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 "pxa320.h"
  27 #include "colibri.h"
  28 #include <linux/platform_data/video-pxafb.h>
  29 #include <linux/platform_data/usb-ohci-pxa27x.h>
  30 #include <mach/audio.h>
  31 #include "pxa27x-udc.h"
  32 #include "udc.h"
  33
  34 #include "generic.h"
  35 #include "devices.h"
  36
  37 #ifdef  CONFIG_MACH_COLIBRI_EVALBOARD
  38 static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {
  39         /* MMC */
  40         GPIO22_MMC1_CLK,
  41         GPIO23_MMC1_CMD,
  42         GPIO18_MMC1_DAT0,
  43         GPIO19_MMC1_DAT1,
  44         GPIO20_MMC1_DAT2,
  45         GPIO21_MMC1_DAT3,
  46         GPIO28_GPIO,    /* SD detect */
  47
  48         /* UART 1 configuration (may be set by bootloader) */
  49         GPIO99_UART1_CTS,
  50         GPIO104_UART1_RTS,
  51         GPIO97_UART1_RXD,
  52         GPIO98_UART1_TXD,
  53         GPIO101_UART1_DTR,
  54         GPIO103_UART1_DSR,
  55         GPIO100_UART1_DCD,
  56         GPIO102_UART1_RI,
  57
  58         /* UART 2 configuration */
  59         GPIO109_UART2_CTS,
  60         GPIO112_UART2_RTS,
  61         GPIO110_UART2_RXD,
  62         GPIO111_UART2_TXD,
  63
  64         /* UART 3 configuration */
  65         GPIO30_UART3_RXD,
  66         GPIO31_UART3_TXD,
  67
  68         /* UHC */
  69         GPIO2_2_USBH_PEN,
  70         GPIO3_2_USBH_PWR,
  71
  72         /* I2C */
  73         GPIO32_I2C_SCL,
  74         GPIO33_I2C_SDA,
  75
  76         /* PCMCIA */
  77         MFP_CFG(GPIO59, AF7),   /* PRST ; AF7 to tristate */
  78         MFP_CFG(GPIO61, AF7),   /* PCE1 ; AF7 to tristate */
  79         MFP_CFG(GPIO60, AF7),   /* PCE2 ; AF7 to tristate */
  80         MFP_CFG(GPIO62, AF7),   /* PCD ; AF7 to tristate */
  81         MFP_CFG(GPIO56, AF7),   /* PSKTSEL ; AF7 to tristate */
  82         GPIO27_GPIO,            /* RDnWR ; input/tristate */
  83         GPIO50_GPIO,            /* PREG ; input/tristate */
  84         GPIO2_RDY,
  85         GPIO5_NPIOR,
  86         GPIO6_NPIOW,
  87         GPIO7_NPIOS16,
  88         GPIO8_NPWAIT,
  89         GPIO29_GPIO,            /* PRDY (READY GPIO) */
  90         GPIO57_GPIO,            /* PPEN (POWER GPIO) */
  91         GPIO81_GPIO,            /* PCD (DETECT GPIO) */
  92         GPIO77_GPIO,            /* PRST (RESET GPIO) */
  93         GPIO53_GPIO,            /* PBVD1 */
  94         GPIO79_GPIO,            /* PBVD2 */
  95         GPIO54_GPIO,            /* POE */
  96 };
  97 #else
  98 static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {};
  99 #endif
 100
 101 #if defined(CONFIG_AX88796)
 102 #define COLIBRI_ETH_IRQ_GPIO    mfp_to_gpio(GPIO36_GPIO)
 103 /*
 104  * Asix AX88796 Ethernet
 105  */
 106 static struct ax_plat_data colibri_asix_platdata = {
 107         .flags          = 0, /* defined later */
 108         .wordlength     = 2,
 109 };
 110
 111 static struct resource colibri_asix_resource[] = {
 112         [0] = {
 113                 .start = PXA3xx_CS2_PHYS,
 114                 .end   = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
 115                 .flags = IORESOURCE_MEM,
 116         },
 117         [1] = {
 118                 .start = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
 119                 .end   = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
 120                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
 121         }
 122 };
 123
 124 static struct platform_device asix_device = {
 125         .name           = "ax88796",
 126         .id             = 0,
 127         .num_resources  = ARRAY_SIZE(colibri_asix_resource),
 128         .resource       = colibri_asix_resource,
 129         .dev            = {
 130                 .platform_data = &colibri_asix_platdata
 131         }
 132 };
 133
 134 static mfp_cfg_t colibri_pxa320_eth_pin_config[] __initdata = {
 135         GPIO3_nCS2,                     /* AX88796 chip select */
 136         GPIO36_GPIO | MFP_PULL_HIGH     /* AX88796 IRQ */
 137 };
 138
 139 static void __init colibri_pxa320_init_eth(void)
 140 {
 141         colibri_pxa3xx_init_eth(&colibri_asix_platdata);
 142         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_eth_pin_config));
