arch/arm/mach-s5pc100/setup-spi.c

   1 /* linux/arch/arm/mach-s5pc100/setup-spi.c
   2  *
   3  * Copyright (C) 2011 Samsung Electronics Ltd.
   4  *              http://www.samsung.com/
   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 version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <linux/gpio.h>
  12 #include <linux/platform_device.h>
  13
  14 #include <plat/gpio-cfg.h>
  15 #include <plat/s3c64xx-spi.h>
  16
  17 #ifdef CONFIG_S3C64XX_DEV_SPI0
  18 struct s3c64xx_spi_info s3c64xx_spi0_pdata __initdata = {
  19         .fifo_lvl_mask  = 0x7f,
  20         .rx_lvl_offset  = 13,
  21         .high_speed     = 1,
  22         .tx_st_done     = 21,
  23 };
  24
  25 int s3c64xx_spi0_cfg_gpio(struct platform_device *dev)
  26 {
  27         s3c_gpio_cfgall_range(S5PC100_GPB(0), 3,
  28                                 S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
  29         return 0;
  30 }
  31 #endif
  32
  33 #ifdef CONFIG_S3C64XX_DEV_SPI1
  34 struct s3c64xx_spi_info s3c64xx_spi1_pdata __initdata = {
  35         .fifo_lvl_mask  = 0x7f,
  36         .rx_lvl_offset  = 13,
  37         .high_speed     = 1,
  38         .tx_st_done     = 21,
  39 };
  40
  41 int s3c64xx_spi1_cfg_gpio(struct platform_device *dev)
  42 {
  43         s3c_gpio_cfgall_range(S5PC100_GPB(4), 3,
  44                                 S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
  45         return 0;
  46 }
  47 #endif
  48
  49 #ifdef CONFIG_S3C64XX_DEV_SPI2
  50 struct s3c64xx_spi_info s3c64xx_spi2_pdata __initdata = {
  51         .fifo_lvl_mask  = 0x7f,
  52         .rx_lvl_offset  = 13,
  53         .high_speed     = 1,
  54         .tx_st_done     = 21,
  55 };
  56
  57 int s3c64xx_spi2_cfg_gpio(struct platform_device *dev)
  58 {
  59         s3c_gpio_cfgpin(S5PC100_GPG3(0), S3C_GPIO_SFN(3));
  60         s3c_gpio_setpull(S5PC100_GPG3(0), S3C_GPIO_PULL_UP);
  61         s3c_gpio_cfgall_range(S5PC100_GPB(2), 2,
  62                                 S3C_GPIO_SFN(3), S3C_GPIO_PULL_UP);
  63         return 0;
  64 }
  65 #endif