ramips: rt305x: introduce rt305x_register_spi helper

Based on a patch by Sergiy <piratfm@gmail.com>

SVN-Revision: 27810

target/linux/ramips/files/arch/mips/ralink/rt305x/devices.c

@@ -14,6 +14,7 @@
 #include <linux/clk.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/physmap.h>
+#include <linux/spi/spi.h>
 #include <linux/rt2x00_platform.h>
 
 #include <asm/addrspace.h>
@@ -220,3 +221,24 @@ void __init rt305x_register_wdt(void)
 
 	platform_device_register(&rt305x_wdt_device);
 }
+
+static struct resource rt305x_spi_resources[] = {
+	{
+		.flags	= IORESOURCE_MEM,
+		.start	= RT305X_SPI_BASE,
+		.end	= RT305X_SPI_BASE + RT305X_SPI_SIZE - 1,
+	},
+};
+
+static struct platform_device rt305x_spi_device = {
+	.name		= "ramips-spi",
+	.id		= 0,
+	.resource	= rt305x_spi_resources,
+	.num_resources	= ARRAY_SIZE(rt305x_spi_resources),
+};
+
+void __init rt305x_register_spi(struct spi_board_info *info, int n)
+{
+	spi_register_board_info(info, n);
+	platform_device_register(&rt305x_spi_device);
+}

target/linux/ramips/files/arch/mips/ralink/rt305x/devices.h

@@ -14,6 +14,7 @@
 #include <asm/mach-ralink/rt305x_esw_platform.h>
 
 struct physmap_flash_data;
+struct spi_board_info;
 
 extern struct rt305x_esw_platform_data rt305x_esw_data;
 
@@ -21,6 +22,7 @@ void rt305x_register_flash(unsigned int id, struct physmap_flash_data *pdata);
 void rt305x_register_ethernet(void);
 void rt305x_register_wifi(void);
 void rt305x_register_wdt(void);
+void rt305x_register_spi(struct spi_board_info *info, int n);
 
 #endif  /* __RT305X_DEVICES_H */