1// SPDX-License-Identifier: GPL-2.0
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#include <linux/kernel.h>
10#include <linux/types.h>
11#include <linux/interrupt.h>
12#include <linux/platform_device.h>
13#include <linux/io.h>
14#include <linux/gpio.h>
15
16#include "gpio-cfg.h"
17#include "sdhci.h"
18#include "gpio-samsung.h"
19
20void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
21{
22	struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
23
24	/* Set all the necessary GPG pins to special-function 2 */
25	s3c_gpio_cfgrange_nopull(S3C64XX_GPG(0), 2 + width, S3C_GPIO_SFN(2));
26
27	if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
28		s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP);
29		s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(2));
30	}
31}
32
33void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
34{
35	struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
36
37	/* Set all the necessary GPH pins to special-function 2 */
38	s3c_gpio_cfgrange_nopull(S3C64XX_GPH(0), 2 + width, S3C_GPIO_SFN(2));
39
40	if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
41		s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP);
42		s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3));
43	}
44}
45
46void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
47{
48	/* Set all the necessary GPH pins to special-function 3 */
49	s3c_gpio_cfgrange_nopull(S3C64XX_GPH(6), width, S3C_GPIO_SFN(3));
50
51	/* Set all the necessary GPC pins to special-function 3 */
52	s3c_gpio_cfgrange_nopull(S3C64XX_GPC(4), 2, S3C_GPIO_SFN(3));
53}
54