43 lines
770 B
Plaintext
43 lines
770 B
Plaintext
// SPDX-License-Identifier: BSD-3-Clause
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/*
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* sc8280xp 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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/*
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* When running under QHEE, 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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&pcie2a {
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iommu-map = <0 &pcie_smmu 0x20000 0x10000>;
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};
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&pcie2b {
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iommu-map = <0 &pcie_smmu 0x30000 0x10000>;
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};
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&pcie3a {
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iommu-map = <0 &pcie_smmu 0x40000 0x10000>;
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};
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&pcie3b {
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iommu-map = <0 &pcie_smmu 0x50000 0x10000>;
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};
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&pcie4 {
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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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