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/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
  53 #include "usb-simtec.h"
  54 #include "nor-simtec.h"
  55
  56 /* macros for virtual address mods for the io space entries */
  57 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
  58 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
  59 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
  60 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
  61
  62 /* macros to modify the physical addresses for io space */
  63
  64 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
  65 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
  66 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
  67 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
  68
  69 static struct map_desc vr1000_iodesc[] __initdata = {
  70   /* ISA IO areas */
  71   {
  72           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
  73           .pfn          = PA_CS2(BAST_PA_ISAIO),
  74           .length       = SZ_16M,
  75           .type         = MT_DEVICE,
  76   }, {
  77           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
  78           .pfn          = PA_CS3(BAST_PA_ISAIO),
  79           .length       = SZ_16M,
  80           .type         = MT_DEVICE,
  81   },
  82
  83   /*  CPLD control registers, and external interrupt controls */
  84   {
  85           .virtual      = (u32)VR1000_VA_CTRL1,
  86           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
  87           .length       = SZ_1M,
  88           .type         = MT_DEVICE,
  89   }, {
  90           .virtual      = (u32)VR1000_VA_CTRL2,
  91           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
  92           .length       = SZ_1M,
  93           .type         = MT_DEVICE,
  94   }, {
  95           .virtual      = (u32)VR1000_VA_CTRL3,
  96           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
  97           .length       = SZ_1M,
  98           .type         = MT_DEVICE,
  99   }, {
 100           .virtual      = (u32)VR1000_VA_CTRL4,
 101           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
 102           .length       = SZ_1M,
 103           .type         = MT_DEVICE,
 104   },
 105 };
 106
 107 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 108 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 109 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 110
 111 /* uart clock source(s) */
 112
 113 static struct s3c24xx_uart_clksrc vr1000_serial_clocks[] = {
 114         [0] = {
 115                 .name           = "uclk",
 116                 .divisor        = 1,
 117                 .min_baud       = 0,
 118                 .max_baud       = 0,
 119         },
 120         [1] = {
 121                 .name           = "pclk",
 122                 .divisor        = 1,
 123                 .min_baud       = 0,
 124                 .max_baud       = 0.
 125         }
 126 };
 127
 128 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 129         [0] = {
 130                 .hwport      = 0,
 131                 .flags       = 0,
 132                 .ucon        = UCON,
 133                 .ulcon       = ULCON,
 134                 .ufcon       = UFCON,
 135                 .clocks      = vr1000_serial_clocks,
 136                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 137         },
 138         [1] = {
 139                 .hwport      = 1,
 140                 .flags       = 0,
 141                 .ucon        = UCON,
 142                 .ulcon       = ULCON,
 143                 .ufcon       = UFCON,
 144                 .clocks      = vr1000_serial_clocks,
 145                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 146         },
 147         /* port 2 is not actually used */
 148         [2] = {
 149                 .hwport      = 2,
 150                 .flags       = 0,
 151                 .ucon        = UCON,
 152                 .ulcon       = ULCON,
 153                 .ufcon       = UFCON,
 154                 .clocks      = vr1000_serial_clocks,
 155                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 156
 157         }
 158 };
 159
 160 /* definitions for the vr1000 extra 16550 serial ports */
 161
 162 #define VR1000_BAUDBASE (3692307)
 163
 164 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 165
 166 static struct plat_serial8250_port serial_platform_data[] = {
 167         [0] = {
 168                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 169                 .irq            = IRQ_VR1000_SERIAL + 0,
 170                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 171                 .iotype         = UPIO_MEM,
 172                 .regshift       = 0,
 173                 .uartclk        = VR1000_BAUDBASE,
 174         },
 175         [1] = {
 176                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 177                 .irq            = IRQ_VR1000_SERIAL + 1,
 178                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 179                 .iotype         = UPIO_MEM,
 180                 .regshift       = 0,
 181                 .uartclk        = VR1000_BAUDBASE,
 182         },
 183         [2] = {
 184                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 185                 .irq            = IRQ_VR1000_SERIAL + 2,
 186                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 187                 .iotype         = UPIO_MEM,
 188                 .regshift       = 0,
 189                 .uartclk        = VR1000_BAUDBASE,
 190         },
 191         [3] = {
 192                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 193                 .irq            = IRQ_VR1000_SERIAL + 3,
 194                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 195                 .iotype         = UPIO_MEM,
