From: Boris Brezillon Date: Wed, 15 Jun 2016 11:09:51 +0000 (+0200) Subject: mtd: nand: Fix nand_command_lp() for 8bits opcodes X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fde85cfd2d07;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git mtd: nand: Fix nand_command_lp() for 8bits opcodes 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 --- diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index a74d9e4bd8b2..c06146941e16 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);