1/* linux/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c
2 *
3 * Copyright 2008 Simtec Electronics
4 *	Ben Dooks <ben@simtec.co.uk>
5 *	http://armlinux.simtec.co.uk/
6 *
7 * S3C64XX - Helper functions for setting up SDHCI device(s) GPIO (HSMMC)
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12*/
13
14#include <linux/kernel.h>
15#include <linux/types.h>
16#include <linux/interrupt.h>
17#include <linux/platform_device.h>
18#include <linux/io.h>
19#include <linux/gpio.h>
20
21#include <plat/gpio-cfg.h>
22#include <plat/sdhci.h>
23#include <mach/gpio-samsung.h>
24
25void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
26{
27	struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
28
29	/* Set all the necessary GPG pins to special-function 2 */
30	s3c_gpio_cfgrange_nopull(S3C64XX_GPG(0), 2 + width, S3C_GPIO_SFN(2));
31
32	if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
33		s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP);
34		s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(2));
35	}
36}
37
38void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
39{
40	struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
41
42	/* Set all the necessary GPH pins to special-function 2 */
43	s3c_gpio_cfgrange_nopull(S3C64XX_GPH(0), 2 + width, S3C_GPIO_SFN(2));
44
45	if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
46		s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP);
47		s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3));
48	}
49}
50
51void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
52{
53	/* Set all the necessary GPH pins to special-function 3 */
54	s3c_gpio_cfgrange_nopull(S3C64XX_GPH(6), width, S3C_GPIO_SFN(3));
55
56	/* Set all the necessary GPC pins to special-function 3 */
57	s3c_gpio_cfgrange_nopull(S3C64XX_GPC(4), 2, S3C_GPIO_SFN(3));
58}
59