git.oblomov.eu 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   /* peripheral space... one for each of fast/slow/byte/16bit */
 102   /* note, ide is only decoded in word space, even though some registers
 103    * are only 8bit */
 104
 105   /* slow, byte */
 106   { VA_C2(VR1000_VA_IDEPRI),  PA_CS3(VR1000_PA_IDEPRI),   SZ_1M,  MT_DEVICE },
 107   { VA_C2(VR1000_VA_IDESEC),  PA_CS3(VR1000_PA_IDESEC),   SZ_1M,  MT_DEVICE },
 108   { VA_C2(VR1000_VA_IDEPRIAUX), PA_CS3(VR1000_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
 109   { VA_C2(VR1000_VA_IDESECAUX), PA_CS3(VR1000_PA_IDESECAUX), SZ_1M, MT_DEVICE },
 110
 111   /* slow, word */
 112   { VA_C3(VR1000_VA_IDEPRI),  PA_CS3(VR1000_PA_IDEPRI),   SZ_1M,  MT_DEVICE },
 113   { VA_C3(VR1000_VA_IDESEC),  PA_CS3(VR1000_PA_IDESEC),   SZ_1M,  MT_DEVICE },
 114   { VA_C3(VR1000_VA_IDEPRIAUX), PA_CS3(VR1000_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
 115   { VA_C3(VR1000_VA_IDESECAUX), PA_CS3(VR1000_PA_IDESECAUX), SZ_1M, MT_DEVICE },
 116
 117   /* fast, byte */
 118   { VA_C4(VR1000_VA_IDEPRI),  PA_CS5(VR1000_PA_IDEPRI),   SZ_1M,  MT_DEVICE },
 119   { VA_C4(VR1000_VA_IDESEC),  PA_CS5(VR1000_PA_IDESEC),   SZ_1M,  MT_DEVICE },
 120   { VA_C4(VR1000_VA_IDEPRIAUX), PA_CS5(VR1000_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
 121   { VA_C4(VR1000_VA_IDESECAUX), PA_CS5(VR1000_PA_IDESECAUX), SZ_1M, MT_DEVICE },
 122
 123   /* fast, word */
 124   { VA_C5(VR1000_VA_IDEPRI),  PA_CS5(VR1000_PA_IDEPRI),   SZ_1M,  MT_DEVICE },
 125   { VA_C5(VR1000_VA_IDESEC),  PA_CS5(VR1000_PA_IDESEC),   SZ_1M,  MT_DEVICE },
 126   { VA_C5(VR1000_VA_IDEPRIAUX), PA_CS5(VR1000_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
 127   { VA_C5(VR1000_VA_IDESECAUX), PA_CS5(VR1000_PA_IDESECAUX), SZ_1M, MT_DEVICE },
 128 };
 129
 130 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 131 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 132 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 133
 134 /* uart clock source(s) */
 135
 136 static struct s3c24xx_uart_clksrc vr1000_serial_clocks[] = {
 137         [0] = {
 138                 .name           = "uclk",
 139                 .divisor        = 1,
 140                 .min_baud       = 0,
 141                 .max_baud       = 0,
 142         },
 143         [1] = {
 144                 .name           = "pclk",
 145                 .divisor        = 1,
 146                 .min_baud       = 0,
 147                 .max_baud       = 0.
