[U-Boot] [PATCH 1/2] mtd: nand: do not check R/B# for CMD_READID in nand_command(_lp)

[Masahiro Yamada]

Read ID (0x90) command does not toggle the R/B# pin.  Without this
patch, NAND_CMD_READID falls into the default: label, then R/B# is
checked by chip->dev_ready().

[masahiro: import Linux commit 3158fa0e739615769cc047d2428f30f4c3b6640e]

Signed-off-by: Masahiro Yamada <yamada.masahiro at socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon at free-electrons.com>
---

 drivers/mtd/nand/nand_base.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 3f1b3a7..776c20f 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -651,6 +651,7 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
 	case NAND_CMD_ERASE2:
 	case NAND_CMD_SEQIN:
 	case NAND_CMD_STATUS:
+	case NAND_CMD_READID:
 		return;
 
 	case NAND_CMD_RESET:
@@ -748,6 +749,7 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
 	case NAND_CMD_SEQIN:
 	case NAND_CMD_RNDIN:
 	case NAND_CMD_STATUS:
+	case NAND_CMD_READID:
 		return;
 
 	case NAND_CMD_RESET:
-- 
2.7.4