err.no Git - linux-2.6/blob - arch/arm/mach-s3c2410/mach-vr1000.c

   1 /* linux/arch/arm/mach-s3c2410/mach-vr1000.c
   2  *
   3  * Copyright (c) 2003-2005 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/dm9000.h>
  22
  23 #include <linux/serial.h>
  24 #include <linux/tty.h>
  25 #include <linux/serial_8250.h>
  26 #include <linux/serial_reg.h>
  27
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/map.h>
  30 #include <asm/mach/irq.h>
  31
  32 #include <asm/arch/bast-map.h>
  33 #include <asm/arch/vr1000-map.h>
  34 #include <asm/arch/vr1000-irq.h>
  35 #include <asm/arch/vr1000-cpld.h>
  36
  37 #include <asm/hardware.h>
  38 #include <asm/io.h>
  39 #include <asm/irq.h>
  40 #include <asm/mach-types.h>
  41
  42 #include <asm/plat-s3c/regs-serial.h>
  43 #include <asm/arch/regs-gpio.h>
  44 #include <asm/arch/leds-gpio.h>
  45
  46 #include <asm/plat-s3c24xx/clock.h>
  47 #include <asm/plat-s3c24xx/devs.h>
  48 #include <asm/plat-s3c24xx/cpu.h>
  49 #include "usb-simtec.h"
  50
  51 /* macros for virtual address mods for the io space entries */
  52 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
  53 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
  54 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
  55 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
  56
  57 /* macros to modify the physical addresses for io space */
  58
  59 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
  60 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
  61 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
  62 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
  63
  64 static struct map_desc vr1000_iodesc[] __initdata = {
  65   /* ISA IO areas */
  66   {
  67           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
  68           .pfn          = PA_CS2(BAST_PA_ISAIO),
  69           .length       = SZ_16M,
  70           .type         = MT_DEVICE,
  71   }, {
  72           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
  73           .pfn          = PA_CS3(BAST_PA_ISAIO),
  74           .length       = SZ_16M,
  75           .type         = MT_DEVICE,
  76   },
  77
  78   /*  CPLD control registers, and external interrupt controls */
  79   {
  80           .virtual      = (u32)VR1000_VA_CTRL1,
  81           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
  82           .length       = SZ_1M,
  83           .type         = MT_DEVICE,
  84   }, {
  85           .virtual      = (u32)VR1000_VA_CTRL2,
  86           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
  87           .length       = SZ_1M,
  88           .type         = MT_DEVICE,
  89   }, {
  90           .virtual      = (u32)VR1000_VA_CTRL3,
  91           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
  92           .length       = SZ_1M,
  93           .type         = MT_DEVICE,
  94   }, {
  95           .virtual      = (u32)VR1000_VA_CTRL4,
  96           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
  97           .length       = SZ_1M,
  98           .type         = MT_DEVICE,
  99   },
 100 };
 101
 102 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 103 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 104 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 105
 106 /* uart clock source(s) */
 107
 108 static struct s3c24xx_uart_clksrc vr1000_serial_clocks[] = {
 109         [0] = {
 110                 .name           = "uclk",
 111                 .divisor        = 1,
 112                 .min_baud       = 0,
 113                 .max_baud       = 0,
 114         },
 115         [1] = {
 116                 .name           = "pclk",
 117                 .divisor        = 1,
 118                 .min_baud       = 0,
 119                 .max_baud       = 0.
 120         }
 121 };
 122
 123 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 124         [0] = {
 125                 .hwport      = 0,
 126                 .flags       = 0,
 127                 .ucon        = UCON,
 128                 .ulcon       = ULCON,
 129                 .ufcon       = UFCON,
 130                 .clocks      = vr1000_serial_clocks,
 131                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 132         },
 133         [1] = {
 134                 .hwport      = 1,
 135                 .flags       = 0,
 136                 .ucon        = UCON,
 137                 .ulcon       = ULCON,
 138                 .ufcon       = UFCON,
 139                 .clocks      = vr1000_serial_clocks,
 140                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 141         },
 142         /* port 2 is not actually used */
 143         [2] = {
 144                 .hwport      = 2,
 145                 .flags       = 0,
 146                 .ucon        = UCON,
 147                 .ulcon       = ULCON,
 148                 .ufcon       = UFCON,
 149                 .clocks      = vr1000_serial_clocks,
 150                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 151
 152         }
 153 };
 154
 155 /* definitions for the vr1000 extra 16550 serial ports */
 156
 157 #define VR1000_BAUDBASE (3692307)
 158
 159 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 160
 161 static struct plat_serial8250_port serial_platform_data[] = {
 162         [0] = {
 163                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 164                 .irq            = IRQ_VR1000_SERIAL + 0,
 165                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 166                 .iotype         = UPIO_MEM,
 167                 .regshift       = 0,
 168                 .uartclk        = VR1000_BAUDBASE,
 169         },
 170         [1] = {
 171                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 172                 .irq            = IRQ_VR1000_SERIAL + 1,
 173                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 174                 .iotype         = UPIO_MEM,
 175                 .regshift       = 0,
 176                 .uartclk        = VR1000_BAUDBASE,
 177         },
 178         [2] = {
 179                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 180                 .irq            = IRQ_VR1000_SERIAL + 2,
 181                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 182                 .iotype         = UPIO_MEM,
 183                 .regshift       = 0,
 184                 .uartclk        = VR1000_BAUDBASE,
 185         },
 186         [3] = {
