[RFC][PATCH 4/4] arm64: dts: hikey: Add pstore support for HiKey
From: John Stultz <hidden>
Date: 2016-08-08 23:04:10
Also in:
linux-devicetree, lkml
Subsystem:
arm/hisilicon soc support, the rest · Maintainers:
Wei Xu, Linus Torvalds
This patch reserves some memory in the DTS and sets up a pstore device tree node to enable pstore support on HiKey. Cc: Kees Cook <redacted> Cc: Guodong Xu <redacted> Cc: Haojian Zhuang <haojian.zhuang@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 <redacted> Cc: linux-arm-kernel at lists.infradead.org Cc: devicetree at vger.kernel.org Signed-off-by: John Stultz <redacted> --- arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
index b2683e4..9140306 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts@@ -32,6 +32,7 @@ * 0x05f0,1000 - 0x05f0,1fff: Reboot reason * 0x06df,f000 - 0x06df,ffff: Mailbox message data * 0x0740,f000 - 0x0740,ffff: MCU firmware section + * 0x21f0,0000 - 0x21ff,ffff: pstore/ramoops buffer * 0x3e00,0000 - 0x3fff,ffff: OP-TEE */ memory at 0 {
@@ -40,7 +41,21 @@ <0x00000000 0x05f00000 0x00000000 0x00001000>, <0x00000000 0x05f02000 0x00000000 0x00efd000>, <0x00000000 0x06e00000 0x00000000 0x0060f000>, - <0x00000000 0x07410000 0x00000000 0x36bf0000>; + <0x00000000 0x07410000 0x00000000 0x1aaf0000>, + <0x00000000 0x22000000 0x00000000 0x1c000000>; + }; + + pstore: pstore at 0x21f00000 { + no-map; + reg = <0x0 0x21f00000 0x0 0x00100000>; /* pstore buffer */ + }; + + ramoops { + compatible = "ramoops"; + memory-region = <&pstore>; + record-size = <0x0 0x00020000>; + console-size = <0x0 0x00020000>; + ftrace-size = <0x0 0x00020000>; }; reboot-mode-syscon at 5f01000 {
--
1.9.1