git.oblomov.eu Git - linux-2.6/blob - arch/arm/mach-sa1100/jornada720.c

   1 /*
   2  * linux/arch/arm/mach-sa1100/jornada720.c
   3  *
   4  * HP Jornada720 init code
   5  *
   6  * Copyright (C) 2006 Filip Zyzniewski <filip.zyzniewski@tefnet.pl>
   7  *  Copyright (C) 2005 Michael Gernoth <michael@gernoth.net>
   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/init.h>
  16 #include <linux/kernel.h>
  17 #include <linux/tty.h>
  18 #include <linux/delay.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/ioport.h>
  21 #include <linux/mtd/mtd.h>
  22 #include <linux/mtd/partitions.h>
  23 #include <video/s1d13xxxfb.h>
  24
  25 #include <asm/hardware.h>
  26 #include <asm/hardware/sa1111.h>
  27 #include <asm/irq.h>
  28 #include <asm/mach-types.h>
  29 #include <asm/setup.h>
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/flash.h>
  32 #include <asm/mach/map.h>
  33 #include <asm/mach/serial_sa1100.h>
  34
  35 #include "generic.h"
  36
  37 /*
  38  * HP Documentation referred in this file:
  39  * http://www.jlime.com/downloads/development/docs/jornada7xx/jornada720.txt
  40  */
  41
  42 /* line 110 of HP's doc */
  43 #define TUCR_VAL        0x20000400
  44
  45 /* memory space (line 52 of HP's doc) */
  46 #define SA1111REGSTART  0x40000000
  47 #define SA1111REGLEN    0x00001fff
  48 #define EPSONREGSTART   0x48000000
  49 #define EPSONREGLEN     0x00100000
  50 #define EPSONFBSTART    0x48200000
  51 /* 512kB framebuffer */
  52 #define EPSONFBLEN      512*1024
  53
  54 static struct s1d13xxxfb_regval s1d13xxxfb_initregs[] = {
  55         /* line 344 of HP's doc */
  56         {0x0001,0x00},  // Miscellaneous Register
  57         {0x01FC,0x00},  // Display Mode Register
  58         {0x0004,0x00},  // General IO Pins Configuration Register 0
  59         {0x0005,0x00},  // General IO Pins Configuration Register 1
  60         {0x0008,0x00},  // General IO Pins Control Register 0
  61         {0x0009,0x00},  // General IO Pins Control Register 1
  62         {0x0010,0x01},  // Memory Clock Configuration Register
  63         {0x0014,0x11},  // LCD Pixel Clock Configuration Register
  64         {0x0018,0x01},  // CRT/TV Pixel Clock Configuration Register
  65         {0x001C,0x01},  // MediaPlug Clock Configuration Register
  66         {0x001E,0x01},  // CPU To Memory Wait State Select Register
  67         {0x0020,0x00},  // Memory Configuration Register
  68         {0x0021,0x45},  // DRAM Refresh Rate Register
  69         {0x002A,0x01},  // DRAM Timings Control Register 0
  70         {0x002B,0x03},  // DRAM Timings Control Register 1
  71         {0x0030,0x1c},  // Panel Type Register
  72         {0x0031,0x00},  // MOD Rate Register
  73         {0x0032,0x4F},  // LCD Horizontal Display Width Register
  74         {0x0034,0x07},  // LCD Horizontal Non-Display Period Register
  75         {0x0035,0x01},  // TFT FPLINE Start Position Register
  76         {0x0036,0x0B},  // TFT FPLINE Pulse Width Register
  77         {0x0038,0xEF},  // LCD Vertical Display Height Register 0
  78         {0x0039,0x00},  // LCD Vertical Display Height Register 1
  79         {0x003A,0x13},  // LCD Vertical Non-Display Period Register
  80         {0x003B,0x0B},  // TFT FPFRAME Start Position Register
  81         {0x003C,0x01},  // TFT FPFRAME Pulse Width Register
  82         {0x0040,0x05},  // LCD Display Mode Register (2:4bpp,3:8bpp,5:16bpp)
  83         {0x0041,0x00},  // LCD Miscellaneous Register
  84         {0x0042,0x00},  // LCD Display Start Address Register 0
  85         {0x0043,0x00},  // LCD Display Start Address Register 1
  86         {0x0044,0x00},  // LCD Display Start Address Register 2
  87         {0x0046,0x80},  // LCD Memory Address Offset Register 0
  88         {0x0047,0x02},  // LCD Memory Address Offset Register 1
  89         {0x0048,0x00},  // LCD Pixel Panning Register
  90         {0x004A,0x00},  // LCD Display FIFO High Threshold Control Register
  91         {0x004B,0x00},  // LCD Display FIFO Low Threshold Control Register
  92         {0x0050,0x4F},  // CRT/TV Horizontal Display Width Register
