From: Jianxin Pan <jianxin.pan@amlogic.com>
To: Kevin Hilman <khilman@baylibre.com>, <linux-amlogic@lists.infradead.org>
Cc: devicetree@vger.kernel.org, Hanjie Lin <hanjie.lin@amlogic.com>,
Victor Wan <victor.wan@amlogic.com>,
Jianxin Pan <jianxin.pan@amlogic.com>,
linux-pm@vger.kernel.org,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
Neil Armstrong <narmstrong@baylibre.com>,
linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
Jian Hu <jian.hu@amlogic.com>,
Xingyu Chen <xingyu.chen@amlogic.com>,
linux-arm-kernel@lists.infradead.org,
Jerome Brunet <jbrunet@baylibre.com>
Subject: [PATCH v6 0/4] arm64: meson: add support for A1 Power Domains
Date: Wed, 15 Jan 2020 19:30:27 +0800 [thread overview]
Message-ID: <1579087831-94965-1-git-send-email-jianxin.pan@amlogic.com> (raw)
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.
The secure-pwrc will not be probed before the secure watchdog patchset is merged
at [6], which adds of_platform_default_populate() in meson_sm_probe().
Changes since v5 at [4]:
- Move sec-pwrc to child node of secure-monitor according to Rob's suggestion
at [5]
Changes since v4 at [3]:
- add SM_A1_ prefix for PWRC_SET/GET
- rename variable and update comments
Changes since v3 at [2]:
- remove phandle to secure-monitor node
Changes since v2 at [1]:
- update domain id
- include dt-bindings in dts
Changes since v1 at [0]:
- use APIs from sm driver
- rename pwrc_secure_get_power as Kevin suggested
- add comments for always on domains
- replace arch_initcall_sync with builtin_platform_driver
- fix coding style
[0] https://lore.kernel.org/linux-amlogic/1568895064-4116-1-git-send-email-jianxin.pan@amlogic.com
[1] https://lore.kernel.org/linux-amlogic/1570695678-42623-1-git-send-email-jianxin.pan@amlogic.com
[2] https://lore.kernel.org/linux-amlogic/1571391167-79679-1-git-send-email-jianxin.pan@amlogic.com
[3] https://lore.kernel.org/linux-amlogic/1572868028-73076-1-git-send-email-jianxin.pan@amlogic.com
[4] https://lore.kernel.org/linux-amlogic/1573532930-39505-2-git-send-email-jianxin.pan@amlogic.com
[5] https://lore.kernel.org/linux-amlogic/07f0ed9d-0b1a-d84f-de8b-1967e56bbd21@amlogic.com/
[6] https://lore.kernel.org/linux-amlogic/1578973527-4759-3-git-send-email-xingyu.chen@amlogic.com
Jianxin Pan (4):
firmware: meson_sm: Add secure power domain support
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 | 40 ++++
arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 6 +
drivers/firmware/meson/meson_sm.c | 2 +
drivers/soc/amlogic/Kconfig | 13 ++
drivers/soc/amlogic/Makefile | 1 +
drivers/soc/amlogic/meson-secure-pwrc.c | 204 +++++++++++++++++++++
include/dt-bindings/power/meson-a1-power.h | 32 ++++
include/linux/firmware/meson/meson_sm.h | 2 +
8 files changed, 300 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
--
2.7.4
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next reply other threads:[~2020-01-15 11:31 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-15 11:30 Jianxin Pan [this message]
2020-01-15 11:30 ` [PATCH v6 1/4] firmware: meson_sm: Add secure power domain support Jianxin Pan
2020-01-15 11:30 ` [PATCH v6 2/4] dt-bindings: power: add Amlogic secure power domains bindings Jianxin Pan
2020-01-15 20:18 ` Rob Herring
2020-02-20 13:27 ` Rob Herring
2020-02-21 7:14 ` Jianxin Pan
2020-01-15 11:30 ` [PATCH v6 3/4] soc: amlogic: Add support for Secure power domains controller Jianxin Pan
2020-01-15 11:30 ` [PATCH v6 4/4] arm64: dts: meson: a1: add secure power domain controller Jianxin Pan
2020-02-14 19:14 ` [PATCH v6 0/4] arm64: meson: add support for A1 Power Domains Kevin Hilman
2020-02-14 22:41 ` patchwork-bot+linux-amlogic
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