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Message-Id: <20190621180026.25071-1-yamada.masahiro@socionext.com>
Date: Sat, 22 Jun 2019 03:00:26 +0900
From: Masahiro Yamada <yamada.masahiro@...ionext.com>
To: linux-arm-kernel@...ts.infradead.org
Cc: Masahiro Yamada <yamada.masahiro@...ionext.com>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>
Subject: [PATCH] arm64: dts: uniphier: add reserved-memory for secure memory
The memory regions specified by /memreserve/ are passed to
early_init_dt_reserve_memory_arch() with nomap=false, so it is
not suitable for reserving memory for Trusted Firmware-A etc.
Use the more robust /reserved-memory node with the no-map property
to prevent the kernel from mapping it.
Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---
arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi | 13 +++++++++++--
arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi | 13 +++++++++++--
arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi | 13 +++++++++++--
3 files changed, 33 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
index e32f8aef40bf..8ec40a0b8b1e 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
@@ -8,8 +8,6 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/gpio/uniphier-gpio.h>
-/memreserve/ 0x80000000 0x02000000;
-
/ {
compatible = "socionext,uniphier-ld11";
#address-cells = <2>;
@@ -110,6 +108,17 @@
<1 10 4>;
};
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ secure-memory@...00000 {
+ reg = <0x0 0x81000000 0x0 0x01000000>;
+ no-map;
+ };
+ };
+
soc@0 {
compatible = "simple-bus";
#address-cells = <1>;
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
index 0e1b30656fea..b658f2b641e2 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
@@ -9,8 +9,6 @@
#include <dt-bindings/gpio/uniphier-gpio.h>
#include <dt-bindings/thermal/thermal.h>
-/memreserve/ 0x80000000 0x02000000;
-
/ {
compatible = "socionext,uniphier-ld20";
#address-cells = <2>;
@@ -215,6 +213,17 @@
};
};
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ secure-memory@...00000 {
+ reg = <0x0 0x81000000 0x0 0x01000000>;
+ no-map;
+ };
+ };
+
soc@0 {
compatible = "simple-bus";
#address-cells = <1>;
diff --git a/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi b/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi
index d3863157ddd9..d6f6cee4d549 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi
@@ -8,8 +8,6 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/gpio/uniphier-gpio.h>
-/memreserve/ 0x80000000 0x02000000;
-
/ {
compatible = "socionext,uniphier-pxs3";
#address-cells = <2>;
@@ -138,6 +136,17 @@
<1 10 4>;
};
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ secure-memory@...00000 {
+ reg = <0x0 0x81000000 0x0 0x01000000>;
+ no-map;
+ };
+ };
+
soc@0 {
compatible = "simple-bus";
#address-cells = <1>;
--
2.17.1
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