linux-kernel - [PATCH 0/3] arm64: meson: add support for A1 Power Domains

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Message-ID: <1568895064-4116-1-git-send-email-jianxin.pan@amlogic.com>
Date:   Thu, 19 Sep 2019 08:11:01 -0400
From:   Jianxin Pan <jianxin.pan@...ogic.com>
To:     Kevin Hilman <khilman@...libre.com>,
        <linux-amlogic@...ts.infradead.org>
CC:     Jianxin Pan <jianxin.pan@...ogic.com>,
        Rob Herring <robh+dt@...nel.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, Jian Hu <jian.hu@...ogic.com>,
        Hanjie Lin <hanjie.lin@...ogic.com>,
        Victor Wan <victor.wan@...ogic.com>,
        Xingyu Chen <xingyu.chen@...ogic.com>
Subject: [PATCH 0/3] arm64: meson: add support for A1 Power Domains

This patchset introduces a "Secure Power Doamin Controller". In A1/C1, power
controller registers such as PWRCTRL_FOCRSTN, PWRCTRL_PWR_OFF, PWRCTRL_MEM_PD
and PWRCTRL_ISO_EN, are in the secure domain, and should be accessed from ATF
by smc.

This patchset is based on A1 DTB series at [0].

[0]  https://lore.kernel.org/linux-amlogic/1568276370-54181-1-git-send-email-jianxin.pan@amlogic.com

Jianxin Pan (3):
  dt-bindings: power: add Amlogic secure power domains bindings
  soc: amlogic: Add support for Secure power domains controller
  arm64: dts: meson: a1: add secure power domain controller

 .../bindings/power/amlogic,meson-sec-pwrc.yaml     |  32 ++++
 arch/arm64/boot/dts/amlogic/meson-a1.dtsi          |   6 +
 drivers/soc/amlogic/Kconfig                        |  13 ++
 drivers/soc/amlogic/Makefile                       |   1 +
 drivers/soc/amlogic/meson-secure-pwrc.c            | 182 +++++++++++++++++++++
 include/dt-bindings/power/meson-a1-power.h         |  32 ++++
 6 files changed, 266 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml
 create mode 100644 drivers/soc/amlogic/meson-secure-pwrc.c
 create mode 100644 include/dt-bindings/power/meson-a1-power.h

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2.7.4