arm64: zynqmp: nand: Fixed NAND erase issue for size 1GiB or more

NAND erase was not happening for size 1GiB or more. Erase
command was executing successfully but in actual, it was not
erasing.
This patch fixed erase issue for 1 GiB or more size nand.
Signed-off-by: NVipul Kumar <vipulk@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

drivers/mtd/nand/arasan_nfc.c

@@ -86,7 +86,7 @@ struct arasan_nand_command_format {
 #define ARASAN_NAND_CMD_ADDR_CYCL_MASK		0x70000000
 #define ARASAN_NAND_CMD_ADDR_CYCL_SHIFT		28
 
-#define ARASAN_NAND_MEM_ADDR1_PAGE_MASK		0xFFFF0000
+#define ARASAN_NAND_MEM_ADDR1_PAGE_MASK		0xFFFF
 #define ARASAN_NAND_MEM_ADDR1_COL_MASK		0xFFFF
 #define ARASAN_NAND_MEM_ADDR1_PAGE_SHIFT	16
 #define ARASAN_NAND_MEM_ADDR2_PAGE_MASK		0xFF
@@ -795,10 +795,11 @@ static int arasan_nand_erase(struct arasan_nand_command_format *curr_cmd,
 
 	writel(reg_val, &arasan_nand_base->cmd_reg);
 
-	page = (page_addr << ARASAN_NAND_MEM_ADDR1_PAGE_SHIFT) &
+	page = (page_addr >> ARASAN_NAND_MEM_ADDR1_PAGE_SHIFT) &
 		ARASAN_NAND_MEM_ADDR1_PAGE_MASK;
 	column = page_addr & ARASAN_NAND_MEM_ADDR1_COL_MASK;
-	writel(page | column, &arasan_nand_base->memadr_reg1);
+	writel(column | (page << ARASAN_NAND_MEM_ADDR1_PAGE_SHIFT),
+	       &arasan_nand_base->memadr_reg1);
 
 	reg_val = readl(&arasan_nand_base->memadr_reg2);
 	reg_val &= ~ARASAN_NAND_MEM_ADDR2_PAGE_MASK;