[PATCH v2 0/4] arm64: meson: add support for A1 Power Domains

From: Jianxin Pan
Date: Thu Oct 10 2019 - 04:15:55 EST


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.

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@xxxxxxxxxxx

Jianxin Pan (4):
dt-bindings: power: add Amlogic secure power domains bindings
firmware: meson_sm: Add secure power domain support
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 | 42 +++++
arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 7 +
drivers/firmware/meson/meson_sm.c | 2 +
drivers/soc/amlogic/Kconfig | 13 ++
drivers/soc/amlogic/Makefile | 1 +
drivers/soc/amlogic/meson-secure-pwrc.c | 203 +++++++++++++++++++++
include/dt-bindings/power/meson-a1-power.h | 32 ++++
include/linux/firmware/meson/meson_sm.h | 2 +
8 files changed, 302 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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