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
  57 /* macros for virtual address mods for the io space entries */
  58 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
  59 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
  60 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
  61 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
  62
  63 /* macros to modify the physical addresses for io space */
  64
  65 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
  66 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
  67 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
  68 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
  69
  70 static struct map_desc vr1000_iodesc[] __initdata = {
  71   /* ISA IO areas */
  72   {
  73           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
  74           .pfn          = PA_CS2(BAST_PA_ISAIO),
  75           .length       = SZ_16M,
  76           .type         = MT_DEVICE,
  77   }, {
  78           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
  79           .pfn          = PA_CS3(BAST_PA_ISAIO),
  80           .length       = SZ_16M,
  81           .type         = MT_DEVICE,
  82   },
  83
  84   /*  CPLD control registers, and external interrupt controls */
  85   {
  86           .virtual      = (u32)VR1000_VA_CTRL1,
  87           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
  88           .length       = SZ_1M,
  89           .type         = MT_DEVICE,
  90   }, {
  91           .virtual      = (u32)VR1000_VA_CTRL2,
  92           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
  93           .length       = SZ_1M,
  94           .type         = MT_DEVICE,
  95   }, {
  96           .virtual      = (u32)VR1000_VA_CTRL3,
  97           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
  98           .length       = SZ_1M,
  99           .type         = MT_DEVICE,
 100   }, {
 101           .virtual      = (u32)VR1000_VA_CTRL4,
 102           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
 103           .length       = SZ_1M,
 104           .type         = MT_DEVICE,
 105   },
 106 };
 107
 108 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 109 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 110 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 111
 112 /* uart clock source(s) */
 113
 114 static struct s3c24xx_uart_clksrc vr1000_serial_clocks[] = {
 115         [0] = {
 116                 .name           = "uclk",
 117                 .divisor        = 1,
 118                 .min_baud       = 0,
 119                 .max_baud       = 0,
 120         },
 121         [1] = {
 122                 .name           = "pclk",
 123                 .divisor        = 1,
 124                 .min_baud       = 0,
 125                 .max_baud       = 0.
 126         }
 127 };
 128
 129 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 130         [0] = {
 131                 .hwport      = 0,
 132                 .flags       = 0,
 133                 .ucon        = UCON,
 134                 .ulcon       = ULCON,
 135                 .ufcon       = UFCON,
 136                 .clocks      = vr1000_serial_clocks,
 137                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 138         },
 139         [1] = {
 140                 .hwport      = 1,
 141                 .flags       = 0,
 142                 .ucon        = UCON,
 143                 .ulcon       = ULCON,
 144                 .ufcon       = UFCON,
 145                 .clocks      = vr1000_serial_clocks,
 146                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 147         },
 148         /* port 2 is not actually used */
 149         [2] = {
 150                 .hwport      = 2,
 151                 .flags       = 0,
 152                 .ucon        = UCON,
 153                 .ulcon       = ULCON,
 154                 .ufcon       = UFCON,
 155                 .clocks      = vr1000_serial_clocks,
 156                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 157
 158         }
 159 };
 160
 161 /* definitions for the vr1000 extra 16550 serial ports */
 162
 163 #define VR1000_BAUDBASE (3692307)
 164
 165 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 166
 167 static struct plat_serial8250_port serial_platform_data[] = {
 168         [0] = {
 169                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 170                 .irq            = IRQ_VR1000_SERIAL + 0,
 171                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 172                 .iotype         = UPIO_MEM,
 173                 .regshift       = 0,
 174                 .uartclk        = VR1000_BAUDBASE,
 175         },
 176         [1] = {
 177                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 178                 .irq            = IRQ_VR1000_SERIAL + 1,
 179                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 180                 .iotype         = UPIO_MEM,
 181                 .regshift       = 0,
 182                 .uartclk        = VR1000_BAUDBASE,
 183         },
 184         [2] = {
 185                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 186                 .irq            = IRQ_VR1000_SERIAL + 2,
 187                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 188                 .iotype         = UPIO_MEM,
 189                 .regshift       = 0,
 190                 .uartclk        = VR1000_BAUDBASE,
 191         },
 192         [3] = {
 193                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 194                 .irq            = IRQ_VR1000_SERIAL + 3,
 195                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 196                 .iotype         = UPIO_MEM,
 197                 .regshift       = 0,
 198                 .uartclk        = VR1000_BAUDBASE,
 199         },
 200         { },
 201 };
 202
 203 static struct platform_device serial_device = {
 204         .name                   = "serial8250",
 205         .id                     = PLAT8250_DEV_PLATFORM,
 206         .dev                    = {
 207                 .platform_data  = serial_platform_data,
 208         },
 209 };
 210
 211 /* DM9000 ethernet devices */
 212
 213 static struct resource vr1000_dm9k0_resource[] = {
 214         [0] = {
