[PATCH] mtd: nand: Fix nand_command_lp() for 8bits opcodes
From: Boris Brezillon
Date: Wed Jun 15 2016 - 07:10:03 EST
8 bits opcodes should be followed by a single address cycle. Make the
2nd address cycle dependent of !nand_opcode_8bits(command).
Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
---
drivers/mtd/nand/nand_base.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 0b0dc29..c2f83236 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -745,7 +745,10 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
column >>= 1;
chip->cmd_ctrl(mtd, column, ctrl);
ctrl &= ~NAND_CTRL_CHANGE;
- chip->cmd_ctrl(mtd, column >> 8, ctrl);
+
+ /* Only ouput a single addr cycle for 8bits opcodes. */
+ if (!nand_opcode_8bits(command))
+ chip->cmd_ctrl(mtd, column >> 8, ctrl);
}
if (page_addr != -1) {
chip->cmd_ctrl(mtd, page_addr, ctrl);
--
2.7.4