TI: DaVinci: GPIO header file and definitions

Some DaVinci SOC's use GPIOs to enable EMAC and DM9000.
This patch adds some definitions for GPIO registers and also adds
structures for GPIO.
A separate header file is being added so that in future we
can have a DaVinci GPIO driver similer to OMAP.

Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Acked-by: Tom Rix <Tom.Rix@windriver.com>

include/asm-arm/arch-davinci/gpio_defs.h

+/*
+ * Copyright (C) 2009 Texas Instruments Incorporated
+ *
+ * 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 _GPIO_DEFS_H_
+#define _GPIO_DEFS_H_
+
+#define DAVINCI_GPIO_BINTEN	0x01C67008
+#define DAVINCI_GPIO_BANK01	0x01C67010
+#define DAVINCI_GPIO_BANK23	0x01C67038
+#define DAVINCI_GPIO_BANK45	0x01C67060
+#define DAVINCI_GPIO_BANK67	0x01C67088
+
+struct davinci_gpio {
+	unsigned int dir;
+	unsigned int out_data;
+	unsigned int set_data;
+	unsigned int clr_data;
+	unsigned int in_data;
+	unsigned int set_rising;
+	unsigned int clr_rising;
+	unsigned int set_falling;
+	unsigned int clr_falling;
+	unsigned int intstat;
+};
+
+struct davinci_gpio_bank {
+	int num_gpio;
+	unsigned int irq_num;
+	unsigned int irq_mask;
+	unsigned long *in_use;
+	unsigned long base;
+};
+
+#endif
+