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 u8 flags; 60 #define AT91_CF_TRUE_IDE 0x01 61 #define AT91_IDE_SWAP_A0_A2 0x02 62 }; 63 extern void __init at91_add_device_cf(struct at91_cf_data *data); 64 65 /* MMC / SD */ 66 struct at91_mmc_data { 67 u8 det_pin; /* card detect IRQ */ 68 unsigned slot_b:1; /* uses Slot B */ 69 unsigned wire4:1; /* (SD) supports DAT0..DAT3 */ 70 u8 wp_pin; /* (SD) writeprotect detect */ 71 u8 vcc_pin; /* power switching (high == on) */ 72 }; 73 extern void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data); 74 75 /* Ethernet (EMAC & MACB) */ 76 struct at91_eth_data { 77 u32 phy_mask; 78 u8 phy_irq_pin; /* PHY IRQ */ 79 u8 is_rmii; /* using RMII interface? */ 80 }; 81 extern void __init at91_add_device_eth(struct at91_eth_data *data); 82 83 #if defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9263) || defined(CONFIG_ARCH_AT91SAM9G20) || defined(CONFIG_ARCH_AT91CAP9) 84 #define eth_platform_data at91_eth_data 85 #endif 86 87 /* USB Host */ 88 struct at91_usbh_data { 89 u8 ports; /* number of ports on root hub */ 90 u8 vbus_pin[]; /* port power-control pin */ 91 }; 92 extern void __init at91_add_device_usbh(struct at91_usbh_data *data); 93 94 /* NAND / SmartMedia */ 95 struct atmel_nand_data { 96 u8 enable_pin; /* chip enable */ 97 u8 det_pin; /* card detect */ 98 u8 rdy_pin; /* ready/busy */ 99 u8 rdy_pin_active_low; /* rdy_pin value is inverted */ 100 u8 ale; /* address line number connected to ALE */ 101 u8 cle; /* address line number connected to CLE */ 102 u8 bus_width_16; /* buswidth is 16 bit */ 103 struct mtd_partition* (*partition_info)(int, int*); 104 }; 105 extern void __init at91_add_device_nand(struct atmel_nand_data *data); 106 107 /* I2C*/ 108 extern void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices); 109 110 /* SPI */ 111 extern void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices); 112 113 /* Serial */ 114 #define ATMEL_UART_CTS 0x01 115 #define ATMEL_UART_RTS 0x02 116 #define ATMEL_UART_DSR 0x04 117 #define ATMEL_UART_DTR 0x08 118 #define ATMEL_UART_DCD 0x10 119 #define ATMEL_UART_RI 0x20 120 121 extern void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins); 122 extern void __init at91_set_serial_console(unsigned portnr); 123 124 struct at91_uart_config { 125 unsigned short console_tty; /* tty number of serial console */ 126 unsigned short nr_tty; /* number of serial tty's */ 127 short tty_map[]; /* map UART to tty number */ 128 }; 129 extern struct platform_device *atmel_default_console_device; 130 extern void __init __deprecated at91_init_serial(struct at91_uart_config *config); 131 132 struct atmel_uart_data { 133 short use_dma_tx; /* use transmit DMA? */ 134 short use_dma_rx; /* use receive DMA? */ 135 void __iomem *regs; /* virtual base address, if any */ 136 }; 137 extern void __init at91_add_device_serial(void); 138 139 /* 140 * PWM 141 */ 142 #define AT91_PWM0 0 143 #define AT91_PWM1 1 144 #define AT91_PWM2 2 145 #define AT91_PWM3 3 146 147 extern void __init at91_add_device_pwm(u32 mask); 148 149 /* 150 * SSC -- accessed through ssc_request(id). Drivers don't bind to SSC 151 * platform devices. Their SSC ID is part of their configuration data, 152 * along with information about which SSC signals they should use. 153 */ 154 #define ATMEL_SSC_TK 0x01 155 #define ATMEL_SSC_TF 0x02 156 #define ATMEL_SSC_TD 0x04 157 #define ATMEL_SSC_TX (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD) 158 159 #define ATMEL_SSC_RK 0x10 160 #define ATMEL_SSC_RF 0x20 161 #define ATMEL_SSC_RD 0x40 162 #define ATMEL_SSC_RX (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD) 163 164 extern void __init at91_add_device_ssc(unsigned id, unsigned pins); 165 166 /* LCD Controller */ 167 struct atmel_lcdfb_info; 168 extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data); 169 170 /* AC97 */ 171 struct atmel_ac97_data { 172 u8 reset_pin; /* reset */ 173 }; 174 extern void __init at91_add_device_ac97(struct atmel_ac97_data *data); 175 176 /* ISI */ 177 extern void __init at91_add_device_isi(void); 178 179 /* Touchscreen Controller */ 180 extern void __init at91_add_device_tsadcc(void); 181 182 /* LEDs */ 183 extern void __init at91_init_leds(u8 cpu_led, u8 timer_led); 184 extern void __init at91_gpio_leds(struct gpio_led *leds, int nr); 185 extern void __init at91_pwm_leds(struct gpio_led *leds, int nr); 186 187 /* FIXME: this needs a better location, but gets stuff building again */ 188 extern int at91_suspend_entering_slow_clock(void); 189 190 #endif 191