| Message ID | 20230519133844.23512-4-quic_kathirav@quicinc.com |
|---|---|
| State | Accepted |
| Commit | 0196b041aeec788e1bc516b6d24d9c59ea59b1a6 |
| Headers | show |
| Series | None | expand |
diff --git a/arch/arm64/boot/dts/qcom/ipq5332.dtsi b/arch/arm64/boot/dts/qcom/ipq5332.dtsi index 753581e60604..ba1d20fd8059 100644 --- a/arch/arm64/boot/dts/qcom/ipq5332.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq5332.dtsi @@ -114,6 +114,16 @@ #size-cells = <2>; ranges; + bootloader@4a100000 { + reg = <0x0 0x4a100000 0x0 0x400000>; + no-map; + }; + + sbl@4a500000 { + reg = <0x0 0x4a500000 0x0 0x100000>; + no-map; + }; + tz_mem: tz@4a600000 { reg = <0x0 0x4a600000 0x0 0x200000>; no-map; @@ -121,7 +131,7 @@ smem@4a800000 { compatible = "qcom,smem"; - reg = <0x0 0x4a800000 0x0 0x00100000>; + reg = <0x0 0x4a800000 0x0 0x100000>; no-map; hwlocks = <&tcsr_mutex 0>;
In IPQ SoCs, bootloader will collect the system RAM contents upon crash for the post morterm analysis. If we don't reserve the memory region used by bootloader, obviously linux will consume it and upon next boot on crash, bootloader will be loaded in the same region, which will lead to loose some of the data, sometimes we may miss out critical information. So lets reserve the region used by the bootloader. Similarly SBL copies some data into the reserved region and it will be used in the crash scenario. So reserve 1MB for SBL as well. While at it, drop the size padding in the smem memory region. Signed-off-by: Kathiravan T <quic_kathirav@quicinc.com> --- Changes in V3: - s/u-boot/bootloader/ in commit msg and in the code as suggested by Bhupesh Changes in V2: - Dropped the size padding in smem memory region arch/arm64/boot/dts/qcom/ipq5332.dtsi | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)