arch/arm/mach-s3c24xx/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 "simtec.h"
  55 #include "common.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 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 113         [0] = {
 114                 .hwport      = 0,
 115                 .flags       = 0,
 116                 .ucon        = UCON,
 117                 .ulcon       = ULCON,
 118                 .ufcon       = UFCON,
 119         },
 120         [1] = {
 121                 .hwport      = 1,
 122                 .flags       = 0,
 123                 .ucon        = UCON,
 124                 .ulcon       = ULCON,
 125                 .ufcon       = UFCON,
 126         },
 127         /* port 2 is not actually used */
 128         [2] = {
 129                 .hwport      = 2,
 130                 .flags       = 0,
 131                 .ucon        = UCON,
 132                 .ulcon       = ULCON,
 133                 .ufcon       = UFCON,
 134         }
 135 };
 136
 137 /* definitions for the vr1000 extra 16550 serial ports */
 138
 139 #define VR1000_BAUDBASE (3692307)
 140
 141 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 142
 143 static struct plat_serial8250_port serial_platform_data[] = {
 144         [0] = {
 145                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 146                 .irq            = IRQ_VR1000_SERIAL + 0,
 147                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 148                 .iotype         = UPIO_MEM,
 149                 .regshift       = 0,
 150                 .uartclk        = VR1000_BAUDBASE,
 151         },
 152         [1] = {
 153                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 154                 .irq            = IRQ_VR1000_SERIAL + 1,
 155                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 156                 .iotype         = UPIO_MEM,
 157                 .regshift       = 0,
 158                 .uartclk        = VR1000_BAUDBASE,
 159         },
 160         [2] = {
 161                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 162                 .irq            = IRQ_VR1000_SERIAL + 2,
 163                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 164                 .iotype         = UPIO_MEM,
 165                 .regshift       = 0,
 166                 .uartclk        = VR1000_BAUDBASE,
 167         },
 168         [3] = {
 169                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 170                 .irq            = IRQ_VR1000_SERIAL + 3,
 171                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 172                 .iotype         = UPIO_MEM,
 173                 .regshift       = 0,
 174                 .uartclk        = VR1000_BAUDBASE,
 175         },
 176         { },
 177 };
 178
 179 static struct platform_device serial_device = {
 180         .name                   = "serial8250",
 181         .id                     = PLAT8250_DEV_PLATFORM,
 182         .dev                    = {
 183                 .platform_data  = serial_platform_data,
 184         },
 185 };
 186
 187 /* DM9000 ethernet devices */
 188
 189 static struct resource vr1000_dm9k0_resource[] = {
 190         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
 191         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
 192         [2] = DEFINE_RES_NAMED(IRQ_VR1000_DM9000A, 1, NULL, IORESOURCE_IRQ \
 193                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 194 };
 195
 196 static struct resource vr1000_dm9k1_resource[] = {
 197         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
 198         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
 199         [2] = DEFINE_RES_NAMED(IRQ_VR1000_DM9000N, 1, NULL, IORESOURCE_IRQ \
 200                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 201 };
 202
 203 /* for the moment we limit ourselves to 16bit IO until some
 204  * better IO routines can be written and tested
 205 */
 206
 207 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 208         .flags          = DM9000_PLATF_16BITONLY,
 209 };
 210
 211 static struct platform_device vr1000_dm9k0 = {
 212         .name           = "dm9000",
 213         .id             = 0,
 214         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 215         .resource       = vr1000_dm9k0_resource,
 216         .dev            = {
 217                 .platform_data = &vr1000_dm9k_platdata,
 218         }
 219 };
