linux-kernel - [PATCH v3 6/7] arm64: dts: qcom: msm8976: Split lpass region

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Date:   Sat, 12 Aug 2023 13:24:49 +0200
From:   Adam Skladowski <a39.skl@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
        Adam Skladowski <a39.skl@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        AngeloGioacchino Del Regno <kholk11@...il.com>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 6/7] arm64: dts: qcom: msm8976: Split lpass region

MSM8976 downstream dts define reloc region which is used by pil-tz
to load both wcnss and lpass, on mainline however we might not be
able to do it and we need separate regions(also validating dts might get
problematic if we had to put memory-region(rproc node) per device).
Luckily it seems size and entry points in firmware headers appears
to be static across multiple devices including Sony Loire platform
and Xiaomi Redmi Note 3 Pro this should let us fit in first ~17MB
Split lpass region(reloc on downstream) into two separate regions.

Signed-off-by: Adam Skladowski <a39.skl@...il.com>
---
 arch/arm64/boot/dts/qcom/msm8976.dtsi | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8976.dtsi b/arch/arm64/boot/dts/qcom/msm8976.dtsi
index ab76806317a7..7385d5edec04 100644
--- a/arch/arm64/boot/dts/qcom/msm8976.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8976.dtsi
@@ -338,7 +338,12 @@ mpss_mem: mpss@...00000 {
 		};
 
 		lpass_mem: lpass@...00000 {
-			reg = <0x0 0x8c200000 0x0 0x1800000>;
+			reg = <0x0 0x8c200000 0x0 0x1000000>;
+			no-map;
+		};
+
+		wcnss_fw_mem: wcnss@...00000 {
+			reg = <0x0 0x8d200000 0x0 0x800000>;
 			no-map;
 		};
 
-- 
2.41.0