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authorStefan Roese <sr@denx.de>2012-02-14 14:01:36 +0100
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-07-07 14:07:42 +0200
commit2cb06a4fda4e7a88c734adaec9eeb5059e50f76b (patch)
tree581488a2e1a1a20c37c5cb6ebc2a4557423608a9 /arch/arm/include
parentef76025a99247cdb8f927a2c9f15400678dfb599 (diff)
downloadu-boot-linaro-stable-2cb06a4fda4e7a88c734adaec9eeb5059e50f76b.tar.gz
GPIO: Add SPEAr GPIO driver
Tested on x600 (SPEAr600). Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/arch-spear/gpio.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-spear/gpio.h b/arch/arm/include/asm/arch-spear/gpio.h
new file mode 100644
index 000000000..c3697de8c
--- /dev/null
+++ b/arch/arm/include/asm/arch-spear/gpio.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2012 Stefan Roese <sr@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_SPEAR_GPIO_H
+#define __ASM_ARCH_SPEAR_GPIO_H
+
+enum gpio_direction {
+ GPIO_DIRECTION_IN,
+ GPIO_DIRECTION_OUT,
+};
+
+struct gpio_regs {
+ u32 gpiodata[0x100]; /* 0x000 ... 0x3fc */
+ u32 gpiodir; /* 0x400 */
+};
+
+#define SPEAR_GPIO_COUNT 8
+#define DATA_REG_ADDR(gpio) (1 << (gpio + 2))
+
+#endif /* __ASM_ARCH_SPEAR_GPIO_H */