 148         }
 149 };
 150
 151 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 152         [0] = {
 153                 .hwport      = 0,
 154                 .flags       = 0,
 155                 .ucon        = UCON,
 156                 .ulcon       = ULCON,
 157                 .ufcon       = UFCON,
 158                 .clocks      = vr1000_serial_clocks,
 159                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 160         },
 161         [1] = {
 162                 .hwport      = 1,
 163                 .flags       = 0,
 164                 .ucon        = UCON,
 165                 .ulcon       = ULCON,
 166                 .ufcon       = UFCON,
 167                 .clocks      = vr1000_serial_clocks,
 168                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 169         },
 170         /* port 2 is not actually used */
 171         [2] = {
 172                 .hwport      = 2,
 173                 .flags       = 0,
 174                 .ucon        = UCON,
 175                 .ulcon       = ULCON,
 176                 .ufcon       = UFCON,
 177                 .clocks      = vr1000_serial_clocks,
 178                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 179
 180         }
 181 };
 182
 183 /* definitions for the vr1000 extra 16550 serial ports */
 184
 185 #define VR1000_BAUDBASE (3692307)
 186
 187 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 188
 189 static struct plat_serial8250_port serial_platform_data[] = {
 190         [0] = {
 191                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 192                 .irq            = IRQ_VR1000_SERIAL + 0,
 193                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 194                 .iotype         = UPIO_MEM,
 195                 .regshift       = 0,
 196                 .uartclk        = VR1000_BAUDBASE,
 197         },
 198         [1] = {
 199                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 200                 .irq            = IRQ_VR1000_SERIAL + 1,
 201                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 202                 .iotype         = UPIO_MEM,
 203                 .regshift       = 0,
 204                 .uartclk        = VR1000_BAUDBASE,
 205         },
 206         [2] = {
 207                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 208                 .irq            = IRQ_VR1000_SERIAL + 2,
 209                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 210                 .iotype         = UPIO_MEM,
 211                 .regshift       = 0,
 212                 .uartclk        = VR1000_BAUDBASE,
 213         },
 214         [3] = {
 215                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 216                 .irq            = IRQ_VR1000_SERIAL + 3,
 217                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 218                 .iotype         = UPIO_MEM,
 219                 .regshift       = 0,
 220                 .uartclk        = VR1000_BAUDBASE,
 221         },
 222         { },
 223 };
 224
 225 static struct platform_device serial_device = {
 226         .name                   = "serial8250",
 227         .id                     = PLAT8250_DEV_PLATFORM,
 228         .dev                    = {
 229                 .platform_data  = serial_platform_data,
 230         },
 231 };
 232
 233 /* MTD NOR Flash */
 234
 235 static struct resource vr1000_nor_resource[] = {
 236         [0] = {
 237                 .start  = S3C2410_CS1 + 0x4000000,
 238                 .end    = S3C2410_CS1 + 0x4000000 + SZ_16M - 1,
 239                 .flags  = IORESOURCE_MEM,
 240         }
 241 };
 242
 243 static struct platform_device vr1000_nor = {
 244         .name           = "bast-nor",
 245         .id             = -1,
 246         .num_resources  = ARRAY_SIZE(vr1000_nor_resource),
 247         .resource       = vr1000_nor_resource,
 248 };
 249
 250 /* DM9000 ethernet devices */
 251
 252 static struct resource vr1000_dm9k0_resource[] = {
 253         [0] = {
 254                 .start = S3C2410_CS5 + VR1000_PA_DM9000,
 255                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 3,
 256                 .flags = IORESOURCE_MEM
 257         },
 258         [1] = {
 259                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x40,
 260                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x7f,
 261                 .flags = IORESOURCE_MEM
 262         },
 263         [2] = {
 264                 .start = IRQ_VR1000_DM9000A,
 265                 .end   = IRQ_VR1000_DM9000A,
 266                 .flags = IORESOURCE_IRQ
 267         }
 268
 269 };
 270
 271 static struct resource vr1000_dm9k1_resource[] = {
 272         [0] = {
 273                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x80,
 274                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x83,
 275                 .flags = IORESOURCE_MEM
 276         },
 277         [1] = {
