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 /* uart clock source(s) */
 114
 115 static struct s3c24xx_uart_clksrc vr1000_serial_clocks[] = {
 116         [0] = {
 117                 .name           = "uclk",
 118                 .divisor        = 1,
 119                 .min_baud       = 0,
 120                 .max_baud       = 0,
 121         },
 122         [1] = {
 123                 .name           = "pclk",
 124                 .divisor        = 1,
 125                 .min_baud       = 0,
 126                 .max_baud       = 0.
 127         }
 128 };
 129
 130 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 131         [0] = {
 132                 .hwport      = 0,
 133                 .flags       = 0,
 134                 .ucon        = UCON,
 135                 .ulcon       = ULCON,
 136                 .ufcon       = UFCON,
 137                 .clocks      = vr1000_serial_clocks,
 138                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 139         },
 140         [1] = {
 141                 .hwport      = 1,
 142                 .flags       = 0,
 143                 .ucon        = UCON,
 144                 .ulcon       = ULCON,
 145                 .ufcon       = UFCON,
 146                 .clocks      = vr1000_serial_clocks,
 147                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 148         },
 149         /* port 2 is not actually used */
 150         [2] = {
 151                 .hwport      = 2,
 152                 .flags       = 0,
 153                 .ucon        = UCON,
 154                 .ulcon       = ULCON,
 155                 .ufcon       = UFCON,
 156                 .clocks      = vr1000_serial_clocks,
 157                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 158
 159         }
 160 };
 161
 162 /* definitions for the vr1000 extra 16550 serial ports */
 163
 164 #define VR1000_BAUDBASE (3692307)
 165
 166 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 167
 168 static struct plat_serial8250_port serial_platform_data[] = {
 169         [0] = {
 170                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 171                 .irq            = IRQ_VR1000_SERIAL + 0,
 172                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 173                 .iotype         = UPIO_MEM,
 174                 .regshift       = 0,
 175                 .uartclk        = VR1000_BAUDBASE,
 176         },
 177         [1] = {
 178                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 179                 .irq            = IRQ_VR1000_SERIAL + 1,
 180                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 181                 .iotype         = UPIO_MEM,
 182                 .regshift       = 0,
 183                 .uartclk        = VR1000_BAUDBASE,
 184         },
 185         [2] = {
 186                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 187                 .irq            = IRQ_VR1000_SERIAL + 2,
 188                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 189                 .iotype         = UPIO_MEM,
 190                 .regshift       = 0,
 191                 .uartclk        = VR1000_BAUDBASE,
 192         },
 193         [3] = {
 194                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 195                 .irq            = IRQ_VR1000_SERIAL + 3,
 196                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 197                 .iotype         = UPIO_MEM,
 198                 .regshift       = 0,
 199                 .uartclk        = VR1000_BAUDBASE,
 200         },
 201         { },
 202 };
 203
 204 static struct platform_device serial_device = {
 205         .name                   = "serial8250",
 206         .id                     = PLAT8250_DEV_PLATFORM,
 207         .dev                    = {
 208                 .platform_data  = serial_platform_data,
 209         },
 210 };
 211
 212 /* DM9000 ethernet devices */
 213
 214 static struct resource vr1000_dm9k0_resource[] = {
 215         [0] = {
 216                 .start = S3C2410_CS5 + VR1000_PA_DM9000,
 217                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 3,
 218                 .flags = IORESOURCE_MEM
 219         },
 220         [1] = {
 221                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x40,
 222                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x7f,
 223                 .flags = IORESOURCE_MEM
 224         },
 225         [2] = {
 226                 .start = IRQ_VR1000_DM9000A,
 227                 .end   = IRQ_VR1000_DM9000A,
 228                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 229         }
 230
 231 };
 232
 233 static struct resource vr1000_dm9k1_resource[] = {
 234         [0] = {
 235                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x80,
 236                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x83,
 237                 .flags = IORESOURCE_MEM
 238         },
 239         [1] = {
 240                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0,
 241                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0xFF,
 242                 .flags = IORESOURCE_MEM
 243         },
 244         [2] = {
