goldfish: 64-bit nand driver for goldfish platform

Enable the 64-bit nand data support in the goldfish nand driver.

Signed-off-by: Jun Tian <jun.j.tian@intel.com>
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/goldfish/goldfish_nand.c

@@ -67,7 +67,7 @@ static u32 goldfish_nand_cmd_with_params(struct mtd_info *mtd,
 	cps->addr_high = (u32)(addr >> 32);
 	cps->addr_low = (u32)addr;
 	cps->transfer_size = len;
-	cps->data = (u32)ptr;
+	cps->data = (unsigned long)ptr;
 	writel(cmdp, base + NAND_COMMAND);
 	*rv = cps->result;
 	return 0;
@@ -87,6 +87,9 @@ static u32 goldfish_nand_cmd(struct mtd_info *mtd, enum nand_cmd cmd,
 		writel((u32)addr, base + NAND_ADDR_LOW);
 		writel(len, base + NAND_TRANSFER_SIZE);
 		writel((u32)ptr, base + NAND_DATA);
+#ifdef CONFIG_64BIT
+		writel((u32)((u64)ptr >> 32), base + NAND_DATA_HIGH);
+#endif
 		writel(cmd, base + NAND_COMMAND);
 		rv = readl(base + NAND_RESULT);
 	}

drivers/staging/goldfish/goldfish_nand_reg.h

@@ -57,6 +57,9 @@ enum nand_reg {
 	NAND_RESULT         = 0x040,
 	NAND_COMMAND        = 0x044,
 	NAND_DATA           = 0x048,
+#ifdef CONFIG_64BIT
+	NAND_DATA_HIGH	    = 0x100,
+#endif
 	NAND_TRANSFER_SIZE  = 0x04c,
 	NAND_ADDR_LOW       = 0x050,
 	NAND_ADDR_HIGH      = 0x054,
@@ -69,7 +72,7 @@ struct cmd_params {
 	uint32_t addr_low;
 	uint32_t addr_high;
 	uint32_t transfer_size;
-	uint32_t data;
+	unsigned long data;
 	uint32_t result;
 };
 #endif