  93         {0x0052,0x13},  // CRT/TV Horizontal Non-Display Period Register
  94         {0x0053,0x01},  // CRT/TV HRTC Start Position Register
  95         {0x0054,0x0B},  // CRT/TV HRTC Pulse Width Register
  96         {0x0056,0xDF},  // CRT/TV Vertical Display Height Register 0
  97         {0x0057,0x01},  // CRT/TV Vertical Display Height Register 1
  98         {0x0058,0x2B},  // CRT/TV Vertical Non-Display Period Register
  99         {0x0059,0x09},  // CRT/TV VRTC Start Position Register
 100         {0x005A,0x01},  // CRT/TV VRTC Pulse Width Register
 101         {0x005B,0x10},  // TV Output Control Register
 102         {0x0060,0x03},  // CRT/TV Display Mode Register (2:4bpp,3:8bpp,5:16bpp)
 103         {0x0062,0x00},  // CRT/TV Display Start Address Register 0
 104         {0x0063,0x00},  // CRT/TV Display Start Address Register 1
 105         {0x0064,0x00},  // CRT/TV Display Start Address Register 2
 106         {0x0066,0x40},  // CRT/TV Memory Address Offset Register 0
 107         {0x0067,0x01},  // CRT/TV Memory Address Offset Register 1
 108         {0x0068,0x00},  // CRT/TV Pixel Panning Register
 109         {0x006A,0x00},  // CRT/TV Display FIFO High Threshold Control Register
 110         {0x006B,0x00},  // CRT/TV Display FIFO Low Threshold Control Register
 111         {0x0070,0x00},  // LCD Ink/Cursor Control Register
 112         {0x0071,0x01},  // LCD Ink/Cursor Start Address Register
 113         {0x0072,0x00},  // LCD Cursor X Position Register 0
 114         {0x0073,0x00},  // LCD Cursor X Position Register 1
 115         {0x0074,0x00},  // LCD Cursor Y Position Register 0
 116         {0x0075,0x00},  // LCD Cursor Y Position Register 1
 117         {0x0076,0x00},  // LCD Ink/Cursor Blue Color 0 Register
 118         {0x0077,0x00},  // LCD Ink/Cursor Green Color 0 Register
 119         {0x0078,0x00},  // LCD Ink/Cursor Red Color 0 Register
 120         {0x007A,0x1F},  // LCD Ink/Cursor Blue Color 1 Register
 121         {0x007B,0x3F},  // LCD Ink/Cursor Green Color 1 Register
 122         {0x007C,0x1F},  // LCD Ink/Cursor Red Color 1 Register
 123         {0x007E,0x00},  // LCD Ink/Cursor FIFO Threshold Register
 124         {0x0080,0x00},  // CRT/TV Ink/Cursor Control Register
 125         {0x0081,0x01},  // CRT/TV Ink/Cursor Start Address Register
 126         {0x0082,0x00},  // CRT/TV Cursor X Position Register 0
 127         {0x0083,0x00},  // CRT/TV Cursor X Position Register 1
 128         {0x0084,0x00},  // CRT/TV Cursor Y Position Register 0
 129         {0x0085,0x00},  // CRT/TV Cursor Y Position Register 1
 130         {0x0086,0x00},  // CRT/TV Ink/Cursor Blue Color 0 Register
 131         {0x0087,0x00},  // CRT/TV Ink/Cursor Green Color 0 Register
 132         {0x0088,0x00},  // CRT/TV Ink/Cursor Red Color 0 Register
 133         {0x008A,0x1F},  // CRT/TV Ink/Cursor Blue Color 1 Register
 134         {0x008B,0x3F},  // CRT/TV Ink/Cursor Green Color 1 Register
 135         {0x008C,0x1F},  // CRT/TV Ink/Cursor Red Color 1 Register
 136         {0x008E,0x00},  // CRT/TV Ink/Cursor FIFO Threshold Register
 137         {0x0100,0x00},  // BitBlt Control Register 0
 138         {0x0101,0x00},  // BitBlt Control Register 1
 139         {0x0102,0x00},  // BitBlt ROP Code/Color Expansion Register
 140         {0x0103,0x00},  // BitBlt Operation Register
 141         {0x0104,0x00},  // BitBlt Source Start Address Register 0
 142         {0x0105,0x00},  // BitBlt Source Start Address Register 1
 143         {0x0106,0x00},  // BitBlt Source Start Address Register 2
 144         {0x0108,0x00},  // BitBlt Destination Start Address Register 0
 145         {0x0109,0x00},  // BitBlt Destination Start Address Register 1
 146         {0x010A,0x00},  // BitBlt Destination Start Address Register 2
 147         {0x010C,0x00},  // BitBlt Memory Address Offset Register 0
 148         {0x010D,0x00},  // BitBlt Memory Address Offset Register 1
 149         {0x0110,0x00},  // BitBlt Width Register 0
 150         {0x0111,0x00},  // BitBlt Width Register 1
 151         {0x0112,0x00},  // BitBlt Height Register 0
 152         {0x0113,0x00},  // BitBlt Height Register 1
