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/device.h>
  22 #include <linux/fb.h>
  23
  24 #include <asm/setup.h>
  25 #include <asm/memory.h>
  26 #include <asm/mach-types.h>
  27 #include <asm/hardware.h>
  28 #include <asm/irq.h>
  29
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32
  33 #include <asm/arch/pxa-regs.h>
  34 #include <asm/arch/idp.h>
  35 #include <asm/arch/pxafb.h>
  36 #include <asm/arch/bitfield.h>
  37 #include <asm/arch/mmc.h>
  38
  39 #include "generic.h"
  40
  41 /* TODO:
  42  * - add pxa2xx_audio_ops_t device structure
  43  * - Ethernet interrupt
  44  */
  45
  46 static struct resource smc91x_resources[] = {
  47         [0] = {
  48                 .start  = (IDP_ETH_PHYS + 0x300),
  49                 .end    = (IDP_ETH_PHYS + 0xfffff),
  50                 .flags  = IORESOURCE_MEM,
  51         },
  52         [1] = {
  53                 .start  = IRQ_GPIO(4),
  54                 .end    = IRQ_GPIO(4),
  55                 .flags  = IORESOURCE_IRQ,
  56         }
  57 };
  58
  59 static struct platform_device smc91x_device = {
  60         .name           = "smc91x",
  61         .id             = 0,
  62         .num_resources  = ARRAY_SIZE(smc91x_resources),
  63         .resource       = smc91x_resources,
  64 };
  65
  66 static void idp_backlight_power(int on)
  67 {
  68         if (on) {
  69                 IDP_CPLD_LCD |= (1<<1);
  70         } else {
  71                 IDP_CPLD_LCD &= ~(1<<1);
  72         }
  73 }
  74
  75 static void idp_vlcd(int on)
  76 {
  77         if (on) {
  78                 IDP_CPLD_LCD |= (1<<2);
  79         } else {
  80                 IDP_CPLD_LCD &= ~(1<<2);
  81         }
  82 }
  83
  84 static void idp_lcd_power(int on)
  85 {
  86         if (on) {
  87                 IDP_CPLD_LCD |= (1<<0);
  88         } else {
  89                 IDP_CPLD_LCD &= ~(1<<0);
  90         }
  91
  92         /* call idp_vlcd for now as core driver does not support
  93          * both power and vlcd hooks.  Note, this is not technically
  94          * the correct sequence, but seems to work.  Disclaimer:
  95          * this may eventually damage the display.
  96          */
  97
  98         idp_vlcd(on);
  99 }
 100
 101 static struct pxafb_mach_info sharp_lm8v31 __initdata = {
 102         .pixclock       = 270000,
 103         .xres           = 640,
 104         .yres           = 480,
 105         .bpp            = 16,
 106         .hsync_len      = 1,
 107         .left_margin    = 3,
 108         .right_margin   = 3,
 109         .vsync_len      = 1,
 110         .upper_margin   = 0,
 111         .lower_margin   = 0,
 112         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 113         .cmap_greyscale = 0,
 114         .cmap_inverse   = 0,
 115         .cmap_static    = 0,
 116         .lccr0          = LCCR0_SDS,
 117         .lccr3          = LCCR3_PCP | LCCR3_Acb(255),
 118         .pxafb_backlight_power = &idp_backlight_power,
 119         .pxafb_lcd_power = &idp_lcd_power
 120 };
 121
 122 static int idp_mci_init(struct device *dev, irqreturn_t (*idp_detect_int)(int, void *, struct pt_regs *), void *data)
 123 {
 124         /* setup GPIO for PXA25x MMC controller */
 125         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 126         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 127
 128         return 0;
 129 }
 130
 131 static struct pxamci_platform_data idp_mci_platform_data = {
 132         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 133         .init           = idp_mci_init,
 134 };
 135
 136 static void __init idp_init(void)
 137 {
 138         printk("idp_init()\n");
 139
 140         platform_device_register(&smc91x_device);
 141         //platform_device_register(&mst_audio_device);
 142         set_pxa_fb_info(&sharp_lm8v31);
 143         pxa_set_mci_info(&idp_mci_platform_data);
 144 }
 145
 146 static void __init idp_init_irq(void)
 147 {
 148
 149         pxa_init_irq();
 150
 151         set_irq_type(TOUCH_PANEL_IRQ, TOUCH_PANEL_IRQ_EDGE);
 152 }
 153
 154 static struct map_desc idp_io_desc[] __initdata = {
 155  /* virtual     physical    length      type */
 156
 157   { IDP_COREVOLT_VIRT,
 158     IDP_COREVOLT_PHYS,
 159     IDP_COREVOLT_SIZE,
 160     MT_DEVICE },
 161   { IDP_CPLD_VIRT,
 162     IDP_CPLD_PHYS,
 163     IDP_CPLD_SIZE,
 164     MT_DEVICE }
 165 };
 166
 167 static void __init idp_map_io(void)
 168 {
 169         pxa_map_io();
 170         iotable_init(idp_io_desc, ARRAY_SIZE(idp_io_desc));
 171
 172         // serial ports 2 & 3
 173         pxa_gpio_mode(GPIO42_BTRXD_MD);
 174         pxa_gpio_mode(GPIO43_BTTXD_MD);
 175         pxa_gpio_mode(GPIO44_BTCTS_MD);
 176         pxa_gpio_mode(GPIO45_BTRTS_MD);
 177         pxa_gpio_mode(GPIO46_STRXD_MD);
 178         pxa_gpio_mode(GPIO47_STTXD_MD);
 179
 180 }
 181
 182
 183 MACHINE_START(PXA_IDP, "Vibren PXA255 IDP")
 184         MAINTAINER("Vibren Technologies")
 185         BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
 186         MAPIO(idp_map_io)
 187         INITIRQ(idp_init_irq)
 188         .timer          = &pxa_timer,
 189         INIT_MACHINE(idp_init)
 190 MACHINE_END