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

   1 /* linux/arch/arm/mach-s3c2410/mach-vr1000.c
   2  *
   3  * Copyright (c) 2003-2005 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
  23 #include <linux/serial.h>
  24 #include <linux/tty.h>
  25 #include <linux/serial_8250.h>
  26 #include <linux/serial_reg.h>
  27
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/map.h>
  30 #include <asm/mach/irq.h>
  31
  32 #include <asm/arch/bast-map.h>
  33 #include <asm/arch/vr1000-map.h>
  34 #include <asm/arch/vr1000-irq.h>
  35 #include <asm/arch/vr1000-cpld.h>
  36
  37 #include <asm/hardware.h>
  38 #include <asm/io.h>
  39 #include <asm/irq.h>
  40 #include <asm/mach-types.h>
  41
  42 #include <asm/arch/regs-serial.h>
  43 #include <asm/arch/regs-gpio.h>
  44
  45 #include "clock.h"
  46 #include "devs.h"
  47 #include "cpu.h"
  48 #include "usb-simtec.h"
  49
  50 /* macros for virtual address mods for the io space entries */
  51 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
  52 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
  53 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
  54 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
  55
  56 /* macros to modify the physical addresses for io space */
  57
  58 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
  59 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
  60 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
  61 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
  62
  63 static struct map_desc vr1000_iodesc[] __initdata = {
  64   /* ISA IO areas */
  65   {
  66           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
  67           .pfn          = PA_CS2(BAST_PA_ISAIO),
  68           .length       = SZ_16M,
  69           .type         = MT_DEVICE,
  70   }, {
  71           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
  72           .pfn          = PA_CS3(BAST_PA_ISAIO),
  73           .length       = SZ_16M,
  74           .type         = MT_DEVICE,
  75   },
  76
  77   /*  CPLD control registers, and external interrupt controls */
  78   {
  79           .virtual      = (u32)VR1000_VA_CTRL1,
  80           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
  81           .length       = SZ_1M,
  82           .type         = MT_DEVICE,
  83   }, {
  84           .virtual      = (u32)VR1000_VA_CTRL2,
  85           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
  86           .length       = SZ_1M,
  87           .type         = MT_DEVICE,
  88   }, {
  89           .virtual      = (u32)VR1000_VA_CTRL3,
  90           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
  91           .length       = SZ_1M,
  92           .type         = MT_DEVICE,
  93   }, {
  94           .virtual      = (u32)VR1000_VA_CTRL4,
  95           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
  96           .length       = SZ_1M,
  97           .type         = MT_DEVICE,
  98   },
  99
 100   /* peripheral space... one for each of fast/slow/byte/16bit */
 101   /* note, ide is only decoded in word space, even though some registers
 102    * are only 8bit */
 103
 104   /* slow, byte */
 105   { VA_C2(VR1000_VA_IDEPRI),  PA_CS3(VR1000_PA_IDEPRI),   SZ_1M,  MT_DEVICE },
 106   { VA_C2(VR1000_VA_IDESEC),  PA_CS3(VR1000_PA_IDESEC),   SZ_1M,  MT_DEVICE },
 107   { VA_C2(VR1000_VA_IDEPRIAUX), PA_CS3(VR1000_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
 108   { VA_C2(VR1000_VA_IDESECAUX), PA_CS3(VR1000_PA_IDESECAUX), SZ_1M, MT_DEVICE },
 109
 110   /* slow, word */
 111   { VA_C3(VR1000_VA_IDEPRI),  PA_CS3(VR1000_PA_IDEPRI),   SZ_1M,  MT_DEVICE },
 112   { VA_C3(VR1000_VA_IDESEC),  PA_CS3(VR1000_PA_IDESEC),   SZ_1M,  MT_DEVICE },
 113   { VA_C3(VR1000_VA_IDEPRIAUX), PA_CS3(VR1000_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
 114   { VA_C3(VR1000_VA_IDESECAUX), PA_CS3(VR1000_PA_IDESECAUX), SZ_1M, MT_DEVICE },
 115
 116   /* fast, byte */
 117   { VA_C4(VR1000_VA_IDEPRI),  PA_CS5(VR1000_PA_IDEPRI),   SZ_1M,  MT_DEVICE },
 118   { VA_C4(VR1000_VA_IDESEC),  PA_CS5(VR1000_PA_IDESEC),   SZ_1M,  MT_DEVICE },
 119   { VA_C4(VR1000_VA_IDEPRIAUX), PA_CS5(VR1000_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
 120   { VA_C4(VR1000_VA_IDESECAUX), PA_CS5(VR1000_PA_IDESECAUX), SZ_1M, MT_DEVICE },
 121
 122   /* fast, word */
 123   { VA_C5(VR1000_VA_IDEPRI),  PA_CS5(VR1000_PA_IDEPRI),   SZ_1M,  MT_DEVICE },
 124   { VA_C5(VR1000_VA_IDESEC),  PA_CS5(VR1000_PA_IDESEC),   SZ_1M,  MT_DEVICE },
 125   { VA_C5(VR1000_VA_IDEPRIAUX), PA_CS5(VR1000_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
 126   { VA_C5(VR1000_VA_IDESECAUX), PA_CS5(VR1000_PA_IDESECAUX), SZ_1M, MT_DEVICE },
 127 };
 128
 129 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 130 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 131 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 132
 133 /* uart clock source(s) */
 134
 135 static struct s3c24xx_uart_clksrc vr1000_serial_clocks[] = {
 136         [0] = {
 137                 .name           = "uclk",
 138                 .divisor        = 1,
 139                 .min_baud       = 0,
 140                 .max_baud       = 0,
 141         },
 142         [1] = {
 143                 .name           = "pclk",
 144                 .divisor        = 1,
 145                 .min_baud       = 0,
 146                 .max_baud       = 0.
