From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001 From: Yuval Adam <_@yuv.al> Date: Wed, 30 Aug 2017 08:25:59 +0000 Subject: Initial file dump from open source release --- arch/arm/mach-s5pc100/setup-sdhci-gpio.c | 70 ++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 arch/arm/mach-s5pc100/setup-sdhci-gpio.c (limited to 'arch/arm/mach-s5pc100/setup-sdhci-gpio.c') diff --git a/arch/arm/mach-s5pc100/setup-sdhci-gpio.c b/arch/arm/mach-s5pc100/setup-sdhci-gpio.c new file mode 100644 index 00000000..6010c031 --- /dev/null +++ b/arch/arm/mach-s5pc100/setup-sdhci-gpio.c @@ -0,0 +1,70 @@ +/* linux/arch/arm/plat-s5pc100/setup-sdhci-gpio.c + * + * Copyright 2009 Samsung Eletronics + * + * S5PC100 - Helper functions for setting up SDHCI device(s) GPIO (HSMMC) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) +{ + struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; + unsigned int num; + + num = width; + /* In case of 8 width, we should decrease the 2 */ + if (width == 8) + num = width - 2; + + /* Set all the necessary GPG0/GPG1 pins to special-function 0 */ + s3c_gpio_cfgrange_nopull(S5PC100_GPG0(0), 2 + num, S3C_GPIO_SFN(2)); + + if (width == 8) + s3c_gpio_cfgrange_nopull(S5PC100_GPG1(0), 2, S3C_GPIO_SFN(2)); + + if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { + s3c_gpio_setpull(S5PC100_GPG1(2), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S5PC100_GPG1(2), S3C_GPIO_SFN(2)); + } +} + +void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) +{ + struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; + + /* Set all the necessary GPG2 pins to special-function 2 */ + s3c_gpio_cfgrange_nopull(S5PC100_GPG2(0), 2 + width, S3C_GPIO_SFN(2)); + + if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { + s3c_gpio_setpull(S5PC100_GPG2(6), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S5PC100_GPG2(6), S3C_GPIO_SFN(2)); + } +} + +void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width) +{ + struct s3c_sdhci_platdata *pdata = dev->dev.platform_data; + + /* Set all the necessary GPG3 pins to special-function 2 */ + s3c_gpio_cfgrange_nopull(S5PC100_GPG3(0), 2 + width, S3C_GPIO_SFN(2)); + + if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) { + s3c_gpio_setpull(S5PC100_GPG3(6), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S5PC100_GPG3(6), S3C_GPIO_SFN(2)); + } +} -- cgit v1.3.1