[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <1b73eead5d7237cddfcbe835bfbf31ae89fb6b61.1581880851.git.hns@goldelico.com>
Date: Sun, 16 Feb 2020 20:20:46 +0100
From: "H. Nikolaus Schaller" <hns@...delico.com>
To: PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>,
Paul Cercueil <paul@...pouillou.net>,
Mathieu Malaterre <malat@...ian.org>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Ralf Baechle <ralf@...ux-mips.org>,
Paul Burton <paulburton@...nel.org>,
Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jonathan Cameron <Jonathan.Cameron@...wei.com>,
"H. Nikolaus Schaller" <hns@...delico.com>,
Krzysztof Kozlowski <krzk@...nel.org>,
Kees Cook <keescook@...omium.org>,
Andi Kleen <ak@...ux.intel.com>,
Geert Uytterhoeven <geert+renesas@...der.be>
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
linux-mips@...r.kernel.org, letux-kernel@...nphoenux.org,
kernel@...a-handheld.com
Subject: [RFC v3 4/9] Documentation: ABI: nvmem: add documentation for JZ4780 efuse ABI
From: PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>
This patch brings support for the JZ4780 efuse. Currently it only expose
a read only access to the entire 8K bits efuse memory.
Tested-by: Mathieu Malaterre <malat@...ian.org>
Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>
Signed-off-by: Mathieu Malaterre <malat@...ian.org>
---
.../ABI/testing/sysfs-driver-jz4780-efuse | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-driver-jz4780-efuse
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@...il.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
--
2.23.0
Powered by blists - more mailing lists