 215                 .start = S3C2410_CS5 + VR1000_PA_DM9000,
 216                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 3,
 217                 .flags = IORESOURCE_MEM
 218         },
 219         [1] = {
 220                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x40,
 221                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x7f,
 222                 .flags = IORESOURCE_MEM
 223         },
 224         [2] = {
 225                 .start = IRQ_VR1000_DM9000A,
 226                 .end   = IRQ_VR1000_DM9000A,
 227                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 228         }
 229
 230 };
 231
 232 static struct resource vr1000_dm9k1_resource[] = {
 233         [0] = {
 234                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x80,
 235                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x83,
 236                 .flags = IORESOURCE_MEM
 237         },
 238         [1] = {
 239                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0,
 240                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0xFF,
 241                 .flags = IORESOURCE_MEM
 242         },
 243         [2] = {
 244                 .start = IRQ_VR1000_DM9000N,
 245                 .end   = IRQ_VR1000_DM9000N,
 246                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 247         }
 248 };
 249
 250 /* for the moment we limit ourselves to 16bit IO until some
 251  * better IO routines can be written and tested
 252 */
 253
 254 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 255         .flags          = DM9000_PLATF_16BITONLY,
 256 };
 257
 258 static struct platform_device vr1000_dm9k0 = {
 259         .name           = "dm9000",
 260         .id             = 0,
 261         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 262         .resource       = vr1000_dm9k0_resource,
 263         .dev            = {
 264                 .platform_data = &vr1000_dm9k_platdata,
 265         }
 266 };
 267
 268 static struct platform_device vr1000_dm9k1 = {
 269         .name           = "dm9000",
 270         .id             = 1,
 271         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 272         .resource       = vr1000_dm9k1_resource,
 273         .dev            = {
 274                 .platform_data = &vr1000_dm9k_platdata,
 275         }
 276 };
 277
 278 /* LEDS */
 279
 280 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 281         .name           = "led1",
 282         .gpio           = S3C2410_GPB(0),
 283         .def_trigger    = "",
 284 };
 285
 286 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 287         .name           = "led2",
 288         .gpio           = S3C2410_GPB(1),
 289         .def_trigger    = "",
 290 };
 291
 292 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 293         .name           = "led3",
 294         .gpio           = S3C2410_GPB(2),
 295         .def_trigger    = "",
 296 };
 297
 298 static struct platform_device vr1000_led1 = {
 299         .name           = "s3c24xx_led",
 300         .id             = 1,
 301         .dev            = {
 302                 .platform_data  = &vr1000_led1_pdata,
 303         },
 304 };
 305
 306 static struct platform_device vr1000_led2 = {
 307         .name           = "s3c24xx_led",
 308         .id             = 2,
 309         .dev            = {
 310                 .platform_data  = &vr1000_led2_pdata,
 311         },
 312 };
 313
 314 static struct platform_device vr1000_led3 = {
 315         .name           = "s3c24xx_led",
 316         .id             = 3,
 317         .dev            = {
 318                 .platform_data  = &vr1000_led3_pdata,
 319         },
 320 };
 321
 322 /* I2C devices. */
 323
 324 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
 325         {
 326                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 327         }, {
 328                 I2C_BOARD_INFO("tmp101", 0x48),
 329         }, {
 330                 I2C_BOARD_INFO("m41st87", 0x68),
 331         },
 332 };
 333
 334 /* devices for this board */
 335
 336 static struct platform_device *vr1000_devices[] __initdata = {
 337         &s3c_device_ohci,
 338         &s3c_device_lcd,
 339         &s3c_device_wdt,
 340         &s3c_device_i2c0,
 341         &s3c_device_adc,
 342         &serial_device,
 343         &vr1000_dm9k0,
 344         &vr1000_dm9k1,
 345         &vr1000_led1,
 346         &vr1000_led2,
 347         &vr1000_led3,
 348 };
 349
 350 static struct clk *vr1000_clocks[] __initdata = {
 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         gpio_direction_output(S3C2410_GPB(9), 1);
 361 }
 362
 363 static void __init vr1000_map_io(void)
 364 {
 365         /* initialise clock sources */
 366
 367         s3c24xx_dclk0.parent = &clk_upll;
 368         s3c24xx_dclk0.rate   = 12*1000*1000;
 369
 370         s3c24xx_dclk1.parent = NULL;
 371         s3c24xx_dclk1.rate   = 3692307;
 372
 373         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
 374         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
 375
 376         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
 377
 378         s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks));
 379
 380         pm_power_off = vr1000_power_off;
 381
 382         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 383         s3c24xx_init_clocks(0);
 384         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 385 }
 386
 387 static void __init vr1000_init(void)
 388 {
 389         s3c_i2c0_set_platdata(NULL);
 390         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 391
 392         i2c_register_board_info(0, vr1000_i2c_devs,
 393                                 ARRAY_SIZE(vr1000_i2c_devs));
 394
 395         nor_simtec_init();
 396         simtec_audio_add(NULL, true, NULL);
 397
 398         WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
 399 }
 400
 401 MACHINE_START(VR1000, "Thorcom-VR1000")
 402         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 403         .atag_offset    = 0x100,
 404         .map_io         = vr1000_map_io,
 405         .init_machine   = vr1000_init,
 406         .init_irq       = s3c24xx_init_irq,
 407         .timer          = &s3c24xx_timer,
 408 MACHINE_END