Add GPIO support for Vybrid platform

Signed-off-by: TsiChung Liew <tsicliew@gmail.com>

3 files changed, 96 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-vybrid/gpio.h b/arch/arm/include/asm/arch-vybrid/gpio.h
new file mode 100644
index 0000000000..d5d307b3ad
--- /dev/null
+++ b/arch/arm/include/asm/arch-vybrid/gpio.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2011
+ * Stefano Babic, DENX Software Engineering, <sbabic@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+
+#ifndef __ASM_ARCH_VYBRID_GPIO_H
+#define __ASM_ARCH_VYBRID_GPIO_H
+
+/* GPIO registers */
+struct gpio_regs {
+	u32	gpio_dr;
+	u32	gpio_dir;
+	u32	gpio_psr;
+};
+
+#endif
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index fb3b09ae74..f9b50e46c6 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -39,6 +39,7 @@ COBJS-$(CONFIG_TEGRA2_GPIO)	+= tegra2_gpio.o
 COBJS-$(CONFIG_DA8XX_GPIO)	+= da8xx_gpio.o
 COBJS-$(CONFIG_ALTERA_PIO)	+= altera_pio.o
 COBJS-$(CONFIG_MPC83XX_GPIO)	+= mpc83xx_gpio.o
+COBJS-$(CONFIG_VYBRID_GPIO)	+= vybrid_gpio.o
 
 COBJS	:= $(COBJS-y)
 SRCS 	:= $(COBJS:.o=.c)
diff --git a/drivers/gpio/vybrid_gpio.c b/drivers/gpio/vybrid_gpio.c
new file mode 100644
index 0000000000..5d5a550b54
--- /dev/null
+++ b/drivers/gpio/vybrid_gpio.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2009
+ * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>
+ *
+ * Copyright (C) 2011
+ * Stefano Babic, DENX Software Engineering, <sbabic@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <asm/arch/vybrid-regs.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <errno.h>
+
+int gpio_set_value(unsigned gpio, int value)
+{
+	return 0;
+}
+
+int gpio_get_value(unsigned gpio)
+{
+	return 0;
+}
+
+int gpio_request(unsigned gpio, const char *label)
+{
+	return 0;
+}
+
+int gpio_free(unsigned gpio)
+{
+	return 0;
+}
+
+int gpio_direction_input(unsigned gpio)
+{
+	return 0;
+}
+
+int gpio_direction_output(unsigned gpio, int value)
+{
+	return 0;
+}