[PATCH v1 0/6] misc: add reboot mode driver

Andy Yan
2015-12-22T09:02:29Z

This driver parse the reboot commands like "reboot loader"
and "reboot recovery" to get a boot mode described in the
device tree , then call the vendor specific write interfae
to store the boot mode in some place like special register
or sram , which can be read by the bootloader after system
reboot.

This is commonly done on Android based devices, in order to
reboot the device into fastboot or recovery mode.

Before this patch , I have try some hack on[0], and then found
John Stultz also doing the same work[1].

As John is busy these days, I go on with this work.

[0]https://patchwork.kernel.org/patch/7647751/
[1]https://patchwork.kernel.org/patch/7802391/

Changes in v1:
- fix the embarrassed compile warning
- correct the maskrom magic number
- check for the normal reboot
- correct the maskrom magic number
- use macro defined in rockchip_boot-mode.h for reboot-mode DT node

Andy Yan (6):
dt-bindings: misc: add document for reboot-mode driver
dt-bindings: soc: add document for rockchip reboot-mode driver
misc: add reboot mode driver
soc: rockchip: add reboot mode driver
ARM: dts: rockchip: add reboot-mode node
ARM64: dts: rockchip: add reboot-mode node

.../devicetree/bindings/misc/reboot-mode.txt | 41 +++++++++
.../bindings/soc/rockchip/rockchip,reboot-mode.txt | 39 +++++++++
arch/arm/boot/dts/rk3288.dtsi | 26 ++++++
arch/arm/boot/dts/rk3xxx.dtsi | 26 ++++++
arch/arm64/boot/dts/rockchip/rk3368.dtsi | 26 ++++++
drivers/misc/Kconfig | 7 ++
drivers/misc/Makefile | 1 +
drivers/misc/reboot_mode.c | 96 ++++++++++++++++++++++
drivers/soc/rockchip/Kconfig | 9 ++
drivers/soc/rockchip/Makefile | 1 +
drivers/soc/rockchip/reboot.c | 68 +++++++++++++++
include/dt-bindings/soc/rockchip_boot-mode.h | 30 +++++++
include/linux/reboot.h | 4 +-
13 files changed, 373 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/misc/reboot-mode.txt
create mode 100644 Documentation/devicetree/bindings/soc/rockchip/rockchip,reboot-mode.txt
create mode 100644 drivers/misc/reboot_mode.c
create mode 100644 drivers/soc/rockchip/reboot.c
create mode 100644 include/dt-bindings/soc/rockchip_boot-mode.h

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1.9.1