Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
58 lines
1.2 KiB
Plaintext
58 lines
1.2 KiB
Plaintext
// SPDX-License-Identifier: BSD-3-Clause
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/*
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* x1 specific modifications required to boot in EL2.
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*/
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/dts-v1/;
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/plugin/;
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/* We can't and don't need to use zap shader in EL2 as linux can zap the gpu on it's own. */
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&gpu_zap_shader {
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status = "disabled";
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};
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&iris {
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/* TODO: Add video-firmware iommus to start IRIS from EL2 */
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status = "disabled";
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};
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/*
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* When running under Gunyah, this IOMMU is controlled by the firmware,
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* however when we take ownership of it in EL2, we need to configure
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* it properly to use PCIe.
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*
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* Additionally, it seems like ITS emulation in Gunyah is broken so we
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* can't use MSI on some PCIe controllers in EL1. But we can add them
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* here for EL2.
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*/
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&pcie3 {
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iommu-map = <0 &pcie_smmu 0x30000 0x10000>;
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msi-map = <0 &gic_its 0xb0000 0x10000>;
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};
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&pcie4 {
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iommu-map = <0 &pcie_smmu 0x40000 0x10000>;
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};
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&pcie5 {
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iommu-map = <0 &pcie_smmu 0x50000 0x10000>;
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msi-map = <0 &gic_its 0xd0000 0x10000>;
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};
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&pcie6a {
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iommu-map = <0 &pcie_smmu 0x60000 0x10000>;
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};
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&pcie_smmu {
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status = "okay";
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};
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/*
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* The "SBSA watchdog" is implemented in software in Gunyah
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* and can't be used when running in EL2.
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*/
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&sbsa_watchdog {
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status = "disabled";
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};
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