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mtd: rawnand: brcmnand: BCMA controller uses command shift of 0

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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>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220107184614.2670254-9-f.fainelli@gmail.com
This commit is contained in:
Florian Fainelli 2022-01-07 10:46:13 -08:00 committed by Miquel Raynal
parent 8e5913005f
commit 5abd37f6e9
1 changed files with 6 additions and 0 deletions
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6
drivers/mtd/nand/raw/brcmnand/brcmnand.c
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@ -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;