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gerrit-public.fairphone.software / kernel / msm-4.19 / e594ea3e48579fb1908eea4dc70184e3ba74cb9d / . / arch / arm / mach-s3c64xx / setup-sdhci-gpio.c
blob: 4262f78a93cac23e2c4d98e0a6f876422b9666d9 [file] [log] [blame]
Ben Dooks4faf68672009-03-25 11:01:24 +0000[diff] [blame]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>
Kukjin Kim1c739c72010-08-05 07:54:49 +0900[diff] [blame]19#include <linux/gpio.h>
Ben Dooks4faf68672009-03-25 11:01:24 +0000[diff] [blame]20
Ben Dooks4faf68672009-03-25 11:01:24 +0000[diff] [blame]21#include <plat/gpio-cfg.h>
Marek Szyprowski19206b12010-07-23 09:27:18 +0900[diff] [blame]22#include <plat/sdhci.h>
Ben Dooks4faf68672009-03-25 11:01:24 +0000[diff] [blame]23
24void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
25{
Marek Szyprowski19206b12010-07-23 09:27:18 +0900[diff] [blame]26 struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
Ben Dooks4faf68672009-03-25 11:01:24 +0000[diff] [blame]27
Ben Dooksdab30d72010-10-01 16:39:15 +0900[diff] [blame]28 /* Set all the necessary GPG pins to special-function 2 */
29 s3c_gpio_cfgall_range(S3C64XX_GPG(0), 2 + width,
30 S3C_GPIO_SFN(2), S3C_GPIO_PULL_NONE);
Ben Dooks4faf68672009-03-25 11:01:24 +0000[diff] [blame]31
Marek Szyprowski19206b12010-07-23 09:27:18 +0900[diff] [blame]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 }
Ben Dooks4faf68672009-03-25 11:01:24 +0000[diff] [blame]36}
37
38void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
39{
Marek Szyprowski19206b12010-07-23 09:27:18 +0900[diff] [blame]40 struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
Ben Dooks4faf68672009-03-25 11:01:24 +0000[diff] [blame]41
Ben Dooksdab30d72010-10-01 16:39:15 +0900[diff] [blame]42 /* Set all the necessary GPH pins to special-function 2 */
43 s3c_gpio_cfgall_range(S3C64XX_GPH(0), 2 + width,
44 S3C_GPIO_SFN(2), S3C_GPIO_PULL_NONE);
Ben Dooks4faf68672009-03-25 11:01:24 +0000[diff] [blame]45
Marek Szyprowski19206b12010-07-23 09:27:18 +0900[diff] [blame]46 if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
47 s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP);
48 s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3));
49 }
Ben Dooks4faf68672009-03-25 11:01:24 +0000[diff] [blame]50}
Maurus Cuelenaere92b118f2009-11-23 13:34:46 +0100[diff] [blame]51
52void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
53{
Ben Dooksdab30d72010-10-01 16:39:15 +0900[diff] [blame]54 /* Set all the necessary GPH pins to special-function 3 */
55 s3c_gpio_cfgall_range(S3C64XX_GPH(6), width,
56 S3C_GPIO_SFN(3), S3C_GPIO_PULL_NONE);
Maurus Cuelenaere92b118f2009-11-23 13:34:46 +0100[diff] [blame]57
Ben Dooksdab30d72010-10-01 16:39:15 +0900[diff] [blame]58 /* Set all the necessary GPC pins to special-function 3 */
59 s3c_gpio_cfgall_range(S3C64XX_GPC(4), 2,
60 S3C_GPIO_SFN(3), S3C_GPIO_PULL_NONE);
Maurus Cuelenaere92b118f2009-11-23 13:34:46 +0100[diff] [blame]61}