arch/arm/mach-pxa/eseries/e740_lcd.c

   1 /* e740_lcd.c
   2  *
   3  * (c) Ian Molton 2005
   4  *
   5  * This file contains the definitions for the LCD timings and functions
   6  * to control the LCD power / frontlighting via the w100fb driver.
   7  *
   8  */
   9
  10 #include <linux/module.h>
  11 #include <linux/init.h>
  12 #include <linux/kernel.h>
  13 #include <linux/tty.h>
  14 #include <linux/sched.h>
  15 #include <linux/delay.h>
  16 #include  <linux/device.h>
  17 #include <linux/pm.h>
  18 #include <linux/lcd.h>
  19 #include <linux/backlight.h>
  20 #include <linux/fb.h>
  21 #include <linux/err.h>
  22
  23
  24 #include <asm/mach-types.h>
  25 #include <asm/hardware.h>
  26 #include <asm/setup.h>
  27
  28 #include <asm/mach/arch.h>
  29 #include <asm/arch/pxa-regs.h>
  30 #include <asm/arch/eseries-gpio.h>
  31 #include <linux/platform_device.h>
  32
  33 #include <video/w100fb.h>
  34
  35 /*
  36 This sequence brings up display on the e740
  37 mmDISP_DB_BUF_CNTL 0x00000078           0x04d8
  38 mmCLK_PIN_CNTL     0x0003f              0x0080
  39 mmPLL_REF_FB_DIV   0x50500d04           0x0084
  40 mmPLL_CNTL         0x4b000200           0x0088
  41 mmSCLK_CNTL        0x00000b11           0x008C
  42 mmPCLK_CNTL        0x00000000           0x0090
  43 mmCLK_TEST_CNTL    0x00000000           0x0094
  44 mmPWRMGT_CNTL      0x00000004           0x0098
  45 mmMC_FB_LOCATION   0x15ff1000           0x0188
  46 mmLCD_FORMAT       0x00008023           0x0410
  47 mmGRAPHIC_CTRL     0x03cf1c06           0x0414
  48 mmGRAPHIC_OFFSET   0x00100000           0x0418
  49 mmGRAPHIC_PITCH    0x000001e0           0x041C
  50 mmCRTC_TOTAL       0x01510120           0x0420
  51 mmACTIVE_H_DISP    0x01040014           0x0424
  52 mmACTIVE_V_DISP    0x01490009           0x0428
  53 mmGRAPHIC_H_DISP   0x01040014           0x042C
  54 mmGRAPHIC_V_DISP   0x01490009           0x0430
  55 mmCRTC_SS          0x80140013           0x048C
  56 mmCRTC_LS          0x81150110           0x0490
  57 mmCRTC_REV         0x0040010a           0x0494
  58 mmCRTC_DCLK        0xa906000a           0x049C
  59 mmCRTC_GS          0x80050005           0x04A0
  60 mmCRTC_VPOS_GS     0x000a0009           0x04A4
  61 mmCRTC_GCLK        0x80050108           0x04A8
  62 mmCRTC_GOE         0x80050108           0x04AC
  63 mmCRTC_FRAME       0x00000000           0x04B0
  64 mmCRTC_FRAME_VPOS  0x00000000           0x04B4
  65 mmGPIO_DATA        0x21bd21bf           0x04B8
  66 mmGPIO_CNTL1       0xffffff00           0x04BC
  67 mmGPIO_CNTL2       0x03c00643           0x04C0
  68 mmLCDD_CNTL1       0x00000000           0x04C4
  69 mmLCDD_CNTL2       0x0003ffff           0x04C8
  70 mmGENLCD_CNTL1     0x00fff003           0x04CC
  71 mmGENLCD_CNTL2     0x00000003           0x04D0
  72 mmCRTC_DEFAULT_COUNT   0x00000000               0x04E0
  73 mmLCD_BACKGROUND_COLOR 0x0000ff00               0x04E4
  74 mmCRTC_PS1_ACTIVE      0x41060010               0x04F0
  75 mmGENLCD_CNTL3         0x000143aa               0x0524
  76 mmGPIO_DATA2           0xff3fff3f               0x0528
  77 mmGPIO_CNTL3           0xffff0000               0x052C
  78 mmGPIO_CNTL4           0x000000ff               0x0530
  79 mmDISP_DEBUG2          0x00800000               0x0538
  80 .long 0x0c011004  == 0x00100000   @ enable accel?
