[ARM] 4650/1: AT91: New-style init of I2C, support for i2c-gpio

The AT91 I2C driver is currently marked as "broken" due to hardware
issues.  This patch enables AT91-based platforms to also use the
bitbanged GPIO for I2C.

This updates platform setup logic (setting up an i2c-gpio device
using the same pins as the i2c-at91 device, unless only the BROKEN
driver is enabled).

Also make use of the new-style initialization of I2C devices using
i2c_register_board_info().

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-at91/board-eb9200.c

@@ -91,6 +91,14 @@ static struct at91_mmc_data __initdata eb9200_mmc_data = {
 	.wire4		= 1,
 };
 
+static struct i2c_board_info __initdata eb9200_i2c_devices[] = {
+	{
+		I2C_BOARD_INFO("at24c", 0x50),
+		.type	= "24c512",
+	},
+};
+
+
 static void __init eb9200_board_init(void)
 {
 	/* Serial */
@@ -102,7 +110,7 @@ static void __init eb9200_board_init(void)
 	/* USB Device */
 	at91_add_device_udc(&eb9200_udc_data);
 	/* I2C */
-	at91_add_device_i2c();
+	at91_add_device_i2c(eb9200_i2c_devices, ARRAY_SIZE(eb9200_i2c_devices));
 	/* Compact Flash */
 	at91_add_device_cf(&eb9200_cf_data);
 	/* SPI */