From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Gregory Clement <gregory.clement@bootlin.com>,
Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org,
Antoine Tenart <antoine.tenart@bootlin.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Maxime Chevallier <maxime.chevallier@bootlin.com>,
Nadav Haklai <nadavh@marvell.com>,
Rob Herring <robh+dt@kernel.org>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Victor Gu <xigu@marvell.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: dts: marvell: armada-37xx: reserve memory for ATF
Date: Sat, 21 Apr 2018 16:03:42 +0200 [thread overview]
Message-ID: <20180421140342.25082-1-miquel.raynal@bootlin.com> (raw)
From: Victor Gu <xigu@marvell.com>
The PSCI area should be reserved in Linux for PSCI operations such as
suspend/resume.
Reserve 2MiB of memory which matches the area used by ATF (BL1, BL2,
BL3x, see [1] in ATF source code). This covers all PSCI code and data
area and is 2MiB aligned, which is required by Linux for huge pages
handling.
[1] plat/marvell/a3700/common/include/platform_def.h
Signed-off-by: Victor Gu <xigu@marvell.com>
[miquel.raynal@bootlin.com: reword of commit message]
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index 97207a61bc79..429ce91bfc39 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -22,6 +22,17 @@
serial1 = &uart1;
};
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ psci-area@4000000 {
+ reg = <0 0x4000000 0 0x200000>;
+ no-map;
+ };
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
--
2.14.1
WARNING: multiple messages have this Message-ID (diff)
From: miquel.raynal@bootlin.com (Miquel Raynal)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: dts: marvell: armada-37xx: reserve memory for ATF
Date: Sat, 21 Apr 2018 16:03:42 +0200 [thread overview]
Message-ID: <20180421140342.25082-1-miquel.raynal@bootlin.com> (raw)
From: Victor Gu <xigu@marvell.com>
The PSCI area should be reserved in Linux for PSCI operations such as
suspend/resume.
Reserve 2MiB of memory which matches the area used by ATF (BL1, BL2,
BL3x, see [1] in ATF source code). This covers all PSCI code and data
area and is 2MiB aligned, which is required by Linux for huge pages
handling.
[1] plat/marvell/a3700/common/include/platform_def.h
Signed-off-by: Victor Gu <xigu@marvell.com>
[miquel.raynal at bootlin.com: reword of commit message]
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index 97207a61bc79..429ce91bfc39 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -22,6 +22,17 @@
serial1 = &uart1;
};
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ psci-area at 4000000 {
+ reg = <0 0x4000000 0 0x200000>;
+ no-map;
+ };
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
--
2.14.1
next reply other threads:[~2018-04-21 14:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-21 14:03 Miquel Raynal [this message]
2018-04-21 14:03 ` [PATCH] arm64: dts: marvell: armada-37xx: reserve memory for ATF Miquel Raynal
2018-04-21 14:18 ` Thomas Petazzoni
2018-04-21 14:18 ` Thomas Petazzoni
2018-04-23 8:31 ` Miquel Raynal
2018-04-23 8:31 ` Miquel Raynal
2018-04-23 12:49 ` Thomas Petazzoni
2018-04-23 12:49 ` Thomas Petazzoni
2018-04-23 15:15 ` Miquel Raynal
2018-04-23 15:15 ` Miquel Raynal
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