| Message ID | 08f3bb4e0fe5499907c4e07fa6751bfb2016f23d.1582905653.git.hns@goldelico.com (mailing list archive) |
|---|---|
| State | Mainlined |
| Headers | show |
| Series | MIPS: CI20: Add efuse driver for Ingenic JZ4780 and attach to DM9000 for stable MAC addresses | expand |
On 28/02/2020 16:00, H. Nikolaus Schaller wrote: > From: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> > > This patch brings support for the JZ4780 efuse. Currently it only exposes > a read only access to the entire 8K bits efuse memory. > > Tested-by: Mathieu Malaterre <malat@debian.org> > Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> > Signed-off-by: Mathieu Malaterre <malat@debian.org> > --- > .../ABI/testing/sysfs-driver-jz4780-efuse | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) Applied thanks, --srini
diff --git a/Documentation/ABI/testing/sysfs-driver-jz4780-efuse b/Documentation/ABI/testing/sysfs-driver-jz4780-efuse new file mode 100644 index 000000000000..bb6f5d6ceea0 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-jz4780-efuse @@ -0,0 +1,16 @@ +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