release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-pxa/colibri-pxa320.c

   1 /*
   2  *  arch/arm/mach-pxa/colibri-pxa320.c
   3  *
   4  *  Support for Toradex PXA320/310 based Colibri module
   5  *
   6  *  Daniel Mack <daniel@caiaq.de>
   7  *  Matthias Meier <matthias.j.meier@gmx.net>
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License version 2 as
  11  *  published by the Free Software Foundation.
  12  */
  13
  14 #include <linux/init.h>
  15 #include <linux/kernel.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/gpio.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/usb/gpio_vbus.h>
  20
  21 #include <asm/mach-types.h>
  22 #include <asm/sizes.h>
  23 #include <asm/mach/arch.h>
  24 #include <asm/mach/irq.h>
  25
  26 #include <mach/pxa3xx-regs.h>
  27 #include <mach/mfp-pxa320.h>
  28 #include <mach/colibri.h>
  29 #include <mach/pxafb.h>
  30 #include <mach/ohci.h>
  31 #include <mach/audio.h>
  32 #include <mach/pxa27x-udc.h>
  33 #include <mach/udc.h>
  34
  35 #include "generic.h"
  36 #include "devices.h"
  37
  38 #if defined(CONFIG_AX88796)
  39 #define COLIBRI_ETH_IRQ_GPIO    mfp_to_gpio(GPIO36_GPIO)
  40
  41 /*
  42  * Asix AX88796 Ethernet
  43  */
  44 static struct ax_plat_data colibri_asix_platdata = {
  45         .flags          = 0, /* defined later */
  46         .wordlength     = 2,
  47 };
  48
  49 static struct resource colibri_asix_resource[] = {
  50         [0] = {
  51                 .start = PXA3xx_CS2_PHYS,
  52                 .end   = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
  53                 .flags = IORESOURCE_MEM,
  54         },
  55         [1] = {
  56                 .start = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
  57                 .end   = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
  58                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
  59         }
  60 };
  61
  62 static struct platform_device asix_device = {
  63         .name           = "ax88796",
  64         .id             = 0,
  65         .num_resources  = ARRAY_SIZE(colibri_asix_resource),
  66         .resource       = colibri_asix_resource,
  67         .dev            = {
  68                 .platform_data = &colibri_asix_platdata
  69         }
  70 };
  71
  72 static mfp_cfg_t colibri_pxa320_eth_pin_config[] __initdata = {
  73         GPIO3_nCS2,                     /* AX88796 chip select */
  74         GPIO36_GPIO | MFP_PULL_HIGH     /* AX88796 IRQ */
  75 };
  76
  77 static void __init colibri_pxa320_init_eth(void)
  78 {
  79         colibri_pxa3xx_init_eth(&colibri_asix_platdata);
  80         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_eth_pin_config));
  81         platform_device_register(&asix_device);
  82 }
  83 #else
  84 static inline void __init colibri_pxa320_init_eth(void) {}
  85 #endif /* CONFIG_AX88796 */
  86
  87 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  88 static mfp_cfg_t colibri_pxa320_usb_pin_config[] __initdata = {
  89         GPIO2_2_USBH_PEN,
  90         GPIO3_2_USBH_PWR,
  91 };
  92
  93 static struct pxaohci_platform_data colibri_pxa320_ohci_info = {
  94         .port_mode      = PMM_GLOBAL_MODE,
  95         .flags          = ENABLE_PORT1 | POWER_CONTROL_LOW | POWER_SENSE_LOW,
  96 };
  97
  98 void __init colibri_pxa320_init_ohci(void)
  99 {
 100         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_usb_pin_config));
 101         pxa_set_ohci_info(&colibri_pxa320_ohci_info);
 102 }
 103 #else
 104 static inline void colibri_pxa320_init_ohci(void) {}
 105 #endif /* CONFIG_USB_OHCI_HCD || CONFIG_USB_OHCI_HCD_MODULE */
 106
 107 #if defined(CONFIG_USB_GADGET_PXA27X)||defined(CONFIG_USB_GADGET_PXA27X_MODULE)
 108 static struct gpio_vbus_mach_info colibri_pxa320_gpio_vbus_info = {
 109         .gpio_vbus              = mfp_to_gpio(MFP_PIN_GPIO96),
 110         .gpio_pullup            = -1,
 111 };
 112
 113 static struct platform_device colibri_pxa320_gpio_vbus = {
 114         .name   = "gpio-vbus",
 115         .id     = -1,
 116         .dev    = {
 117                 .platform_data  = &colibri_pxa320_gpio_vbus_info,
 118         },
 119 };
 120
 121 static void colibri_pxa320_udc_command(int cmd)
 122 {
 123         if (cmd == PXA2XX_UDC_CMD_CONNECT)
 124                 UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE;
 125         else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
 126                 UP2OCR = UP2OCR_HXOE;
 127 }
 128
 129 static struct pxa2xx_udc_mach_info colibri_pxa320_udc_info __initdata = {
