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 #ifdef  CONFIG_MACH_COLIBRI_EVALBOARD
  39 static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {
  40         /* MMC */
  41         GPIO22_MMC1_CLK,
  42         GPIO23_MMC1_CMD,
  43         GPIO18_MMC1_DAT0,
  44         GPIO19_MMC1_DAT1,
  45         GPIO20_MMC1_DAT2,
  46         GPIO21_MMC1_DAT3,
  47         GPIO28_GPIO,    /* SD detect */
  48
  49         /* UART 1 configuration (may be set by bootloader) */
  50         GPIO99_UART1_CTS,
  51         GPIO104_UART1_RTS,
  52         GPIO97_UART1_RXD,
  53         GPIO98_UART1_TXD,
  54         GPIO101_UART1_DTR,
  55         GPIO103_UART1_DSR,
  56         GPIO100_UART1_DCD,
  57         GPIO102_UART1_RI,
  58
  59         /* UART 2 configuration */
  60         GPIO109_UART2_CTS,
  61         GPIO112_UART2_RTS,
  62         GPIO110_UART2_RXD,
  63         GPIO111_UART2_TXD,
  64
  65         /* UART 3 configuration */
  66         GPIO30_UART3_RXD,
  67         GPIO31_UART3_TXD,
  68
  69         /* UHC */
  70         GPIO2_2_USBH_PEN,
  71         GPIO3_2_USBH_PWR,
  72
  73         /* I2C */
  74         GPIO32_I2C_SCL,
  75         GPIO33_I2C_SDA,
  76
  77         /* PCMCIA */
  78         MFP_CFG(GPIO59, AF7),   /* PRST ; AF7 to tristate */
  79         MFP_CFG(GPIO61, AF7),   /* PCE1 ; AF7 to tristate */
  80         MFP_CFG(GPIO60, AF7),   /* PCE2 ; AF7 to tristate */
  81         MFP_CFG(GPIO62, AF7),   /* PCD ; AF7 to tristate */
  82         MFP_CFG(GPIO56, AF7),   /* PSKTSEL ; AF7 to tristate */
  83         GPIO27_GPIO,            /* RDnWR ; input/tristate */
  84         GPIO50_GPIO,            /* PREG ; input/tristate */
  85         GPIO2_RDY,
  86         GPIO5_NPIOR,
  87         GPIO6_NPIOW,
  88         GPIO7_NPIOS16,
  89         GPIO8_NPWAIT,
  90         GPIO29_GPIO,            /* PRDY (READY GPIO) */
  91         GPIO57_GPIO,            /* PPEN (POWER GPIO) */
  92         GPIO81_GPIO,            /* PCD (DETECT GPIO) */
  93         GPIO77_GPIO,            /* PRST (RESET GPIO) */
  94         GPIO53_GPIO,            /* PBVD1 */
  95         GPIO79_GPIO,            /* PBVD2 */
  96         GPIO54_GPIO,            /* POE */
  97 };
  98 #else
  99 static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {};
 100 #endif
 101
 102 #if defined(CONFIG_AX88796)
 103 #define COLIBRI_ETH_IRQ_GPIO    mfp_to_gpio(GPIO36_GPIO)
 104 /*
 105  * Asix AX88796 Ethernet
 106  */
 107 static struct ax_plat_data colibri_asix_platdata = {
 108         .flags          = 0, /* defined later */
 109         .wordlength     = 2,
 110 };
 111
 112 static struct resource colibri_asix_resource[] = {
 113         [0] = {
 114                 .start = PXA3xx_CS2_PHYS,
 115                 .end   = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
 116                 .flags = IORESOURCE_MEM,
 117         },
 118         [1] = {
 119                 .start = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
 120                 .end   = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
 121                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
 122         }
 123 };
 124
 125 static struct platform_device asix_device = {
 126         .name           = "ax88796",
 127         .id             = 0,
 128         .num_resources  = ARRAY_SIZE(colibri_asix_resource),
 129         .resource       = colibri_asix_resource,
 130         .dev            = {
 131                 .platform_data = &colibri_asix_platdata
 132         }
 133 };
 134
 135 static mfp_cfg_t colibri_pxa320_eth_pin_config[] __initdata = {
 136         GPIO3_nCS2,                     /* AX88796 chip select */
 137         GPIO36_GPIO | MFP_PULL_HIGH     /* AX88796 IRQ */
 138 };
 139
 140 static void __init colibri_pxa320_init_eth(void)
 141 {
 142         colibri_pxa3xx_init_eth(&colibri_asix_platdata);
 143         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_eth_pin_config));
 144         platform_device_register(&asix_device);
 145 }
 146 #else
