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
  20 #include <asm/mach-types.h>
  21 #include <asm/sizes.h>
  22 #include <asm/mach/arch.h>
  23 #include <asm/mach/irq.h>
  24
  25 #include <mach/pxa3xx-regs.h>
  26 #include <mach/mfp-pxa320.h>
  27 #include <mach/colibri.h>
  28 #include <mach/pxafb.h>
  29 #include <mach/ohci.h>
  30 #include <mach/audio.h>
  31
  32 #include "generic.h"
  33 #include "devices.h"
  34
  35 #if defined(CONFIG_AX88796)
  36 #define COLIBRI_ETH_IRQ_GPIO    mfp_to_gpio(GPIO36_GPIO)
  37
  38 /*
  39  * Asix AX88796 Ethernet
  40  */
  41 static struct ax_plat_data colibri_asix_platdata = {
  42         .flags          = 0, /* defined later */
  43         .wordlength     = 2,
  44 };
  45
  46 static struct resource colibri_asix_resource[] = {
  47         [0] = {
  48                 .start = PXA3xx_CS2_PHYS,
  49                 .end   = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
  50                 .flags = IORESOURCE_MEM,
  51         },
  52         [1] = {
  53                 .start = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
  54                 .end   = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
  55                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
  56         }
  57 };
  58
  59 static struct platform_device asix_device = {
  60         .name           = "ax88796",
  61         .id             = 0,
  62         .num_resources  = ARRAY_SIZE(colibri_asix_resource),
  63         .resource       = colibri_asix_resource,
  64         .dev            = {
  65                 .platform_data = &colibri_asix_platdata
  66         }
  67 };
  68
  69 static mfp_cfg_t colibri_pxa320_eth_pin_config[] __initdata = {
  70         GPIO3_nCS2,                     /* AX88796 chip select */
  71         GPIO36_GPIO | MFP_PULL_HIGH     /* AX88796 IRQ */
  72 };
  73
  74 static void __init colibri_pxa320_init_eth(void)
  75 {
  76         colibri_pxa3xx_init_eth(&colibri_asix_platdata);
  77         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_eth_pin_config));
  78         platform_device_register(&asix_device);
  79 }
  80 #else
  81 static inline void __init colibri_pxa320_init_eth(void) {}
  82 #endif /* CONFIG_AX88796 */
  83
  84 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  85 static mfp_cfg_t colibri_pxa320_usb_pin_config[] __initdata = {
  86         GPIO2_2_USBH_PEN,
  87         GPIO3_2_USBH_PWR,
  88 };
  89
  90 static struct pxaohci_platform_data colibri_pxa320_ohci_info = {
  91         .port_mode      = PMM_GLOBAL_MODE,
  92         .flags          = ENABLE_PORT1 | POWER_CONTROL_LOW | POWER_SENSE_LOW,
  93 };
  94
  95 void __init colibri_pxa320_init_ohci(void)
  96 {
  97         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_usb_pin_config));
  98         pxa_set_ohci_info(&colibri_pxa320_ohci_info);
  99 }
 100 #else
 101 static inline void colibri_pxa320_init_ohci(void) {}
 102 #endif /* CONFIG_USB_OHCI_HCD || CONFIG_USB_OHCI_HCD_MODULE */
 103
 104 static mfp_cfg_t colibri_pxa320_mmc_pin_config[] __initdata = {
 105         GPIO22_MMC1_CLK,
 106         GPIO23_MMC1_CMD,
 107         GPIO18_MMC1_DAT0,
 108         GPIO19_MMC1_DAT1,
 109         GPIO20_MMC1_DAT2,
 110         GPIO21_MMC1_DAT3
 111 };
 112
 113 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 114 static mfp_cfg_t colibri_pxa320_lcd_pin_config[] __initdata = {
 115         GPIO6_2_LCD_LDD_0,
 116         GPIO7_2_LCD_LDD_1,
 117         GPIO8_2_LCD_LDD_2,
