linux/arch/arm/mach-pxa/colibri-pxa320.c
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   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
  38static 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
  98static 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 */
 106static struct ax_plat_data colibri_asix_platdata = {
 107        .flags          = 0, /* defined later */
 108        .wordlength     = 2,
 109};
 110
 111static 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
 124static 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
 134static 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
 139static 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
 146static inline void __init colibri_pxa320_init_eth(void) {}
 147#endif /* CONFIG_AX88796 */
 148
 149#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)
 150static 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
 155static 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
 163static 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
 171static struct pxa2xx_udc_mach_info colibri_pxa320_udc_info __initdata = {
 172        .udc_command            = colibri_pxa320_udc_command,
 173        .gpio_pullup            = -1,
 174};
 175
 176static 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
 182static inline void colibri_pxa320_init_udc(void) {}
 183#endif
 184
 185#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 186static 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
 213static void __init colibri_pxa320_init_lcd(void)
 214{
 215        pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_lcd_pin_config));
 216}
 217#else
 218static inline void colibri_pxa320_init_lcd(void) {}
 219#endif
 220
 221#if     defined(CONFIG_SND_AC97_CODEC) || \
 222        defined(CONFIG_SND_AC97_CODEC_MODULE)
 223static 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
 232static 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
 238static inline void colibri_pxa320_init_ac97(void) {}
 239#endif
 240
 241void __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
 255MACHINE_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,
 264MACHINE_END
 265
 266