1 files changed, 97 insertions, 0 deletions
diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/platform.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/platform.c
new file mode 100644
index 000000000..a68628696
--- /dev/null
+++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/platform.c
@@ -0,0 +1,97 @@
+/*
+ *  Ralink RT288x SoC platform device registration
+ *
+ *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/physmap.h>
+
+#include <asm/addrspace.h>
+
+#include <asm/mach-ralink/rt288x.h>
+#include <asm/mach-ralink/rt288x_regs.h>
+#include <asm/mach-ralink/platform.h>
+
+static struct resource rt288x_flash0_resources[] = {
+	{
+		.flags	= IORESOURCE_MEM,
+		.start	= KSEG1ADDR(RT2880_FLASH0_BASE),
+		.end	= KSEG1ADDR(RT2880_FLASH0_BASE) +
+			  RT2880_FLASH0_SIZE - 1,
+	},
+};
+
+static struct platform_device rt288x_flash0_device = {
+	.name		= "physmap-flash",
+	.resource	= rt288x_flash0_resources,
+	.num_resources	= ARRAY_SIZE(rt288x_flash0_resources),
+};
+
+static struct resource rt288x_flash1_resources[] = {
+	{
+		.flags	= IORESOURCE_MEM,
+		.start	= KSEG1ADDR(RT2880_FLASH1_BASE),
+		.end	= KSEG1ADDR(RT2880_FLASH1_BASE) +
+			  RT2880_FLASH1_SIZE - 1,
+	},
+};
+
+static struct platform_device rt288x_flash1_device = {
+	.name		= "physmap-flash",
+	.resource	= rt288x_flash1_resources,
+	.num_resources	= ARRAY_SIZE(rt288x_flash1_resources),
+};
+
+static int rt288x_flash_instance __initdata;
+void __init rt288x_register_flash(unsigned int id,
+				  struct physmap_flash_data *pdata)
+{
+	struct platform_device *pdev;
+	u32 t;
+	int reg;
+
+	switch (id) {
+	case 0:
+		pdev = &rt288x_flash0_device;
+		reg = MEMC_REG_FLASH_CFG0;
+		break;
+	case 1:
+		pdev = &rt288x_flash1_device;
+		reg = MEMC_REG_FLASH_CFG1;
+		break;
+	default:
+		return;
+	}
+
+	t = rt288x_memc_rr(reg);
+	t = (t >> FLASH_CFG_WIDTH_SHIFT) & FLASH_CFG_WIDTH_MASK;
+
+	switch (t) {
+	case FLASH_CFG_WIDTH_8BIT:
+		pdata->width = 1;
+		break;
+	case FLASH_CFG_WIDTH_16BIT:
+		pdata->width = 2;
+		break;
+	case FLASH_CFG_WIDTH_32BIT:
+		pdata->width = 4;
+		break;
+	default:
+		printk(KERN_ERR "RT288x: flash bank%u witdh is invalid\n", id);
+		return;
+	}
+
+	pdev->dev.platform_data = pdata;
+	pdev->id = rt288x_flash_instance;
+
+	platform_device_register(pdev);
+	rt288x_flash_instance++;
+}