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) 2007 Kristoffer Ericson <Kristoffer.Ericson@gmail.com>
   7  * Copyright (C) 2006 Filip Zyzniewski <filip.zyzniewski@tefnet.pl>
   8  *  Copyright (C) 2005 Michael Gernoth <michael@gernoth.net>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14  */
  15
  16 #include <linux/init.h>
  17 #include <linux/kernel.h>
  18 #include <linux/tty.h>
  19 #include <linux/delay.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/ioport.h>
  22 #include <linux/mtd/mtd.h>
  23 #include <linux/mtd/partitions.h>
  24 #include <video/s1d13xxxfb.h>
  25
  26 #include <asm/hardware.h>
  27 #include <asm/hardware/sa1111.h>
  28 #include <asm/irq.h>
  29 #include <asm/mach-types.h>
  30 #include <asm/setup.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/flash.h>
  33 #include <asm/mach/map.h>
  34 #include <asm/mach/serial_sa1100.h>
  35
  36 #include "generic.h"
  37
  38 /*
  39  * HP Documentation referred in this file:
  40  * http://www.jlime.com/downloads/development/docs/jornada7xx/jornada720.txt
  41  */
  42
  43 /* line 110 of HP's doc */
  44 #define TUCR_VAL        0x20000400
  45
  46 /* memory space (line 52 of HP's doc) */
  47 #define SA1111REGSTART  0x40000000
  48 #define SA1111REGLEN    0x00001fff
  49 #define EPSONREGSTART   0x48000000
  50 #define EPSONREGLEN     0x00100000
  51 #define EPSONFBSTART    0x48200000
  52 /* 512kB framebuffer */
  53 #define EPSONFBLEN      512*1024
  54
  55 static struct s1d13xxxfb_regval s1d13xxxfb_initregs[] = {
  56         /* line 344 of HP's doc */
  57         {0x0001,0x00},  // Miscellaneous Register
  58         {0x01FC,0x00},  // Display Mode Register
  59         {0x0004,0x00},  // General IO Pins Configuration Register 0
  60         {0x0005,0x00},  // General IO Pins Configuration Register 1
  61         {0x0008,0x00},  // General IO Pins Control Register 0
  62         {0x0009,0x00},  // General IO Pins Control Register 1
  63         {0x0010,0x01},  // Memory Clock Configuration Register
  64         {0x0014,0x11},  // LCD Pixel Clock Configuration Register
  65         {0x0018,0x01},  // CRT/TV Pixel Clock Configuration Register
  66         {0x001C,0x01},  // MediaPlug Clock Configuration Register
  67         {0x001E,0x01},  // CPU To Memory Wait State Select Register
  68         {0x0020,0x00},  // Memory Configuration Register
  69         {0x0021,0x45},  // DRAM Refresh Rate Register
  70         {0x002A,0x01},  // DRAM Timings Control Register 0
  71         {0x002B,0x03},  // DRAM Timings Control Register 1
  72         {0x0030,0x1c},  // Panel Type Register
  73         {0x0031,0x00},  // MOD Rate Register
  74         {0x0032,0x4F},  // LCD Horizontal Display Width Register
  75         {0x0034,0x07},  // LCD Horizontal Non-Display Period Register
  76         {0x0035,0x01},  // TFT FPLINE Start Position Register
  77         {0x0036,0x0B},  // TFT FPLINE Pulse Width Register
  78         {0x0038,0xEF},  // LCD Vertical Display Height Register 0
  79         {0x0039,0x00},  // LCD Vertical Display Height Register 1
  80         {0x003A,0x13},  // LCD Vertical Non-Display Period Register
  81         {0x003B,0x0B},  // TFT FPFRAME Start Position Register
  82         {0x003C,0x01},  // TFT FPFRAME Pulse Width Register
  83         {0x0040,0x05},  // LCD Display Mode Register (2:4bpp,3:8bpp,5:16bpp)
  84         {0x0041,0x00},  // LCD Miscellaneous Register
  85         {0x0042,0x00},  // LCD Display Start Address Register 0
  86         {0x0043,0x00},  // LCD Display Start Address Register 1
  87         {0x0044,0x00},  // LCD Display Start Address Register 2
  88         {0x0046,0x80},  // LCD Memory Address Offset Register 0
  89         {0x0047,0x02},  // LCD Memory Address Offset Register 1
  90         {0x0048,0x00},  // LCD Pixel Panning Register
  91         {0x004A,0x00},  // LCD Display FIFO High Threshold Control Register
  92         {0x004B,0x00},  // LCD Display FIFO Low Threshold Control Register
  93         {0x0050,0x4F},  // CRT/TV Horizontal Display Width Register
  94         {0x0052,0x13},  // CRT/TV Horizontal Non-Display Period Register