 147         }
 148 };
 149
 150 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 151         [0] = {
 152                 .hwport      = 0,
 153                 .flags       = 0,
 154                 .ucon        = UCON,
 155                 .ulcon       = ULCON,
 156                 .ufcon       = UFCON,
 157                 .clocks      = vr1000_serial_clocks,
 158                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 159         },
 160         [1] = {
 161                 .hwport      = 1,
 162                 .flags       = 0,
 163                 .ucon        = UCON,
 164                 .ulcon       = ULCON,
 165                 .ufcon       = UFCON,
 166                 .clocks      = vr1000_serial_clocks,
 167                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 168         },
 169         /* port 2 is not actually used */
 170         [2] = {
 171                 .hwport      = 2,
 172                 .flags       = 0,
 173                 .ucon        = UCON,
 174                 .ulcon       = ULCON,
 175                 .ufcon       = UFCON,
 176                 .clocks      = vr1000_serial_clocks,
 177                 .clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 178
 179         }
 180 };
 181
 182 /* definitions for the vr1000 extra 16550 serial ports */
 183
 184 #define VR1000_BAUDBASE (3692307)
 185
 186 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 187
 188 static struct plat_serial8250_port serial_platform_data[] = {
 189         [0] = {
 190                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 191                 .irq            = IRQ_VR1000_SERIAL + 0,
 192                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 193                 .iotype         = UPIO_MEM,
 194                 .regshift       = 0,
 195                 .uartclk        = VR1000_BAUDBASE,
 196         },
 197         [1] = {
 198                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 199                 .irq            = IRQ_VR1000_SERIAL + 1,
 200                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 201                 .iotype         = UPIO_MEM,
 202                 .regshift       = 0,
 203                 .uartclk        = VR1000_BAUDBASE,
 204         },
 205         [2] = {
 206                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 207                 .irq            = IRQ_VR1000_SERIAL + 2,
 208                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 209                 .iotype         = UPIO_MEM,
 210                 .regshift       = 0,
 211                 .uartclk        = VR1000_BAUDBASE,
 212         },
 213         [3] = {
 214                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 215                 .irq            = IRQ_VR1000_SERIAL + 3,
 216                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 217                 .iotype         = UPIO_MEM,
 218                 .regshift       = 0,
 219                 .uartclk        = VR1000_BAUDBASE,
 220         },
 221         { },
 222 };
 223
 224 static struct platform_device serial_device = {
 225         .name                   = "serial8250",
 226         .id                     = PLAT8250_DEV_PLATFORM,
 227         .dev                    = {
 228                 .platform_data  = serial_platform_data,
 229         },
 230 };
 231
 232 /* MTD NOR Flash */
 233
 234 static struct resource vr1000_nor_resource[] = {
 235         [0] = {
 236                 .start  = S3C2410_CS1 + 0x4000000,
 237                 .end    = S3C2410_CS1 + 0x4000000 + SZ_16M - 1,
 238                 .flags  = IORESOURCE_MEM,
 239         }
 240 };
 241
 242 static struct platform_device vr1000_nor = {
 243         .name           = "bast-nor",
 244         .id             = -1,
 245         .num_resources  = ARRAY_SIZE(vr1000_nor_resource),
 246         .resource       = vr1000_nor_resource,
 247 };
 248
 249 /* DM9000 ethernet devices */
 250
 251 static struct resource vr1000_dm9k0_resource[] = {
 252         [0] = {
 253                 .start = S3C2410_CS5 + VR1000_PA_DM9000,
 254                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 3,
 255                 .flags = IORESOURCE_MEM
 256         },
 257         [1] = {
 258                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x40,
