 320         &vr1000_dm9k0,
 321         &vr1000_dm9k1,
 322         &vr1000_led1,
 323         &vr1000_led2,
 324         &vr1000_led3,
 325 };
 326
 327 static struct clk *vr1000_clocks[] __initdata = {
 328         &s3c24xx_dclk0,
 329         &s3c24xx_dclk1,
 330         &s3c24xx_clkout0,
 331         &s3c24xx_clkout1,
 332         &s3c24xx_uclk,
 333 };
 334
 335 static void vr1000_power_off(void)
 336 {
 337         gpio_direction_output(S3C2410_GPB(9), 1);
 338 }
 339
 340 static void __init vr1000_map_io(void)
 341 {
 342         /* initialise clock sources */
 343
 344         s3c24xx_dclk0.parent = &clk_upll;
 345         s3c24xx_dclk0.rate   = 12*1000*1000;
 346
 347         s3c24xx_dclk1.parent = NULL;
 348         s3c24xx_dclk1.rate   = 3692307;
 349
 350         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
 351         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
 352
 353         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
 354
 355         s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks));
 356
 357         pm_power_off = vr1000_power_off;
 358
 359         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 360         s3c24xx_init_clocks(0);
 361         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 362 }
 363
 364 static void __init vr1000_init(void)
 365 {
 366         s3c_i2c0_set_platdata(NULL);
 367         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 368
 369         i2c_register_board_info(0, vr1000_i2c_devs,
 370                                 ARRAY_SIZE(vr1000_i2c_devs));
 371
 372         nor_simtec_init();
 373         simtec_audio_add(NULL, true, NULL);
 374
 375         WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
 376 }
 377
 378 MACHINE_START(VR1000, "Thorcom-VR1000")
 379         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 380         .atag_offset    = 0x100,
 381         .map_io         = vr1000_map_io,
 382         .init_machine   = vr1000_init,
 383         .init_irq       = s3c24xx_init_irq,
 384         .timer          = &s3c24xx_timer,
 385         .restart        = s3c2410_restart,
 386 MACHINE_END