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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /Documentation/ABI/testing/sysfs-driver-jz4780-efuse | |
| parent | Initial commit. (diff) | |
| download | linux-upstream.tar.xz linux-upstream.zip | |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-driver-jz4780-efuse')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-jz4780-efuse | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-jz4780-efuse b/Documentation/ABI/testing/sysfs-driver-jz4780-efuse new file mode 100644 index 000000000..4cf595d68 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-jz4780-efuse @@ -0,0 +1,20 @@ +What: /sys/devices/*/<our-device>/nvmem +Date: December 2017 +Contact: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> +Description: read-only access to the efuse on the Ingenic JZ4780 SoC + The SoC has a one time programmable 8K efuse that is + split into segments. The driver supports read only. + The segments are: + + ===== ======== ================= + 0x000 64 bit Random Number + 0x008 128 bit Ingenic Chip ID + 0x018 128 bit Customer ID + 0x028 3520 bit Reserved + 0x1E0 8 bit Protect Segment + 0x1E1 2296 bit HDMI Key + 0x300 2048 bit Security boot key + ===== ======== ================= + +Users: any user space application which wants to read the Chip + and Customer ID |