arch/arm/mach-pxa/himalaya.c

   1 /*
   2  * linux/arch/arm/mach-pxa/himalaya.c
   3  *
   4  * Hardware definitions for the HTC Himalaya
   5  *
   6  * Based on 2.6.21-hh20's himalaya.c and himalaya_lcd.c
   7  *
   8  * Copyright (c) 2008 Zbynek Michl <Zbynek.Michl@seznam.cz>
   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 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/device.h>
  18 #include <linux/fb.h>
  19 #include <linux/platform_device.h>
  20
  21 #include <video/w100fb.h>
  22
  23 #include <asm/setup.h>
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26
  27 #include <mach/mfp-pxa25x.h>
  28 #include <mach/hardware.h>
  29 #include <mach/pxa-regs.h>
  30 #include <mach/pxa2xx-regs.h>
  31
  32 #include "generic.h"
  33
  34 /* ---------------------- Himalaya LCD definitions -------------------- */
  35
  36 static struct w100_gen_regs himalaya_lcd_regs = {
  37         .lcd_format =        0x00000003,
  38         .lcdd_cntl1 =        0x00000000,
  39         .lcdd_cntl2 =        0x0003ffff,
  40         .genlcd_cntl1 =      0x00fff003,
  41         .genlcd_cntl2 =      0x00000003,
  42         .genlcd_cntl3 =      0x000102aa,
  43 };
  44
  45 static struct w100_mode himalaya4_lcd_mode = {
  46         .xres           = 240,
  47         .yres           = 320,
  48         .left_margin    = 0,
  49         .right_margin   = 31,
  50         .upper_margin   = 15,
  51         .lower_margin   = 0,
  52         .crtc_ss        = 0x80150014,
  53         .crtc_ls        = 0xa0fb00f7,
  54         .crtc_gs        = 0xc0080007,
  55         .crtc_vpos_gs   = 0x00080007,
  56         .crtc_rev       = 0x0000000a,
  57         .crtc_dclk      = 0x81700030,
  58         .crtc_gclk      = 0x8015010f,
  59         .crtc_goe       = 0x00000000,
  60         .pll_freq       = 80,
  61         .pixclk_divider = 15,
  62         .pixclk_divider_rotated = 15,
  63         .pixclk_src     = CLK_SRC_PLL,
  64         .sysclk_divider = 0,
  65         .sysclk_src     = CLK_SRC_PLL,
  66 };
  67
  68 static struct w100_mode himalaya6_lcd_mode = {
  69         .xres           = 240,
  70         .yres           = 320,
  71         .left_margin    = 9,
  72         .right_margin   = 8,
  73         .upper_margin   = 5,
  74         .lower_margin   = 4,
  75         .crtc_ss        = 0x80150014,
  76         .crtc_ls        = 0xa0fb00f7,
  77         .crtc_gs        = 0xc0080007,
  78         .crtc_vpos_gs   = 0x00080007,
  79         .crtc_rev       = 0x0000000a,
  80         .crtc_dclk      = 0xa1700030,
  81         .crtc_gclk      = 0x8015010f,
  82         .crtc_goe       = 0x00000000,
  83         .pll_freq       = 95,
  84         .pixclk_divider = 0xb,
  85         .pixclk_divider_rotated = 4,
  86         .pixclk_src     = CLK_SRC_PLL,
  87         .sysclk_divider = 1,
  88         .sysclk_src     = CLK_SRC_PLL,
  89 };
  90
  91 static struct w100_gpio_regs himalaya_w100_gpio_info = {
  92         .init_data1 = 0xffff0000,       /* GPIO_DATA  */
  93         .gpio_dir1  = 0x00000000,       /* GPIO_CNTL1 */
  94         .gpio_oe1   = 0x003c0000,       /* GPIO_CNTL2 */
  95         .init_data2 = 0x00000000,       /* GPIO_DATA2 */
  96         .gpio_dir2  = 0x00000000,       /* GPIO_CNTL3 */
  97         .gpio_oe2   = 0x00000000,       /* GPIO_CNTL4 */
  98 };
  99
 100 static struct w100fb_mach_info himalaya_fb_info = {
 101         .num_modes  = 1,
 102         .regs       = &himalaya_lcd_regs,
 103         .gpio       = &himalaya_w100_gpio_info,
 104         .xtal_freq = 16000000,
 105 };
 106
 107 static struct resource himalaya_fb_resources[] = {
 108         [0] = {
 109                 .start  = 0x08000000,
 110                 .end    = 0x08ffffff,
 111                 .flags  = IORESOURCE_MEM,
 112         },
 113 };
 114
 115 static struct platform_device himalaya_fb_device = {
 116         .name           = "w100fb",
 117         .id             = -1,
 118         .dev            = {
 119                 .platform_data  = &himalaya_fb_info,
 120         },
 121         .num_resources  = ARRAY_SIZE(himalaya_fb_resources),
 122         .resource       = himalaya_fb_resources,
 123 };
 124
 125 /* ----------------------------------------------------------------------- */
 126
 127 static struct platform_device *devices[] __initdata = {
 128         &himalaya_fb_device,
 129 };
 130
 131 static void __init himalaya_lcd_init(void)
 132 {
 133         int himalaya_boardid;
 134
 135         himalaya_boardid = 0x4; /* hardcoded (detection needs ASIC3 functions) */
 136         printk(KERN_INFO "himalaya LCD Driver init. boardid=%d\n",
 137                 himalaya_boardid);
 138
 139         switch (himalaya_boardid) {
 140         case 0x4:
 141                 himalaya_fb_info.modelist = &himalaya4_lcd_mode;
 142         break;
 143         case 0x6:
 144                 himalaya_fb_info.modelist = &himalaya6_lcd_mode;
 145         break;
 146         default:
 147                 printk(KERN_INFO "himalaya lcd_init: unknown boardid=%d. Using 0x4\n",
 148                         himalaya_boardid);
 149                 himalaya_fb_info.modelist = &himalaya4_lcd_mode;
 150         }
 151 }
 152
 153 static void __init himalaya_init(void)
 154 {
 155         himalaya_lcd_init();
 156         platform_add_devices(devices, ARRAY_SIZE(devices));
 157 }
 158
 159
 160 MACHINE_START(HIMALAYA, "HTC Himalaya")
 161         .phys_io = 0x40000000,
 162         .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
 163         .boot_params = 0xa0000100,
 164         .map_io = pxa_map_io,
 165         .init_irq = pxa25x_init_irq,
 166         .init_machine = himalaya_init,
 167         .timer = &pxa_timer,
 168 MACHINE_END