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From: Macpaul Lin <macpaul.lin@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Fabien Parent <fparent@baylibre.com>,
	<devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>
Cc: Miles Chen <miles.chen@mediatek.com>,
	Bear Wang <bear.wang@mediatek.com>,
	Pablo Sun <pablo.sun@mediatek.com>,
	Macpaul Lin <macpaul.lin@mediatek.com>,
	Macpaul Lin <macpaul@gmail.com>, <linux-usb@vger.kernel.org>,
	<stable@vger.kernel.org>
Subject: [PATCH] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon
Date: Thu, 22 Sep 2022 17:16:48 +0800	[thread overview]
Message-ID: <20220922091648.2821-1-macpaul.lin@mediatek.com> (raw)

The size of device tree node secmon (bl31_secmon_reserved) was
incorrect. It should be increased to 2MiB (0x200000).

The origin setting will cause some abnormal behavior due to
trusted-firmware-a and related firmware didn't load correctly.
The incorrect behavior may vary because of different software stacks.
For example, it will cause build error in some Yocto project because
it will check if there was enough memory to load trusted-firmware-a
to the reserved memory.

Cc: stable@vger.kernel.org      # v5.19
Fixes: 6147314aeedc ("arm64: dts: mediatek: Add device-tree for MT8195 Demo board")
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
---
 arch/arm64/boot/dts/mediatek/mt8195-demo.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
index 4fbd99eb496a..dec85d254838 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
@@ -56,10 +56,10 @@
 		#size-cells = <2>;
 		ranges;
 
-		/* 192 KiB reserved for ARM Trusted Firmware (BL31) */
+		/* 2 MiB reserved for ARM Trusted Firmware (BL31) */
 		bl31_secmon_reserved: secmon@54600000 {
 			no-map;
-			reg = <0 0x54600000 0x0 0x30000>;
+			reg = <0 0x54600000 0x0 0x200000>;
 		};
 
 		/* 12 MiB reserved for OP-TEE (BL32)
-- 
2.18.0


WARNING: multiple messages have this Message-ID (diff)
From: Macpaul Lin <macpaul.lin@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Fabien Parent <fparent@baylibre.com>,
	<devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>
Cc: Miles Chen <miles.chen@mediatek.com>,
	Bear Wang <bear.wang@mediatek.com>,
	Pablo Sun <pablo.sun@mediatek.com>,
	Macpaul Lin <macpaul.lin@mediatek.com>,
	Macpaul Lin <macpaul@gmail.com>, <linux-usb@vger.kernel.org>,
	<stable@vger.kernel.org>
Subject: [PATCH] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon
Date: Thu, 22 Sep 2022 17:16:48 +0800	[thread overview]
Message-ID: <20220922091648.2821-1-macpaul.lin@mediatek.com> (raw)

The size of device tree node secmon (bl31_secmon_reserved) was
incorrect. It should be increased to 2MiB (0x200000).

The origin setting will cause some abnormal behavior due to
trusted-firmware-a and related firmware didn't load correctly.
The incorrect behavior may vary because of different software stacks.
For example, it will cause build error in some Yocto project because
it will check if there was enough memory to load trusted-firmware-a
to the reserved memory.

Cc: stable@vger.kernel.org      # v5.19
Fixes: 6147314aeedc ("arm64: dts: mediatek: Add device-tree for MT8195 Demo board")
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
---
 arch/arm64/boot/dts/mediatek/mt8195-demo.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
index 4fbd99eb496a..dec85d254838 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
@@ -56,10 +56,10 @@
 		#size-cells = <2>;
 		ranges;
 
-		/* 192 KiB reserved for ARM Trusted Firmware (BL31) */
+		/* 2 MiB reserved for ARM Trusted Firmware (BL31) */
 		bl31_secmon_reserved: secmon@54600000 {
 			no-map;
-			reg = <0 0x54600000 0x0 0x30000>;
+			reg = <0 0x54600000 0x0 0x200000>;
 		};
 
 		/* 12 MiB reserved for OP-TEE (BL32)
-- 
2.18.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2022-09-22  9:17 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-22  9:16 Macpaul Lin [this message]
2022-09-22  9:16 ` [PATCH] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon Macpaul Lin
2022-09-26  7:05 ` Miles Chen
2022-09-26  7:05   ` Miles Chen
2022-09-27  4:00   ` Macpaul Lin
2022-09-27  4:00     ` Macpaul Lin
2022-09-28  1:47     ` [PATCH] arm64: dts: mediatek: mt8195-demo: fix the memory size of Miles Chen
2022-09-28  1:47       ` Miles Chen
2022-09-29  8:47 ` [PATCH v2] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon Macpaul Lin
2022-09-29  8:47   ` Macpaul Lin
2022-10-24  6:18   ` Macpaul Lin
2022-10-24  6:18     ` Macpaul Lin

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