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/pxa2xx-gpio.h>
  36 #include <asm/arch/idp.h>
  37 #include <asm/arch/pxafb.h>
  38 #include <asm/arch/bitfield.h>
  39 #include <asm/arch/mmc.h>
  40
  41 #include "generic.h"
  42 #include "devices.h"
  43
  44 /* TODO:
  45  * - add pxa2xx_audio_ops_t device structure
  46  * - Ethernet interrupt
  47  */
  48
  49 static struct resource smc91x_resources[] = {
  50         [0] = {
  51                 .start  = (IDP_ETH_PHYS + 0x300),
  52                 .end    = (IDP_ETH_PHYS + 0xfffff),
  53                 .flags  = IORESOURCE_MEM,
  54         },
  55         [1] = {
  56                 .start  = IRQ_GPIO(4),
  57                 .end    = IRQ_GPIO(4),
  58                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  59         }
  60 };
  61
  62 static struct platform_device smc91x_device = {
  63         .name           = "smc91x",
  64         .id             = 0,
  65         .num_resources  = ARRAY_SIZE(smc91x_resources),
  66         .resource       = smc91x_resources,
  67 };
  68
  69 static void idp_backlight_power(int on)
  70 {
  71         if (on) {
  72                 IDP_CPLD_LCD |= (1<<1);
  73         } else {
  74                 IDP_CPLD_LCD &= ~(1<<1);
  75         }
  76 }
  77
  78 static void idp_vlcd(int on)
  79 {
  80         if (on) {
  81                 IDP_CPLD_LCD |= (1<<2);
  82         } else {
  83                 IDP_CPLD_LCD &= ~(1<<2);
  84         }
  85 }
  86
  87 static void idp_lcd_power(int on, struct fb_var_screeninfo *var)
  88 {
  89         if (on) {
  90                 IDP_CPLD_LCD |= (1<<0);
  91         } else {
  92                 IDP_CPLD_LCD &= ~(1<<0);
  93         }
  94
  95         /* call idp_vlcd for now as core driver does not support
  96          * both power and vlcd hooks.  Note, this is not technically
  97          * the correct sequence, but seems to work.  Disclaimer:
  98          * this may eventually damage the display.
  99          */
 100
 101         idp_vlcd(on);
 102 }
 103
 104 static struct pxafb_mode_info sharp_lm8v31_mode = {
 105         .pixclock       = 270000,
 106         .xres           = 640,
 107         .yres           = 480,
 108         .bpp            = 16,
 109         .hsync_len      = 1,
 110         .left_margin    = 3,
 111         .right_margin   = 3,
 112         .vsync_len      = 1,
 113         .upper_margin   = 0,
 114         .lower_margin   = 0,
 115         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 116         .cmap_greyscale = 0,
 117 };
 118
 119 static struct pxafb_mach_info sharp_lm8v31 = {
 120         .modes          = &sharp_lm8v31_mode,
 121         .num_modes      = 1,
 122         .cmap_inverse   = 0,
 123         .cmap_static    = 0,
 124         .lccr0          = LCCR0_SDS,
 125         .lccr3          = LCCR3_PCP | LCCR3_Acb(255),
 126         .pxafb_backlight_power = &idp_backlight_power,
 127         .pxafb_lcd_power = &idp_lcd_power
 128 };
 129
 130 static int idp_mci_init(struct device *dev, irq_handler_t idp_detect_int, void *data)
 131 {
 132         /* setup GPIO for PXA25x MMC controller */
 133         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 134         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 135
 136         return 0;
 137 }
 138
 139 static struct pxamci_platform_data idp_mci_platform_data = {
 140         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 141         .init           = idp_mci_init,
 142 };
 143
 144 static void __init idp_init(void)
 145 {
 146         printk("idp_init()\n");
 147
 148         platform_device_register(&smc91x_device);
 149         //platform_device_register(&mst_audio_device);
 150         set_pxa_fb_info(&sharp_lm8v31);
 151         pxa_set_mci_info(&idp_mci_platform_data);
 152 }
 153
 154 static void __init idp_init_irq(void)
 155 {
 156
 157         pxa25x_init_irq();
 158
 159         set_irq_type(TOUCH_PANEL_IRQ, TOUCH_PANEL_IRQ_EDGE);
 160 }
 161
 162 static struct map_desc idp_io_desc[] __initdata = {
 163         {
 164                 .virtual        =  IDP_COREVOLT_VIRT,
 165                 .pfn            = __phys_to_pfn(IDP_COREVOLT_PHYS),
 166                 .length         = IDP_COREVOLT_SIZE,
 167                 .type           = MT_DEVICE
 168         }, {
 169                 .virtual        =  IDP_CPLD_VIRT,
 170                 .pfn            = __phys_to_pfn(IDP_CPLD_PHYS),
 171                 .length         = IDP_CPLD_SIZE,
 172                 .type           = MT_DEVICE
 173         }
 174 };
 175
 176 static void __init idp_map_io(void)
 177 {
 178         pxa_map_io();
 179         iotable_init(idp_io_desc, ARRAY_SIZE(idp_io_desc));
 180
 181         // serial ports 2 & 3
 182         pxa_gpio_mode(GPIO42_BTRXD_MD);
 183         pxa_gpio_mode(GPIO43_BTTXD_MD);
 184         pxa_gpio_mode(GPIO44_BTCTS_MD);
 185         pxa_gpio_mode(GPIO45_BTRTS_MD);
 186         pxa_gpio_mode(GPIO46_STRXD_MD);
 187         pxa_gpio_mode(GPIO47_STTXD_MD);
 188
 189 }
 190
 191
 192 MACHINE_START(PXA_IDP, "Vibren PXA255 IDP")
 193         /* Maintainer: Vibren Technologies */
 194         .phys_io        = 0x40000000,
 195         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 196         .map_io         = idp_map_io,
 197         .init_irq       = idp_init_irq,
 198         .timer          = &pxa_timer,
 199         .init_machine   = idp_init,
 200 MACHINE_END