Re: [PATCH] arm64: dts: imx8qm: add smmu node
From: Robin Murphy <robin.murphy@arm.com>
Date: 2021-08-09 11:44:44
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linux-devicetree, lkml
On 2021-08-07 11:45, Peng Fan (OSS) wrote:
From: Peng Fan <peng.fan@nxp.com> i.MX8QM has an iommu unit: SMMU-V2(mmu-500), add it.
Given CONFIG_ARM_SMMU_DISABLE_BYPASS_BY_DEFAULT, you may want to add this in a disabled state until you've filled in all the "iommus" properties for the client devices. Otherwise, be prepared to hear from people reporting issues bisected to this patch ;) Robin.
quoted hunk ↗ jump to hunk
Signed-off-by: Peng Fan <peng.fan@nxp.com> --- arch/arm64/boot/dts/freescale/imx8qm.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)diff --git a/arch/arm64/boot/dts/freescale/imx8qm.dtsi b/arch/arm64/boot/dts/freescale/imx8qm.dtsi index aebbe2b84aa1..b8ffd5be6a3e 100644 --- a/arch/arm64/boot/dts/freescale/imx8qm.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8qm.dtsi@@ -165,6 +165,22 @@ iomuxc: pinctrl { }; + smmu: iommu@51400000 { + compatible = "arm,mmu-500"; + reg = <0 0x51400000 0 0x40000>; + #iommu-cells = <2>; + #global-interrupts = <1>; + interrupts = <0 32 4>, <0 32 4>, <0 32 4>, <0 32 4>, + <0 32 4>, <0 32 4>, <0 32 4>, <0 32 4>, + <0 32 4>, <0 32 4>, <0 32 4>, <0 32 4>, + <0 32 4>, <0 32 4>, <0 32 4>, <0 32 4>, + <0 32 4>, <0 32 4>, <0 32 4>, <0 32 4>, + <0 32 4>, <0 32 4>, <0 32 4>, <0 32 4>, + <0 32 4>, <0 32 4>, <0 32 4>, <0 32 4>, + <0 32 4>, <0 32 4>, <0 32 4>, <0 32 4>, + <0 32 4>; + }; + /* sorted in register address */ #include "imx8-ss-img.dtsi" #include "imx8-ss-dma.dtsi"
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