The ECC fuse on 8ULP can't be written twice. If any user did it, the
ECC value would be wrong then cause accessing problem to the fuse.
The patch will lock the ECC fuse word to avoid this problem.
For iMX9, the OTP controller automatically prevents an ECC fuse word to
be written twice. So it does not need the setting.
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Since new 8ULP A1 S400 FW (v0.0.8-e329b760) can support to read
more fuses: like PMU trim, Test flow/USB, GP1-5, GP8-10. Update
the u-boot driver for the new mapping.
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Alice Guo <alice.guo@nxp.com>
Sentinel have read access of OTP shadow register 0-511, and fsb have
read access of shadow 0-51/312-511.
Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
i.MX93 fuse can be accessed through FSB and s400-api. Add mapping tables
for i.MX93. The offset address of FSB accessing OTP shadow registers is
different between i.MX8ULP and i.MX93, so use macro to define the offset
address instead of hardcode.
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
The i.MX93 platform wants to reuse drivers/misc/imx8ulp/fuse.c. Moving
fuse.c from the folder imx8ulp to sentinel makes it can be used by other
platforms.
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-07-26 11:29:01 +02:00
Renamed from drivers/misc/imx8ulp/fuse.c (Browse further)
