diff options
Diffstat (limited to 'target/linux/bcm47xx/patches-5.15/107-v5.18-mtd-rawnand-brcmnand-BCMA-controller-uses-command-shift-of-0.patch')
| -rw-r--r-- | target/linux/bcm47xx/patches-5.15/107-v5.18-mtd-rawnand-brcmnand-BCMA-controller-uses-command-shift-of-0.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/bcm47xx/patches-5.15/107-v5.18-mtd-rawnand-brcmnand-BCMA-controller-uses-command-shift-of-0.patch b/target/linux/bcm47xx/patches-5.15/107-v5.18-mtd-rawnand-brcmnand-BCMA-controller-uses-command-shift-of-0.patch new file mode 100644 index 0000000000..39f34aab29 --- /dev/null +++ b/target/linux/bcm47xx/patches-5.15/107-v5.18-mtd-rawnand-brcmnand-BCMA-controller-uses-command-shift-of-0.patch @@ -0,0 +1,29 @@ +From: Florian Fainelli <f.fainelli@gmail.com> +Subject: [PATCH v3 8/9] mtd: rawnand: brcmnand: BCMA controller uses command shift of 0 +Date: Fri, 07 Jan 2022 10:46:13 -0800 +Content-Type: text/plain; charset="utf-8" + +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(+) + +--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c ++++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c +@@ -913,6 +913,12 @@ static void brcmnand_wr_corr_thresh(stru + + 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; |