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authorSimon Arlott2015-11-16 22:05:39 +0000
committerBrian Norris2015-11-30 17:52:29 -0800
commit0401669797488feb055521cade69b1d0e81669db (patch)
tree900f69f0ebc7424a2d71458ec0f39297ac6b4f09 /drivers/mtd/nand/brcmnand
parentfe7579d6122f2869d00b55842bca9e2a9be51607 (diff)
brcmnand: Clear EXT_ADDR error registers in PIO mode
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 <simon@fire.lp0.eu> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'drivers/mtd/nand/brcmnand')
-rw-r--r--drivers/mtd/nand/brcmnand/brcmnand.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c
index 626a80eb76a1..8feee1e489cb 100644
--- a/drivers/mtd/nand/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/brcmnand/brcmnand.c
@@ -1405,6 +1405,8 @@ 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));