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 #include <plat/iic.h>
  51
  52 #include "usb-simtec.h"
  53 #include "nor-simtec.h"
  54
  55 /* macros for virtual address mods for the io space entries */
  56 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
  57 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
  58 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
  59 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
  60
  61 /* macros to modify the physical addresses for io space */
  62
  63 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
  64 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
  65 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
  66 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
  67
  68 static struct map_desc vr1000_iodesc[] __initdata = {
  69   /* ISA IO areas */
  70   {
  71           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
  72           .pfn          = PA_CS2(BAST_PA_ISAIO),
  73           .length       = SZ_16M,
  74           .type         = MT_DEVICE,
  75   }, {
  76           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
  77           .pfn          = PA_CS3(BAST_PA_ISAIO),
  78           .length       = SZ_16M,
  79           .type         = MT_DEVICE,
  80   },
  81
  82   /*  CPLD control registers, and external interrupt controls */
  83   {
  84           .virtual      = (u32)VR1000_VA_CTRL1,
  85           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
  86           .length       = SZ_1M,
  87           .type         = MT_DEVICE,
  88   }, {
  89           .virtual      = (u32)VR1000_VA_CTRL2,
  90           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
  91           .length       = SZ_1M,
  92           .type         = MT_DEVICE,
  93   }, {
  94           .virtual      = (u32)VR1000_VA_CTRL3,
  95           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
  96           .length       = SZ_1M,
  97           .type         = MT_DEVICE,
  98   }, {
  99           .virtual      = (u32)VR1000_VA_CTRL4,
 100           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
 101           .length       = SZ_1M,
 102           .type         = MT_DEVICE,
 103   },
 104 };
 105
 106 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 107 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 108 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 109
 110 /* uart clock source(s) */
 111
 112 static struct s3c24xx_uart_clksrc vr1000_serial_clocks[] = {
 113         [0] = {
 114                 .name           = "uclk",
 115                 .divisor        = 1,
 116                 .min_baud       = 0,
 117                 .max_baud       = 0,
 118         },
 119         [1] = {
 120                 .name           = "pclk",
 121                 .divisor        = 1,
 122                 .min_baud       = 0,
 123                 .max_baud       = 0.
 124         }
 125 };
 126
 127 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 128         [0] = {
 129                 .hwport      = 0,
 130                 .flags       = 0,
 131                 .ucon        = UCON,
 132                 .ulcon       = ULCON,
 133                 .ufcon       = UFCON,
 134                 .clocks      = vr1000_serial_clocks,
 135                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 136         },
 137         [1] = {
 138                 .hwport      = 1,
 139                 .flags       = 0,
 140                 .ucon        = UCON,
 141                 .ulcon       = ULCON,
 142                 .ufcon       = UFCON,
 143                 .clocks      = vr1000_serial_clocks,
 144                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 145         },
 146         /* port 2 is not actually used */
 147         [2] = {
 148                 .hwport      = 2,
 149                 .flags       = 0,
 150                 .ucon        = UCON,
 151                 .ulcon       = ULCON,
 152                 .ufcon       = UFCON,
 153                 .clocks      = vr1000_serial_clocks,
 154                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 155
 156         }
 157 };
 158
 159 /* definitions for the vr1000 extra 16550 serial ports */
 160
 161 #define VR1000_BAUDBASE (3692307)
 162
 163 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 164
 165 static struct plat_serial8250_port serial_platform_data[] = {
 166         [0] = {
 167                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 168                 .irq            = IRQ_VR1000_SERIAL + 0,
 169                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 170                 .iotype         = UPIO_MEM,
 171                 .regshift       = 0,
 172                 .uartclk        = VR1000_BAUDBASE,
 173         },
 174         [1] = {
 175                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 176                 .irq            = IRQ_VR1000_SERIAL + 1,
 177                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 178                 .iotype         = UPIO_MEM,
 179                 .regshift       = 0,
 180                 .uartclk        = VR1000_BAUDBASE,
 181         },
 182         [2] = {
 183                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 184                 .irq            = IRQ_VR1000_SERIAL + 2,
 185                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 186                 .iotype         = UPIO_MEM,
 187                 .regshift       = 0,
 188                 .uartclk        = VR1000_BAUDBASE,
 189         },
 190         [3] = {
 191                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 192                 .irq            = IRQ_VR1000_SERIAL + 3,
 193                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 194                 .iotype         = UPIO_MEM,
 195                 .regshift       = 0,
 196                 .uartclk        = VR1000_BAUDBASE,
 197         },
 198         { },
 199 };
 200
 201 static struct platform_device serial_device = {
 202         .name                   = "serial8250",
 203         .id                     = PLAT8250_DEV_PLATFORM,
 204         .dev                    = {
 205                 .platform_data  = serial_platform_data,
 206         },
 207 };
 208
 209 /* DM9000 ethernet devices */
 210
 211 static struct resource vr1000_dm9k0_resource[] = {
 212         [0] = {
 213                 .start = S3C2410_CS5 + VR1000_PA_DM9000,
