arch/arm/mach-s3c24xx/setup-spi.c

   1 /*
   2  * HS-SPI device setup for S3C2443/S3C2416
   3  *
   4  * Copyright (C) 2011 Samsung Electronics Ltd.
   5  *              http://www.samsung.com/
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #include <linux/gpio.h>
  13 #include <linux/platform_device.h>
  14
  15 #include <plat/gpio-cfg.h>
  16 #include <plat/s3c64xx-spi.h>
  17
  18 #include <mach/hardware.h>
  19 #include <mach/regs-gpio.h>
  20
  21 #ifdef CONFIG_S3C64XX_DEV_SPI0
  22 struct s3c64xx_spi_info s3c64xx_spi0_pdata __initdata = {
  23         .fifo_lvl_mask  = 0x7f,
  24         .rx_lvl_offset  = 13,
  25         .tx_st_done     = 21,
  26         .high_speed     = 1,
  27 };
  28
  29 int s3c64xx_spi0_cfg_gpio(struct platform_device *pdev)
  30 {
  31         /* enable hsspi bit in misccr */
  32         s3c2410_modify_misccr(S3C2416_MISCCR_HSSPI_EN2, 1);
  33
  34         s3c_gpio_cfgall_range(S3C2410_GPE(11), 3,
  35                               S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
  36
  37         return 0;
  38 }
  39 #endif