 143         platform_device_register(&asix_device);
 144 }
 145 #else
 146 static inline void __init colibri_pxa320_init_eth(void) {}
 147 #endif /* CONFIG_AX88796 */
 148
 149 #if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)
 150 static struct gpio_vbus_mach_info colibri_pxa320_gpio_vbus_info = {
 151         .gpio_vbus              = mfp_to_gpio(MFP_PIN_GPIO96),
 152         .gpio_pullup            = -1,
 153 };
 154
 155 static struct platform_device colibri_pxa320_gpio_vbus = {
 156         .name   = "gpio-vbus",
 157         .id     = -1,
 158         .dev    = {
 159                 .platform_data  = &colibri_pxa320_gpio_vbus_info,
 160         },
 161 };
 162
 163 static void colibri_pxa320_udc_command(int cmd)
 164 {
 165         if (cmd == PXA2XX_UDC_CMD_CONNECT)
 166                 UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE;
 167         else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
 168                 UP2OCR = UP2OCR_HXOE;
 169 }
 170
 171 static struct pxa2xx_udc_mach_info colibri_pxa320_udc_info __initdata = {
 172         .udc_command            = colibri_pxa320_udc_command,
 173         .gpio_pullup            = -1,
 174 };
 175
 176 static void __init colibri_pxa320_init_udc(void)
 177 {
 178         pxa_set_udc_info(&colibri_pxa320_udc_info);
 179         platform_device_register(&colibri_pxa320_gpio_vbus);
 180 }
 181 #else
 182 static inline void colibri_pxa320_init_udc(void) {}
 183 #endif
 184
 185 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 186 static mfp_cfg_t colibri_pxa320_lcd_pin_config[] __initdata = {
 187         GPIO6_2_LCD_LDD_0,
 188         GPIO7_2_LCD_LDD_1,
 189         GPIO8_2_LCD_LDD_2,
 190         GPIO9_2_LCD_LDD_3,
 191         GPIO10_2_LCD_LDD_4,
 192         GPIO11_2_LCD_LDD_5,
 193         GPIO12_2_LCD_LDD_6,
 194         GPIO13_2_LCD_LDD_7,
 195         GPIO63_LCD_LDD_8,
 196         GPIO64_LCD_LDD_9,
 197         GPIO65_LCD_LDD_10,
 198         GPIO66_LCD_LDD_11,
 199         GPIO67_LCD_LDD_12,
 200         GPIO68_LCD_LDD_13,
 201         GPIO69_LCD_LDD_14,
 202         GPIO70_LCD_LDD_15,
 203         GPIO71_LCD_LDD_16,
 204         GPIO72_LCD_LDD_17,
 205         GPIO73_LCD_CS_N,
 206         GPIO74_LCD_VSYNC,
 207         GPIO14_2_LCD_FCLK,
 208         GPIO15_2_LCD_LCLK,
 209         GPIO16_2_LCD_PCLK,
 210         GPIO17_2_LCD_BIAS,
 211 };
 212
 213 static void __init colibri_pxa320_init_lcd(void)
 214 {
 215         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_lcd_pin_config));
 216 }
 217 #else
 218 static inline void colibri_pxa320_init_lcd(void) {}
 219 #endif
 220
 221 #if     defined(CONFIG_SND_AC97_CODEC) || \
 222         defined(CONFIG_SND_AC97_CODEC_MODULE)
 223 static mfp_cfg_t colibri_pxa320_ac97_pin_config[] __initdata = {
 224         GPIO34_AC97_SYSCLK,
 225         GPIO35_AC97_SDATA_IN_0,
 226         GPIO37_AC97_SDATA_OUT,
 227         GPIO38_AC97_SYNC,
 228         GPIO39_AC97_BITCLK,
 229         GPIO40_AC97_nACRESET
 230 };
 231
 232 static inline void __init colibri_pxa320_init_ac97(void)
 233 {
 234         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_ac97_pin_config));
 235         pxa_set_ac97_info(NULL);
 236 }
 237 #else
 238 static inline void colibri_pxa320_init_ac97(void) {}
 239 #endif
 240
 241 void __init colibri_pxa320_init(void)
 242 {
 243         colibri_pxa320_init_eth();
 244         colibri_pxa3xx_init_nand();
 245         colibri_pxa320_init_lcd();
 246         colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO49_GPIO));
 247         colibri_pxa320_init_ac97();
 248         colibri_pxa320_init_udc();
 249
 250         /* Evalboard init */
 251         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_evalboard_pin_config));
 252         colibri_evalboard_init();
 253 }
 254
 255 MACHINE_START(COLIBRI320, "Toradex Colibri PXA320")
 256         .atag_offset    = 0x100,
 257         .init_machine   = colibri_pxa320_init,
 258         .map_io         = pxa3xx_map_io,
 259         .nr_irqs        = PXA_NR_IRQS,
 260         .init_irq       = pxa3xx_init_irq,
 261         .handle_irq     = pxa3xx_handle_irq,
 262         .init_time      = pxa_timer_init,
 263         .restart        = pxa_restart,
 264 MACHINE_END
 265