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From: Xingyu Chen <xingyu.chen@amlogic.com>
To: Wim Van Sebroeck <wim@linux-watchdog.org>,
	Guenter Roeck <linux@roeck-us.net>,
	Kevin Hilman <khilman@baylibre.com>,
	Neil Armstrong <narmstrong@baylibre.com>
Cc: Xingyu Chen <xingyu.chen@amlogic.com>,
	Rob Herring <robh+dt@kernel.org>,
	Jerome Brunet <jbrunet@baylibre.com>,
	Qianggui Song <qianggui.song@amlogic.com>,
	Jianxin Pan <jianxin.pan@amlogic.com>,
	Jian Hu <jian.hu@amlogic.com>, <linux-watchdog@vger.kernel.org>,
	<linux-amlogic@lists.infradead.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>
Subject: [PATCH 0/4] add meson secure watchdog driver
Date: Sat, 12 Oct 2019 18:05:17 +0800
Message-ID: <1570874721-36077-1-git-send-email-xingyu.chen@amlogic.com> (raw)

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


             reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-12 10:05 Xingyu Chen [this message]
2019-10-12 10:05 ` [PATCH 1/4] firmware: meson_sm: add new SMC ID support for accessing secure watchdog Xingyu Chen
2019-10-12 10:05 ` [PATCH 2/4] dt-bindings: watchdog: add new binding for meson " Xingyu Chen
2019-10-12 10:05 ` [PATCH 3/4] watchdog: add meson secure watchdog driver Xingyu Chen
2019-10-12 14:29   ` Guenter Roeck
2019-10-14 11:42     ` Xingyu Chen
2019-10-14 13:49       ` Guenter Roeck
2019-10-15  5:45         ` Xingyu Chen
2019-10-12 10:05 ` [PATCH 4/4] arm64: dts: a1: add secure watchdog controller Xingyu Chen

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