From: Sibi Sankar <sibis@xxxxxxxxxxxxxx> commit ef9a5d188d663753e73a3c8e8910ceab8e9305c4 upstream. The modem firmware memory requirements vary between 32M/140M on no-lte/lte skus respectively, so fixup the modem memory region to reflect the requirements. Reviewed-by: Evan Green <evgreen@xxxxxxxxxxxx> Signed-off-by: Sibi Sankar <sibis@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/1602786476-27833-1-git-send-email-sibis@xxxxxxxxxxxxxx Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> --- This fixes boot of the modem on trogdor boards with the DTS from 5.10.y stable tree. Without this patch I run into memory assignment errors and then the modem fails to boot. arch/arm64/boot/dts/qcom/sc7180-trogdor-lte-sku.dtsi | 4 ++++ arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lte-sku.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lte-sku.dtsi index 44956e3165a1..469aad4e5948 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lte-sku.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lte-sku.dtsi @@ -9,6 +9,10 @@ &ap_sar_sensor { label = "proximity-wifi-lte"; }; +&mpss_mem { + reg = <0x0 0x86000000 0x0 0x8c00000>; +}; + &remoteproc_mpss { firmware-name = "qcom/sc7180-trogdor/modem/mba.mbn", "qcom/sc7180-trogdor/modem/qdsp6sw.mbn"; diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi index 5b2a616c6257..cb2c47f13a8a 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi @@ -39,7 +39,7 @@ atf_mem: memory@80b00000 { }; mpss_mem: memory@86000000 { - reg = <0x0 0x86000000 0x0 0x8c00000>; + reg = <0x0 0x86000000 0x0 0x2000000>; no-map; }; base-commit: 014862eecf03f58066a957027dde73cbecdf4395 -- https://chromeos.dev
