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 #include <linux/serial.h>
  43 #include <linux/platform_data/macb.h>
  44
  45  /* USB Device */
  46 struct at91_udc_data {
  47         int     vbus_pin;               /* high == host powering us */
  48         u8      vbus_active_low;        /* vbus polarity */
  49         u8      vbus_polled;            /* Use polling, not interrupt */
  50         int     pullup_pin;             /* active == D+ pulled up */
  51         u8      pullup_active_low;      /* true == pullup_pin is active low */
  52 };
  53 extern void __init at91_add_device_udc(struct at91_udc_data *data);
  54
  55  /* USB High Speed Device */
  56 extern void __init at91_add_device_usba(struct usba_platform_data *data);
  57
  58  /* Compact Flash */
  59 struct at91_cf_data {
  60         int     irq_pin;                /* I/O IRQ */
  61         int     det_pin;                /* Card detect */
  62         int     vcc_pin;                /* power switching */
  63         int     rst_pin;                /* card reset */
  64         u8      chipselect;             /* EBI Chip Select number */
  65         u8      flags;
  66 #define AT91_CF_TRUE_IDE        0x01
  67 #define AT91_IDE_SWAP_A0_A2     0x02
  68 };
  69 extern void __init at91_add_device_cf(struct at91_cf_data *data);
  70
  71  /* MMC / SD */
  72   /* at91_mci platform config */
  73 struct at91_mmc_data {
  74         int             det_pin;        /* card detect IRQ */
  75         unsigned        slot_b:1;       /* uses Slot B */
  76         unsigned        wire4:1;        /* (SD) supports DAT0..DAT3 */
  77         int             wp_pin;         /* (SD) writeprotect detect */
  78         int             vcc_pin;        /* power switching (high == on) */
  79 };
  80 extern void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data);
  81
  82   /* atmel-mci platform config */
  83 extern void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data);
  84
  85 extern void __init at91_add_device_eth(struct macb_platform_data *data);
  86
  87  /* USB Host */
  88 struct at91_usbh_data {
  89         u8              ports;          /* number of ports on root hub */
  90         int             vbus_pin[2];    /* port power-control pin */
  91         u8              vbus_pin_active_low[2];
  92         u8              overcurrent_supported;
  93         int             overcurrent_pin[2];
  94         u8              overcurrent_status[2];
  95         u8              overcurrent_changed[2];
  96 };
  97 extern void __init at91_add_device_usbh(struct at91_usbh_data *data);
  98 extern void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data);
  99 extern void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data);
 100
 101  /* NAND / SmartMedia */
 102 struct atmel_nand_data {
 103         int             enable_pin;     /* chip enable */
 104         int             det_pin;        /* card detect */
 105         int             rdy_pin;        /* ready/busy */
 106         u8              rdy_pin_active_low;     /* rdy_pin value is inverted */
 107         u8              ale;            /* address line number connected to ALE */
 108         u8              cle;            /* address line number connected to CLE */
 109         u8              bus_width_16;   /* buswidth is 16 bit */
 110         struct mtd_partition *parts;
 111         unsigned int    num_parts;
 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 extern struct platform_device *atmel_default_console_device;
 137
 138 struct atmel_uart_data {
 139         int                     num;            /* port num */
 140         short                   use_dma_tx;     /* use transmit DMA? */
 141         short                   use_dma_rx;     /* use receive DMA? */
 142         void __iomem            *regs;          /* virt. base address, if any */
 143         struct serial_rs485     rs485;          /* rs485 settings */
 144 };
 145 extern void __init at91_add_device_serial(void);
 146
 147 /*
 148  * PWM
 149  */
 150 #define AT91_PWM0       0
 151 #define AT91_PWM1       1
 152 #define AT91_PWM2       2
 153 #define AT91_PWM3       3
 154
 155 extern void __init at91_add_device_pwm(u32 mask);
 156
 157 /*
 158  * SSC -- accessed through ssc_request(id).  Drivers don't bind to SSC
 159  * platform devices.  Their SSC ID is part of their configuration data,
 160  * along with information about which SSC signals they should use.
 161  */
 162 #define ATMEL_SSC_TK    0x01
 163 #define ATMEL_SSC_TF    0x02
 164 #define ATMEL_SSC_TD    0x04
 165 #define ATMEL_SSC_TX    (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD)
 166
 167 #define ATMEL_SSC_RK    0x10
 168 #define ATMEL_SSC_RF    0x20
 169 #define ATMEL_SSC_RD    0x40
 170 #define ATMEL_SSC_RX    (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD)
 171
 172 extern void __init at91_add_device_ssc(unsigned id, unsigned pins);
 173
 174  /* LCD Controller */
 175 struct atmel_lcdfb_info;
 176 extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data);
 177
 178  /* AC97 */
 179 extern void __init at91_add_device_ac97(struct ac97c_platform_data *data);
 180
 181  /* ISI */
 182 extern void __init at91_add_device_isi(void);
 183
 184  /* Touchscreen Controller */
 185 struct at91_tsadcc_data {
 186         unsigned int    adc_clock;
 187         u8              pendet_debounce;
 188         u8              ts_sample_hold_time;
 189 };
 190 extern void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data);
 191
 192 /* CAN */
 193 struct at91_can_data {
 194         void (*transceiver_switch)(int on);
 195 };
 196 extern void __init at91_add_device_can(struct at91_can_data *data);
 197
 198  /* LEDs */
 199 extern void __init at91_init_leds(u8 cpu_led, u8 timer_led);
 200 extern void __init at91_gpio_leds(struct gpio_led *leds, int nr);
 201 extern void __init at91_pwm_leds(struct gpio_led *leds, int nr);
 202
 203 /* FIXME: this needs a better location, but gets stuff building again */
 204 extern int at91_suspend_entering_slow_clock(void);
 205
 206 #endif