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 207