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Message-ID: <1570874721-36077-1-git-send-email-xingyu.chen@amlogic.com>
Date: Sat, 12 Oct 2019 18:05:17 +0800
From: Xingyu Chen <xingyu.chen@...ogic.com>
To: Wim Van Sebroeck <wim@...ux-watchdog.org>,
Guenter Roeck <linux@...ck-us.net>,
Kevin Hilman <khilman@...libre.com>,
Neil Armstrong <narmstrong@...libre.com>
CC: Xingyu Chen <xingyu.chen@...ogic.com>,
Rob Herring <robh+dt@...nel.org>,
Jerome Brunet <jbrunet@...libre.com>,
Qianggui Song <qianggui.song@...ogic.com>,
Jianxin Pan <jianxin.pan@...ogic.com>,
Jian Hu <jian.hu@...ogic.com>,
<linux-watchdog@...r.kernel.org>,
<linux-amlogic@...ts.infradead.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH 0/4] add meson secure watchdog driver
The watchdog controller on the Meson-A/C series SoCs is moved to secure world,
We have to call SMC instruction to trap the ATF for watchdog operation. These
operations are different from previous SoCs, so we introduce a new watchdog
driver to support this kind of SoCs.
Xingyu Chen (4):
firmware: meson_sm: add new SMC ID support for accessing secure
watchdog
dt-bindings: watchdog: add new binding for meson secure watchdog
watchdog: add meson secure watchdog driver
arm64: dts: a1: add secure watchdog controller
.../bindings/watchdog/amlogic,meson-sec-wdt.yaml | 34 ++++
arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 6 +
drivers/firmware/meson/meson_sm.c | 1 +
drivers/watchdog/Kconfig | 16 ++
drivers/watchdog/Makefile | 1 +
drivers/watchdog/meson_sec_wdt.c | 205 +++++++++++++++++++++
include/linux/firmware/meson/meson_sm.h | 1 +
7 files changed, 264 insertions(+)
create mode 100644 Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml
create mode 100644 drivers/watchdog/meson_sec_wdt.c
--
2.7.4
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