 214                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 3,
 215                 .flags = IORESOURCE_MEM
 216         },
 217         [1] = {
 218                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x40,
 219                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x7f,
 220                 .flags = IORESOURCE_MEM
 221         },
 222         [2] = {
 223                 .start = IRQ_VR1000_DM9000A,
 224                 .end   = IRQ_VR1000_DM9000A,
 225                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 226         }
 227
 228 };
 229
 230 static struct resource vr1000_dm9k1_resource[] = {
 231         [0] = {
 232                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x80,
 233                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x83,
 234                 .flags = IORESOURCE_MEM
 235         },
 236         [1] = {
 237                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0,
 238                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0xFF,
 239                 .flags = IORESOURCE_MEM
 240         },
 241         [2] = {
 242                 .start = IRQ_VR1000_DM9000N,
 243                 .end   = IRQ_VR1000_DM9000N,
 244                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 245         }
 246 };
 247
 248 /* for the moment we limit ourselves to 16bit IO until some
 249  * better IO routines can be written and tested
 250 */
 251
 252 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 253         .flags          = DM9000_PLATF_16BITONLY,
 254 };
 255
 256 static struct platform_device vr1000_dm9k0 = {
 257         .name           = "dm9000",
 258         .id             = 0,
 259         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 260         .resource       = vr1000_dm9k0_resource,
 261         .dev            = {
 262                 .platform_data = &vr1000_dm9k_platdata,
 263         }
 264 };
 265
 266 static struct platform_device vr1000_dm9k1 = {
 267         .name           = "dm9000",
 268         .id             = 1,
 269         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 270         .resource       = vr1000_dm9k1_resource,
 271         .dev            = {
 272                 .platform_data = &vr1000_dm9k_platdata,
 273         }
 274 };
 275
 276 /* LEDS */
 277
 278 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 279         .name           = "led1",
 280         .gpio           = S3C2410_GPB0,
 281         .def_trigger    = "",
 282 };
 283
 284 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 285         .name           = "led2",
 286         .gpio           = S3C2410_GPB1,
 287         .def_trigger    = "",
 288 };
 289
 290 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 291         .name           = "led3",
 292         .gpio           = S3C2410_GPB2,
 293         .def_trigger    = "",
 294 };
 295
 296 static struct platform_device vr1000_led1 = {
 297         .name           = "s3c24xx_led",
 298         .id             = 1,
 299         .dev            = {
 300                 .platform_data  = &vr1000_led1_pdata,
 301         },
 302 };
 303
 304 static struct platform_device vr1000_led2 = {
 305         .name           = "s3c24xx_led",
 306         .id             = 2,
 307         .dev            = {
 308                 .platform_data  = &vr1000_led2_pdata,
 309         },
 310 };
 311
 312 static struct platform_device vr1000_led3 = {
 313         .name           = "s3c24xx_led",
 314         .id             = 3,
 315         .dev            = {
 316                 .platform_data  = &vr1000_led3_pdata,
 317         },
 318 };
 319
 320 /* I2C devices. */
 321
 322 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
 323         {
 324                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 325         }, {
 326                 I2C_BOARD_INFO("tmp101", 0x48),
 327         }, {
 328                 I2C_BOARD_INFO("m41st87", 0x68),
 329         },
 330 };
 331
 332 /* devices for this board */
 333
 334 static struct platform_device *vr1000_devices[] __initdata = {
 335         &s3c_device_usb,
 336         &s3c_device_lcd,
 337         &s3c_device_wdt,
 338         &s3c_device_i2c0,
 339         &s3c_device_adc,
 340         &serial_device,
 341         &vr1000_dm9k0,
 342         &vr1000_dm9k1,
 343         &vr1000_led1,
 344         &vr1000_led2,
 345         &vr1000_led3,
 346 };
 347
 348 static struct clk *vr1000_clocks[] __initdata = {
 349         &s3c24xx_dclk0,
 350         &s3c24xx_dclk1,
 351         &s3c24xx_clkout0,
 352         &s3c24xx_clkout1,
 353         &s3c24xx_uclk,
 354 };
 355
 356 static void vr1000_power_off(void)
 357 {
 358         s3c2410_gpio_cfgpin(S3C2410_GPB9, S3C2410_GPB9_OUTP);
 359         s3c2410_gpio_setpin(S3C2410_GPB9, 1);
 360 }
 361
 362 static void __init vr1000_map_io(void)
 363 {
 364         /* initialise clock sources */
 365
 366         s3c24xx_dclk0.parent = &clk_upll;
 367         s3c24xx_dclk0.rate   = 12*1000*1000;
 368
 369         s3c24xx_dclk1.parent = NULL;
 370         s3c24xx_dclk1.rate   = 3692307;
 371
 372         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
 373         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
 374
 375         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
 376
 377         s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks));
 378
 379         pm_power_off = vr1000_power_off;
 380
 381         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 382         s3c24xx_init_clocks(0);
 383         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 384 }
 385
 386 static void __init vr1000_init(void)
 387 {
 388         s3c_i2c0_set_platdata(NULL);
 389         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 390
 391         i2c_register_board_info(0, vr1000_i2c_devs,
 392                                 ARRAY_SIZE(vr1000_i2c_devs));
 393
 394         nor_simtec_init();
 395 }
 396
 397 MACHINE_START(VR1000, "Thorcom-VR1000")
 398         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 399         .phys_io        = S3C2410_PA_UART,
 400         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 401         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 402         .map_io         = vr1000_map_io,
 403         .init_machine   = vr1000_init,
 404         .init_irq       = s3c24xx_init_irq,
 405         .timer          = &s3c24xx_timer,
 406 MACHINE_END