 196                 .regshift       = 0,
 197                 .uartclk        = VR1000_BAUDBASE,
 198         },
 199         { },
 200 };
 201
 202 static struct platform_device serial_device = {
 203         .name                   = "serial8250",
 204         .id                     = PLAT8250_DEV_PLATFORM,
 205         .dev                    = {
 206                 .platform_data  = serial_platform_data,
 207         },
 208 };
 209
 210 /* DM9000 ethernet devices */
 211
 212 static struct resource vr1000_dm9k0_resource[] = {
 213         [0] = {
 214                 .start = S3C2410_CS5 + VR1000_PA_DM9000,
 215                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 3,
 216                 .flags = IORESOURCE_MEM
 217         },
 218         [1] = {
 219                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x40,
 220                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x7f,
 221                 .flags = IORESOURCE_MEM
 222         },
 223         [2] = {
 224                 .start = IRQ_VR1000_DM9000A,
 225                 .end   = IRQ_VR1000_DM9000A,
 226                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 227         }
 228
 229 };
 230
 231 static struct resource vr1000_dm9k1_resource[] = {
 232         [0] = {
 233                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x80,
 234                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x83,
 235                 .flags = IORESOURCE_MEM
 236         },
 237         [1] = {
 238                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0,
 239                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0xFF,
 240                 .flags = IORESOURCE_MEM
 241         },
 242         [2] = {
 243                 .start = IRQ_VR1000_DM9000N,
 244                 .end   = IRQ_VR1000_DM9000N,
 245                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 246         }
 247 };
 248
 249 /* for the moment we limit ourselves to 16bit IO until some
 250  * better IO routines can be written and tested
 251 */
 252
 253 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 254         .flags          = DM9000_PLATF_16BITONLY,
 255 };
 256
 257 static struct platform_device vr1000_dm9k0 = {
 258         .name           = "dm9000",
 259         .id             = 0,
 260         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 261         .resource       = vr1000_dm9k0_resource,
 262         .dev            = {
 263                 .platform_data = &vr1000_dm9k_platdata,
 264         }
 265 };
 266
 267 static struct platform_device vr1000_dm9k1 = {
 268         .name           = "dm9000",
 269         .id             = 1,
 270         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 271         .resource       = vr1000_dm9k1_resource,
 272         .dev            = {
 273                 .platform_data = &vr1000_dm9k_platdata,
 274         }
 275 };
 276
 277 /* LEDS */
 278
 279 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 280         .name           = "led1",
 281         .gpio           = S3C2410_GPB(0),
 282         .def_trigger    = "",
 283 };
 284
 285 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 286         .name           = "led2",
 287         .gpio           = S3C2410_GPB(1),
 288         .def_trigger    = "",
 289 };
 290
 291 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 292         .name           = "led3",
 293         .gpio           = S3C2410_GPB(2),
 294         .def_trigger    = "",
 295 };
 296
 297 static struct platform_device vr1000_led1 = {
 298         .name           = "s3c24xx_led",
 299         .id             = 1,
 300         .dev            = {
 301                 .platform_data  = &vr1000_led1_pdata,
 302         },
 303 };
 304
 305 static struct platform_device vr1000_led2 = {
 306         .name           = "s3c24xx_led",
 307         .id             = 2,
 308         .dev            = {
 309                 .platform_data  = &vr1000_led2_pdata,
 310         },
 311 };
 312
 313 static struct platform_device vr1000_led3 = {
 314         .name           = "s3c24xx_led",
 315         .id             = 3,
 316         .dev            = {
 317                 .platform_data  = &vr1000_led3_pdata,
 318         },
 319 };
 320
 321 /* I2C devices. */
 322
 323 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
 324         {
 325                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 326         }, {
 327                 I2C_BOARD_INFO("tmp101", 0x48),
 328         }, {
 329                 I2C_BOARD_INFO("m41st87", 0x68),
 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_i2c0,
 340         &s3c_device_adc,
 341         &serial_device,
 342         &vr1000_dm9k0,
 343         &vr1000_dm9k1,
 344         &vr1000_led1,
 345         &vr1000_led2,
 346         &vr1000_led3,
 347 };
 348
 349 static struct clk *vr1000_clocks[] __initdata = {
 350         &s3c24xx_dclk0,
 351         &s3c24xx_dclk1,
 352         &s3c24xx_clkout0,
 353         &s3c24xx_clkout1,
 354         &s3c24xx_uclk,
 355 };
 356
 357 static void vr1000_power_off(void)
 358 {
 359         s3c2410_gpio_cfgpin(S3C2410_GPB(9), S3C2410_GPIO_OUTPUT);
 360         s3c2410_gpio_setpin(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 }
 397
 398 MACHINE_START(VR1000, "Thorcom-VR1000")
 399         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 400         .phys_io        = S3C2410_PA_UART,
 401         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 402         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 403         .map_io         = vr1000_map_io,
 404         .init_machine   = vr1000_init,
 405         .init_irq       = s3c24xx_init_irq,
 406         .timer          = &s3c24xx_timer,
 407 MACHINE_END