[ARM] S3C24XX: Default SPI pin configuration for SPI

Add a set of default pin configuration routines for
setting up the SPI gpio configuration when using the
hardware SPI driver.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 37 insertions, 0 deletions

diff --git a/arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c b/arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c
new file mode 100644
index 000000000000..8fccd4e549f0
--- /dev/null
+++ b/arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c
@@ -0,0 +1,37 @@
+/* linux/arch/arm/plat-s3c24xx/spi-bus0-gpg5_6_7.c
+ *
+ * Copyright (c) 2008 Simtec Electronics
+ *	http://armlinux.simtec.co.uk/
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C24XX SPI - gpio configuration for bus 1 on gpg5,6,7
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+*/
+
+#include <linux/kernel.h>
+
+#include <mach/hardware.h>
+
+#include <mach/spi.h>
+#include <mach/regs-gpio.h>
+
+void s3c24xx_spi_gpiocfg_bus1_gpg5_6_7(struct s3c2410_spi_info *spi,
+				       int enable)
+{
+	if (enable) {
+		s3c2410_gpio_cfgpin(S3C2410_GPG7, S3C2410_GPG7_SPICLK1);
+		s3c2410_gpio_cfgpin(S3C2410_GPG6, S3C2410_GPG6_SPIMOSI1);
+		s3c2410_gpio_cfgpin(S3C2410_GPG5, S3C2410_GPG5_SPIMISO1);
+		s3c2410_gpio_pullup(S3C2410_GPG5, 0);
+		s3c2410_gpio_pullup(S3C2410_GPG6, 0);
+	} else {
+		s3c2410_gpio_cfgpin(S3C2410_GPG7, S3C2410_GPIO_INPUT);
+		s3c2410_gpio_cfgpin(S3C2410_GPG5, S3C2410_GPIO_INPUT);
+		s3c2410_gpio_pullup(S3C2410_GPG5, 1);
+		s3c2410_gpio_pullup(S3C2410_GPG6, 1);
+		s3c2410_gpio_pullup(S3C2410_GPG7, 1);
+	}
+}