arch/arm/mach-pxa/zylonite.c

   1 /*
   2  * linux/arch/arm/mach-pxa/zylonite.c
   3  *
   4  * Support for the PXA3xx Development Platform (aka Zylonite)
   5  *
   6  * Copyright (C) 2006 Marvell International Ltd.
   7  *
   8  * 2007-09-04: eric miao <eric.miao@marvell.com>
   9  *             rewrite to align with latest kernel
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  */
  15
  16 #include <linux/module.h>
  17 #include <linux/kernel.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/init.h>
  20 #include <linux/platform_device.h>
  21
  22 #include <asm/mach-types.h>
  23 #include <asm/mach/arch.h>
  24 #include <asm/hardware.h>
  25 #include <asm/arch/gpio.h>
  26 #include <asm/arch/pxafb.h>
  27 #include <asm/arch/zylonite.h>
  28
  29 #include "generic.h"
  30
  31 int gpio_backlight;
  32 int gpio_eth_irq;
  33
  34 int lcd_id;
  35 int lcd_orientation;
  36
  37 static struct resource smc91x_resources[] = {
  38         [0] = {
  39                 .start  = ZYLONITE_ETH_PHYS + 0x300,
  40                 .end    = ZYLONITE_ETH_PHYS + 0xfffff,
  41                 .flags  = IORESOURCE_MEM,
  42         },
  43         [1] = {
  44                 .start  = -1,   /* for run-time assignment */
  45                 .end    = -1,
  46                 .flags  = IORESOURCE_IRQ,
  47         }
  48 };
  49
  50 static struct platform_device smc91x_device = {
  51         .name           = "smc91x",
  52         .id             = 0,
  53         .num_resources  = ARRAY_SIZE(smc91x_resources),
  54         .resource       = smc91x_resources,
  55 };
  56
  57 #if defined(CONFIG_FB_PXA) || (CONFIG_FB_PXA_MODULES)
  58 static void zylonite_backlight_power(int on)
  59 {
  60         gpio_set_value(gpio_backlight, on);
  61 }
  62
  63 static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
  64         .pixclock               = 110000,
  65         .xres                   = 240,
  66         .yres                   = 320,
  67         .bpp                    = 16,
  68         .hsync_len              = 4,
  69         .left_margin            = 6,
  70         .right_margin           = 4,
  71         .vsync_len              = 2,
  72         .upper_margin           = 2,
  73         .lower_margin           = 3,
  74         .sync                   = FB_SYNC_VERT_HIGH_ACT,
  75 };
  76
  77 static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
  78         .pixclock               = 50000,
  79         .xres                   = 640,
  80         .yres                   = 480,
  81         .bpp                    = 16,
  82         .hsync_len              = 1,
  83         .left_margin            = 0x9f,
  84         .right_margin           = 1,
  85         .vsync_len              = 44,
  86         .upper_margin           = 0,
  87         .lower_margin           = 0,
  88         .sync                   = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
  89 };
  90
  91 static struct pxafb_mach_info zylonite_toshiba_lcd_info = {
  92         .num_modes              = 1,
  93         .lccr0                  = LCCR0_Act,
  94         .lccr3                  = LCCR3_PCP,
  95         .pxafb_backlight_power  = zylonite_backlight_power,
  96 };
  97
  98 static struct pxafb_mode_info sharp_ls037_modes[] = {
  99         [0] = {
 100                 .pixclock       = 158000,
 101                 .xres           = 240,
 102                 .yres           = 320,
 103                 .bpp            = 16,
 104                 .hsync_len      = 4,
 105                 .left_margin    = 39,
 106                 .right_margin   = 39,
 107                 .vsync_len      = 1,
 108                 .upper_margin   = 2,
 109                 .lower_margin   = 3,
 110                 .sync           = 0,
 111         },
 112         [1] = {
 113                 .pixclock       = 39700,
 114                 .xres           = 480,
 115                 .yres           = 640,
 116                 .bpp            = 16,
 117                 .hsync_len      = 8,
 118                 .left_margin    = 81,
 119                 .right_margin   = 81,
 120                 .vsync_len      = 1,
 121                 .upper_margin   = 2,
 122                 .lower_margin   = 7,
 123                 .sync           = 0,
 124         },
 125 };
 126
 127 static struct pxafb_mach_info zylonite_sharp_lcd_info = {
 128         .modes                  = sharp_ls037_modes,
 129         .num_modes              = 2,
 130         .lccr0                  = LCCR0_Act,
 131         .lccr3                  = LCCR3_PCP | LCCR3_HSP | LCCR3_VSP,
 132         .pxafb_backlight_power  = zylonite_backlight_power,
 133 };
 134
 135 static void __init zylonite_init_lcd(void)
 136 {
 137         /* backlight GPIO: output, default on */
 138         gpio_direction_output(gpio_backlight, 1);
 139
 140         if (lcd_id & 0x20) {
 141                 set_pxa_fb_info(&zylonite_sharp_lcd_info);
 142                 return;
 143         }
 144
 145         /* legacy LCD panels, it would be handy here if LCD panel type can
 146          * be decided at run-time
 147          */
 148         if (1)
 149                 zylonite_toshiba_lcd_info.modes = &toshiba_ltm035a776c_mode;
 150         else
 151                 zylonite_toshiba_lcd_info.modes = &toshiba_ltm04c380k_mode;
 152
 153         set_pxa_fb_info(&zylonite_toshiba_lcd_info);
 154 }
 155 #else
 156 static inline void zylonite_init_lcd(void) {}
 157 #endif
 158
 159 static void __init zylonite_init(void)
 160 {
 161         /* board-processor specific initialization */
 162         zylonite_pxa300_init();
 163         zylonite_pxa320_init();
 164
 165         /*
 166          * Note: We depend that the bootloader set
 167          * the correct value to MSC register for SMC91x.
 168          */
 169         smc91x_resources[1].start = gpio_to_irq(gpio_eth_irq);
 170         smc91x_resources[1].end   = gpio_to_irq(gpio_eth_irq);
 171         platform_device_register(&smc91x_device);
 172
 173         zylonite_init_lcd();
 174 }
 175
 176 MACHINE_START(ZYLONITE, "PXA3xx Platform Development Kit (aka Zylonite)")
 177         .phys_io        = 0x40000000,
 178         .boot_params    = 0xa0000100,
 179         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 180         .map_io         = pxa_map_io,
 181         .init_irq       = pxa3xx_init_irq,
 182         .timer          = &pxa_timer,
 183         .init_machine   = zylonite_init,
 184 MACHINE_END