1 files changed, 105 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/44x/warp-nand.c b/arch/powerpc/platforms/44x/warp-nand.c
new file mode 100644
index 000000000000..84ab78ff8c03
--- /dev/null
+++ b/arch/powerpc/platforms/44x/warp-nand.c
@@ -0,0 +1,105 @@
+/*
+ * PIKA Warp(tm) NAND flash specific routines
+ *
+ * Copyright (c) 2008 PIKA Technologies
+ *   Sean MacLennan <smaclennan@pikatech.com>
+ */
+
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/ndfc.h>
+
+#ifdef CONFIG_MTD_NAND_NDFC
+
+#define CS_NAND_0	1	/* use chip select 1 for NAND device 0 */
+
+#define WARP_NAND_FLASH_REG_ADDR	0xD0000000UL
+#define WARP_NAND_FLASH_REG_SIZE	0x2000
+
+static struct resource warp_ndfc = {
+	.start = WARP_NAND_FLASH_REG_ADDR,
+	.end   = WARP_NAND_FLASH_REG_ADDR + WARP_NAND_FLASH_REG_SIZE,
+	.flags = IORESOURCE_MEM,
+};
+
+static struct mtd_partition nand_parts[] = {
+	{
+		.name   = "kernel",
+		.offset = 0,
+		.size   = 0x0200000
+	},
+	{
+		.name   = "root",
+		.offset = 0x0200000,
+		.size   = 0x3400000
+	},
+	{
+		.name   = "user",
+		.offset = 0x3600000,
+		.size   = 0x0A00000
+	},
+};
+
+struct ndfc_controller_settings warp_ndfc_settings = {
+	.ccr_settings = (NDFC_CCR_BS(CS_NAND_0) | NDFC_CCR_ARAC1),
+	.ndfc_erpn = 0,
+};
+
+static struct ndfc_chip_settings warp_chip0_settings = {
+	.bank_settings = 0x80002222,
+};
+
+struct platform_nand_ctrl warp_nand_ctrl = {
+	.priv = &warp_ndfc_settings,
+};
+
+static struct platform_device warp_ndfc_device = {
+	.name = "ndfc-nand",
+	.id = 0,
+	.dev = {
+		.platform_data = &warp_nand_ctrl,
+	},
+	.num_resources = 1,
+	.resource = &warp_ndfc,
+};
+
+static struct nand_ecclayout nand_oob_16 = {
+	.eccbytes = 3,
+	.eccpos = { 0, 1, 2, 3, 6, 7 },
+	.oobfree = { {.offset = 8, .length = 16} }
+};
+
+static struct platform_nand_chip warp_nand_chip0 = {
+	.nr_chips = 1,
+	.chip_offset = CS_NAND_0,
+	.nr_partitions = ARRAY_SIZE(nand_parts),
+	.partitions = nand_parts,
+	.chip_delay = 50,
+	.ecclayout = &nand_oob_16,
+	.priv = &warp_chip0_settings,
+};
+
+static struct platform_device warp_nand_device = {
+	.name = "ndfc-chip",
+	.id = 0,
+	.num_resources = 1,
+	.resource = &warp_ndfc,
+	.dev = {
+		.platform_data = &warp_nand_chip0,
+		.parent = &warp_ndfc_device.dev,
+	}
+};
+
+static int warp_setup_nand_flash(void)
+{
+	platform_device_register(&warp_ndfc_device);
+	platform_device_register(&warp_nand_device);
+
+	return 0;
+}
+device_initcall(warp_setup_nand_flash);
+
+#endif