| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192 |
- From 0cd4e90cb2dec02ff859f5c98f744f43a23aea65 Mon Sep 17 00:00:00 2001
- From: Vignesh Viswanathan <[email protected]>
- Date: Fri, 26 May 2023 16:36:53 +0530
- Subject: [PATCH] arm64: dts: qcom: add few more reserved memory region
- 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 reserved memory region,
- wherever applicable.
- Signed-off-by: Vignesh Viswanathan <[email protected]>
- Signed-off-by: Bjorn Andersson <[email protected]>
- Link: https://lore.kernel.org/r/[email protected]
- ---
- arch/arm64/boot/dts/qcom/ipq6018.dtsi | 16 +++++++++++++---
- arch/arm64/boot/dts/qcom/ipq8074.dtsi | 14 ++++++++++++--
- 2 files changed, 25 insertions(+), 5 deletions(-)
- --- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
- +++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
- @@ -154,18 +154,28 @@
- no-map;
- };
-
- + bootloader@4a100000 {
- + reg = <0x0 0x4a100000 0x0 0x400000>;
- + no-map;
- + };
- +
- + sbl@4a500000 {
- + reg = <0x0 0x4a500000 0x0 0x100000>;
- + no-map;
- + };
- +
- tz: memory@4a600000 {
- - reg = <0x0 0x4a600000 0x0 0x00400000>;
- + reg = <0x0 0x4a600000 0x0 0x400000>;
- no-map;
- };
-
- smem_region: memory@4aa00000 {
- - reg = <0x0 0x4aa00000 0x0 0x00100000>;
- + reg = <0x0 0x4aa00000 0x0 0x100000>;
- no-map;
- };
-
- q6_region: memory@4ab00000 {
- - reg = <0x0 0x4ab00000 0x0 0x05500000>;
- + reg = <0x0 0x4ab00000 0x0 0x5500000>;
- no-map;
- };
- };
- --- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
- +++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
- @@ -85,17 +85,27 @@
- #size-cells = <2>;
- ranges;
-
- + bootloader@4a600000 {
- + reg = <0x0 0x4a600000 0x0 0x400000>;
- + no-map;
- + };
- +
- + sbl@4aa00000 {
- + reg = <0x0 0x4aa00000 0x0 0x100000>;
- + no-map;
- + };
- +
- smem@4ab00000 {
- compatible = "qcom,smem";
- - reg = <0x0 0x4ab00000 0x0 0x00100000>;
- + reg = <0x0 0x4ab00000 0x0 0x100000>;
- no-map;
-
- hwlocks = <&tcsr_mutex 3>;
- };
-
- memory@4ac00000 {
- + reg = <0x0 0x4ac00000 0x0 0x400000>;
- no-map;
- - reg = <0x0 0x4ac00000 0x0 0x00400000>;
- };
- };
-
|