 220
 221 static struct platform_device vr1000_dm9k1 = {
 222         .name           = "dm9000",
 223         .id             = 1,
 224         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 225         .resource       = vr1000_dm9k1_resource,
 226         .dev            = {
 227                 .platform_data = &vr1000_dm9k_platdata,
 228         }
 229 };
 230
 231 /* LEDS */
 232
 233 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 234         .name           = "led1",
 235         .gpio           = S3C2410_GPB(0),
 236         .def_trigger    = "",
 237 };
 238
 239 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 240         .name           = "led2",
 241         .gpio           = S3C2410_GPB(1),
 242         .def_trigger    = "",
 243 };
 244
 245 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 246         .name           = "led3",
 247         .gpio           = S3C2410_GPB(2),
 248         .def_trigger    = "",
 249 };
 250
 251 static struct platform_device vr1000_led1 = {
 252         .name           = "s3c24xx_led",
 253         .id             = 1,
 254         .dev            = {
 255                 .platform_data  = &vr1000_led1_pdata,
 256         },
 257 };
 258
 259 static struct platform_device vr1000_led2 = {
 260         .name           = "s3c24xx_led",
 261         .id             = 2,
 262         .dev            = {
 263                 .platform_data  = &vr1000_led2_pdata,
 264         },
 265 };
 266
 267 static struct platform_device vr1000_led3 = {
 268         .name           = "s3c24xx_led",
 269         .id             = 3,
 270         .dev            = {
 271                 .platform_data  = &vr1000_led3_pdata,
 272         },
 273 };
 274
 275 /* I2C devices. */
 276
 277 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
 278         {
 279                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 280         }, {
 281                 I2C_BOARD_INFO("tmp101", 0x48),
 282         }, {
 283                 I2C_BOARD_INFO("m41st87", 0x68),
 284         },
 285 };
 286
 287 /* devices for this board */
 288
 289 static struct platform_device *vr1000_devices[] __initdata = {
 290         &s3c_device_ohci,
 291         &s3c_device_lcd,
 292         &s3c_device_wdt,
 293         &s3c_device_i2c0,
 294         &s3c_device_adc,
 295         &serial_device,
 296         &vr1000_dm9k0,
 297         &vr1000_dm9k1,
 298         &vr1000_led1,
 299         &vr1000_led2,
 300         &vr1000_led3,
 301 };
 302
 303 static struct clk *vr1000_clocks[] __initdata = {
 304         &s3c24xx_dclk0,
 305         &s3c24xx_dclk1,
 306         &s3c24xx_clkout0,
 307         &s3c24xx_clkout1,
 308         &s3c24xx_uclk,
 309 };
 310
 311 static void vr1000_power_off(void)
 312 {
 313         gpio_direction_output(S3C2410_GPB(9), 1);
 314 }
 315
 316 static void __init vr1000_map_io(void)
 317 {
 318         /* initialise clock sources */
 319
 320         s3c24xx_dclk0.parent = &clk_upll;
 321         s3c24xx_dclk0.rate   = 12*1000*1000;
 322
 323         s3c24xx_dclk1.parent = NULL;
 324         s3c24xx_dclk1.rate   = 3692307;
 325
 326         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
 327         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
 328
 329         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
 330
 331         s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks));
 332
 333         pm_power_off = vr1000_power_off;
 334
 335         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 336         s3c24xx_init_clocks(0);
 337         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 338 }
 339
 340 static void __init vr1000_init(void)
 341 {
 342         s3c_i2c0_set_platdata(NULL);
 343         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 344
 345         i2c_register_board_info(0, vr1000_i2c_devs,
 346                                 ARRAY_SIZE(vr1000_i2c_devs));
 347
 348         nor_simtec_init();
 349         simtec_audio_add(NULL, true, NULL);
 350
 351         WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
 352 }
 353
 354 MACHINE_START(VR1000, "Thorcom-VR1000")
 355         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 356         .atag_offset    = 0x100,
 357         .map_io         = vr1000_map_io,
 358         .init_machine   = vr1000_init,
 359         .init_irq       = s3c24xx_init_irq,
 360         .timer          = &s3c24xx_timer,
 361         .restart        = s3c2410_restart,
 362 MACHINE_END