 147 static inline void __init colibri_pxa320_init_eth(void) {}
 148 #endif /* CONFIG_AX88796 */
 149
 150 #if defined(CONFIG_USB_GADGET_PXA27X)||defined(CONFIG_USB_GADGET_PXA27X_MODULE)
 151 static struct gpio_vbus_mach_info colibri_pxa320_gpio_vbus_info = {
 152         .gpio_vbus              = mfp_to_gpio(MFP_PIN_GPIO96),
 153         .gpio_pullup            = -1,
 154 };
 155
 156 static struct platform_device colibri_pxa320_gpio_vbus = {
 157         .name   = "gpio-vbus",
 158         .id     = -1,
 159         .dev    = {
 160                 .platform_data  = &colibri_pxa320_gpio_vbus_info,
 161         },
 162 };
 163
 164 static void colibri_pxa320_udc_command(int cmd)
 165 {
 166         if (cmd == PXA2XX_UDC_CMD_CONNECT)
 167                 UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE;
 168         else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
 169                 UP2OCR = UP2OCR_HXOE;
 170 }
 171
 172 static struct pxa2xx_udc_mach_info colibri_pxa320_udc_info __initdata = {
 173         .udc_command            = colibri_pxa320_udc_command,
 174         .gpio_pullup            = -1,
 175 };
 176
 177 static void __init colibri_pxa320_init_udc(void)
 178 {
 179         pxa_set_udc_info(&colibri_pxa320_udc_info);
 180         platform_device_register(&colibri_pxa320_gpio_vbus);
 181 }
 182 #else
 183 static inline void colibri_pxa320_init_udc(void) {}
 184 #endif
 185
 186 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 187 static mfp_cfg_t colibri_pxa320_lcd_pin_config[] __initdata = {
 188         GPIO6_2_LCD_LDD_0,
 189         GPIO7_2_LCD_LDD_1,
 190         GPIO8_2_LCD_LDD_2,
 191         GPIO9_2_LCD_LDD_3,
 192         GPIO10_2_LCD_LDD_4,
 193         GPIO11_2_LCD_LDD_5,
 194         GPIO12_2_LCD_LDD_6,
 195         GPIO13_2_LCD_LDD_7,
 196         GPIO63_LCD_LDD_8,
 197         GPIO64_LCD_LDD_9,
 198         GPIO65_LCD_LDD_10,
 199         GPIO66_LCD_LDD_11,
 200         GPIO67_LCD_LDD_12,
 201         GPIO68_LCD_LDD_13,
 202         GPIO69_LCD_LDD_14,
 203         GPIO70_LCD_LDD_15,
 204         GPIO71_LCD_LDD_16,
 205         GPIO72_LCD_LDD_17,
 206         GPIO73_LCD_CS_N,
 207         GPIO74_LCD_VSYNC,
 208         GPIO14_2_LCD_FCLK,
 209         GPIO15_2_LCD_LCLK,
 210         GPIO16_2_LCD_PCLK,
 211         GPIO17_2_LCD_BIAS,
 212 };
 213
 214 static void __init colibri_pxa320_init_lcd(void)
 215 {
 216         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_lcd_pin_config));
 217 }
 218 #else
 219 static inline void colibri_pxa320_init_lcd(void) {}
 220 #endif
 221
 222 #if     defined(CONFIG_SND_AC97_CODEC) || \
 223         defined(CONFIG_SND_AC97_CODEC_MODULE)
 224 static mfp_cfg_t colibri_pxa320_ac97_pin_config[] __initdata = {
 225         GPIO34_AC97_SYSCLK,
 226         GPIO35_AC97_SDATA_IN_0,
 227         GPIO37_AC97_SDATA_OUT,
 228         GPIO38_AC97_SYNC,
 229         GPIO39_AC97_BITCLK,
 230         GPIO40_AC97_nACRESET
 231 };
 232
 233 static inline void __init colibri_pxa320_init_ac97(void)
 234 {
 235         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_ac97_pin_config));
 236         pxa_set_ac97_info(NULL);
 237 }
 238 #else
 239 static inline void colibri_pxa320_init_ac97(void) {}
 240 #endif
 241
 242 void __init colibri_pxa320_init(void)
 243 {
 244         colibri_pxa320_init_eth();
 245         colibri_pxa3xx_init_nand();
 246         colibri_pxa320_init_lcd();
 247         colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO49_GPIO));
 248         colibri_pxa320_init_ac97();
 249         colibri_pxa320_init_udc();
 250
 251         /* Evalboard init */
 252         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_evalboard_pin_config));
 253         colibri_evalboard_init();
 254 }
 255
 256 MACHINE_START(COLIBRI320, "Toradex Colibri PXA320")
 257         .boot_params    = COLIBRI_SDRAM_BASE + 0x100,
 258         .init_machine   = colibri_pxa320_init,
 259         .map_io         = pxa3xx_map_io,
 260         .init_irq       = pxa3xx_init_irq,
 261         .timer          = &pxa_timer,
 262 MACHINE_END
 263