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