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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /arch/arm/mach-s3c/setup-sdhci-gpio-s3c64xx.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-s3c/setup-sdhci-gpio-s3c64xx.c')
-rw-r--r--arch/arm/mach-s3c/setup-sdhci-gpio-s3c64xx.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c/setup-sdhci-gpio-s3c64xx.c b/arch/arm/mach-s3c/setup-sdhci-gpio-s3c64xx.c
new file mode 100644
index 000000000..646ff949a
--- /dev/null
+++ b/arch/arm/mach-s3c/setup-sdhci-gpio-s3c64xx.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// 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)
+
+#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 "gpio-cfg.h"
+#include "sdhci.h"
+#include "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));
+}