git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| e6f66a9f MS |
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> | |
| 18 | #include <linux/mmc/host.h> | |
| 19 | #include <linux/mmc/card.h> | |
| 20 | ||
| 21 | #include <mach/gpio.h> | |
| 22 | #include <plat/gpio-cfg.h> | |
| 23 | #include <plat/regs-sdhci.h> | |
| 19206b17 | 24 | #include <plat/sdhci.h> |
| e6f66a9f MS |
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; |
| e6f66a9f MS |
29 | unsigned int gpio; |
| 30 | ||
| 31 | /* Set all the necessary GPG0/GPG1 pins to special-function 2 */ | |
| 32 | for (gpio = S5PV210_GPG0(0); gpio < S5PV210_GPG0(2); gpio++) { | |
| 33 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); | |
| 34 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); | |
| 35 | } | |
| 36 | switch (width) { | |
| 37 | case 8: | |
| 38 | /* GPG1[3:6] special-funtion 3 */ | |
| 39 | for (gpio = S5PV210_GPG1(3); gpio <= S5PV210_GPG1(6); gpio++) { | |
| 40 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); | |
| 41 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); | |
| 42 | } | |
| 43 | case 4: | |
| 44 | /* GPG0[3:6] special-funtion 2 */ | |
| 45 | for (gpio = S5PV210_GPG0(3); gpio <= S5PV210_GPG0(6); gpio++) { | |
| 46 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); | |
| 47 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); | |
| 48 | } | |
| 49 | default: | |
| 50 | break; | |
| 51 | } | |
| 52 | ||
| 19206b17 MS |
53 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
| 54 | s3c_gpio_setpull(S5PV210_GPG0(2), S3C_GPIO_PULL_UP); | |
| 55 | s3c_gpio_cfgpin(S5PV210_GPG0(2), S3C_GPIO_SFN(2)); | |
| 56 | } | |
| e6f66a9f MS |
57 | } |
| 58 | ||
| 59 | void s5pv210_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) | |
| 60 | { | |
| 19206b17 | 61 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
| e6f66a9f MS |
62 | unsigned int gpio; |
| 63 | ||
| 64 | /* Set all the necessary GPG1[0:1] pins to special-function 2 */ | |
| 65 | for (gpio = S5PV210_GPG1(0); gpio < S5PV210_GPG1(2); gpio++) { | |
| 66 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); | |
| 67 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); | |
| 68 | } | |
| 69 | ||
| 70 | /* Data pin GPG1[3:6] to special-function 2 */ | |
| 71 | for (gpio = S5PV210_GPG1(3); gpio <= S5PV210_GPG1(6); gpio++) { | |
| 72 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); | |
| 73 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); | |
| 74 | } | |
| 75 | ||
| 19206b17 MS |
76 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
| 77 | s3c_gpio_setpull(S5PV210_GPG1(2), S3C_GPIO_PULL_UP); | |
| 78 | s3c_gpio_cfgpin(S5PV210_GPG1(2), S3C_GPIO_SFN(2)); | |
| 79 | } | |
| e6f66a9f MS |
80 | } |
| 81 | ||
| 82 | void s5pv210_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width) | |
| 83 | { | |
| 19206b17 | 84 | struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; |
| e6f66a9f MS |
85 | unsigned int gpio; |
| 86 | ||
| 87 | /* Set all the necessary GPG2[0:1] pins to special-function 2 */ | |
| 88 | for (gpio = S5PV210_GPG2(0); gpio < S5PV210_GPG2(2); gpio++) { | |
| 89 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); | |
| 90 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); | |
| 91 | } | |
| 92 | ||
| 93 | switch (width) { | |
| 94 | case 8: | |
| 95 | /* Data pin GPG3[3:6] to special-function 3 */ | |
| 96 | for (gpio = S5PV210_GPG3(3); gpio <= S5PV210_GPG3(6); gpio++) { | |
| 97 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); | |
| 98 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); | |
| 99 | } | |
| 100 | case 4: | |
| 101 | /* Data pin GPG2[3:6] to special-function 2 */ | |
| 102 | for (gpio = S5PV210_GPG2(3); gpio <= S5PV210_GPG2(6); gpio++) { | |
| 103 | s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); | |
| 104 | s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); | |
| 105 | } | |
| 106 | default: | |
| 107 | break; | |
| 108 | } | |
| 109 | ||
| 19206b17 MS |
110 | if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { |
| 111 | s3c_gpio_setpull(S5PV210_GPG2(2), S3C_GPIO_PULL_UP); | |
| 112 | s3c_gpio_cfgpin(S5PV210_GPG2(2), S3C_GPIO_SFN(2)); | |
| 113 | } | |
| e6f66a9f | 114 | } |