  95         {0x0053,0x01},  // CRT/TV HRTC Start Position Register
  96         {0x0054,0x0B},  // CRT/TV HRTC Pulse Width Register
  97         {0x0056,0xDF},  // CRT/TV Vertical Display Height Register 0
  98         {0x0057,0x01},  // CRT/TV Vertical Display Height Register 1
  99         {0x0058,0x2B},  // CRT/TV Vertical Non-Display Period Register
 100         {0x0059,0x09},  // CRT/TV VRTC Start Position Register
 101         {0x005A,0x01},  // CRT/TV VRTC Pulse Width Register
 102         {0x005B,0x10},  // TV Output Control Register
 103         {0x0060,0x03},  // CRT/TV Display Mode Register (2:4bpp,3:8bpp,5:16bpp)
 104         {0x0062,0x00},  // CRT/TV Display Start Address Register 0
 105         {0x0063,0x00},  // CRT/TV Display Start Address Register 1
 106         {0x0064,0x00},  // CRT/TV Display Start Address Register 2
 107         {0x0066,0x40},  // CRT/TV Memory Address Offset Register 0
 108         {0x0067,0x01},  // CRT/TV Memory Address Offset Register 1
 109         {0x0068,0x00},  // CRT/TV Pixel Panning Register
 110         {0x006A,0x00},  // CRT/TV Display FIFO High Threshold Control Register
 111         {0x006B,0x00},  // CRT/TV Display FIFO Low Threshold Control Register
 112         {0x0070,0x00},  // LCD Ink/Cursor Control Register
 113         {0x0071,0x01},  // LCD Ink/Cursor Start Address Register
 114         {0x0072,0x00},  // LCD Cursor X Position Register 0
 115         {0x0073,0x00},  // LCD Cursor X Position Register 1
 116         {0x0074,0x00},  // LCD Cursor Y Position Register 0
 117         {0x0075,0x00},  // LCD Cursor Y Position Register 1
 118         {0x0076,0x00},  // LCD Ink/Cursor Blue Color 0 Register
 119         {0x0077,0x00},  // LCD Ink/Cursor Green Color 0 Register
 120         {0x0078,0x00},  // LCD Ink/Cursor Red Color 0 Register
 121         {0x007A,0x1F},  // LCD Ink/Cursor Blue Color 1 Register
 122         {0x007B,0x3F},  // LCD Ink/Cursor Green Color 1 Register
 123         {0x007C,0x1F},  // LCD Ink/Cursor Red Color 1 Register
 124         {0x007E,0x00},  // LCD Ink/Cursor FIFO Threshold Register
 125         {0x0080,0x00},  // CRT/TV Ink/Cursor Control Register
 126         {0x0081,0x01},  // CRT/TV Ink/Cursor Start Address Register
 127         {0x0082,0x00},  // CRT/TV Cursor X Position Register 0
 128         {0x0083,0x00},  // CRT/TV Cursor X Position Register 1
 129         {0x0084,0x00},  // CRT/TV Cursor Y Position Register 0
 130         {0x0085,0x00},  // CRT/TV Cursor Y Position Register 1
 131         {0x0086,0x00},  // CRT/TV Ink/Cursor Blue Color 0 Register
 132         {0x0087,0x00},  // CRT/TV Ink/Cursor Green Color 0 Register
 133         {0x0088,0x00},  // CRT/TV Ink/Cursor Red Color 0 Register
 134         {0x008A,0x1F},  // CRT/TV Ink/Cursor Blue Color 1 Register
 135         {0x008B,0x3F},  // CRT/TV Ink/Cursor Green Color 1 Register
 136         {0x008C,0x1F},  // CRT/TV Ink/Cursor Red Color 1 Register
 137         {0x008E,0x00},  // CRT/TV Ink/Cursor FIFO Threshold Register
 138         {0x0100,0x00},  // BitBlt Control Register 0
 139         {0x0101,0x00},  // BitBlt Control Register 1
 140         {0x0102,0x00},  // BitBlt ROP Code/Color Expansion Register
 141         {0x0103,0x00},  // BitBlt Operation Register
 142         {0x0104,0x00},  // BitBlt Source Start Address Register 0
 143         {0x0105,0x00},  // BitBlt Source Start Address Register 1
 144         {0x0106,0x00},  // BitBlt Source Start Address Register 2
 145         {0x0108,0x00},  // BitBlt Destination Start Address Register 0
 146         {0x0109,0x00},  // BitBlt Destination Start Address Register 1
 147         {0x010A,0x00},  // BitBlt Destination Start Address Register 2
 148         {0x010C,0x00},  // BitBlt Memory Address Offset Register 0
 149         {0x010D,0x00},  // BitBlt Memory Address Offset Register 1
 150         {0x0110,0x00},  // BitBlt Width Register 0
 151         {0x0111,0x00},  // BitBlt Width Register 1
 152         {0x0112,0x00},  // BitBlt Height Register 0
 153         {0x0113,0x00},  // BitBlt Height Register 1
