arch/arm/mach-s5pv210/setup-ide.c

   1 /* linux/arch/arm/mach-s5pv210/setup-ide.c
   2  *
   3  * Copyright (c) 2010 Samsung Electronics Co., Ltd.
   4  *              http://www.samsung.com
   5  *
   6  * S5PV210 setup information for IDE
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11 */
  12
  13 #include <linux/kernel.h>
  14 #include <linux/gpio.h>
  15
  16 #include <plat/gpio-cfg.h>
  17
  18 static void s5pv210_ide_cfg_gpios(unsigned int base, unsigned int nr)
  19 {
  20         s3c_gpio_cfgrange_nopull(base, nr, S3C_GPIO_SFN(4));
  21
  22         for (; nr > 0; nr--, base++)
  23                 s5p_gpio_set_drvstr(base, S5P_GPIO_DRVSTR_LV4);
  24 }
  25
  26 void s5pv210_ide_setup_gpio(void)
  27 {
  28         /* CF_Add[0 - 2], CF_IORDY, CF_INTRQ, CF_DMARQ, CF_DMARST, CF_DMACK */
  29         s5pv210_ide_cfg_gpios(S5PV210_GPJ0(0), 8);
  30
  31         /* CF_Data[0 - 7] */
  32         s5pv210_ide_cfg_gpios(S5PV210_GPJ2(0), 8);
  33
  34         /* CF_Data[8 - 15] */
  35         s5pv210_ide_cfg_gpios(S5PV210_GPJ3(0), 8);
  36
  37         /* CF_CS0, CF_CS1, CF_IORD, CF_IOWR */
  38         s5pv210_ide_cfg_gpios(S5PV210_GPJ4(0), 4);
  39 }