 153         {0x0114,0x00},  // BitBlt Background Color Register 0
 154         {0x0115,0x00},  // BitBlt Background Color Register 1
 155         {0x0118,0x00},  // BitBlt Foreground Color Register 0
 156         {0x0119,0x00},  // BitBlt Foreground Color Register 1
 157         {0x01E0,0x00},  // Look-Up Table Mode Register
 158         {0x01E2,0x00},  // Look-Up Table Address Register
 159         /* not sure, wouldn't like to mess with the driver */
 160         {0x01E4,0x00},  // Look-Up Table Data Register
 161         /* jornada doc says 0x00, but I trust the driver */
 162         {0x01F0,0x10},  // Power Save Configuration Register
 163         {0x01F1,0x00},  // Power Save Status Register
 164         {0x01F4,0x00},  // CPU-to-Memory Access Watchdog Timer Register
 165         {0x01FC,0x01},  // Display Mode Register(0x01:LCD, 0x02:CRT, 0x03:LCD&CRT)
 166 };
 167
 168 static struct s1d13xxxfb_pdata s1d13xxxfb_data = {
 169         .initregs               = s1d13xxxfb_initregs,
 170         .initregssize           = ARRAY_SIZE(s1d13xxxfb_initregs),
 171         .platform_init_video    = NULL
 172 };
 173
 174 static struct resource s1d13xxxfb_resources[] = {
 175         [0] = {
 176                 .start  = EPSONFBSTART,
 177                 .end    = EPSONFBSTART + EPSONFBLEN,
 178                 .flags  = IORESOURCE_MEM,
 179         },
 180         [1] = {
 181                 .start  = EPSONREGSTART,
 182                 .end    = EPSONREGSTART + EPSONREGLEN,
 183                 .flags  = IORESOURCE_MEM,
 184         }
 185 };
 186
 187 static struct platform_device s1d13xxxfb_device = {
 188         .name           = S1D_DEVICENAME,
 189         .id             = 0,
 190         .dev            = {
 191                 .platform_data  = &s1d13xxxfb_data,
 192         },
 193         .num_resources  = ARRAY_SIZE(s1d13xxxfb_resources),
 194         .resource       = s1d13xxxfb_resources,
 195 };
 196
 197 static struct resource sa1111_resources[] = {
 198         [0] = {
 199                 .start          = SA1111REGSTART,
 200                 .end            = SA1111REGSTART + SA1111REGLEN,
 201                 .flags          = IORESOURCE_MEM,
 202         },
 203         [1] = {
 204                 .start          = IRQ_GPIO1,
 205                 .end            = IRQ_GPIO1,
 206                 .flags          = IORESOURCE_IRQ,
 207         },
 208 };
 209
 210 static u64 sa1111_dmamask = 0xffffffffUL;
 211
 212 static struct platform_device sa1111_device = {
 213         .name           = "sa1111",
 214         .id             = 0,
 215         .dev            = {
 216                 .dma_mask = &sa1111_dmamask,
 217                 .coherent_dma_mask = 0xffffffff,
 218         },
 219         .num_resources  = ARRAY_SIZE(sa1111_resources),
 220         .resource       = sa1111_resources,
 221 };
 222
 223 static struct platform_device jornada720_mcu_device = {
 224         .name           = "jornada720_mcu",
 225         .id             = -1,
 226 };
 227
 228 static struct platform_device *devices[] __initdata = {
 229         &sa1111_device,
 230         &jornada720_mcu_device,
 231         &s1d13xxxfb_device,
 232 };
 233
 234 /* a stub for now, we theoretically cannot suspend without a flashboard */
 235 int pm_suspend(suspend_state_t state)
 236 {
 237         return -1;
 238 }
 239
 240 static int __init jornada720_init(void)
 241 {
 242         int ret = -ENODEV;
 243
 244         if (machine_is_jornada720()) {
 245                 GPDR |= GPIO_GPIO20;
 246                 /* oscillator setup (line 116 of HP's doc) */
 247                 TUCR = TUCR_VAL;
 248                 /* resetting SA1111 (line 118 of HP's doc) */
 249                 GPSR = GPIO_GPIO20;
 250                 udelay(1);
 251                 GPCR = GPIO_GPIO20;
 252                 udelay(1);
 253                 GPSR = GPIO_GPIO20;
 254                 udelay(20);
 255
 256                 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 257         }
 258         return ret;
 259 }
 260
 261 arch_initcall(jornada720_init);
