board.h 6.4 KB

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  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. * These are data structures found in platform_device.dev.platform_data,
  22. * and describing board-specific data needed by drivers. For example,
  23. * which pin is used for a given GPIO role.
  24. *
  25. * In 2.6, drivers should strongly avoid board-specific knowledge so
  26. * that supporting new boards normally won't require driver patches.
  27. * Most board-specific knowledge should be in arch/.../board-*.c files.
  28. */
  29. #ifndef __ASM_ARCH_BOARD_H
  30. #define __ASM_ARCH_BOARD_H
  31. #include <linux/mtd/partitions.h>
  32. #include <linux/device.h>
  33. #include <linux/i2c.h>
  34. #include <linux/leds.h>
  35. #include <linux/spi/spi.h>
  36. #include <linux/usb/atmel_usba_udc.h>
  37. #include <linux/atmel-mci.h>
  38. #include <sound/atmel-ac97c.h>
  39. #include <linux/serial.h>
  40. #include <linux/platform_data/macb.h>
  41. #include <linux/platform_data/atmel.h>
  42. /* USB Device */
  43. struct at91_udc_data {
  44. int vbus_pin; /* high == host powering us */
  45. u8 vbus_active_low; /* vbus polarity */
  46. u8 vbus_polled; /* Use polling, not interrupt */
  47. int pullup_pin; /* active == D+ pulled up */
  48. u8 pullup_active_low; /* true == pullup_pin is active low */
  49. };
  50. extern void __init at91_add_device_udc(struct at91_udc_data *data);
  51. /* USB High Speed Device */
  52. extern void __init at91_add_device_usba(struct usba_platform_data *data);
  53. /* Compact Flash */
  54. struct at91_cf_data {
  55. int irq_pin; /* I/O IRQ */
  56. int det_pin; /* Card detect */
  57. int vcc_pin; /* power switching */
  58. int rst_pin; /* card reset */
  59. u8 chipselect; /* EBI Chip Select number */
  60. u8 flags;
  61. #define AT91_CF_TRUE_IDE 0x01
  62. #define AT91_IDE_SWAP_A0_A2 0x02
  63. };
  64. extern void __init at91_add_device_cf(struct at91_cf_data *data);
  65. /* MMC / SD */
  66. /* at91_mci platform config */
  67. struct at91_mmc_data {
  68. int det_pin; /* card detect IRQ */
  69. unsigned slot_b:1; /* uses Slot B */
  70. unsigned wire4:1; /* (SD) supports DAT0..DAT3 */
  71. int wp_pin; /* (SD) writeprotect detect */
  72. int vcc_pin; /* power switching (high == on) */
  73. };
  74. extern void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data);
  75. /* atmel-mci platform config */
  76. extern void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data);
  77. extern void __init at91_add_device_eth(struct macb_platform_data *data);
  78. /* USB Host */
  79. #define AT91_MAX_USBH_PORTS 3
  80. struct at91_usbh_data {
  81. int vbus_pin[AT91_MAX_USBH_PORTS]; /* port power-control pin */
  82. int overcurrent_pin[AT91_MAX_USBH_PORTS];
  83. u8 ports; /* number of ports on root hub */
  84. u8 overcurrent_supported;
  85. u8 vbus_pin_active_low[AT91_MAX_USBH_PORTS];
  86. u8 overcurrent_status[AT91_MAX_USBH_PORTS];
  87. u8 overcurrent_changed[AT91_MAX_USBH_PORTS];
  88. };
  89. extern void __init at91_add_device_usbh(struct at91_usbh_data *data);
  90. extern void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data);
  91. extern void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data);
  92. extern void __init at91_add_device_nand(struct atmel_nand_data *data);
  93. /* I2C*/
  94. #if defined(CONFIG_ARCH_AT91SAM9G45)
  95. extern void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, int nr_devices);
  96. #else
  97. extern void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices);
  98. #endif
  99. /* SPI */
  100. extern void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices);
  101. /* Serial */
  102. #define ATMEL_UART_CTS 0x01
  103. #define ATMEL_UART_RTS 0x02
  104. #define ATMEL_UART_DSR 0x04
  105. #define ATMEL_UART_DTR 0x08
  106. #define ATMEL_UART_DCD 0x10
  107. #define ATMEL_UART_RI 0x20
  108. extern void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins);
  109. extern void __init at91_set_serial_console(unsigned portnr);
  110. extern struct platform_device *atmel_default_console_device;
  111. struct atmel_uart_data {
  112. int num; /* port num */
  113. short use_dma_tx; /* use transmit DMA? */
  114. short use_dma_rx; /* use receive DMA? */
  115. void __iomem *regs; /* virt. base address, if any */
  116. struct serial_rs485 rs485; /* rs485 settings */
  117. };
  118. extern void __init at91_add_device_serial(void);
  119. /*
  120. * PWM
  121. */
  122. #define AT91_PWM0 0
  123. #define AT91_PWM1 1
  124. #define AT91_PWM2 2
  125. #define AT91_PWM3 3
  126. extern void __init at91_add_device_pwm(u32 mask);
  127. /*
  128. * SSC -- accessed through ssc_request(id). Drivers don't bind to SSC
  129. * platform devices. Their SSC ID is part of their configuration data,
  130. * along with information about which SSC signals they should use.
  131. */
  132. #define ATMEL_SSC_TK 0x01
  133. #define ATMEL_SSC_TF 0x02
  134. #define ATMEL_SSC_TD 0x04
  135. #define ATMEL_SSC_TX (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD)
  136. #define ATMEL_SSC_RK 0x10
  137. #define ATMEL_SSC_RF 0x20
  138. #define ATMEL_SSC_RD 0x40
  139. #define ATMEL_SSC_RX (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD)
  140. extern void __init at91_add_device_ssc(unsigned id, unsigned pins);
  141. /* LCD Controller */
  142. struct atmel_lcdfb_info;
  143. extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data);
  144. /* AC97 */
  145. extern void __init at91_add_device_ac97(struct ac97c_platform_data *data);
  146. /* ISI */
  147. struct isi_platform_data;
  148. extern void __init at91_add_device_isi(struct isi_platform_data *data,
  149. bool use_pck_as_mck);
  150. /* Touchscreen Controller */
  151. struct at91_tsadcc_data {
  152. unsigned int adc_clock;
  153. u8 pendet_debounce;
  154. u8 ts_sample_hold_time;
  155. };
  156. extern void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data);
  157. /* CAN */
  158. struct at91_can_data {
  159. void (*transceiver_switch)(int on);
  160. };
  161. extern void __init at91_add_device_can(struct at91_can_data *data);
  162. /* LEDs */
  163. extern void __init at91_init_leds(u8 cpu_led, u8 timer_led);
  164. extern void __init at91_gpio_leds(struct gpio_led *leds, int nr);
  165. extern void __init at91_pwm_leds(struct gpio_led *leds, int nr);
  166. /* FIXME: this needs a better location, but gets stuff building again */
  167. extern int at91_suspend_entering_slow_clock(void);
  168. #endif