| Message ID | 20210622034408.24904-1-petr.vorel@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/1] arm64: dts: qcom: msm8994-angler: Disable memory@3800000 | expand |
Hi, I see no reason why reserving memory would make your phone unbootable. With that, please check your downstream dmesg and look for a line like this: "<6>[ 0.000000] cma: CMA: reserved 36 MiB at 0x0000000003800000 for cont_splash_mem" This is there for me on both 8994-kitakami and 8992-xiaomi-libra. Qualcomm devices tend to map "dynamically-allocated" regions to the same addresses every time. Konrad
diff --git a/arch/arm64/boot/dts/qcom/msm8994-angler-rev-101.dts b/arch/arm64/boot/dts/qcom/msm8994-angler-rev-101.dts index ffe1a9bd8f70..af5ff9badec9 100644 --- a/arch/arm64/boot/dts/qcom/msm8994-angler-rev-101.dts +++ b/arch/arm64/boot/dts/qcom/msm8994-angler-rev-101.dts @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only /* Copyright (c) 2015, Huawei Inc. All rights reserved. * Copyright (c) 2016, The Linux Foundation. All rights reserved. + * Copyright (c) 2021, Petr Vorel <petr.vorel@gmail.com> */ /dts-v1/; @@ -31,6 +32,10 @@ serial@f991e000 { pinctrl-1 = <&blsp1_uart2_sleep>; }; }; + + reserved-memory { + /delete-node/ memory@3800000; + }; }; &tlmm {
It prevents booting angler. cont_splash_mem was introduced in 74d6d0a145835, but the problem manifested after 86588296acbf ("fdt: Properly handle "no-map" field in the memory region"). Fixes: 74d6d0a145835 ("arm64: dts: qcom: msm8994/8994-kitakami: Fix up the memory map") Signed-off-by: Petr Vorel <petr.vorel@gmail.com> --- Hi, not sure if cont_splash_mem memory@3800000 is msm8994 specific. BTW I haven't found it in LineageOS git [1] Maybe it should go to msm8994-sony-xperia-kitakami.dtsi. And I suppose it breaks also bullhead, thus this probably should go also to msm8992-bullhead-rev-101.dts. Kind regards, Petr [1] https://github.com/LineageOS/android_kernel_sony_msm8994 arch/arm64/boot/dts/qcom/msm8994-angler-rev-101.dts | 5 +++++ 1 file changed, 5 insertions(+)