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| author | Leonard Crestez <leonard.crestez@nxp.com> | 2019-06-26 11:27:33 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-26 20:26:47 +0800 |
| commit | 5a1c17240bf1b8d2b262aaa1a4c26070d43d868f (patch) | |
| tree | 25187ce0a473bbd8db116eeb94847a41549d1cb6 /drivers/nvmem | |
| parent | 4112c8537f07aad84c00841a5a30f4acfbbc8242 (diff) | |
| download | linux-5a1c17240bf1b8d2b262aaa1a4c26070d43d868f.tar.gz linux-5a1c17240bf1b8d2b262aaa1a4c26070d43d868f.tar.bz2 linux-5a1c17240bf1b8d2b262aaa1a4c26070d43d868f.zip | |
nvmem: imx-ocotp: imx8mq is compatible with imx6 not imx7
According to NXP Reference Manuals and uboot/atf sources the OCOTP block
on imx8m behaves more like imx6 than imx7.
- Fuses can be read/written 32bits at a time (no imx7-like banking)
- The OCOTP_HW_OCOTP_TIMING register is like imx6 not imx7
Since nvmem doesn't support uboot-style "sense" and "override" this
issue only affected "write" which is very rarely used.
Fixes: 163c0dbd0cb1 ("nvmem: imx-ocotp: add support for imx8mq")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvmem')
| -rw-r--r-- | drivers/nvmem/imx-ocotp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c index 340ab336f987..42d4451e7d67 100644 --- a/drivers/nvmem/imx-ocotp.c +++ b/drivers/nvmem/imx-ocotp.c @@ -469,8 +469,8 @@ static const struct ocotp_params imx7ulp_params = { static const struct ocotp_params imx8mq_params = { .nregs = 256, - .bank_address_words = 4, - .set_timing = imx_ocotp_set_imx7_timing, + .bank_address_words = 0, + .set_timing = imx_ocotp_set_imx6_timing, }; static const struct ocotp_params imx8mm_params = { |