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

   1 /* linux/arch/arm/mach-s3c2410/mach-vr1000.c
   2  *
   3  * Copyright (c) 2003-2005,2008 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/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/io.h>
  29
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32 #include <asm/mach/irq.h>
  33
  34 #include <mach/bast-map.h>
  35 #include <mach/vr1000-map.h>
  36 #include <mach/vr1000-irq.h>
  37 #include <mach/vr1000-cpld.h>
  38
  39 #include <mach/hardware.h>
  40 #include <asm/irq.h>
  41 #include <asm/mach-types.h>
  42
  43 #include <plat/regs-serial.h>
  44 #include <mach/regs-gpio.h>
  45 #include <mach/leds-gpio.h>
  46
  47 #include <plat/clock.h>
  48 #include <plat/devs.h>
  49 #include <plat/cpu.h>
  50
  51 #include "usb-simtec.h"
  52 #include "nor-simtec.h"
  53
  54 /* macros for virtual address mods for the io space entries */
  55 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
  56 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
  57 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
  58 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
  59
  60 /* macros to modify the physical addresses for io space */
  61
  62 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
  63 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
  64 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
  65 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
  66
  67 static struct map_desc vr1000_iodesc[] __initdata = {
  68   /* ISA IO areas */
  69   {
  70           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
  71           .pfn          = PA_CS2(BAST_PA_ISAIO),
  72           .length       = SZ_16M,
  73           .type         = MT_DEVICE,
  74   }, {
  75           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
  76           .pfn          = PA_CS3(BAST_PA_ISAIO),
  77           .length       = SZ_16M,
  78           .type         = MT_DEVICE,
  79   },
  80
  81   /*  CPLD control registers, and external interrupt controls */
  82   {
  83           .virtual      = (u32)VR1000_VA_CTRL1,
  84           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
  85           .length       = SZ_1M,
  86           .type         = MT_DEVICE,
  87   }, {
  88           .virtual      = (u32)VR1000_VA_CTRL2,
  89           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
  90           .length       = SZ_1M,
  91           .type         = MT_DEVICE,
  92   }, {
  93           .virtual      = (u32)VR1000_VA_CTRL3,
  94           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
  95           .length       = SZ_1M,
  96           .type         = MT_DEVICE,
  97   }, {
  98           .virtual      = (u32)VR1000_VA_CTRL4,
  99           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
 100           .length       = SZ_1M,
 101           .type         = MT_DEVICE,
 102   },
 103 };
 104
 105 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 106 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 107 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 108
 109 /* uart clock source(s) */
 110
 111 static struct s3c24xx_uart_clksrc vr1000_serial_clocks[] = {
 112         [0] = {
 113                 .name           = "uclk",
 114                 .divisor        = 1,
 115                 .min_baud       = 0,
 116                 .max_baud       = 0,
 117         },
 118         [1] = {
 119                 .name           = "pclk",
 120                 .divisor        = 1,
 121                 .min_baud       = 0,
 122                 .max_baud       = 0.
 123         }
 124 };
 125
 126 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 127         [0] = {
 128                 .hwport      = 0,
 129                 .flags       = 0,
 130                 .ucon        = UCON,
 131                 .ulcon       = ULCON,
 132                 .ufcon       = UFCON,
 133                 .clocks      = vr1000_serial_clocks,
 134                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 135         },
 136         [1] = {
 137                 .hwport      = 1,
 138                 .flags       = 0,
 139                 .ucon        = UCON,
 140                 .ulcon       = ULCON,
 141                 .ufcon       = UFCON,
 142                 .clocks      = vr1000_serial_clocks,
 143                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 144         },
 145         /* port 2 is not actually used */
 146         [2] = {
 147                 .hwport      = 2,
 148                 .flags       = 0,
 149                 .ucon        = UCON,
 150                 .ulcon       = ULCON,
 151                 .ufcon       = UFCON,
 152                 .clocks      = vr1000_serial_clocks,
 153                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 154
 155         }
 156 };
 157
 158 /* definitions for the vr1000 extra 16550 serial ports */
 159
 160 #define VR1000_BAUDBASE (3692307)
 161
 162 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 163
 164 static struct plat_serial8250_port serial_platform_data[] = {
 165         [0] = {
 166                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 167                 .irq            = IRQ_VR1000_SERIAL + 0,
 168                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 169                 .iotype         = UPIO_MEM,
 170                 .regshift       = 0,
 171                 .uartclk        = VR1000_BAUDBASE,
 172         },
 173         [1] = {
 174                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 175                 .irq            = IRQ_VR1000_SERIAL + 1,
 176                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 177                 .iotype         = UPIO_MEM,
 178                 .regshift       = 0,
 179                 .uartclk        = VR1000_BAUDBASE,
 180         },
 181         [2] = {
 182                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 183                 .irq            = IRQ_VR1000_SERIAL + 2,
 184                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 185                 .iotype         = UPIO_MEM,
 186                 .regshift       = 0,
 187                 .uartclk        = VR1000_BAUDBASE,
 188         },
 189         [3] = {
 190                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 191                 .irq            = IRQ_VR1000_SERIAL + 3,
 192                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 193                 .iotype         = UPIO_MEM,
 194                 .regshift       = 0,
 195                 .uartclk        = VR1000_BAUDBASE,
 196         },
 197         { },
 198 };
 199
 200 static struct platform_device serial_device = {
 201         .name                   = "serial8250",