 130         .udc_command            = colibri_pxa320_udc_command,
 131         .gpio_pullup            = -1,
 132 };
 133
 134 static void __init colibri_pxa320_init_udc(void)
 135 {
 136         pxa_set_udc_info(&colibri_pxa320_udc_info);
 137         platform_device_register(&colibri_pxa320_gpio_vbus);
 138 }
 139 #else
 140 static inline void colibri_pxa320_init_udc(void) {}
 141 #endif
 142
 143 static mfp_cfg_t colibri_pxa320_mmc_pin_config[] __initdata = {
 144         GPIO22_MMC1_CLK,
 145         GPIO23_MMC1_CMD,
 146         GPIO18_MMC1_DAT0,
 147         GPIO19_MMC1_DAT1,
 148         GPIO20_MMC1_DAT2,
 149         GPIO21_MMC1_DAT3
 150 };
 151
 152 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 153 static mfp_cfg_t colibri_pxa320_lcd_pin_config[] __initdata = {
 154         GPIO6_2_LCD_LDD_0,
 155         GPIO7_2_LCD_LDD_1,
 156         GPIO8_2_LCD_LDD_2,
 157         GPIO9_2_LCD_LDD_3,
 158         GPIO10_2_LCD_LDD_4,
 159         GPIO11_2_LCD_LDD_5,
 160         GPIO12_2_LCD_LDD_6,
 161         GPIO13_2_LCD_LDD_7,
 162         GPIO63_LCD_LDD_8,
 163         GPIO64_LCD_LDD_9,
 164         GPIO65_LCD_LDD_10,
 165         GPIO66_LCD_LDD_11,
 166         GPIO67_LCD_LDD_12,
 167         GPIO68_LCD_LDD_13,
 168         GPIO69_LCD_LDD_14,
 169         GPIO70_LCD_LDD_15,
 170         GPIO71_LCD_LDD_16,
 171         GPIO72_LCD_LDD_17,
 172         GPIO73_LCD_CS_N,
 173         GPIO74_LCD_VSYNC,
 174         GPIO14_2_LCD_FCLK,
 175         GPIO15_2_LCD_LCLK,
 176         GPIO16_2_LCD_PCLK,
 177         GPIO17_2_LCD_BIAS,
 178 };
 179
 180 static void __init colibri_pxa320_init_lcd(void)
 181 {
 182         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_lcd_pin_config));
 183 }
 184 #else
 185 static inline void colibri_pxa320_init_lcd(void) {}
 186 #endif
 187
 188 #if     defined(CONFIG_SND_AC97_CODEC) || defined(CONFIG_SND_AC97_CODEC_MODULE)
 189 static mfp_cfg_t colibri_pxa320_ac97_pin_config[] __initdata = {
 190         GPIO34_AC97_SYSCLK,
 191         GPIO35_AC97_SDATA_IN_0,
 192         GPIO37_AC97_SDATA_OUT,
 193         GPIO38_AC97_SYNC,
 194         GPIO39_AC97_BITCLK,
 195         GPIO40_AC97_nACRESET
 196 };
 197
 198 static inline void __init colibri_pxa320_init_ac97(void)
 199 {
 200         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_ac97_pin_config));
 201         pxa_set_ac97_info(NULL);
 202 }
 203 #else
 204 static inline void colibri_pxa320_init_ac97(void) {}
 205 #endif
 206
 207 /*
 208  * The following configuration is verified to work with the Toradex Orchid
 209  * carrier board
 210  */
 211 static mfp_cfg_t colibri_pxa320_uart_pin_config[] __initdata = {
 212         /* UART 1 configuration (may be set by bootloader) */
 213         GPIO99_UART1_CTS,
 214         GPIO104_UART1_RTS,
 215         GPIO97_UART1_RXD,
 216         GPIO98_UART1_TXD,
 217         GPIO101_UART1_DTR,
 218         GPIO103_UART1_DSR,
 219         GPIO100_UART1_DCD,
 220         GPIO102_UART1_RI,
 221
 222         /* UART 2 configuration */
 223         GPIO109_UART2_CTS,
 224         GPIO112_UART2_RTS,
 225         GPIO110_UART2_RXD,
 226         GPIO111_UART2_TXD,
 227
 228         /* UART 3 configuration */
 229         GPIO30_UART3_RXD,
 230         GPIO31_UART3_TXD,
 231 };
 232
 233 static void __init colibri_pxa320_init_uart(void)
 234 {
 235         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_uart_pin_config));
 236 }
 237
 238 void __init colibri_pxa320_init(void)
 239 {
 240         pxa_set_ffuart_info(NULL);
 241         pxa_set_btuart_info(NULL);
 242         pxa_set_stuart_info(NULL);
 243
 244         colibri_pxa320_init_eth();
 245         colibri_pxa320_init_ohci();
 246         colibri_pxa3xx_init_nand();
 247         colibri_pxa320_init_lcd();
 248         colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO49_GPIO));
 249         colibri_pxa320_init_ac97();
 250         colibri_pxa3xx_init_mmc(ARRAY_AND_SIZE(colibri_pxa320_mmc_pin_config),
 251                                 mfp_to_gpio(MFP_PIN_GPIO28));
 252         colibri_pxa320_init_uart();
 253         colibri_pxa320_init_udc();
 254 }
 255
 256 MACHINE_START(COLIBRI320, "Toradex Colibri PXA320")
 257         .phys_io        = 0x40000000,
 258         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 259         .boot_params    = COLIBRI_SDRAM_BASE + 0x100,
 260         .init_machine   = colibri_pxa320_init,
 261         .map_io         = pxa_map_io,
 262         .init_irq       = pxa3xx_init_irq,
 263         .timer          = &pxa_timer,
 264 MACHINE_END