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H A D | armada-37xx.dtsi | 4436a371 Tue Jun 26 03:17:01 CDT 2018 Victor Gu <xigu@marvell.com> arm64: dts: marvell: armada-37xx: reserve memory for ATF
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.
Please note that this is a default setup allowing to perform PSCI operations with legacy bootloaders. Recent bootloaders should update the region size/position accordingly.
[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, comment in the DTSI] Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> 4436a371 Tue Jun 26 03:17:01 CDT 2018 Victor Gu <xigu@marvell.com> arm64: dts: marvell: armada-37xx: reserve memory for ATF 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. Please note that this is a default setup allowing to perform PSCI operations with legacy bootloaders. Recent bootloaders should update the region size/position accordingly. [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, comment in the DTSI] Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
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