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/pxa25x.h>
  28
  29 #include "generic.h"
  30
  31 /* ---------------------- Himalaya LCD definitions -------------------- */
  32
  33 static struct w100_gen_regs himalaya_lcd_regs = {
  34         .lcd_format =        0x00000003,
  35         .lcdd_cntl1 =        0x00000000,
  36         .lcdd_cntl2 =        0x0003ffff,
  37         .genlcd_cntl1 =      0x00fff003,
  38         .genlcd_cntl2 =      0x00000003,
  39         .genlcd_cntl3 =      0x000102aa,
  40 };
  41
  42 static struct w100_mode himalaya4_lcd_mode = {
  43         .xres           = 240,
  44         .yres           = 320,
  45         .left_margin    = 0,
  46         .right_margin   = 31,
  47         .upper_margin   = 15,
  48         .lower_margin   = 0,
  49         .crtc_ss        = 0x80150014,
  50         .crtc_ls        = 0xa0fb00f7,
  51         .crtc_gs        = 0xc0080007,
  52         .crtc_vpos_gs   = 0x00080007,
  53         .crtc_rev       = 0x0000000a,
  54         .crtc_dclk      = 0x81700030,
  55         .crtc_gclk      = 0x8015010f,
  56         .crtc_goe       = 0x00000000,
  57         .pll_freq       = 80,
  58         .pixclk_divider = 15,
  59         .pixclk_divider_rotated = 15,
  60         .pixclk_src     = CLK_SRC_PLL,
  61         .sysclk_divider = 0,
  62         .sysclk_src     = CLK_SRC_PLL,
  63 };
  64
  65 static struct w100_mode himalaya6_lcd_mode = {
  66         .xres           = 240,
  67         .yres           = 320,
  68         .left_margin    = 9,
  69         .right_margin   = 8,
  70         .upper_margin   = 5,
  71         .lower_margin   = 4,
  72         .crtc_ss        = 0x80150014,
  73         .crtc_ls        = 0xa0fb00f7,
  74         .crtc_gs        = 0xc0080007,
  75         .crtc_vpos_gs   = 0x00080007,
  76         .crtc_rev       = 0x0000000a,
  77         .crtc_dclk      = 0xa1700030,
  78         .crtc_gclk      = 0x8015010f,
  79         .crtc_goe       = 0x00000000,
  80         .pll_freq       = 95,
  81         .pixclk_divider = 0xb,
  82         .pixclk_divider_rotated = 4,
  83         .pixclk_src     = CLK_SRC_PLL,
  84         .sysclk_divider = 1,
  85         .sysclk_src     = CLK_SRC_PLL,
  86 };
  87
  88 static struct w100_gpio_regs himalaya_w100_gpio_info = {
  89         .init_data1 = 0xffff0000,       /* GPIO_DATA  */
  90         .gpio_dir1  = 0x00000000,       /* GPIO_CNTL1 */
  91         .gpio_oe1   = 0x003c0000,       /* GPIO_CNTL2 */
  92         .init_data2 = 0x00000000,       /* GPIO_DATA2 */
  93         .gpio_dir2  = 0x00000000,       /* GPIO_CNTL3 */
  94         .gpio_oe2   = 0x00000000,       /* GPIO_CNTL4 */
  95 };
  96
  97 static struct w100fb_mach_info himalaya_fb_info = {
  98         .num_modes  = 1,
  99         .regs       = &himalaya_lcd_regs,
 100         .gpio       = &himalaya_w100_gpio_info,
 101         .xtal_freq = 16000000,
 102 };
 103
 104 static struct resource himalaya_fb_resources[] = {
 105         [0] = {
 106                 .start  = 0x08000000,
 107                 .end    = 0x08ffffff,
 108                 .flags  = IORESOURCE_MEM,
 109         },
 110 };
 111
 112 static struct platform_device himalaya_fb_device = {
 113         .name           = "w100fb",
 114         .id             = -1,
 115         .dev            = {
 116                 .platform_data  = &himalaya_fb_info,
 117         },
 118         .num_resources  = ARRAY_SIZE(himalaya_fb_resources),
 119         .resource       = himalaya_fb_resources,
 120 };
 121
 122 /* ----------------------------------------------------------------------- */
 123
 124 static struct platform_device *devices[] __initdata = {
 125         &himalaya_fb_device,
 126 };
 127
 128 static void __init himalaya_lcd_init(void)
 129 {
 130         int himalaya_boardid;
 131
 132         himalaya_boardid = 0x4; /* hardcoded (detection needs ASIC3 functions) */
 133         printk(KERN_INFO "himalaya LCD Driver init. boardid=%d\n",
 134                 himalaya_boardid);
 135
 136         switch (himalaya_boardid) {
 137         case 0x4:
 138                 himalaya_fb_info.modelist = &himalaya4_lcd_mode;
 139         break;
 140         case 0x6:
 141                 himalaya_fb_info.modelist = &himalaya6_lcd_mode;
 142         break;
 143         default:
 144                 printk(KERN_INFO "himalaya lcd_init: unknown boardid=%d. Using 0x4\n",
 145                         himalaya_boardid);
 146                 himalaya_fb_info.modelist = &himalaya4_lcd_mode;
 147         }
 148 }
 149
 150 static void __init himalaya_init(void)
 151 {
 152         pxa_set_ffuart_info(NULL);
 153         pxa_set_btuart_info(NULL);
 154         pxa_set_stuart_info(NULL);
 155         himalaya_lcd_init();
 156         platform_add_devices(devices, ARRAY_SIZE(devices));
 157 }
 158
 159
 160 MACHINE_START(HIMALAYA, "HTC Himalaya")
 161         .atag_offset = 0x100,
 162         .map_io = pxa25x_map_io,
 163         .nr_irqs = PXA_NR_IRQS,
 164         .init_irq = pxa25x_init_irq,
 165         .handle_irq = pxa25x_handle_irq,
 166         .init_machine = himalaya_init,
 167         .init_time      = pxa_timer_init,
 168         .restart        = pxa_restart,
 169 MACHINE_END