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Message-ID: <20220804165317.29086-1-ddrokosov@sberdevices.ru>
Date: Thu, 4 Aug 2022 16:52:59 +0000
From: Dmitry Rokosov <DDRokosov@...rdevices.ru>
To: "robh+dt@...nel.org" <robh+dt@...nel.org>,
"krzysztof.kozlowski+dt@...aro.org"
<krzysztof.kozlowski+dt@...aro.org>,
"narmstrong@...libre.com" <narmstrong@...libre.com>,
"khilman@...libre.com" <khilman@...libre.com>,
"jbrunet@...libre.com" <jbrunet@...libre.com>,
"martin.blumenstingl@...glemail.com"
<martin.blumenstingl@...glemail.com>
CC: "linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-amlogic@...ts.infradead.org"
<linux-amlogic@...ts.infradead.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
kernel <kernel@...rdevices.ru>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Dmitry Rokosov <DDRokosov@...rdevices.ru>
Subject: [PATCH v1] arm64: dts: meson-axg: reserve memory region for Amlogic
TrustOS
For the all AXG SoC based boards, which run Amlogic vendor ATF and
TrustOS this memory region 0x5300000-0x6300000 is reserved by BL32,
so tag it as no-map in the kernel iomem.
Signed-off-by: Dmitry Rokosov <ddrokosov@...rdevices.ru>
---
arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index 3f5254eeb47b..1fa0d3805969 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -142,6 +142,12 @@ secmon_reserved: secmon@...0000 {
reg = <0x0 0x05000000 0x0 0x300000>;
no-map;
};
+
+ /* 16 MiB reserved for Amlogic Trust OS (BL32) */
+ secos_reserved: secos@...0000 {
+ reg = <0x0 0x05300000 0x0 0x1000000>;
+ no-map;
+ };
};
scpi {
--
2.36.0
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