 259                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x7f,
 260                 .flags = IORESOURCE_MEM
 261         },
 262         [2] = {
 263                 .start = IRQ_VR1000_DM9000A,
 264                 .end   = IRQ_VR1000_DM9000A,
 265                 .flags = IORESOURCE_IRQ
 266         }
 267
 268 };
 269
 270 static struct resource vr1000_dm9k1_resource[] = {
 271         [0] = {
 272                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0x80,
 273                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0x83,
 274                 .flags = IORESOURCE_MEM
 275         },
 276         [1] = {
 277                 .start = S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0,
 278                 .end   = S3C2410_CS5 + VR1000_PA_DM9000 + 0xFF,
 279                 .flags = IORESOURCE_MEM
 280         },
 281         [2] = {
 282                 .start = IRQ_VR1000_DM9000N,
 283                 .end   = IRQ_VR1000_DM9000N,
 284                 .flags = IORESOURCE_IRQ
 285         }
 286 };
 287
 288 /* for the moment we limit ourselves to 16bit IO until some
 289  * better IO routines can be written and tested
 290 */
 291
 292 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 293         .flags          = DM9000_PLATF_16BITONLY,
 294 };
 295
 296 static struct platform_device vr1000_dm9k0 = {
 297         .name           = "dm9000",
 298         .id             = 0,
 299         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 300         .resource       = vr1000_dm9k0_resource,
 301         .dev            = {
 302                 .platform_data = &vr1000_dm9k_platdata,
 303         }
 304 };
 305
 306 static struct platform_device vr1000_dm9k1 = {
 307         .name           = "dm9000",
 308         .id             = 1,
 309         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 310         .resource       = vr1000_dm9k1_resource,
 311         .dev            = {
 312                 .platform_data = &vr1000_dm9k_platdata,
 313         }
 314 };
 315
 316 /* devices for this board */
 317
 318 static struct platform_device *vr1000_devices[] __initdata = {
 319         &s3c_device_usb,
 320         &s3c_device_lcd,
 321         &s3c_device_wdt,
 322         &s3c_device_i2c,
 323         &s3c_device_iis,
 324         &s3c_device_adc,
 325         &serial_device,
 326         &vr1000_nor,
 327         &vr1000_dm9k0,
 328         &vr1000_dm9k1
 329 };
 330
 331 static struct clk *vr1000_clocks[] = {
 332         &s3c24xx_dclk0,
 333         &s3c24xx_dclk1,
 334         &s3c24xx_clkout0,
 335         &s3c24xx_clkout1,
 336         &s3c24xx_uclk,
 337 };
 338
 339 static struct s3c24xx_board vr1000_board __initdata = {
 340         .devices       = vr1000_devices,
 341         .devices_count = ARRAY_SIZE(vr1000_devices),
 342         .clocks        = vr1000_clocks,
 343         .clocks_count  = ARRAY_SIZE(vr1000_clocks),
 344 };
 345
 346 static void vr1000_power_off(void)
 347 {
 348         s3c2410_gpio_cfgpin(S3C2410_GPB9, S3C2410_GPB9_OUTP);
 349         s3c2410_gpio_setpin(S3C2410_GPB9, 1);
 350 }
 351
 352 static void __init vr1000_map_io(void)
 353 {
 354         /* initialise clock sources */
 355
 356         s3c24xx_dclk0.parent = NULL;
 357         s3c24xx_dclk0.rate   = 12*1000*1000;
 358
 359         s3c24xx_dclk1.parent = NULL;
 360         s3c24xx_dclk1.rate   = 3692307;
 361
 362         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
 363         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
 364
 365         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
 366
 367         pm_power_off = vr1000_power_off;
 368
 369         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 370         s3c24xx_init_clocks(0);
 371         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 372         s3c24xx_set_board(&vr1000_board);
 373         usb_simtec_init();
 374 }
 375
 376
 377 MACHINE_START(VR1000, "Thorcom-VR1000")
 378         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 379         .phys_io        = S3C2410_PA_UART,
 380         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 381         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 382         .map_io         = vr1000_map_io,
 383         .init_irq       = s3c24xx_init_irq,
 384         .timer          = &s3c24xx_timer,
 385 MACHINE_END