 118         GPIO9_2_LCD_LDD_3,
 119         GPIO10_2_LCD_LDD_4,
 120         GPIO11_2_LCD_LDD_5,
 121         GPIO12_2_LCD_LDD_6,
 122         GPIO13_2_LCD_LDD_7,
 123         GPIO63_LCD_LDD_8,
 124         GPIO64_LCD_LDD_9,
 125         GPIO65_LCD_LDD_10,
 126         GPIO66_LCD_LDD_11,
 127         GPIO67_LCD_LDD_12,
 128         GPIO68_LCD_LDD_13,
 129         GPIO69_LCD_LDD_14,
 130         GPIO70_LCD_LDD_15,
 131         GPIO71_LCD_LDD_16,
 132         GPIO72_LCD_LDD_17,
 133         GPIO73_LCD_CS_N,
 134         GPIO74_LCD_VSYNC,
 135         GPIO14_2_LCD_FCLK,
 136         GPIO15_2_LCD_LCLK,
 137         GPIO16_2_LCD_PCLK,
 138         GPIO17_2_LCD_BIAS,
 139 };
 140
 141 static void __init colibri_pxa320_init_lcd(void)
 142 {
 143         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_lcd_pin_config));
 144 }
 145 #else
 146 static inline void colibri_pxa320_init_lcd(void) {}
 147 #endif
 148
 149 #if     defined(CONFIG_SND_AC97_CODEC) || \
 150         defined(CONFIG_SND_AC97_CODEC_MODULE)
 151 static mfp_cfg_t colibri_pxa320_ac97_pin_config[] __initdata = {
 152         GPIO34_AC97_SYSCLK,
 153         GPIO35_AC97_SDATA_IN_0,
 154         GPIO37_AC97_SDATA_OUT,
 155         GPIO38_AC97_SYNC,
 156         GPIO39_AC97_BITCLK,
 157         GPIO40_AC97_nACRESET
 158 };
 159
 160 static inline void __init colibri_pxa320_init_ac97(void)
 161 {
 162         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_ac97_pin_config));
 163         pxa_set_ac97_info(NULL);
 164 }
 165 #else
 166 static inline void colibri_pxa320_init_ac97(void) {}
 167 #endif
 168
 169 /*
 170  * The following configuration is verified to work with the Toradex Orchid
 171  * carrier board
 172  */
 173 static mfp_cfg_t colibri_pxa320_uart_pin_config[] __initdata = {
 174         /* UART 1 configuration (may be set by bootloader) */
 175         GPIO99_UART1_CTS,
 176         GPIO104_UART1_RTS,
 177         GPIO97_UART1_RXD,
 178         GPIO98_UART1_TXD,
 179         GPIO101_UART1_DTR,
 180         GPIO103_UART1_DSR,
 181         GPIO100_UART1_DCD,
 182         GPIO102_UART1_RI,
 183
 184         /* UART 2 configuration */
 185         GPIO109_UART2_CTS,
 186         GPIO112_UART2_RTS,
 187         GPIO110_UART2_RXD,
 188         GPIO111_UART2_TXD,
 189
 190         /* UART 3 configuration */
 191         GPIO30_UART3_RXD,
 192         GPIO31_UART3_TXD,
 193 };
 194
 195 static void __init colibri_pxa320_init_uart(void)
 196 {
 197         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_uart_pin_config));
 198 }
 199
 200 void __init colibri_pxa320_init(void)
 201 {
 202         colibri_pxa320_init_eth();
 203         colibri_pxa320_init_ohci();
 204         colibri_pxa3xx_init_nand();
 205         colibri_pxa320_init_lcd();
 206         colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO49_GPIO));
 207         colibri_pxa320_init_ac97();
 208         colibri_pxa3xx_init_mmc(ARRAY_AND_SIZE(colibri_pxa320_mmc_pin_config),
 209                                 mfp_to_gpio(MFP_PIN_GPIO28));
 210         colibri_pxa320_init_uart();
 211 }
 212
 213 MACHINE_START(COLIBRI320, "Toradex Colibri PXA320")
 214         .phys_io        = 0x40000000,
 215         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 216         .boot_params    = COLIBRI_SDRAM_BASE + 0x100,
 217         .init_machine   = colibri_pxa320_init,
 218         .map_io         = pxa_map_io,
 219         .init_irq       = pxa3xx_init_irq,
 220         .timer          = &pxa_timer,
 221 MACHINE_END
 222