 187                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 188                 .irq            = IRQ_VR1000_SERIAL + 3,
 189                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 190                 .iotype         = UPIO_MEM,
 191                 .regshift       = 0,
 192                 .uartclk        = VR1000_BAUDBASE,
 193         },
 194         { },
 195 };
 196
 197 static struct platform_device serial_device = {
 198         .name                   = "serial8250",
 199         .id                     = PLAT8250_DEV_PLATFORM,
 200         .dev                    = {
 201                 .platform_data  = serial_platform_data,
 202         },
 203 };
 204
 205 /* MTD NOR Flash */
 206
 207 static struct resource vr1000_nor_resource[] = {
 208         [0] = {
 209                 .start  = S3C2410_CS1 + 0x4000000,
 210                 .end    = S3C2410_CS1 + 0x4000000 + SZ_16M - 1,
 211                 .flags  = IORESOURCE_MEM,
 212         }
 213 };
 214
 215 static struct platform_device vr1000_nor = {
 216         .name           = "bast-nor",
 217         .id             = -1,
 218         .num_resources  = ARRAY_SIZE(vr1000_nor_resource),
 219         .resource       = vr1000_nor_resource,
 220 };
 221
 222 /* DM9000 ethernet devices */
 223
 224 static struct resource vr1000_dm9k0_resource[] = {
 225         [0] = {
 226                 .start = S3C2410_CS5 + VR1000_PA_DM9000,
 227                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 3,
 228                 .flags = IORESOURCE_MEM
 229         },
 230         [1] = {
 231                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x40,
 232                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x7f,
 233                 .flags = IORESOURCE_MEM
 234         },
 235         [2] = {
 236                 .start = IRQ_VR1000_DM9000A,
 237                 .end   = IRQ_VR1000_DM9000A,
 238                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 239         }
 240
 241 };
 242
 243 static struct resource vr1000_dm9k1_resource[] = {
 244         [0] = {
 245                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x80,
 246                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x83,
 247                 .flags = IORESOURCE_MEM
 248         },
 249         [1] = {
 250                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0,
 251                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0xFF,
 252                 .flags = IORESOURCE_MEM
 253         },
 254         [2] = {
 255                 .start = IRQ_VR1000_DM9000N,
 256                 .end   = IRQ_VR1000_DM9000N,
 257                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 258         }
 259 };
 260
 261 /* for the moment we limit ourselves to 16bit IO until some
 262  * better IO routines can be written and tested
 263 */
 264
 265 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 266         .flags          = DM9000_PLATF_16BITONLY,
 267 };
 268
 269 static struct platform_device vr1000_dm9k0 = {
 270         .name           = "dm9000",
 271         .id             = 0,
 272         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 273         .resource       = vr1000_dm9k0_resource,
 274         .dev            = {
 275                 .platform_data = &vr1000_dm9k_platdata,
 276         }
 277 };
 278
 279 static struct platform_device vr1000_dm9k1 = {
 280         .name           = "dm9000",
 281         .id             = 1,
 282         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 283         .resource       = vr1000_dm9k1_resource,
 284         .dev            = {
 285                 .platform_data = &vr1000_dm9k_platdata,
 286         }
 287 };
 288
 289 /* LEDS */
 290
 291 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 292         .name           = "led1",
 293         .gpio           = S3C2410_GPB0,
 294         .def_trigger    = "",
 295 };
 296
 297 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 298         .name           = "led2",
 299         .gpio           = S3C2410_GPB1,
 300         .def_trigger    = "",
 301 };
 302
 303 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 304         .name           = "led3",
 305         .gpio           = S3C2410_GPB2,
 306         .def_trigger    = "",
 307 };
 308
 309 static struct platform_device vr1000_led1 = {
 310         .name           = "s3c24xx_led",
 311         .id             = 1,
 312         .dev            = {
 313                 .platform_data  = &vr1000_led1_pdata,
 314         },
 315 };
 316
 317 static struct platform_device vr1000_led2 = {
 318         .name           = "s3c24xx_led",
 319         .id             = 2,
 320         .dev            = {
 321                 .platform_data  = &vr1000_led2_pdata,
 322         },
 323 };
 324
 325 static struct platform_device vr1000_led3 = {
 326         .name           = "s3c24xx_led",
 327         .id             = 3,
 328         .dev            = {
 329                 .platform_data  = &vr1000_led3_pdata,
 330         },
 331 };
 332
 333 /* devices for this board */
 334
 335 static struct platform_device *vr1000_devices[] __initdata = {
 336         &s3c_device_usb,
 337         &s3c_device_lcd,
 338         &s3c_device_wdt,
 339         &s3c_device_i2c,
 340         &s3c_device_adc,
 341         &serial_device,
 342         &vr1000_nor,
 343         &vr1000_dm9k0,
 344         &vr1000_dm9k1,
 345         &vr1000_led1,
 346         &vr1000_led2,
 347         &vr1000_led3,
 348 };
 349
 350 static struct clk *vr1000_clocks[] = {
 351         &s3c24xx_dclk0,
 352         &s3c24xx_dclk1,
 353         &s3c24xx_clkout0,
 354         &s3c24xx_clkout1,
 355         &s3c24xx_uclk,
 356 };
 357
 358 static void vr1000_power_off(void)
 359 {
 360         s3c2410_gpio_cfgpin(S3C2410_GPB9, S3C2410_GPB9_OUTP);
 361         s3c2410_gpio_setpin(S3C2410_GPB9, 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         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 391 }
 392
 393 MACHINE_START(VR1000, "Thorcom-VR1000")
 394         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 395         .phys_io        = S3C2410_PA_UART,
 396         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 397         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 398         .map_io         = vr1000_map_io,
 399         .init_machine   = vr1000_init,
 400         .init_irq       = s3c24xx_init_irq,
 401         .timer          = &s3c24xx_timer,
 402 MACHINE_END