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authorBen Dooks <ben@simtec.co.uk>2009-08-03 17:26:50 +0100
committerBen Dooks <ben-linux@fluff.org>2009-08-14 01:26:09 +0100
commita2c195fdde20772a90ee98ce3523dcfbda49eee6 (patch)
tree9c54f3bb7083095688dee32ead4ec2c5bdf32896 /arch/arm/plat-s3c24xx
parentd91e9a7ab93e09e5a0fbed73f3a6a330f14620a4 (diff)
ARM: S3C24XX: Add SPI bus 1 on GPD8 through GPD10
Add configuration callback for SPI bus 1 on GPD[8..10] and ensure the correct GPIO configuration register definitions in regs-gpio.h Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/plat-s3c24xx')
-rw-r--r--arch/arm/plat-s3c24xx/Kconfig6
-rw-r--r--arch/arm/plat-s3c24xx/Makefile1
-rw-r--r--arch/arm/plat-s3c24xx/spi-bus1-gpd8_9_10.c38
3 files changed, 45 insertions, 0 deletions
diff --git a/arch/arm/plat-s3c24xx/Kconfig b/arch/arm/plat-s3c24xx/Kconfig
index 5b0bc914f58..aaae456018b 100644
--- a/arch/arm/plat-s3c24xx/Kconfig
+++ b/arch/arm/plat-s3c24xx/Kconfig
@@ -105,6 +105,12 @@ config S3C24XX_SPI_BUS1_GPG5_GPG6_GPG7
SPI GPIO configuration code for BUS 1 when connected to
GPG5, GPG6 and GPG7.
+config S3C24XX_SPI_BUS1_GPD8_GPD9_GPD10
+ bool
+ help
+ SPI GPIO configuration code for BUS 1 when connected to
+ GPD8, GPD9 and GPD10.
+
# common code for s3c24xx based machines, such as the SMDKs.
config MACH_SMDK
diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile
index 579a165c282..59416796fb1 100644
--- a/arch/arm/plat-s3c24xx/Makefile
+++ b/arch/arm/plat-s3c24xx/Makefile
@@ -41,6 +41,7 @@ obj-$(CONFIG_ARCH_S3C2410) += setup-i2c.o
obj-$(CONFIG_S3C24XX_SPI_BUS0_GPE11_GPE12_GPE13) += spi-bus0-gpe11_12_13.o
obj-$(CONFIG_S3C24XX_SPI_BUS1_GPG5_GPG6_GPG7) += spi-bus1-gpg5_6_7.o
+obj-$(CONFIG_S3C24XX_SPI_BUS1_GPD8_GPD9_GPD10) += spi-bus1-gpd8_9_10.o
# machine common support
diff --git a/arch/arm/plat-s3c24xx/spi-bus1-gpd8_9_10.c b/arch/arm/plat-s3c24xx/spi-bus1-gpd8_9_10.c
new file mode 100644
index 00000000000..89fcf5308cf
--- /dev/null
+++ b/arch/arm/plat-s3c24xx/spi-bus1-gpd8_9_10.c
@@ -0,0 +1,38 @@
+/* linux/arch/arm/plat-s3c24xx/spi-bus0-gpd8_9_10.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 gpd8,9,10
+ *
+ * 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 <linux/gpio.h>
+
+#include <mach/spi.h>
+#include <mach/regs-gpio.h>
+
+void s3c24xx_spi_gpiocfg_bus1_gpd8_9_10(struct s3c2410_spi_info *spi,
+ int enable)
+{
+
+ printk(KERN_INFO "%s(%d)\n", __func__, enable);
+ if (enable) {
+ s3c2410_gpio_cfgpin(S3C2410_GPD(10), S3C2440_GPD10_SPICLK1);
+ s3c2410_gpio_cfgpin(S3C2410_GPD(9), S3C2440_GPD9_SPIMOSI1);
+ s3c2410_gpio_cfgpin(S3C2410_GPD(8), S3C2440_GPD8_SPIMISO1);
+ s3c2410_gpio_pullup(S3C2410_GPD(10), 0);
+ s3c2410_gpio_pullup(S3C2410_GPD(9), 0);
+ } else {
+ s3c2410_gpio_cfgpin(S3C2410_GPD(8), S3C2410_GPIO_INPUT);
+ s3c2410_gpio_cfgpin(S3C2410_GPD(9), S3C2410_GPIO_INPUT);
+ s3c2410_gpio_pullup(S3C2410_GPD(10), 1);
+ s3c2410_gpio_pullup(S3C2410_GPD(9), 1);
+ s3c2410_gpio_pullup(S3C2410_GPD(8), 1);
+ }
+}