 245                 .start = IRQ_VR1000_DM9000N,
 246                 .end   = IRQ_VR1000_DM9000N,
 247                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 248         }
 249 };
 250
 251 /* for the moment we limit ourselves to 16bit IO until some
 252  * better IO routines can be written and tested
 253 */
 254
 255 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 256         .flags          = DM9000_PLATF_16BITONLY,
 257 };
 258
 259 static struct platform_device vr1000_dm9k0 = {
 260         .name           = "dm9000",
 261         .id             = 0,
 262         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 263         .resource       = vr1000_dm9k0_resource,
 264         .dev            = {
 265                 .platform_data = &vr1000_dm9k_platdata,
 266         }
 267 };
 268
 269 static struct platform_device vr1000_dm9k1 = {
 270         .name           = "dm9000",
 271         .id             = 1,
 272         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 273         .resource       = vr1000_dm9k1_resource,
 274         .dev            = {
 275                 .platform_data = &vr1000_dm9k_platdata,
 276         }
 277 };
 278
 279 /* LEDS */
 280
 281 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 282         .name           = "led1",
 283         .gpio           = S3C2410_GPB(0),
 284         .def_trigger    = "",
 285 };
 286
 287 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 288         .name           = "led2",
 289         .gpio           = S3C2410_GPB(1),
 290         .def_trigger    = "",
 291 };
 292
 293 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 294         .name           = "led3",
 295         .gpio           = S3C2410_GPB(2),
 296         .def_trigger    = "",
 297 };
 298
 299 static struct platform_device vr1000_led1 = {
 300         .name           = "s3c24xx_led",
 301         .id             = 1,
 302         .dev            = {
 303                 .platform_data  = &vr1000_led1_pdata,
 304         },
 305 };
 306
 307 static struct platform_device vr1000_led2 = {
 308         .name           = "s3c24xx_led",
 309         .id             = 2,
 310         .dev            = {
 311                 .platform_data  = &vr1000_led2_pdata,
 312         },
 313 };
 314
 315 static struct platform_device vr1000_led3 = {
 316         .name           = "s3c24xx_led",
 317         .id             = 3,
 318         .dev            = {
 319                 .platform_data  = &vr1000_led3_pdata,
 320         },
 321 };
 322
 323 /* I2C devices. */
 324
 325 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
 326         {
 327                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 328         }, {
 329                 I2C_BOARD_INFO("tmp101", 0x48),
 330         }, {
 331                 I2C_BOARD_INFO("m41st87", 0x68),
 332         },
 333 };
 334
 335 /* devices for this board */
 336
 337 static struct platform_device *vr1000_devices[] __initdata = {
 338         &s3c_device_ohci,
 339         &s3c_device_lcd,
 340         &s3c_device_wdt,
 341         &s3c_device_i2c0,
 342         &s3c_device_adc,
 343         &serial_device,
 344         &vr1000_dm9k0,
 345         &vr1000_dm9k1,
 346         &vr1000_led1,
 347         &vr1000_led2,
 348         &vr1000_led3,
 349 };
 350
 351 static struct clk *vr1000_clocks[] __initdata = {
 352         &s3c24xx_dclk0,
 353         &s3c24xx_dclk1,
 354         &s3c24xx_clkout0,
 355         &s3c24xx_clkout1,
 356         &s3c24xx_uclk,
 357 };
 358
 359 static void vr1000_power_off(void)
 360 {
 361         gpio_direction_output(S3C2410_GPB(9), 1);
 362 }
 363
 364 static void __init vr1000_map_io(void)
 365 {
 366         /* initialise clock sources */
 367
 368         s3c24xx_dclk0.parent = &clk_upll;
 369         s3c24xx_dclk0.rate   = 12*1000*1000;
 370
 371         s3c24xx_dclk1.parent = NULL;
 372         s3c24xx_dclk1.rate   = 3692307;
 373
 374         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
 375         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
 376
 377         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
 378
 379         s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks));
 380
 381         pm_power_off = vr1000_power_off;
 382
 383         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 384         s3c24xx_init_clocks(0);
 385         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 386 }
 387
 388 static void __init vr1000_init(void)
 389 {
 390         s3c_i2c0_set_platdata(NULL);
 391         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 392
 393         i2c_register_board_info(0, vr1000_i2c_devs,
 394                                 ARRAY_SIZE(vr1000_i2c_devs));
 395
 396         nor_simtec_init();
 397         simtec_audio_add(NULL, true, NULL);
 398
 399         WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
 400 }
 401
 402 MACHINE_START(VR1000, "Thorcom-VR1000")
 403         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 404         .atag_offset    = 0x100,
 405         .map_io         = vr1000_map_io,
 406         .init_machine   = vr1000_init,
 407         .init_irq       = s3c24xx_init_irq,
 408         .timer          = &s3c24xx_timer,
 409         .restart        = s3c2410_restart,
 410 MACHINE_END