  81 mmDISP_DB_BUF_CNTL 0x0000007b
  82
  83 devmem2 0x0c0104d8 w 0x00000078
  84 devmem2 0x0c010080 w 0x0000003f
  85 devmem2 0x0c010084 w 0x50500d04
  86 devmem2 0x0c010088 w 0x4b000200
  87 devmem2 0x0c01008C w 0x00000b11
  88 devmem2 0x0c010090 w 0x00000000
  89 devmem2 0x0c010094 w 0x00000000
  90 devmem2 0x0c010098 w 0x00000004
  91 devmem2 0x0c010188 w 0x15ff1000
  92 devmem2 0x0c010410 w 0x00008023
  93 devmem2 0x0c010414 w 0x03cf1c06
  94 devmem2 0x0c010418 w 0x00100000
  95 devmem2 0x0c01041C w 0x000001e0
  96 devmem2 0x0c010420 w 0x01510120
  97 devmem2 0x0c010424 w 0x01040014
  98 devmem2 0x0c010428 w 0x01490009
  99 devmem2 0x0c01042C w 0x01040014
 100 devmem2 0x0c010430 w 0x01490009
 101 devmem2 0x0c01048C w 0x80140013
 102 devmem2 0x0c010490 w 0x81150110
 103 devmem2 0x0c010494 w 0x0040010a
 104 devmem2 0x0c01049C w 0xa906000a
 105 devmem2 0x0c0104A0 w 0x80050005
 106 devmem2 0x0c0104A4 w 0x000a0009
 107 devmem2 0x0c0104A8 w 0x80050108
 108 devmem2 0x0c0104AC w 0x80050108
 109 devmem2 0x0c0104B0 w 0x00000000
 110 devmem2 0x0c0104B4 w 0x00000000
 111 devmem2 0x0c0104B8 w 0x21bd21bf
 112 devmem2 0x0c0104BC w 0xffffff00
 113 devmem2 0x0c0104C0 w 0x03c00643
 114 devmem2 0x0c0104C4 w 0x00000000
 115 devmem2 0x0c0104C8 w 0x0003ffff
 116 devmem2 0x0c0104CC w 0x00fff003
 117 devmem2 0x0c0104D0 w 0x00000003
 118 devmem2 0x0c0104E0 w 0x00000000
 119 devmem2 0x0c0104E4 w 0x0000ff00
 120 devmem2 0x0c0104F0 w 0x41060010
 121 devmem2 0x0c010524 w 0x000143aa
 122 devmem2 0x0c010528 w 0xff3fff3f
 123 devmem2 0x0c01052C w 0xffff0000
 124 devmem2 0x0c010530 w 0x000000ff
 125 devmem2 0x0c010538 w 0x00800000  # 0xc0800000
 126 devmem2 0x0c0104d8 w 0x0000007b
 127
 128 **potential** shutdown routine
 129 devmem2 0x0c010528 w 0xff3fff00
 130 devmem2 0x0c010190 w 0x7FFF8000
 131 devmem2 0x0c0101b0 w 0x00FF0000
 132 devmem2 0x0c01008c w 0x00000000
 133 devmem2 0x0c010080 w 0x000000bf
 134 devmem2 0x0c010098 w 0x00000015
 135 devmem2 0x0c010088 w 0x4b000204
 136 devmem2 0x0c010098 w 0x0000001d
 137
 138 */
 139
 140 static struct w100_gen_regs e740_lcd_regs = {
 141         .lcd_format =            0x00008023,
 142         .lcdd_cntl1 =            0x0f000000,
 143         .lcdd_cntl2 =            0x0003ffff,
 144         .genlcd_cntl1 =          0x00ffff03,
 145         .genlcd_cntl2 =          0x003c0f03,
 146         .genlcd_cntl3 =          0x000143aa,
 147 };
 148
 149 static struct w100_mode e740_lcd_mode = {
 150         .xres            = 240,
 151         .yres            = 320,
 152 //      .bpp = 16,
 153         .left_margin     = 20,
 154         .right_margin    = 28,
 155         .upper_margin    = 9,
 156         .lower_margin    = 8,
 157         .crtc_ss         = 0x80140013,
 158         .crtc_ls         = 0x81150110,
