board.h

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/*
 * arch/arm/mach-at91/include/mach/board.h
 *
 *  Copyright (C) 2005 HP Labs
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/*
 * These are data structures found in platform_device.dev.platform_data,
 * and describing board-specific data needed by drivers.  For example,
 * which pin is used for a given GPIO role.
 *
 * In 2.6, drivers should strongly avoid board-specific knowledge so
 * that supporting new boards normally won't require driver patches.
 * Most board-specific knowledge should be in arch/.../board-*.c files.
 */

#ifndef __ASM_ARCH_BOARD_H
#define __ASM_ARCH_BOARD_H

#include <linux/mtd/partitions.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/leds.h>
#include <linux/spi/spi.h>
#include <linux/usb/atmel_usba_udc.h>
#include <linux/atmel-mci.h>
#include <sound/atmel-ac97c.h>
#include <linux/serial.h>
#include <linux/platform_data/macb.h>
#include <linux/platform_data/atmel.h>

 /* USB Device */
struct at91_udc_data {
    int vbus_pin;       /* high == host powering us */
    u8  vbus_active_low;    /* vbus polarity */
    u8  vbus_polled;        /* Use polling, not interrupt */
    int pullup_pin;     /* active == D+ pulled up */
    u8  pullup_active_low;  /* true == pullup_pin is active low */
};
extern void __init at91_add_device_udc(struct at91_udc_data *data);

 /* USB High Speed Device */
extern void __init at91_add_device_usba(struct usba_platform_data *data);

 /* Compact Flash */
struct at91_cf_data {
    int irq_pin;        /* I/O IRQ */
    int det_pin;        /* Card detect */
    int vcc_pin;        /* power switching */
    int rst_pin;        /* card reset */
    u8  chipselect;     /* EBI Chip Select number */
    u8  flags;
#define AT91_CF_TRUE_IDE    0x01
#define AT91_IDE_SWAP_A0_A2 0x02
};
extern void __init at91_add_device_cf(struct at91_cf_data *data);

 /* MMC / SD */
  /* at91_mci platform config */
struct at91_mmc_data {
    int     det_pin;    /* card detect IRQ */
    unsigned    slot_b:1;   /* uses Slot B */
    unsigned    wire4:1;    /* (SD) supports DAT0..DAT3 */
    int     wp_pin;     /* (SD) writeprotect detect */
    int     vcc_pin;    /* power switching (high == on) */
};
extern void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data);

  /* atmel-mci platform config */
extern void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data);

extern void __init at91_add_device_eth(struct macb_platform_data *data);

 /* USB Host */
#define AT91_MAX_USBH_PORTS 3
struct at91_usbh_data {
    int     vbus_pin[AT91_MAX_USBH_PORTS];  /* port power-control pin */
    int             overcurrent_pin[AT91_MAX_USBH_PORTS];
    u8      ports;              /* number of ports on root hub */
    u8              overcurrent_supported;
    u8              vbus_pin_active_low[AT91_MAX_USBH_PORTS];
    u8              overcurrent_status[AT91_MAX_USBH_PORTS];
    u8              overcurrent_changed[AT91_MAX_USBH_PORTS];
};
extern void __init at91_add_device_usbh(struct at91_usbh_data *data);
extern void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data);
extern void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data);

extern void __init at91_add_device_nand(struct atmel_nand_data *data);

 /* I2C*/
#if defined(CONFIG_ARCH_AT91SAM9G45)
extern void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, int nr_devices);
#else
extern void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices);
#endif

 /* SPI */
extern void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices);

 /* Serial */
#define ATMEL_UART_CTS  0x01
#define ATMEL_UART_RTS  0x02
#define ATMEL_UART_DSR  0x04
#define ATMEL_UART_DTR  0x08
#define ATMEL_UART_DCD  0x10
#define ATMEL_UART_RI   0x20

extern void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins);

extern struct platform_device *atmel_default_console_device;

struct atmel_uart_data {
    int         num;        /* port num */
    short           use_dma_tx; /* use transmit DMA? */
    short           use_dma_rx; /* use receive DMA? */
    void __iomem        *regs;      /* virt. base address, if any */
    struct serial_rs485 rs485;      /* rs485 settings */
};
extern void __init at91_add_device_serial(void);

/*
 * PWM
 */
#define AT91_PWM0   0
#define AT91_PWM1   1
#define AT91_PWM2   2
#define AT91_PWM3   3

extern void __init at91_add_device_pwm(u32 mask);

/*
 * SSC -- accessed through ssc_request(id).  Drivers don't bind to SSC
 * platform devices.  Their SSC ID is part of their configuration data,
 * along with information about which SSC signals they should use.
 */
#define ATMEL_SSC_TK    0x01
#define ATMEL_SSC_TF    0x02
#define ATMEL_SSC_TD    0x04
#define ATMEL_SSC_TX    (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD)

#define ATMEL_SSC_RK    0x10
#define ATMEL_SSC_RF    0x20
#define ATMEL_SSC_RD    0x40
#define ATMEL_SSC_RX    (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD)

extern void __init at91_add_device_ssc(unsigned id, unsigned pins);

 /* LCD Controller */
struct atmel_lcdfb_info;
extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data);

 /* AC97 */
extern void __init at91_add_device_ac97(struct ac97c_platform_data *data);

 /* ISI */
struct isi_platform_data;
extern void __init at91_add_device_isi(struct isi_platform_data *data,
        bool use_pck_as_mck);

 /* Touchscreen Controller */
struct at91_tsadcc_data {
    unsigned int    adc_clock;
    u8      pendet_debounce;
    u8      ts_sample_hold_time;
};
extern void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data);

/* CAN */
struct at91_can_data {
    void (*transceiver_switch)(int on);
};
extern void __init at91_add_device_can(struct at91_can_data *data);

 /* LEDs */
extern void __init at91_gpio_leds(struct gpio_led *leds, int nr);
extern void __init at91_pwm_leds(struct gpio_led *leds, int nr);

/* FIXME: this needs a better location, but gets stuff building again */
extern int at91_suspend_entering_slow_clock(void);

#endif