LXR linux/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
  18static 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
  26void 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}
  40