If an error occurs in flash above 4GB in PIO mode then the EXT_ADDR
registers will be set to the location of the error and never cleared.
Reset them to 0 before reading.
Signed-off-by: Simon Arlott <si...@fire.lp0.eu>
---
drivers/mtd/nand/brcmnand/brcmnand.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c
b/drivers/mtd/nand/brcmnand/brcmnand.c
index 12c6190..2c8f67f 100644
--- a/drivers/mtd/nand/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/brcmnand/brcmnand.c
@@ -1400,6 +1400,8 @@ static int brcmnand_read_by_pio(struct mtd_info *mtd,
struct nand_chip *chip,
/* Clear error addresses */
brcmnand_write_reg(ctrl, BRCMNAND_UNCORR_ADDR, 0);
brcmnand_write_reg(ctrl, BRCMNAND_CORR_ADDR, 0);
+ brcmnand_write_reg(ctrl, BRCMNAND_UNCORR_EXT_ADDR, 0);
+ brcmnand_write_reg(ctrl, BRCMNAND_CORR_EXT_ADDR, 0);
brcmnand_write_reg(ctrl, BRCMNAND_CMD_EXT_ADDRESS,
(host->cs << 16) | ((addr >> 32) & 0xffff));
--
2.1.4
--
Simon Arlott
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
