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 <asm/hardware.h>
  29 #include <asm/irq.h>
  30
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33
  34 #include <asm/arch/pxa-regs.h>
  35 #include <asm/arch/idp.h>
  36 #include <asm/arch/pxafb.h>
  37 #include <asm/arch/bitfield.h>
  38 #include <asm/arch/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 struct resource smc91x_resources[] = {
  49         [0] = {
  50                 .start  = (IDP_ETH_PHYS + 0x300),
  51                 .end    = (IDP_ETH_PHYS + 0xfffff),
  52                 .flags  = IORESOURCE_MEM,
  53         },
  54         [1] = {
  55                 .start  = IRQ_GPIO(4),
  56                 .end    = IRQ_GPIO(4),
  57                 .flags  = IORESOURCE_IRQ,
  58         }
  59 };
  60
  61 static struct platform_device smc91x_device = {
  62         .name           = "smc91x",
  63         .id             = 0,
  64         .num_resources  = ARRAY_SIZE(smc91x_resources),
  65         .resource       = smc91x_resources,
  66 };
  67
  68 static void idp_backlight_power(int on)
  69 {
  70         if (on) {
  71                 IDP_CPLD_LCD |= (1<<1);
  72         } else {
  73                 IDP_CPLD_LCD &= ~(1<<1);
  74         }
  75 }
  76
  77 static void idp_vlcd(int on)
  78 {
  79         if (on) {
  80                 IDP_CPLD_LCD |= (1<<2);
  81         } else {
  82                 IDP_CPLD_LCD &= ~(1<<2);
  83         }
  84 }
  85
  86 static void idp_lcd_power(int on, struct fb_var_screeninfo *var)
  87 {
  88         if (on) {
  89                 IDP_CPLD_LCD |= (1<<0);
  90         } else {
  91                 IDP_CPLD_LCD &= ~(1<<0);
  92         }
  93
  94         /* call idp_vlcd for now as core driver does not support
  95          * both power and vlcd hooks.  Note, this is not technically
  96          * the correct sequence, but seems to work.  Disclaimer:
  97          * this may eventually damage the display.
  98          */
  99
 100         idp_vlcd(on);
 101 }
 102
 103 static struct pxafb_mode_info sharp_lm8v31_mode = {
 104         .pixclock       = 270000,
 105         .xres           = 640,
 106         .yres           = 480,
 107         .bpp            = 16,
 108         .hsync_len      = 1,
 109         .left_margin    = 3,
 110         .right_margin   = 3,
 111         .vsync_len      = 1,
 112         .upper_margin   = 0,
 113         .lower_margin   = 0,
 114         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 115         .cmap_greyscale = 0,
 116 };
 117
 118 static struct pxafb_mach_info sharp_lm8v31 = {
 119         .modes          = &sharp_lm8v31_mode,
 120         .num_modes      = 1,
 121         .cmap_inverse   = 0,
 122         .cmap_static    = 0,
 123         .lccr0          = LCCR0_SDS,
 124         .lccr3          = LCCR3_PCP | LCCR3_Acb(255),
 125         .pxafb_backlight_power = &idp_backlight_power,
 126         .pxafb_lcd_power = &idp_lcd_power
 127 };
 128
 129 static int idp_mci_init(struct device *dev, irq_handler_t idp_detect_int, void *data)
 130 {
 131         /* setup GPIO for PXA25x MMC controller */
 132         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 133         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 134
 135         return 0;
 136 }
 137
 138 static struct pxamci_platform_data idp_mci_platform_data = {
 139         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 140         .init           = idp_mci_init,
 141 };
 142
 143 static void __init idp_init(void)
 144 {
 145         printk("idp_init()\n");
 146
 147         platform_device_register(&smc91x_device);
 148         //platform_device_register(&mst_audio_device);
 149         set_pxa_fb_info(&sharp_lm8v31);
 150         pxa_set_mci_info(&idp_mci_platform_data);
 151 }
 152
 153 static void __init idp_init_irq(void)
 154 {
 155
 156         pxa25x_init_irq();
 157
 158         set_irq_type(TOUCH_PANEL_IRQ, TOUCH_PANEL_IRQ_EDGE);
 159 }
 160
 161 static struct map_desc idp_io_desc[] __initdata = {
 162         {
 163                 .virtual        =  IDP_COREVOLT_VIRT,
 164                 .pfn            = __phys_to_pfn(IDP_COREVOLT_PHYS),
 165                 .length         = IDP_COREVOLT_SIZE,
 166                 .type           = MT_DEVICE
 167         }, {
 168                 .virtual        =  IDP_CPLD_VIRT,
 169                 .pfn            = __phys_to_pfn(IDP_CPLD_PHYS),
 170                 .length         = IDP_CPLD_SIZE,
 171                 .type           = MT_DEVICE
 172         }
 173 };
 174
 175 static void __init idp_map_io(void)
 176 {
 177         pxa_map_io();
 178         iotable_init(idp_io_desc, ARRAY_SIZE(idp_io_desc));
 179
 180         // serial ports 2 & 3
 181         pxa_gpio_mode(GPIO42_BTRXD_MD);
 182         pxa_gpio_mode(GPIO43_BTTXD_MD);
 183         pxa_gpio_mode(GPIO44_BTCTS_MD);
 184         pxa_gpio_mode(GPIO45_BTRTS_MD);
 185         pxa_gpio_mode(GPIO46_STRXD_MD);
 186         pxa_gpio_mode(GPIO47_STTXD_MD);
 187
 188 }
 189
 190
 191 MACHINE_START(PXA_IDP, "Vibren PXA255 IDP")
 192         /* Maintainer: Vibren Technologies */
 193         .phys_io        = 0x40000000,
 194         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 195         .map_io         = idp_map_io,
 196         .init_irq       = idp_init_irq,
 197         .timer          = &pxa_timer,
 198         .init_machine   = idp_init,
 199 MACHINE_END