 154         {0x0114,0x00},  // BitBlt Background Color Register 0
 155         {0x0115,0x00},  // BitBlt Background Color Register 1
 156         {0x0118,0x00},  // BitBlt Foreground Color Register 0
 157         {0x0119,0x00},  // BitBlt Foreground Color Register 1
 158         {0x01E0,0x00},  // Look-Up Table Mode Register
 159         {0x01E2,0x00},  // Look-Up Table Address Register
 160         /* not sure, wouldn't like to mess with the driver */
 161         {0x01E4,0x00},  // Look-Up Table Data Register
 162         /* jornada doc says 0x00, but I trust the driver */
 163         {0x01F0,0x10},  // Power Save Configuration Register
 164         {0x01F1,0x00},  // Power Save Status Register
 165         {0x01F4,0x00},  // CPU-to-Memory Access Watchdog Timer Register
 166         {0x01FC,0x01},  // Display Mode Register(0x01:LCD, 0x02:CRT, 0x03:LCD&CRT)
 167 };
 168
 169 static struct s1d13xxxfb_pdata s1d13xxxfb_data = {
 170         .initregs               = s1d13xxxfb_initregs,
 171         .initregssize           = ARRAY_SIZE(s1d13xxxfb_initregs),
 172         .platform_init_video    = NULL
 173 };
 174
 175 static struct resource s1d13xxxfb_resources[] = {
 176         [0] = {
 177                 .start  = EPSONFBSTART,
 178                 .end    = EPSONFBSTART + EPSONFBLEN,
 179                 .flags  = IORESOURCE_MEM,
 180         },
 181         [1] = {
 182                 .start  = EPSONREGSTART,
 183                 .end    = EPSONREGSTART + EPSONREGLEN,
 184                 .flags  = IORESOURCE_MEM,
 185         }
 186 };
 187
 188 static struct platform_device s1d13xxxfb_device = {
 189         .name           = S1D_DEVICENAME,
 190         .id             = 0,
 191         .dev            = {
 192                 .platform_data  = &s1d13xxxfb_data,
 193         },
 194         .num_resources  = ARRAY_SIZE(s1d13xxxfb_resources),
 195         .resource       = s1d13xxxfb_resources,
 196 };
 197
 198 static struct resource sa1111_resources[] = {
 199         [0] = {
 200                 .start          = SA1111REGSTART,
 201                 .end            = SA1111REGSTART + SA1111REGLEN,
 202                 .flags          = IORESOURCE_MEM,
 203         },
 204         [1] = {
 205                 .start          = IRQ_GPIO1,
 206                 .end            = IRQ_GPIO1,
 207                 .flags          = IORESOURCE_IRQ,
 208         },
 209 };
 210
 211 static u64 sa1111_dmamask = 0xffffffffUL;
 212
 213 static struct platform_device sa1111_device = {
 214         .name           = "sa1111",
 215         .id             = 0,
 216         .dev            = {
 217                 .dma_mask = &sa1111_dmamask,
 218                 .coherent_dma_mask = 0xffffffff,
 219         },
 220         .num_resources  = ARRAY_SIZE(sa1111_resources),
 221         .resource       = sa1111_resources,
 222 };
 223
 224 static struct platform_device jornada_ssp_device = {
 225         .name           = "jornada_ssp",
 226         .id             = -1,
 227 };
 228
 229 static struct platform_device *devices[] __initdata = {
 230         &sa1111_device,
 231 #ifdef CONFIG_SA1100_JORNADA720_SSP
 232         &jornada_ssp_device,
 233 #endif
 234         &s1d13xxxfb_device,
 235 };
 236
 237 static int __init jornada720_init(void)
 238 {
 239         int ret = -ENODEV;
 240
 241         if (machine_is_jornada720()) {
 242                 /* we want to use gpio20 as input to drive the clock of our uart 3 */
 243                 GPDR |= GPIO_GPIO20;    /* Clear gpio20 pin as input */
 244                 TUCR = TUCR_VAL;
 245                 GPSR = GPIO_GPIO20;     /* start gpio20 pin */
 246                 udelay(1);
 247                 GPCR = GPIO_GPIO20;     /* stop gpio20 */
 248                 udelay(1);
 249                 GPSR = GPIO_GPIO20;     /* restart gpio20 */
 250                 udelay(20);             /* give it some time to restart */
 251
 252                 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 253         }
 254
 255         return ret;
 256 }
 257
 258 arch_initcall(jornada720_init);
 259
