arch/arm/mach-at91/include/mach/board.h

   1 /*
   2  * arch/arm/mach-at91/include/mach/board.h
   3  *
   4  *  Copyright (C) 2005 HP Labs
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 /*
  22  * These are data structures found in platform_device.dev.platform_data,
  23  * and describing board-specific data needed by drivers.  For example,
  24  * which pin is used for a given GPIO role.
  25  *
  26  * In 2.6, drivers should strongly avoid board-specific knowledge so
  27  * that supporting new boards normally won't require driver patches.
  28  * Most board-specific knowledge should be in arch/.../board-*.c files.
  29  */
  30
  31 #ifndef __ASM_ARCH_BOARD_H
  32 #define __ASM_ARCH_BOARD_H
  33
  34 #include <linux/mtd/partitions.h>
  35 #include <linux/device.h>
  36 #include <linux/i2c.h>
  37 #include <linux/leds.h>
  38 #include <linux/spi/spi.h>
  39 #include <linux/usb/atmel_usba_udc.h>
  40
  41  /* USB Device */
  42 struct at91_udc_data {
  43         u8      vbus_pin;               /* high == host powering us */
  44         u8      pullup_pin;             /* active == D+ pulled up */
  45         u8      pullup_active_low;      /* true == pullup_pin is active low */
  46 };
  47 extern void __init at91_add_device_udc(struct at91_udc_data *data);
  48
  49  /* USB High Speed Device */
  50 extern void __init at91_add_device_usba(struct usba_platform_data *data);
  51
  52  /* Compact Flash */
  53 struct at91_cf_data {
  54         u8      irq_pin;                /* I/O IRQ */
  55         u8      det_pin;                /* Card detect */
  56         u8      vcc_pin;                /* power switching */
  57         u8      rst_pin;                /* card reset */
  58         u8      chipselect;             /* EBI Chip Select number */
  59 };
  60 extern void __init at91_add_device_cf(struct at91_cf_data *data);
  61
  62  /* MMC / SD */
  63 struct at91_mmc_data {
  64         u8              det_pin;        /* card detect IRQ */
  65         unsigned        slot_b:1;       /* uses Slot B */
  66         unsigned        wire4:1;        /* (SD) supports DAT0..DAT3 */
  67         u8              wp_pin;         /* (SD) writeprotect detect */
  68         u8              vcc_pin;        /* power switching (high == on) */
  69 };
  70 extern void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data);
  71
  72  /* Ethernet (EMAC & MACB) */
  73 struct at91_eth_data {
  74         u32             phy_mask;
  75         u8              phy_irq_pin;    /* PHY IRQ */
  76         u8              is_rmii;        /* using RMII interface? */
  77 };
  78 extern void __init at91_add_device_eth(struct at91_eth_data *data);
  79
  80 #if defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9263) || defined(CONFIG_ARCH_AT91SAM9G20) || defined(CONFIG_ARCH_AT91CAP9)
  81 #define eth_platform_data       at91_eth_data
  82 #endif
  83
  84  /* USB Host */
  85 struct at91_usbh_data {
  86         u8              ports;          /* number of ports on root hub */
  87         u8              vbus_pin[];     /* port power-control pin */
  88 };
  89 extern void __init at91_add_device_usbh(struct at91_usbh_data *data);
  90
  91  /* NAND / SmartMedia */
  92 struct atmel_nand_data {
  93         u8              enable_pin;     /* chip enable */
  94         u8              det_pin;        /* card detect */
  95         u8              rdy_pin;        /* ready/busy */
  96         u8              ale;            /* address line number connected to ALE */
  97         u8              cle;            /* address line number connected to CLE */
  98         u8              bus_width_16;   /* buswidth is 16 bit */
  99         struct mtd_partition* (*partition_info)(int, int*);
 100 };
 101 extern void __init at91_add_device_nand(struct atmel_nand_data *data);
 102
 103  /* I2C*/
 104 extern void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices);
 105
 106  /* SPI */
 107 extern void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices);
 108
 109  /* Serial */
 110 #if defined(CONFIG_SERIAL_ATMEL)
 111 extern struct platform_device *atmel_default_console_device;
 112
 113 struct atmel_uart_data {
 114         short           use_dma_tx;     /* use transmit DMA? */
 115         short           use_dma_rx;     /* use receive DMA? */
 116         void __iomem    *regs;          /* virtual base address, if any */
 117 };
 118
 119 extern void __init at91_add_device_serial(void);
 120
 121 extern const resource_size_t __initdata usart_base_addr[ATMEL_MAX_UART];
 122 extern const resource_size_t __initdata usart_id_addr[ATMEL_MAX_UART];
 123
 124 extern void configure_dbgu_pins(void) __init;
 125 extern void configure_usart0_pins(void) __init;
 126 extern void configure_usart1_pins(void) __init;
 127 extern void configure_usart2_pins(void) __init;
 128 extern void configure_usart3_pins(void) __init;
 129 extern void configure_usart4_pins(void) __init;
 130 extern void configure_usart5_pins(void) __init;
 131
 132 #endif
 133
 134 /*
 135  * SSC -- accessed through ssc_request(id).  Drivers don't bind to SSC
 136  * platform devices.  Their SSC ID is part of their configuration data,
 137  * along with information about which SSC signals they should use.
 138  */
 139 #define ATMEL_SSC_TK    0x01
 140 #define ATMEL_SSC_TF    0x02
 141 #define ATMEL_SSC_TD    0x04
 142 #define ATMEL_SSC_TX    (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD)
 143
 144 #define ATMEL_SSC_RK    0x10
 145 #define ATMEL_SSC_RF    0x20
 146 #define ATMEL_SSC_RD    0x40
 147 #define ATMEL_SSC_RX    (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD)
 148
 149 extern void __init at91_add_device_ssc(unsigned id, unsigned pins);
 150
 151  /* LCD Controller */
 152 struct atmel_lcdfb_info;
 153 extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data);
 154
 155  /* AC97 */
 156 struct atmel_ac97_data {
 157         u8              reset_pin;      /* reset */
 158 };
 159 extern void __init at91_add_device_ac97(struct atmel_ac97_data *data);
 160
 161  /* ISI */
 162 extern void __init at91_add_device_isi(void);
 163
 164  /* LEDs */
 165 extern void __init at91_init_leds(u8 cpu_led, u8 timer_led);
 166 extern void __init at91_gpio_leds(struct gpio_led *leds, int nr);
 167
 168 /* FIXME: this needs a better location, but gets stuff building again */
 169 extern int at91_suspend_entering_slow_clock(void);
 170
 171 #endif