 262
 263 static struct map_desc jornada720_io_desc[] __initdata = {
 264         {       /* Epson registers */
 265                 .virtual        = 0xf0000000,
 266                 .pfn            = __phys_to_pfn(EPSONREGSTART),
 267                 .length         = EPSONREGLEN,
 268                 .type           = MT_DEVICE
 269         }, {    /* Epson frame buffer */
 270                 .virtual        = 0xf1000000,
 271                 .pfn            = __phys_to_pfn(EPSONFBSTART),
 272                 .length         = EPSONFBLEN,
 273                 .type           = MT_DEVICE
 274         }, {    /* SA-1111 */
 275                 .virtual        = 0xf4000000,
 276                 .pfn            = __phys_to_pfn(SA1111REGSTART),
 277                 .length         = SA1111REGLEN,
 278                 .type           = MT_DEVICE
 279         }
 280 };
 281
 282 static void __init jornada720_map_io(void)
 283 {
 284         sa1100_map_io();
 285         iotable_init(jornada720_io_desc, ARRAY_SIZE(jornada720_io_desc));
 286
 287         sa1100_register_uart(0, 3);
 288         sa1100_register_uart(1, 1);
 289 }
 290
 291 static struct mtd_partition jornada720_partitions[] = {
 292         {
 293                 .name           = "JORNADA720 boot firmware",
 294                 .size           = 0x00040000,
 295                 .offset         = 0,
 296                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
 297         }, {
 298                 .name           = "JORNADA720 kernel",
 299                 .size           = 0x000c0000,
 300                 .offset         = 0x00040000,
 301         }, {
 302                 .name           = "JORNADA720 params",
 303                 .size           = 0x00040000,
 304                 .offset         = 0x00100000,
 305         }, {
 306                 .name           = "JORNADA720 initrd",
 307                 .size           = 0x00100000,
 308                 .offset         = 0x00140000,
 309         }, {
 310                 .name           = "JORNADA720 root cramfs",
 311                 .size           = 0x00300000,
 312                 .offset         = 0x00240000,
 313         }, {
 314                 .name           = "JORNADA720 usr cramfs",
 315                 .size           = 0x00800000,
 316                 .offset         = 0x00540000,
 317         }, {
 318                 .name           = "JORNADA720 usr local",
 319                 .size           = 0, /* will expand to the end of the flash */
 320                 .offset         = 0x00d00000,
 321         }
 322 };
 323
 324 static void jornada720_set_vpp(int vpp)
 325 {
 326         if (vpp)
 327                 /* enabling flash write (line 470 of HP's doc) */
 328                 PPSR |= PPC_LDD7;
 329         else
 330                 /* disabling flash write (line 470 of HP's doc) */
 331                 PPSR &= ~PPC_LDD7;
 332         PPDR |= PPC_LDD7;
 333 }
 334
 335 static struct flash_platform_data jornada720_flash_data = {
 336         .map_name       = "cfi_probe",
 337         .set_vpp        = jornada720_set_vpp,
 338         .parts          = jornada720_partitions,
 339         .nr_parts       = ARRAY_SIZE(jornada720_partitions),
 340 };
 341
 342 static struct resource jornada720_flash_resource = {
 343         .start          = SA1100_CS0_PHYS,
 344         .end            = SA1100_CS0_PHYS + SZ_32M - 1,
 345         .flags          = IORESOURCE_MEM,
 346 };
 347
 348 static void __init jornada720_mach_init(void)
 349 {
 350         sa11x0_set_flash_data(&jornada720_flash_data, &jornada720_flash_resource, 1);
 351 }
 352
 353 MACHINE_START(JORNADA720, "HP Jornada 720")
 354         /* Maintainer: Michael Gernoth <michael@gernoth.net> */
 355         .phys_io        = 0x80000000,
 356         .io_pg_offst    = ((0xf8000000) >> 18) & 0xfffc,
 357         .boot_params    = 0xc0000100,
 358         .map_io         = jornada720_map_io,
 359         .init_irq       = sa1100_init_irq,
 360         .timer          = &sa1100_timer,
 361         .init_machine   = jornada720_mach_init,
 362 MACHINE_END