arch/arm/mach-pxa/idp.c

   1 /*
   2  *  linux/arch/arm/mach-pxa/idp.c
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License version 2 as
   6  *  published by the Free Software Foundation.
   7  *
   8  *  Copyright (c) 2001 Cliff Brake, Accelent Systems Inc.
   9  *
  10  *  2001-09-13: Cliff Brake <cbrake@accelent.com>
  11  *              Initial code
  12  *
  13  *  2005-02-15: Cliff Brake <cliff.brake@gmail.com>
  14  *              <http://www.vibren.com> <http://bec-systems.com>
  15  *              Updated for 2.6 kernel
  16  *
  17  */
  18
  19 #include <linux/init.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/irq.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/fb.h>
  24
  25 #include <asm/setup.h>
  26 #include <asm/memory.h>
  27 #include <asm/mach-types.h>
  28 #include <mach/hardware.h>
  29 #include <asm/irq.h>
  30
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33
  34 #include <mach/pxa25x.h>
  35 #include <mach/idp.h>
  36 #include <mach/pxafb.h>
  37 #include <mach/bitfield.h>
  38 #include <mach/mmc.h>
  39
  40 #include "generic.h"
  41 #include "devices.h"
  42
  43 /* TODO:
  44  * - add pxa2xx_audio_ops_t device structure
  45  * - Ethernet interrupt
  46  */
  47
  48 static unsigned long idp_pin_config[] __initdata = {
  49         /* LCD */
  50         GPIO58_LCD_LDD_0,
  51         GPIO59_LCD_LDD_1,
  52         GPIO60_LCD_LDD_2,
  53         GPIO61_LCD_LDD_3,
  54         GPIO62_LCD_LDD_4,
  55         GPIO63_LCD_LDD_5,
  56         GPIO64_LCD_LDD_6,
  57         GPIO65_LCD_LDD_7,
  58         GPIO66_LCD_LDD_8,
  59         GPIO67_LCD_LDD_9,
  60         GPIO68_LCD_LDD_10,
  61         GPIO69_LCD_LDD_11,
  62         GPIO70_LCD_LDD_12,
  63         GPIO71_LCD_LDD_13,
  64         GPIO72_LCD_LDD_14,
  65         GPIO73_LCD_LDD_15,
  66         GPIO74_LCD_FCLK,
  67         GPIO75_LCD_LCLK,
  68         GPIO76_LCD_PCLK,
  69
  70         /* BTUART */
  71         GPIO42_BTUART_RXD,
  72         GPIO43_BTUART_TXD,
  73         GPIO44_BTUART_CTS,
  74         GPIO45_BTUART_RTS,
  75
  76         /* STUART */
  77         GPIO46_STUART_RXD,
  78         GPIO47_STUART_TXD,
  79
  80         /* MMC */
  81         GPIO6_MMC_CLK,
  82         GPIO8_MMC_CS0,
  83
  84         /* Ethernet */
  85         GPIO33_nCS_5,   /* Ethernet CS */
  86         GPIO4_GPIO,     /* Ethernet IRQ */
  87 };
  88
  89 static struct resource smc91x_resources[] = {
  90         [0] = {
  91                 .start  = (IDP_ETH_PHYS + 0x300),
  92                 .end    = (IDP_ETH_PHYS + 0xfffff),
  93                 .flags  = IORESOURCE_MEM,
  94         },
  95         [1] = {
  96                 .start  = IRQ_GPIO(4),
  97                 .end    = IRQ_GPIO(4),
  98                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  99         }
 100 };
 101
 102 static struct platform_device smc91x_device = {
 103         .name           = "smc91x",
 104         .id             = 0,
 105         .num_resources  = ARRAY_SIZE(smc91x_resources),
 106         .resource       = smc91x_resources,
 107 };
 108
 109 static void idp_backlight_power(int on)
 110 {
 111         if (on) {
 112                 IDP_CPLD_LCD |= (1<<1);
 113         } else {
 114                 IDP_CPLD_LCD &= ~(1<<1);
 115         }
 116 }
 117
 118 static void idp_vlcd(int on)
 119 {
 120         if (on) {
 121                 IDP_CPLD_LCD |= (1<<2);
 122         } else {
 123                 IDP_CPLD_LCD &= ~(1<<2);
 124         }
 125 }
 126
 127 static void idp_lcd_power(int on, struct fb_var_screeninfo *var)
 128 {
 129         if (on) {
 130                 IDP_CPLD_LCD |= (1<<0);
 131         } else {
 132                 IDP_CPLD_LCD &= ~(1<<0);
 133         }
 134
 135         /* call idp_vlcd for now as core driver does not support
 136          * both power and vlcd hooks.  Note, this is not technically
 137          * the correct sequence, but seems to work.  Disclaimer:
 138          * this may eventually damage the display.
