ARM: mach-shmobile: sh7367 and G3EVM pinmux support

Add support for the sh7367 pinmux using drivers/sh/pfc.c
and select serial console pins and some LEDs on G3EVM.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/arm/mach-shmobile/Kconfig

@@ -31,6 +31,7 @@ comment "SH-Mobile Board Type"
 config MACH_G3EVM
 	bool "G3EVM board"
 	depends on ARCH_SH7367
+	select ARCH_REQUIRE_GPIOLIB
 
 config MACH_G4EVM
 	bool "G4EVM board"

arch/arm/mach-shmobile/Makefile

@@ -10,6 +10,10 @@ obj-$(CONFIG_ARCH_SH7367)	+= setup-sh7367.o clock-sh7367.o intc-sh7367.o
 obj-$(CONFIG_ARCH_SH7377)	+= setup-sh7377.o clock-sh7367.o intc-sh7377.o
 obj-$(CONFIG_ARCH_SH7372)	+= setup-sh7372.o clock-sh7367.o intc-sh7372.o
 
+# Pinmux setup
+pfc-$(CONFIG_ARCH_SH7367)	:= pfc-sh7367.o
+obj-$(CONFIG_GENERIC_GPIO)	+= $(pfc-y)
+
 # Board objects
 obj-$(CONFIG_MACH_G3EVM)	+= board-g3evm.o
 obj-$(CONFIG_MACH_G4EVM)	+= board-g4evm.o

arch/arm/mach-shmobile/board-g3evm.c

@@ -27,6 +27,8 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
 #include <linux/io.h>
+#include <linux/gpio.h>
+#include <mach/sh7367.h>
 #include <mach/common.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -113,6 +115,29 @@ static void __init g3evm_map_io(void)
 
 static void __init g3evm_init(void)
 {
+	sh7367_pinmux_init();
+
+	/* Lit DS4 LED */
+	gpio_request(GPIO_PORT22, NULL);
+	gpio_direction_output(GPIO_PORT22, 1);
+	gpio_export(GPIO_PORT22, 0);
+
+	/* Lit DS8 LED */
+	gpio_request(GPIO_PORT23, NULL);
+	gpio_direction_output(GPIO_PORT23, 1);
+	gpio_export(GPIO_PORT23, 0);
+
+	/* Lit DS3 LED */
+	gpio_request(GPIO_PORT24, NULL);
+	gpio_direction_output(GPIO_PORT24, 1);
+	gpio_export(GPIO_PORT24, 0);
+
+	/* SCIFA1 */
+	gpio_request(GPIO_FN_SCIFA1_TXD, NULL);
+	gpio_request(GPIO_FN_SCIFA1_RXD, NULL);
+	gpio_request(GPIO_FN_SCIFA1_CTS, NULL);
+	gpio_request(GPIO_FN_SCIFA1_RTS, NULL);
+
 	sh7367_add_standard_devices();
 
 	platform_add_devices(g3evm_devices, ARRAY_SIZE(g3evm_devices));

arch/arm/mach-shmobile/include/mach/common.h

@@ -8,6 +8,7 @@ extern void sh7367_init_irq(void);
 extern void sh7367_add_early_devices(void);
 extern void sh7367_add_standard_devices(void);
 extern void sh7367_clock_init(void);
+extern void sh7367_pinmux_init(void);
 
 extern void sh7377_init_irq(void);
 extern void sh7377_add_early_devices(void);

arch/arm/mach-shmobile/include/mach/gpio.h

-/* empty */
+/*
+ * Generic GPIO API and pinmux table support
+ *
+ * Copyright (c) 2008  Magnus Damm
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __ASM_ARCH_GPIO_H
+#define __ASM_ARCH_GPIO_H
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+
+#define ARCH_NR_GPIOS 1024
+#include <linux/sh_pfc.h>
+
+#ifdef CONFIG_GPIOLIB
+
+static inline int gpio_get_value(unsigned gpio)
+{
+	return __gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned gpio, int value)
+{
+	__gpio_set_value(gpio, value);
+}
+
+static inline int gpio_cansleep(unsigned gpio)
+{
+	return __gpio_cansleep(gpio);
+}
+
+static inline int gpio_to_irq(unsigned gpio)
+{
+	return -ENOSYS;
+}
+
+static inline int irq_to_gpio(unsigned int irq)
+{
+	return -EINVAL;
+}
+
+#endif /* CONFIG_GPIOLIB */
+
+#endif /* __ASM_ARCH_GPIO_H */