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 #include <linux/atmel-mci.h>
  41 #include <sound/atmel-ac97c.h>
  42
  43  /* USB Device */
  44 struct at91_udc_data {
  45         u8      vbus_pin;               /* high == host powering us */
  46         u8      pullup_pin;             /* active == D+ pulled up */
  47         u8      pullup_active_low;      /* true == pullup_pin is active low */
  48 };
  49 extern void __init at91_add_device_udc(struct at91_udc_data *data);
  50
  51  /* USB High Speed Device */
  52 extern void __init at91_add_device_usba(struct usba_platform_data *data);
  53
  54  /* Compact Flash */
  55 struct at91_cf_data {
  56         u8      irq_pin;                /* I/O IRQ */
  57         u8      det_pin;                /* Card detect */
  58         u8      vcc_pin;                /* power switching */
  59         u8      rst_pin;                /* card reset */
  60         u8      chipselect;             /* EBI Chip Select number */
  61         u8      flags;
  62 #define AT91_CF_TRUE_IDE        0x01
  63 #define AT91_IDE_SWAP_A0_A2     0x02
  64 };
  65 extern void __init at91_add_device_cf(struct at91_cf_data *data);
  66
  67  /* MMC / SD */
  68   /* at91_mci platform config */
  69 struct at91_mmc_data {
  70         u8              det_pin;        /* card detect IRQ */
  71         unsigned        slot_b:1;       /* uses Slot B */
  72         unsigned        wire4:1;        /* (SD) supports DAT0..DAT3 */
  73         u8              wp_pin;         /* (SD) writeprotect detect */
  74         u8              vcc_pin;        /* power switching (high == on) */
  75 };
  76 extern void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data);
  77
  78   /* atmel-mci platform config */
  79 extern void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data);
  80
  81  /* Ethernet (EMAC & MACB) */
  82 struct at91_eth_data {
  83         u32             phy_mask;
  84         u8              phy_irq_pin;    /* PHY IRQ */
  85         u8              is_rmii;        /* using RMII interface? */
  86 };
  87 extern void __init at91_add_device_eth(struct at91_eth_data *data);
  88
  89 #if defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9263) || defined(CONFIG_ARCH_AT91SAM9G20) || defined(CONFIG_ARCH_AT91CAP9) \
  90         || defined(CONFIG_ARCH_AT91SAM9G45)
  91 #define eth_platform_data       at91_eth_data
  92 #endif
  93
  94  /* USB Host */
  95 struct at91_usbh_data {
  96         u8              ports;          /* number of ports on root hub */
  97         u8              vbus_pin[2];    /* port power-control pin */
  98 };
  99 extern void __init at91_add_device_usbh(struct at91_usbh_data *data);
 100 extern void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data);
 101
 102  /* NAND / SmartMedia */
 103 struct atmel_nand_data {
 104         u8              enable_pin;     /* chip enable */
 105         u8              det_pin;        /* card detect */
 106         u8              rdy_pin;        /* ready/busy */
 107         u8              rdy_pin_active_low;     /* rdy_pin value is inverted */
 108         u8              ale;            /* address line number connected to ALE */
 109         u8              cle;            /* address line number connected to CLE */
 110         u8              bus_width_16;   /* buswidth is 16 bit */
 111         struct mtd_partition* (*partition_info)(int, int*);
 112 };
 113 extern void __init at91_add_device_nand(struct atmel_nand_data *data);
 114
 115  /* I2C*/
 116 #if defined(CONFIG_ARCH_AT91SAM9G45)
 117 extern void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, int nr_devices);
 118 #else
 119 extern void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices);
 120 #endif
 121
 122  /* SPI */
 123 extern void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices);
 124
 125  /* Serial */
 126 #define ATMEL_UART_CTS  0x01
 127 #define ATMEL_UART_RTS  0x02
 128 #define ATMEL_UART_DSR  0x04
 129 #define ATMEL_UART_DTR  0x08
 130 #define ATMEL_UART_DCD  0x10
 131 #define ATMEL_UART_RI   0x20
 132
 133 extern void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins);
 134 extern void __init at91_set_serial_console(unsigned portnr);
 135
 136 struct at91_uart_config {
 137         unsigned short  console_tty;    /* tty number of serial console */
 138         unsigned short  nr_tty;         /* number of serial tty's */
 139         short           tty_map[];      /* map UART to tty number */
 140 };
 141 extern struct platform_device *atmel_default_console_device;
 142 extern void __init __deprecated at91_init_serial(struct at91_uart_config *config);
 143
 144 struct atmel_uart_data {
 145         short           use_dma_tx;     /* use transmit DMA? */
 146         short           use_dma_rx;     /* use receive DMA? */
 147         void __iomem    *regs;          /* virtual base address, if any */
 148 };
 149 extern void __init at91_add_device_serial(void);
 150
 151 /*
 152  * PWM
 153  */
 154 #define AT91_PWM0       0
 155 #define AT91_PWM1       1
 156 #define AT91_PWM2       2
 157 #define AT91_PWM3       3
 158
 159 extern void __init at91_add_device_pwm(u32 mask);
 160
 161 /*
 162  * SSC -- accessed through ssc_request(id).  Drivers don't bind to SSC
 163  * platform devices.  Their SSC ID is part of their configuration data,
 164  * along with information about which SSC signals they should use.
 165  */
 166 #define ATMEL_SSC_TK    0x01
 167 #define ATMEL_SSC_TF    0x02
 168 #define ATMEL_SSC_TD    0x04
 169 #define ATMEL_SSC_TX    (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD)
 170
 171 #define ATMEL_SSC_RK    0x10
 172 #define ATMEL_SSC_RF    0x20
 173 #define ATMEL_SSC_RD    0x40
 174 #define ATMEL_SSC_RX    (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD)
 175
 176 extern void __init at91_add_device_ssc(unsigned id, unsigned pins);
 177
 178  /* LCD Controller */
 179 struct atmel_lcdfb_info;
 180 extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data);
 181
 182  /* AC97 */
 183 extern void __init at91_add_device_ac97(struct ac97c_platform_data *data);
 184
 185  /* ISI */
 186 extern void __init at91_add_device_isi(void);
 187
 188  /* Touchscreen Controller */
 189 extern void __init at91_add_device_tsadcc(void);
 190
 191 /* CAN */
 192 struct at91_can_data {
 193         void (*transceiver_switch)(int on);
 194 };
 195 extern void __init at91_add_device_can(struct at91_can_data *data);
 196
 197  /* LEDs */
 198 extern void __init at91_init_leds(u8 cpu_led, u8 timer_led);
 199 extern void __init at91_gpio_leds(struct gpio_led *leds, int nr);
 200 extern void __init at91_pwm_leds(struct gpio_led *leds, int nr);
 201
 202 /* FIXME: this needs a better location, but gets stuff building again */
 203 extern int at91_suspend_entering_slow_clock(void);
 204
 205 #endif