From: Viacheslav Bocharov <adeep@lexina.in>
To: Neil Armstrong <neil.armstrong@linaro.org>,
Kevin Hilman <khilman@baylibre.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
linux-amlogic@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH 0/4] RFC: firmware: meson-sm: add chipid sysfs export
Date: Thu, 2 Nov 2023 10:49:12 +0300 [thread overview]
Message-ID: <20231102074916.3280809-1-adeep@lexina.in> (raw)
The Amlogic Meson SoC Secure Monitor implements a call to retrieve an
unique SoC ID starting from the GX Family and all new families.
But GX-family chips (e.g. GXB, GXL and newer) supports also 128-bit
chip ID. 128-bit chip ID consists 32-bit SoC version and 96-bit OTP data.
This patchset introduces an exported sysfs string for the 128-bit chipid,
considering a check for the version of the returned value. If the chip
does not support version 2 of the call, it falls back to (where possible)
information from the meson-gx-socinfo driver to supplement the data from OTP.
Viacheslav Bocharov (4):
firmware: meson-sm: change sprintf to scnprintf
firmware: meson_sm: Add chipid number sysfs entry
soc: amlogic: meson-gx-socinfo: export socinfo for use in other
modules
firmware: meson_sm: use meson_gx_socinfo for compatibility
drivers/firmware/meson/meson_sm.c | 72 +++++++++++++++++++++++++-
drivers/soc/amlogic/meson-gx-socinfo.c | 34 +++++++-----
2 files changed, 90 insertions(+), 16 deletions(-)
--
2.34.1
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next reply other threads:[~2023-11-02 7:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-02 7:49 Viacheslav Bocharov [this message]
2023-11-02 7:49 ` [PATCH 1/4] firmware: meson-sm: change sprintf to scnprintf Viacheslav Bocharov
2023-11-02 7:49 ` [PATCH 2/4] firmware: meson_sm: Add chipid number sysfs entry Viacheslav Bocharov
2023-11-02 22:11 ` kernel test robot
2023-11-02 7:49 ` [PATCH 3/4] soc: amlogic: meson-gx-socinfo: export socinfo for use in other modules Viacheslav Bocharov
2023-11-02 9:23 ` Krzysztof Kozlowski
2023-11-02 7:49 ` [PATCH 4/4] firmware: meson_sm: use meson_gx_socinfo for compatibility Viacheslav Bocharov
2023-11-02 9:26 ` Krzysztof Kozlowski
2023-11-02 10:02 ` Viacheslav
2023-11-03 0:22 ` kernel test robot
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