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Subject[PATCH v3 8/9] mtd: rawnand: brcmnand: BCMA controller uses command shift of 0
Date
For some odd and unexplained reason the BCMA NAND controller, albeit
revision 3.4 uses a command shift of 0 instead of 24 as it should be,
quirk that.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
drivers/mtd/nand/raw/brcmnand/brcmnand.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
index eab19df152f3..4759303ece7c 100644
--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
@@ -916,6 +916,12 @@ static void brcmnand_wr_corr_thresh(struct brcmnand_host *host, u8 val)

static inline int brcmnand_cmd_shift(struct brcmnand_controller *ctrl)
{
+ /* Kludge for the BCMA-based NAND controller which does not actually
+ * shift the command
+ */
+ if (ctrl->nand_version == 0x0304 && brcmnand_non_mmio_ops(ctrl))
+ return 0;
+
if (ctrl->nand_version < 0x0602)
return 24;
return 0;
--
2.25.1
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