MX25: make use of GPIO framework for MX25 processor

Signed-off-by: Stefano Babic <sbabic@denx.de>

1 files changed, 45 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-mx25/gpio.h b/arch/arm/include/asm/arch-mx25/gpio.h
new file mode 100644
index 0000000000..dc6edc7c85
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx25/gpio.h
@@ -0,0 +1,45 @@
+/*
+ * 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_MX25_GPIO_H
+#define __ASM_ARCH_MX25_GPIO_H
+
+/* Converts a GPIO port number and the internal bit position
+ * to the GPIO number
+ */
+#define MXC_GPIO_PORT_TO_NUM(port, bit) (((port - 1) << 5) + (bit & 0x1f))
+
+/* GPIO registers */
+struct gpio_regs {
+	u32 gpio_dr;	/* data */
+	u32 gpio_dir;	/* direction */
+	u32 psr;	/* pad satus */
+	u32 icr1;	/* interrupt config 1 */
+	u32 icr2;	/* interrupt config 2 */
+	u32 imr;	/* interrupt mask */
+	u32 isr;	/* interrupt status */
+	u32 edge_sel;	/* edge select */
+};
+
+#endif