 202         .id                     = PLAT8250_DEV_PLATFORM,
 203         .dev                    = {
 204                 .platform_data  = serial_platform_data,
 205         },
 206 };
 207
 208 /* DM9000 ethernet devices */
 209
 210 static struct resource vr1000_dm9k0_resource[] = {
 211         [0] = {
 212                 .start = S3C2410_CS5 + VR1000_PA_DM9000,
 213                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 3,
 214                 .flags = IORESOURCE_MEM
 215         },
 216         [1] = {
 217                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x40,
 218                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x7f,
 219                 .flags = IORESOURCE_MEM
 220         },
 221         [2] = {
 222                 .start = IRQ_VR1000_DM9000A,
 223                 .end   = IRQ_VR1000_DM9000A,
 224                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 225         }
 226
 227 };
 228
 229 static struct resource vr1000_dm9k1_resource[] = {
 230         [0] = {
 231                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x80,
 232                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x83,
 233                 .flags = IORESOURCE_MEM
 234         },
 235         [1] = {
 236                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0,
 237                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0xFF,
 238                 .flags = IORESOURCE_MEM
 239         },
 240         [2] = {
 241                 .start = IRQ_VR1000_DM9000N,
 242                 .end   = IRQ_VR1000_DM9000N,
 243                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 244         }
 245 };
 246
 247 /* for the moment we limit ourselves to 16bit IO until some
 248  * better IO routines can be written and tested
 249 */
 250
 251 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 252         .flags          = DM9000_PLATF_16BITONLY,
 253 };
 254
 255 static struct platform_device vr1000_dm9k0 = {
 256         .name           = "dm9000",
 257         .id             = 0,
 258         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 259         .resource       = vr1000_dm9k0_resource,
 260         .dev            = {
 261                 .platform_data = &vr1000_dm9k_platdata,
 262         }
 263 };
 264
 265 static struct platform_device vr1000_dm9k1 = {
 266         .name           = "dm9000",
 267         .id             = 1,
 268         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 269         .resource       = vr1000_dm9k1_resource,
 270         .dev            = {
 271                 .platform_data = &vr1000_dm9k_platdata,
 272         }
 273 };
 274
 275 /* LEDS */
 276
 277 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 278         .name           = "led1",
 279         .gpio           = S3C2410_GPB0,
 280         .def_trigger    = "",
 281 };
 282
 283 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 284         .name           = "led2",
 285         .gpio           = S3C2410_GPB1,
 286         .def_trigger    = "",
 287 };
 288
 289 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 290         .name           = "led3",
 291         .gpio           = S3C2410_GPB2,
 292         .def_trigger    = "",
 293 };
 294
 295 static struct platform_device vr1000_led1 = {
 296         .name           = "s3c24xx_led",
 297         .id             = 1,
 298         .dev            = {
 299                 .platform_data  = &vr1000_led1_pdata,
 300         },
 301 };
 302
 303 static struct platform_device vr1000_led2 = {
 304         .name           = "s3c24xx_led",
 305         .id             = 2,
 306         .dev            = {
 307                 .platform_data  = &vr1000_led2_pdata,
 308         },
 309 };
 310
 311 static struct platform_device vr1000_led3 = {
 312         .name           = "s3c24xx_led",
 313         .id             = 3,
 314         .dev            = {
 315                 .platform_data  = &vr1000_led3_pdata,
 316         },
 317 };
 318
 319 /* I2C devices. */
 320
 321 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
 322         {
 323                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 324         }, {
 325                 I2C_BOARD_INFO("tmp101", 0x48),
 326         }, {
 327                 I2C_BOARD_INFO("m41st87", 0x68),
 328         },
 329 };
 330
 331 /* devices for this board */
 332
 333 static struct platform_device *vr1000_devices[] __initdata = {
 334         &s3c_device_usb,
 335         &s3c_device_lcd,
 336         &s3c_device_wdt,
 337         &s3c_device_i2c,
 338         &s3c_device_adc,
 339         &serial_device,
 340         &vr1000_dm9k0,
 341         &vr1000_dm9k1,
 342         &vr1000_led1,
 343         &vr1000_led2,
 344         &vr1000_led3,
 345 };
 346
 347 static struct clk *vr1000_clocks[] __initdata = {
 348         &s3c24xx_dclk0,
 349         &s3c24xx_dclk1,
 350         &s3c24xx_clkout0,
 351         &s3c24xx_clkout1,
 352         &s3c24xx_uclk,
 353 };
 354
 355 static void vr1000_power_off(void)
 356 {
 357         s3c2410_gpio_cfgpin(S3C2410_GPB9, S3C2410_GPB9_OUTP);
 358         s3c2410_gpio_setpin(S3C2410_GPB9, 1);
 359 }
 360
 361 static void __init vr1000_map_io(void)
 362 {
 363         /* initialise clock sources */
 364
 365         s3c24xx_dclk0.parent = &clk_upll;
 366         s3c24xx_dclk0.rate   = 12*1000*1000;
 367
 368         s3c24xx_dclk1.parent = NULL;
 369         s3c24xx_dclk1.rate   = 3692307;
 370
 371         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
 372         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
 373
 374         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
 375
 376         s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks));
 377
 378         pm_power_off = vr1000_power_off;
 379
 380         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 381         s3c24xx_init_clocks(0);
 382         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 383 }
 384
 385 static void __init vr1000_init(void)
 386 {
 387         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 388
 389         i2c_register_board_info(0, vr1000_i2c_devs,
 390                                 ARRAY_SIZE(vr1000_i2c_devs));
 391
 392         nor_simtec_init();
 393 }
 394
 395 MACHINE_START(VR1000, "Thorcom-VR1000")
 396         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 397         .phys_io        = S3C2410_PA_UART,
 398         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 399         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 400         .map_io         = vr1000_map_io,
 401         .init_machine   = vr1000_init,
 402         .init_irq       = s3c24xx_init_irq,
 403         .timer          = &s3c24xx_timer,
 404 MACHINE_END