1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun //
3*4882a593Smuzhiyun // Copyright 2008 Simtec Electronics
4*4882a593Smuzhiyun // Ben Dooks <ben@simtec.co.uk>
5*4882a593Smuzhiyun // http://armlinux.simtec.co.uk/
6*4882a593Smuzhiyun //
7*4882a593Smuzhiyun // S3C64XX - Helper functions for setting up SDHCI device(s) GPIO (HSMMC)
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <linux/kernel.h>
10*4882a593Smuzhiyun #include <linux/types.h>
11*4882a593Smuzhiyun #include <linux/interrupt.h>
12*4882a593Smuzhiyun #include <linux/platform_device.h>
13*4882a593Smuzhiyun #include <linux/io.h>
14*4882a593Smuzhiyun #include <linux/gpio.h>
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun #include "gpio-cfg.h"
17*4882a593Smuzhiyun #include "sdhci.h"
18*4882a593Smuzhiyun #include "gpio-samsung.h"
19*4882a593Smuzhiyun
s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device * dev,int width)20*4882a593Smuzhiyun void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun /* Set all the necessary GPG pins to special-function 2 */
25*4882a593Smuzhiyun s3c_gpio_cfgrange_nopull(S3C64XX_GPG(0), 2 + width, S3C_GPIO_SFN(2));
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
28*4882a593Smuzhiyun s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP);
29*4882a593Smuzhiyun s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(2));
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun }
32*4882a593Smuzhiyun
s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device * dev,int width)33*4882a593Smuzhiyun void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
34*4882a593Smuzhiyun {
35*4882a593Smuzhiyun struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun /* Set all the necessary GPH pins to special-function 2 */
38*4882a593Smuzhiyun s3c_gpio_cfgrange_nopull(S3C64XX_GPH(0), 2 + width, S3C_GPIO_SFN(2));
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
41*4882a593Smuzhiyun s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP);
42*4882a593Smuzhiyun s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3));
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun
s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device * dev,int width)46*4882a593Smuzhiyun void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
47*4882a593Smuzhiyun {
48*4882a593Smuzhiyun /* Set all the necessary GPH pins to special-function 3 */
49*4882a593Smuzhiyun s3c_gpio_cfgrange_nopull(S3C64XX_GPH(6), width, S3C_GPIO_SFN(3));
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun /* Set all the necessary GPC pins to special-function 3 */
52*4882a593Smuzhiyun s3c_gpio_cfgrange_nopull(S3C64XX_GPC(4), 2, S3C_GPIO_SFN(3));
53*4882a593Smuzhiyun }
54