 159         .crtc_gs         = 0x80050005,
 160         .crtc_vpos_gs    = 0x000a0009,
 161         .crtc_rev        = 0x0040010a,
 162         .crtc_dclk       = 0xa906000a,
 163         .crtc_gclk       = 0x80050108,
 164         .crtc_goe        = 0x80050108,
 165         .pll_freq        = 57,
 166         .pixclk_divider         = 4,
 167         .pixclk_divider_rotated = 4,
 168         .pixclk_src     = CLK_SRC_XTAL,
 169         .sysclk_divider  = 1,
 170         .sysclk_src     = CLK_SRC_PLL,
 171         .crtc_ps1_active =       0x41060010,
 172 };
 173
 174
 175 static struct w100_gpio_regs e740_w100_gpio_info = {
 176         .init_data1 = 0x21002103,
 177         .gpio_dir1  = 0xffffdeff,
 178         .gpio_oe1   = 0x03c00643,
 179         .init_data2 = 0x003f003f,
 180         .gpio_dir2  = 0xffffffff,
 181         .gpio_oe2   = 0x000000ff,
 182 };
 183
 184 static struct w100fb_mach_info e740_fb_info = {
 185         .modelist   = &e740_lcd_mode,
 186         .num_modes  = 1,
 187         .regs       = &e740_lcd_regs,
 188         .gpio       = &e740_w100_gpio_info,
 189         .xtal_freq = 14318000,
 190         .xtal_dbl   = 1,
 191 };
 192
 193 static struct resource e740_fb_resources[] = {
 194         [0] = {
 195                 .start          = 0x0c000000,
 196                 .end            = 0x0cffffff,
 197                 .flags          = IORESOURCE_MEM,
 198         },
 199 };
 200
 201 /* ----------------------- device declarations -------------------------- */
 202
 203
 204 static struct platform_device e740_fb_device = {
 205         .name           = "w100fb",
 206         .id             = -1,
 207         .dev            = {
 208                 .platform_data  = &e740_fb_info,
 209         },
 210         .num_resources  = ARRAY_SIZE(e740_fb_resources),
 211         .resource       = e740_fb_resources,
 212 };
 213
 214
 215 static struct platform_device e740_lcd_hook_device = {
 216         .name = "e740-lcd-hook",
 217         .dev = {
 218                 .parent = &e740_fb_device.dev,
 219         },
 220         .id = -1,
 221 };
 222
 223 static int e740_lcd_init (void) {
 224         int ret;
 225
 226         if (!machine_is_e740 ())
 227                 return -ENODEV;
 228
 229         if((ret = platform_device_register(&e740_fb_device)))
 230                 return ret;
 231
 232         platform_device_register(&e740_lcd_hook_device);
 233
 234         return 0;
 235 }
 236
 237 static void e740_lcd_exit (void)
 238 {
 239         //FIXME - free the platform dev for the w100 (imageon)
 240 }
 241
 242 module_init (e740_lcd_init);
 243 module_exit (e740_lcd_exit);
 244
 245 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
 246 MODULE_DESCRIPTION("e740 lcd driver");
 247 MODULE_LICENSE("GPLv2");