arch/arm/mach-pxa/himalaya.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * linux/arch/arm/mach-pxa/himalaya.c
   4  *
   5  * Hardware definitions for the HTC Himalaya
   6  *
   7  * Based on 2.6.21-hh20's himalaya.c and himalaya_lcd.c
   8  *
   9  * Copyright (c) 2008 Zbynek Michl <Zbynek.Michl@seznam.cz>
  10  */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14 #include <linux/device.h>
  15 #include <linux/fb.h>
  16 #include <linux/platform_device.h>
  17
  18 #include <video/w100fb.h>
  19
  20 #include <asm/setup.h>
  21 #include <asm/mach-types.h>
  22 #include <asm/mach/arch.h>
  23
  24 #include "pxa25x.h"
  25
  26 #include "generic.h"
  27
  28 /* ---------------------- Himalaya LCD definitions -------------------- */
  29
  30 static struct w100_gen_regs himalaya_lcd_regs = {
  31         .lcd_format =        0x00000003,
  32         .lcdd_cntl1 =        0x00000000,
  33         .lcdd_cntl2 =        0x0003ffff,
  34         .genlcd_cntl1 =      0x00fff003,
  35         .genlcd_cntl2 =      0x00000003,
  36         .genlcd_cntl3 =      0x000102aa,
  37 };
  38
  39 static struct w100_mode himalaya4_lcd_mode = {
  40         .xres           = 240,
  41         .yres           = 320,
  42         .left_margin    = 0,
  43         .right_margin   = 31,
  44         .upper_margin   = 15,
  45         .lower_margin   = 0,
  46         .crtc_ss        = 0x80150014,
  47         .crtc_ls        = 0xa0fb00f7,
  48         .crtc_gs        = 0xc0080007,
  49         .crtc_vpos_gs   = 0x00080007,
  50         .crtc_rev       = 0x0000000a,
  51         .crtc_dclk      = 0x81700030,
  52         .crtc_gclk      = 0x8015010f,
  53         .crtc_goe       = 0x00000000,
  54         .pll_freq       = 80,
  55         .pixclk_divider = 15,
  56         .pixclk_divider_rotated = 15,
  57         .pixclk_src     = CLK_SRC_PLL,
  58         .sysclk_divider = 0,
  59         .sysclk_src     = CLK_SRC_PLL,
  60 };
  61
  62 static struct w100_mode himalaya6_lcd_mode = {
  63         .xres           = 240,
  64         .yres           = 320,
  65         .left_margin    = 9,
  66         .right_margin   = 8,
  67         .upper_margin   = 5,
  68         .lower_margin   = 4,
  69         .crtc_ss        = 0x80150014,
  70         .crtc_ls        = 0xa0fb00f7,
  71         .crtc_gs        = 0xc0080007,
  72         .crtc_vpos_gs   = 0x00080007,
  73         .crtc_rev       = 0x0000000a,
  74         .crtc_dclk      = 0xa1700030,
  75         .crtc_gclk      = 0x8015010f,
  76         .crtc_goe       = 0x00000000,
  77         .pll_freq       = 95,
  78         .pixclk_divider = 0xb,
  79         .pixclk_divider_rotated = 4,
  80         .pixclk_src     = CLK_SRC_PLL,
  81         .sysclk_divider = 1,
  82         .sysclk_src     = CLK_SRC_PLL,
  83 };
  84
  85 static struct w100_gpio_regs himalaya_w100_gpio_info = {
  86         .init_data1 = 0xffff0000,       /* GPIO_DATA  */
  87         .gpio_dir1  = 0x00000000,       /* GPIO_CNTL1 */
  88         .gpio_oe1   = 0x003c0000,       /* GPIO_CNTL2 */
  89         .init_data2 = 0x00000000,       /* GPIO_DATA2 */
  90         .gpio_dir2  = 0x00000000,       /* GPIO_CNTL3 */
  91         .gpio_oe2   = 0x00000000,       /* GPIO_CNTL4 */
  92 };
  93
  94 static struct w100fb_mach_info himalaya_fb_info = {
  95         .num_modes  = 1,
  96         .regs       = &himalaya_lcd_regs,
  97         .gpio       = &himalaya_w100_gpio_info,
  98         .xtal_freq = 16000000,
  99 };
 100
 101 static struct resource himalaya_fb_resources[] = {
 102         [0] = {
 103                 .start  = 0x08000000,
 104                 .end    = 0x08ffffff,
 105                 .flags  = IORESOURCE_MEM,
 106         },
 107 };
 108
 109 static struct platform_device himalaya_fb_device = {
 110         .name           = "w100fb",
 111         .id             = -1,
 112         .dev            = {
 113                 .platform_data  = &himalaya_fb_info,
 114         },
 115         .num_resources  = ARRAY_SIZE(himalaya_fb_resources),
 116         .resource       = himalaya_fb_resources,
 117 };
 118
 119 /* ----------------------------------------------------------------------- */
 120
 121 static struct platform_device *devices[] __initdata = {
 122         &himalaya_fb_device,
 123 };
 124
 125 static void __init himalaya_lcd_init(void)
 126 {
 127         int himalaya_boardid;
 128
 129         himalaya_boardid = 0x4; /* hardcoded (detection needs ASIC3 functions) */
 130         printk(KERN_INFO "himalaya LCD Driver init. boardid=%d\n",
 131                 himalaya_boardid);
 132
 133         switch (himalaya_boardid) {
 134         case 0x4:
 135                 himalaya_fb_info.modelist = &himalaya4_lcd_mode;
 136         break;
 137         case 0x6:
 138                 himalaya_fb_info.modelist = &himalaya6_lcd_mode;
 139         break;
 140         default:
 141                 printk(KERN_INFO "himalaya lcd_init: unknown boardid=%d. Using 0x4\n",
 142                         himalaya_boardid);
 143                 himalaya_fb_info.modelist = &himalaya4_lcd_mode;
 144         }
 145 }
 146
 147 static void __init himalaya_init(void)
 148 {
 149         pxa_set_ffuart_info(NULL);
 150         pxa_set_btuart_info(NULL);
 151         pxa_set_stuart_info(NULL);
 152         himalaya_lcd_init();
 153         platform_add_devices(devices, ARRAY_SIZE(devices));
 154 }
 155
 156
 157 MACHINE_START(HIMALAYA, "HTC Himalaya")
 158         .atag_offset = 0x100,
 159         .map_io = pxa25x_map_io,
 160         .nr_irqs = PXA_NR_IRQS,
 161         .init_irq = pxa25x_init_irq,
 162         .handle_irq = pxa25x_handle_irq,
 163         .init_machine = himalaya_init,
 164         .init_time      = pxa_timer_init,
 165         .restart        = pxa_restart,
 166 MACHINE_END