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1 | /* linux/arch/arm/plat-s5pc1xx/setup-sdhci-gpio.c |
2 | * | |
3 | * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd. | |
4 | * http://www.samsung.com/ | |
5 | * | |
6 | * S5PV210 - Helper functions for setting up SDHCI device(s) GPIO (HSMMC) | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
12 | ||
13 | #include <linux/kernel.h> | |
14 | #include <linux/types.h> | |
15 | #include <linux/interrupt.h> | |
16 | #include <linux/platform_device.h> | |
17 | #include <linux/io.h> | |
1c739c7f | 18 | #include <linux/gpio.h> |
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19 | #include <linux/mmc/host.h> |
20 | #include <linux/mmc/card.h> | |
21 | ||
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22 | #include <plat/gpio-cfg.h> |
23 | #include <plat/regs-sdhci.h> | |
19206b17 | 24 | #include <plat/sdhci.h> |
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25 | |
26 | void s5pv210_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) | |
27 | { | |
19206b17 | 28 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
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29 | |
30 | /* Set all the necessary GPG0/GPG1 pins to special-function 2 */ | |
a7aac9d5 | 31 | s3c_gpio_cfgrange_nopull(S5PV210_GPG0(0), 2, S3C_GPIO_SFN(2)); |
64c5bd84 | 32 | |
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33 | switch (width) { |
34 | case 8: | |
25985edc | 35 | /* GPG1[3:6] special-function 3 */ |
5a350da4 | 36 | s3c_gpio_cfgrange_nopull(S5PV210_GPG1(3), 4, S3C_GPIO_SFN(3)); |
e6f66a9f | 37 | case 4: |
25985edc | 38 | /* GPG0[3:6] special-function 2 */ |
5a350da4 | 39 | s3c_gpio_cfgrange_nopull(S5PV210_GPG0(3), 4, S3C_GPIO_SFN(2)); |
e6f66a9f MS |
40 | default: |
41 | break; | |
42 | } | |
43 | ||
19206b17 MS |
44 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
45 | s3c_gpio_setpull(S5PV210_GPG0(2), S3C_GPIO_PULL_UP); | |
46 | s3c_gpio_cfgpin(S5PV210_GPG0(2), S3C_GPIO_SFN(2)); | |
47 | } | |
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48 | } |
49 | ||
50 | void s5pv210_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) | |
51 | { | |
19206b17 | 52 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
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53 | |
54 | /* Set all the necessary GPG1[0:1] pins to special-function 2 */ | |
5a350da4 | 55 | s3c_gpio_cfgrange_nopull(S5PV210_GPG1(0), 2, S3C_GPIO_SFN(2)); |
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56 | |
57 | /* Data pin GPG1[3:6] to special-function 2 */ | |
5a350da4 | 58 | s3c_gpio_cfgrange_nopull(S5PV210_GPG1(3), 4, S3C_GPIO_SFN(2)); |
e6f66a9f | 59 | |
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60 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
61 | s3c_gpio_setpull(S5PV210_GPG1(2), S3C_GPIO_PULL_UP); | |
62 | s3c_gpio_cfgpin(S5PV210_GPG1(2), S3C_GPIO_SFN(2)); | |
63 | } | |
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64 | } |
65 | ||
66 | void s5pv210_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width) | |
67 | { | |
19206b17 | 68 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
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69 | |
70 | /* Set all the necessary GPG2[0:1] pins to special-function 2 */ | |
5a350da4 | 71 | s3c_gpio_cfgrange_nopull(S5PV210_GPG2(0), 2, S3C_GPIO_SFN(2)); |
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72 | |
73 | switch (width) { | |
74 | case 8: | |
75 | /* Data pin GPG3[3:6] to special-function 3 */ | |
5a350da4 | 76 | s3c_gpio_cfgrange_nopull(S5PV210_GPG3(3), 4, S3C_GPIO_SFN(3)); |
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77 | case 4: |
78 | /* Data pin GPG2[3:6] to special-function 2 */ | |
5a350da4 | 79 | s3c_gpio_cfgrange_nopull(S5PV210_GPG2(3), 4, S3C_GPIO_SFN(2)); |
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80 | default: |
81 | break; | |
82 | } | |
83 | ||
19206b17 MS |
84 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
85 | s3c_gpio_setpull(S5PV210_GPG2(2), S3C_GPIO_PULL_UP); | |
86 | s3c_gpio_cfgpin(S5PV210_GPG2(2), S3C_GPIO_SFN(2)); | |
87 | } | |
e6f66a9f | 88 | } |
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89 | |
90 | void s5pv210_setup_sdhci3_cfg_gpio(struct platform_device *dev, int width) | |
91 | { | |
a68fefe0 | 92 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
976a62f2 | 93 | |
64c5bd84 | 94 | /* Set all the necessary GPG3[0:1] pins to special-function 2 */ |
a7aac9d5 | 95 | s3c_gpio_cfgrange_nopull(S5PV210_GPG3(0), 2, S3C_GPIO_SFN(2)); |
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96 | |
97 | /* Data pin GPG3[3:6] to special-function 2 */ | |
a7aac9d5 | 98 | s3c_gpio_cfgrange_nopull(S5PV210_GPG3(3), 4, S3C_GPIO_SFN(2)); |
976a62f2 | 99 | |
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100 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
101 | s3c_gpio_setpull(S5PV210_GPG3(2), S3C_GPIO_PULL_UP); | |
102 | s3c_gpio_cfgpin(S5PV210_GPG3(2), S3C_GPIO_SFN(2)); | |
103 | } | |
976a62f2 | 104 | } |