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 #include <linux/platform_data/atmel.h> 45 46 /* USB Device */ 47 struct at91_udc_data { 48 int vbus_pin; /* high == host powering us */ 49 u8 vbus_active_low; /* vbus polarity */ 50 u8 vbus_polled; /* Use polling, not interrupt */ 51 int pullup_pin; /* active == D+ pulled up */ 52 u8 pullup_active_low; /* true == pullup_pin is active low */ 53 }; 54 extern void __init at91_add_device_udc(struct at91_udc_data *data); 55 56 /* USB High Speed Device */ 57 extern void __init at91_add_device_usba(struct usba_platform_data *data); 58 59 /* Compact Flash */ 60 struct at91_cf_data { 61 int irq_pin; /* I/O IRQ */ 62 int det_pin; /* Card detect */ 63 int vcc_pin; /* power switching */ 64 int rst_pin; /* card reset */ 65 u8 chipselect; /* EBI Chip Select number */ 66 u8 flags; 67 #define AT91_CF_TRUE_IDE 0x01 68 #define AT91_IDE_SWAP_A0_A2 0x02 69 }; 70 extern void __init at91_add_device_cf(struct at91_cf_data *data); 71 72 /* MMC / SD */ 73 /* at91_mci platform config */ 74 struct at91_mmc_data { 75 int det_pin; /* card detect IRQ */ 76 unsigned slot_b:1; /* uses Slot B */ 77 unsigned wire4:1; /* (SD) supports DAT0..DAT3 */ 78 int wp_pin; /* (SD) writeprotect detect */ 79 int vcc_pin; /* power switching (high == on) */ 80 }; 81 extern void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data); 82 83 /* atmel-mci platform config */ 84 extern void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data); 85 86 extern void __init at91_add_device_eth(struct macb_platform_data *data); 87 88 /* USB Host */ 89 #define AT91_MAX_USBH_PORTS 3 90 struct at91_usbh_data { 91 int vbus_pin[AT91_MAX_USBH_PORTS]; /* port power-control pin */ 92 int overcurrent_pin[AT91_MAX_USBH_PORTS]; 93 u8 ports; /* number of ports on root hub */ 94 u8 overcurrent_supported; 95 u8 vbus_pin_active_low[AT91_MAX_USBH_PORTS]; 96 u8 overcurrent_status[AT91_MAX_USBH_PORTS]; 97 u8 overcurrent_changed[AT91_MAX_USBH_PORTS]; 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 extern void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data); 102 103 extern void __init at91_add_device_nand(struct atmel_nand_data *data); 104 105 /* I2C*/ 106 #if defined(CONFIG_ARCH_AT91SAM9G45) 107 extern void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, int nr_devices); 108 #else 109 extern void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices); 110 #endif 111 112 /* SPI */ 113 extern void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices); 114 115 /* Serial */ 116 #define ATMEL_UART_CTS 0x01 117 #define ATMEL_UART_RTS 0x02 118 #define ATMEL_UART_DSR 0x04 119 #define ATMEL_UART_DTR 0x08 120 #define ATMEL_UART_DCD 0x10 121 #define ATMEL_UART_RI 0x20 122 123 extern void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins); 124 extern void __init at91_set_serial_console(unsigned portnr); 125 126 extern struct platform_device *atmel_default_console_device; 127 128 struct atmel_uart_data { 129 int num; /* port num */ 130 short use_dma_tx; /* use transmit DMA? */ 131 short use_dma_rx; /* use receive DMA? */ 132 void __iomem *regs; /* virt. base address, if any */ 133 struct serial_rs485 rs485; /* rs485 settings */ 134 }; 135 extern void __init at91_add_device_serial(void); 136 137 /* 138 * PWM 139 */ 140 #define AT91_PWM0 0 141 #define AT91_PWM1 1 142 #define AT91_PWM2 2 143 #define AT91_PWM3 3 144 145 extern void __init at91_add_device_pwm(u32 mask); 146 147 /* 148 * SSC -- accessed through ssc_request(id). Drivers don't bind to SSC 149 * platform devices. Their SSC ID is part of their configuration data, 150 * along with information about which SSC signals they should use. 151 */ 152 #define ATMEL_SSC_TK 0x01 153 #define ATMEL_SSC_TF 0x02 154 #define ATMEL_SSC_TD 0x04 155 #define ATMEL_SSC_TX (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD) 156 157 #define ATMEL_SSC_RK 0x10 158 #define ATMEL_SSC_RF 0x20 159 #define ATMEL_SSC_RD 0x40 160 #define ATMEL_SSC_RX (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD) 161 162 extern void __init at91_add_device_ssc(unsigned id, unsigned pins); 163 164 /* LCD Controller */ 165 struct atmel_lcdfb_info; 166 extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data); 167 168 /* AC97 */ 169 extern void __init at91_add_device_ac97(struct ac97c_platform_data *data); 170 171 /* ISI */ 172 struct isi_platform_data; 173 extern void __init at91_add_device_isi(struct isi_platform_data *data, 174 bool use_pck_as_mck); 175 176 /* Touchscreen Controller */ 177 struct at91_tsadcc_data { 178 unsigned int adc_clock; 179 u8 pendet_debounce; 180 u8 ts_sample_hold_time; 181 }; 182 extern void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data); 183 184 /* CAN */ 185 struct at91_can_data { 186 void (*transceiver_switch)(int on); 187 }; 188 extern void __init at91_add_device_can(struct at91_can_data *data); 189 190 /* LEDs */ 191 extern void __init at91_init_leds(u8 cpu_led, u8 timer_led); 192 extern void __init at91_gpio_leds(struct gpio_led *leds, int nr); 193 extern void __init at91_pwm_leds(struct gpio_led *leds, int nr); 194 195 /* FIXME: this needs a better location, but gets stuff building again */ 196 extern int at91_suspend_entering_slow_clock(void); 197 198 #endif 199