Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / arm / mach-s3c64xx / setup-sdhci-gpio.c

diff --git a/kernel/arch/arm/mach-s3c64xx/setup-sdhci-gpio.c b/kernel/arch/arm/mach-s3c64xx/setup-sdhci-gpio.c
new file mode 100644 (file)
index 0000000..f426b7a
--- /dev/null
+++ b/kernel/arch/arm/mach-s3c64xx/setup-sdhci-gpio.c
@@ -0,0 +1,58 @@
+/* linux/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c
+ *
+ * Copyright 2008 Simtec Electronics
+ *     Ben Dooks <ben@simtec.co.uk>
+ *     http://armlinux.simtec.co.uk/
+ *
+ * S3C64XX - 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 <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+
+#include <plat/gpio-cfg.h>
+#include <plat/sdhci.h>
+#include <mach/gpio-samsung.h>
+
+void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
+{
+       struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
+
+       /* Set all the necessary GPG pins to special-function 2 */
+       s3c_gpio_cfgrange_nopull(S3C64XX_GPG(0), 2 + width, S3C_GPIO_SFN(2));
+
+       if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
+               s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP);
+               s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(2));
+       }
+}
+
+void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
+{
+       struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
+
+       /* Set all the necessary GPH pins to special-function 2 */
+       s3c_gpio_cfgrange_nopull(S3C64XX_GPH(0), 2 + width, S3C_GPIO_SFN(2));
+
+       if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
+               s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP);
+               s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3));
+       }
+}
+
+void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
+{
+       /* Set all the necessary GPH pins to special-function 3 */
+       s3c_gpio_cfgrange_nopull(S3C64XX_GPH(6), width, S3C_GPIO_SFN(3));
+
+       /* Set all the necessary GPC pins to special-function 3 */
+       s3c_gpio_cfgrange_nopull(S3C64XX_GPC(4), 2, S3C_GPIO_SFN(3));
+}