Messages in this thread Patch in this message | | | From | John Stultz <> | Subject | [RFC][PATCH 3/4] arm64: dts: hikey: Add hikey support for syscon-reboot-mode | Date | Mon, 8 Aug 2016 16:03:45 -0700 |
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Add support to hikey dts for the syscon-reboot-mode driver.
After trying an approach using a sram driver and node, a number of issues cropped up which would make it so we would be duplicating a lot of extra syscon infrastructure in order to support mfds on sram. After talking with Bjorn, using the syscon driver for this seems like an better choice.
Cc: Andy Yan <andy.yan@rock-chips.com> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Haojian Zhuang <haojian.zhuang@linaro.org> Cc: Guodong Xu <guodong.xu@linaro.org> Cc: Wei Xu <xuwei5@hisilicon.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: devicetree@vger.kernel.org Signed-off-by: John Stultz <john.stultz@linaro.org> --- arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts index 8597e9b..b2683e4 100644 --- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts +++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts @@ -29,6 +29,7 @@ * Reserve below regions from memory node: * * 0x05e0,0000 - 0x05ef,ffff: MCU firmware runtime using + * 0x05f0,1000 - 0x05f0,1fff: Reboot reason * 0x06df,f000 - 0x06df,ffff: Mailbox message data * 0x0740,f000 - 0x0740,ffff: MCU firmware section * 0x3e00,0000 - 0x3fff,ffff: OP-TEE @@ -36,11 +37,26 @@ memory@0 { device_type = "memory"; reg = <0x00000000 0x00000000 0x00000000 0x05e00000>, - <0x00000000 0x05f00000 0x00000000 0x00eff000>, + <0x00000000 0x05f00000 0x00000000 0x00001000>, + <0x00000000 0x05f02000 0x00000000 0x00efd000>, <0x00000000 0x06e00000 0x00000000 0x0060f000>, <0x00000000 0x07410000 0x00000000 0x36bf0000>; }; + reboot-mode-syscon@5f01000 { + compatible = "syscon", "simple-mfd"; + reg = <0x0 0x05f01000 0x0 0x00001000>; + + reboot-mode@0 { + compatible = "syscon-reboot-mode"; + offset = <0x0>; + + mode-normal = <0x77665501>; + mode-bootloader = <0x77665500>; + mode-recovery = <0x77665502>; + }; + }; + soc { spi0: spi@f7106000 { status = "ok"; -- 1.9.1
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