sf: Default page size Spansion flash "S25FS512S" is 256b

page size for JEDEC EXT starting 0x4d00 is 512b,
except JEDEC ID 0x215, 0x216 and 0x220

Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
[jagan: added proper commit message]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
index 2911729..0ed2317 100644
--- a/drivers/mtd/spi/spi_flash.c
+++ b/drivers/mtd/spi/spi_flash.c
@@ -1202,14 +1202,15 @@
 	flash->shift = (flash->dual_flash & SF_DUAL_PARALLEL_FLASH) ? 1 : 0;
 	flash->page_size = info->page_size;
 	/*
-	 * The Spansion S25FL032P and S25FL064P have 256b pages, yet use the
-	 * 0x4d00 Extended JEDEC code. The rest of the Spansion flashes with
-	 * the 0x4d00 Extended JEDEC code have 512b pages. All of the others
-	 * have 256b pages.
+	 * The Spansion S25FS512S, S25FL032P and S25FL064P have 256b pages,
+	 * yet use the 0x4d00 Extended JEDEC code. The rest of the Spansion
+	 * flashes with the 0x4d00 Extended JEDEC code have 512b pages.
+	 * All of the others have 256b pages.
 	 */
 	if (JEDEC_EXT(info) == 0x4d00) {
 		if ((JEDEC_ID(info) != 0x0215) &&
-		    (JEDEC_ID(info) != 0x0216))
+		    (JEDEC_ID(info) != 0x0216) &&
+		    (JEDEC_ID(info) != 0x0220))
 			flash->page_size = 512;
 	}
 	flash->page_size <<= flash->shift;