 260 static struct map_desc jornada720_io_desc[] __initdata = {
 261         {       /* Epson registers */
 262                 .virtual        = 0xf0000000,
 263                 .pfn            = __phys_to_pfn(EPSONREGSTART),
 264                 .length         = EPSONREGLEN,
 265                 .type           = MT_DEVICE
 266         }, {    /* Epson frame buffer */
 267                 .virtual        = 0xf1000000,
 268                 .pfn            = __phys_to_pfn(EPSONFBSTART),
 269                 .length         = EPSONFBLEN,
 270                 .type           = MT_DEVICE
 271         }, {    /* SA-1111 */
 272                 .virtual        = 0xf4000000,
 273                 .pfn            = __phys_to_pfn(SA1111REGSTART),
 274                 .length         = SA1111REGLEN,
 275                 .type           = MT_DEVICE
 276         }
 277 };
 278
 279 static void __init jornada720_map_io(void)
 280 {
 281         sa1100_map_io();
 282         iotable_init(jornada720_io_desc, ARRAY_SIZE(jornada720_io_desc));
 283
 284         sa1100_register_uart(0, 3);
 285         sa1100_register_uart(1, 1);
 286 }
 287
 288 static struct mtd_partition jornada720_partitions[] = {
 289         {
 290                 .name           = "JORNADA720 boot firmware",
 291                 .size           = 0x00040000,
 292                 .offset         = 0,
 293                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
 294         }, {
 295                 .name           = "JORNADA720 kernel",
 296                 .size           = 0x000c0000,
 297                 .offset         = 0x00040000,
 298         }, {
 299                 .name           = "JORNADA720 params",
 300                 .size           = 0x00040000,
 301                 .offset         = 0x00100000,
 302         }, {
 303                 .name           = "JORNADA720 initrd",
 304                 .size           = 0x00100000,
 305                 .offset         = 0x00140000,
 306         }, {
 307                 .name           = "JORNADA720 root cramfs",
 308                 .size           = 0x00300000,
 309                 .offset         = 0x00240000,
 310         }, {
 311                 .name           = "JORNADA720 usr cramfs",
 312                 .size           = 0x00800000,
 313                 .offset         = 0x00540000,
 314         }, {
 315                 .name           = "JORNADA720 usr local",
 316                 .size           = 0, /* will expand to the end of the flash */
 317                 .offset         = 0x00d00000,
 318         }
 319 };
 320
 321 static void jornada720_set_vpp(int vpp)
 322 {
 323         if (vpp)
 324                 /* enabling flash write (line 470 of HP's doc) */
 325                 PPSR |= PPC_LDD7;
 326         else
 327                 /* disabling flash write (line 470 of HP's doc) */
 328                 PPSR &= ~PPC_LDD7;
 329         PPDR |= PPC_LDD7;
 330 }
 331
 332 static struct flash_platform_data jornada720_flash_data = {
 333         .map_name       = "cfi_probe",
 334         .set_vpp        = jornada720_set_vpp,
 335         .parts          = jornada720_partitions,
 336         .nr_parts       = ARRAY_SIZE(jornada720_partitions),
 337 };
 338
 339 static struct resource jornada720_flash_resource = {
 340         .start          = SA1100_CS0_PHYS,
 341         .end            = SA1100_CS0_PHYS + SZ_32M - 1,
 342         .flags          = IORESOURCE_MEM,
 343 };
 344
 345 static void __init jornada720_mach_init(void)
 346 {
 347         sa11x0_set_flash_data(&jornada720_flash_data, &jornada720_flash_resource, 1);
 348 }
 349
 350 MACHINE_START(JORNADA720, "HP Jornada 720")
 351         /* Maintainer: Kristoffer Ericson <Kristoffer.Ericson@gmail.com> */
 352         .phys_io        = 0x80000000,
 353         .io_pg_offst    = ((0xf8000000) >> 18) & 0xfffc,
 354         .boot_params    = 0xc0000100,
 355         .map_io         = jornada720_map_io,
 356         .init_irq       = sa1100_init_irq,
 357         .timer          = &sa1100_timer,
 358         .init_machine   = jornada720_mach_init,
 359 MACHINE_END