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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 | ||
24 | void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) | |
25 | { | |
26 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; | |
27 | ||
28 | /* Set all the necessary GPG pins to special-function 2 */ | |
29 | s3c_gpio_cfgrange_nopull(S3C64XX_GPG(0), 2 + width, S3C_GPIO_SFN(2)); | |
30 | ||
31 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { | |
32 | s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); | |
33 | s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(2)); | |
34 | } | |
35 | } | |
36 | ||
37 | void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) | |
38 | { | |
39 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; | |
40 | ||
41 | /* Set all the necessary GPH pins to special-function 2 */ | |
42 | s3c_gpio_cfgrange_nopull(S3C64XX_GPH(0), 2 + width, S3C_GPIO_SFN(2)); | |
43 | ||
44 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { | |
45 | s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); | |
46 | s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3)); | |
47 | } | |
48 | } | |
49 | ||
50 | void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width) | |
51 | { | |
52 | /* Set all the necessary GPH pins to special-function 3 */ | |
53 | s3c_gpio_cfgrange_nopull(S3C64XX_GPH(6), width, S3C_GPIO_SFN(3)); | |
54 | ||
55 | /* Set all the necessary GPC pins to special-function 3 */ | |
56 | s3c_gpio_cfgrange_nopull(S3C64XX_GPC(4), 2, S3C_GPIO_SFN(3)); | |
57 | } |