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 <keescook@xxxxxxxxxxxx>
Cc: Guodong Xu <guodong.xu@xxxxxxxxxx>
Cc: Haojian Zhuang <haojian.zhuang@xxxxxxxxxx>
Cc: Wei Xu <xuwei5@xxxxxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
---
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@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@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@5f01000 {
--
1.9.1
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