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2af716ba | 1 | /* linux/arch/arm/plat-s5pc100/setup-sdhci-gpio.c |
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2 | * |
3 | * Copyright 2009 Samsung Eletronics | |
4 | * | |
2af716ba | 5 | * S5PC100 - Helper functions for setting up SDHCI device(s) GPIO (HSMMC) |
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6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include <linux/kernel.h> | |
13 | #include <linux/types.h> | |
14 | #include <linux/interrupt.h> | |
15 | #include <linux/platform_device.h> | |
16 | #include <linux/io.h> | |
17 | #include <linux/gpio.h> | |
18 | #include <linux/mmc/host.h> | |
19 | #include <linux/mmc/card.h> | |
20 | ||
21 | #include <plat/gpio-cfg.h> | |
19206b17 | 22 | #include <plat/sdhci.h> |
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23 | |
24 | void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) | |
25 | { | |
19206b17 | 26 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
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27 | unsigned int num; |
28 | ||
29 | num = width; | |
30 | /* In case of 8 width, we should decrease the 2 */ | |
31 | if (width == 8) | |
32 | num = width - 2; | |
33 | ||
86cd4f5f | 34 | /* Set all the necessary GPG0/GPG1 pins to special-function 0 */ |
8f89d5b3 | 35 | s3c_gpio_cfgrange_nopull(S5PC100_GPG0(0), 2 + num, S3C_GPIO_SFN(2)); |
86cd4f5f | 36 | |
a40af066 | 37 | if (width == 8) |
8f89d5b3 | 38 | s3c_gpio_cfgrange_nopull(S5PC100_GPG1(0), 2, S3C_GPIO_SFN(2)); |
86cd4f5f | 39 | |
19206b17 MS |
40 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
41 | s3c_gpio_setpull(S5PC100_GPG1(2), S3C_GPIO_PULL_UP); | |
42 | s3c_gpio_cfgpin(S5PC100_GPG1(2), S3C_GPIO_SFN(2)); | |
43 | } | |
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44 | } |
45 | ||
46 | void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) | |
47 | { | |
19206b17 | 48 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
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49 | |
50 | /* Set all the necessary GPG2 pins to special-function 2 */ | |
8f89d5b3 | 51 | s3c_gpio_cfgrange_nopull(S5PC100_GPG2(0), 2 + width, S3C_GPIO_SFN(2)); |
86cd4f5f | 52 | |
19206b17 MS |
53 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
54 | s3c_gpio_setpull(S5PC100_GPG2(6), S3C_GPIO_PULL_UP); | |
55 | s3c_gpio_cfgpin(S5PC100_GPG2(6), S3C_GPIO_SFN(2)); | |
56 | } | |
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57 | } |
58 | ||
59 | void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width) | |
60 | { | |
19206b17 | 61 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
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62 | |
63 | /* Set all the necessary GPG3 pins to special-function 2 */ | |
8f89d5b3 | 64 | s3c_gpio_cfgrange_nopull(S5PC100_GPG3(0), 2 + width, S3C_GPIO_SFN(2)); |
86cd4f5f | 65 | |
19206b17 MS |
66 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
67 | s3c_gpio_setpull(S5PC100_GPG3(6), S3C_GPIO_PULL_UP); | |
68 | s3c_gpio_cfgpin(S5PC100_GPG3(6), S3C_GPIO_SFN(2)); | |
69 | } | |
86cd4f5f | 70 | } |