 139          */
 140
 141         idp_vlcd(on);
 142 }
 143
 144 static struct pxafb_mode_info sharp_lm8v31_mode = {
 145         .pixclock       = 270000,
 146         .xres           = 640,
 147         .yres           = 480,
 148         .bpp            = 16,
 149         .hsync_len      = 1,
 150         .left_margin    = 3,
 151         .right_margin   = 3,
 152         .vsync_len      = 1,
 153         .upper_margin   = 0,
 154         .lower_margin   = 0,
 155         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 156         .cmap_greyscale = 0,
 157 };
 158
 159 static struct pxafb_mach_info sharp_lm8v31 = {
 160         .modes          = &sharp_lm8v31_mode,
 161         .num_modes      = 1,
 162         .cmap_inverse   = 0,
 163         .cmap_static    = 0,
 164         .lcd_conn       = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
 165                           LCD_AC_BIAS_FREQ(255),
 166         .pxafb_backlight_power = &idp_backlight_power,
 167         .pxafb_lcd_power = &idp_lcd_power
 168 };
 169
 170 static struct pxamci_platform_data idp_mci_platform_data = {
 171         .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 172         .gpio_card_detect       = -1,
 173         .gpio_card_ro           = -1,
 174         .gpio_power             = -1,
 175 };
 176
 177 static void __init idp_init(void)
 178 {
 179         printk("idp_init()\n");
 180
 181         pxa2xx_mfp_config(ARRAY_AND_SIZE(idp_pin_config));
 182
 183         platform_device_register(&smc91x_device);
 184         //platform_device_register(&mst_audio_device);
 185         set_pxa_fb_info(&sharp_lm8v31);
 186         pxa_set_mci_info(&idp_mci_platform_data);
 187 }
 188
 189 static struct map_desc idp_io_desc[] __initdata = {
 190         {
 191                 .virtual        =  IDP_COREVOLT_VIRT,
 192                 .pfn            = __phys_to_pfn(IDP_COREVOLT_PHYS),
 193                 .length         = IDP_COREVOLT_SIZE,
 194                 .type           = MT_DEVICE
 195         }, {
 196                 .virtual        =  IDP_CPLD_VIRT,
 197                 .pfn            = __phys_to_pfn(IDP_CPLD_PHYS),
 198                 .length         = IDP_CPLD_SIZE,
 199                 .type           = MT_DEVICE
 200         }
 201 };
 202
 203 static void __init idp_map_io(void)
 204 {
 205         pxa_map_io();
 206         iotable_init(idp_io_desc, ARRAY_SIZE(idp_io_desc));
 207 }
 208
 209
 210 MACHINE_START(PXA_IDP, "Vibren PXA255 IDP")
 211         /* Maintainer: Vibren Technologies */
 212         .phys_io        = 0x40000000,
 213         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 214         .map_io         = idp_map_io,
 215         .init_irq       = pxa25x_init_irq,
 216         .timer          = &pxa_timer,
 217         .init_machine   = idp_init,
 218 MACHINE_END