 278                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0,
 279                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0xFF,
 280                 .flags = IORESOURCE_MEM
 281         },
 282         [2] = {
 283                 .start = IRQ_VR1000_DM9000N,
 284                 .end   = IRQ_VR1000_DM9000N,
 285                 .flags = IORESOURCE_IRQ
 286         }
 287 };
 288
 289 /* for the moment we limit ourselves to 16bit IO until some
 290  * better IO routines can be written and tested
 291 */
 292
 293 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 294         .flags          = DM9000_PLATF_16BITONLY,
 295 };
 296
 297 static struct platform_device vr1000_dm9k0 = {
 298         .name           = "dm9000",
 299         .id             = 0,
 300         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 301         .resource       = vr1000_dm9k0_resource,
 302         .dev            = {
 303                 .platform_data = &vr1000_dm9k_platdata,
 304         }
 305 };
 306
 307 static struct platform_device vr1000_dm9k1 = {
 308         .name           = "dm9000",
 309         .id             = 1,
 310         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 311         .resource       = vr1000_dm9k1_resource,
 312         .dev            = {
 313                 .platform_data = &vr1000_dm9k_platdata,
 314         }
 315 };
 316
 317 /* LEDS */
 318
 319 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 320         .name           = "led1",
 321         .gpio           = S3C2410_GPB0,
 322         .def_trigger    = "",
 323 };
 324
 325 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 326         .name           = "led2",
 327         .gpio           = S3C2410_GPB1,
 328         .def_trigger    = "",
 329 };
 330
 331 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 332         .name           = "led3",
 333         .gpio           = S3C2410_GPB2,
 334         .def_trigger    = "",
 335 };
 336
 337 static struct platform_device vr1000_led1 = {
 338         .name           = "s3c24xx_led",
 339         .id             = 1,
 340         .dev            = {
 341                 .platform_data  = &vr1000_led1_pdata,
 342         },
 343 };
 344
 345 static struct platform_device vr1000_led2 = {
 346         .name           = "s3c24xx_led",
 347         .id             = 2,
 348         .dev            = {
 349                 .platform_data  = &vr1000_led2_pdata,
 350         },
 351 };
 352
 353 static struct platform_device vr1000_led3 = {
 354         .name           = "s3c24xx_led",
 355         .id             = 3,
 356         .dev            = {
 357                 .platform_data  = &vr1000_led3_pdata,
 358         },
 359 };
 360
 361 /* devices for this board */
 362
 363 static struct platform_device *vr1000_devices[] __initdata = {
 364         &s3c_device_usb,
 365         &s3c_device_lcd,
 366         &s3c_device_wdt,
 367         &s3c_device_i2c,
 368         &s3c_device_adc,
 369         &serial_device,
 370         &vr1000_nor,
 371         &vr1000_dm9k0,
 372         &vr1000_dm9k1,
 373         &vr1000_led1,
 374         &vr1000_led2,
 375         &vr1000_led3,
 376 };
 377
 378 static struct clk *vr1000_clocks[] = {
 379         &s3c24xx_dclk0,
 380         &s3c24xx_dclk1,
 381         &s3c24xx_clkout0,
 382         &s3c24xx_clkout1,
 383         &s3c24xx_uclk,
 384 };
 385
 386 static void vr1000_power_off(void)
 387 {
 388         s3c2410_gpio_cfgpin(S3C2410_GPB9, S3C2410_GPB9_OUTP);
 389         s3c2410_gpio_setpin(S3C2410_GPB9, 1);
 390 }
 391
 392 static void __init vr1000_map_io(void)
 393 {
 394         /* initialise clock sources */
 395
 396         s3c24xx_dclk0.parent = NULL;
 397         s3c24xx_dclk0.rate   = 12*1000*1000;
 398
 399         s3c24xx_dclk1.parent = NULL;
 400         s3c24xx_dclk1.rate   = 3692307;
 401
 402         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
 403         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
 404
 405         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
 406
 407         s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks));
 408
 409         pm_power_off = vr1000_power_off;
 410
 411         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 412         s3c24xx_init_clocks(0);
 413         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 414 }
 415
 416 static void __init vr1000_init(void)
 417 {
 418         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 419 }
 420
 421 MACHINE_START(VR1000, "Thorcom-VR1000")
 422         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 423         .phys_io        = S3C2410_PA_UART,
 424         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 425         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 426         .map_io         = vr1000_map_io,
 427         .init_machine   = vr1000_init,
 428         .init_irq       = s3c24xx_init_irq,
 429         .timer          = &s3c24xx_timer,
 430 MACHINE_END