33 строки
1.2 KiB
Plaintext
33 строки
1.2 KiB
Plaintext
OMAP2+ IOMMU
|
|
|
|
Required properties:
|
|
- compatible : Should be one of,
|
|
"ti,omap2-iommu" for OMAP2/OMAP3 IOMMU instances
|
|
"ti,omap4-iommu" for OMAP4/OMAP5 IOMMU instances
|
|
"ti,dra7-iommu" for DRA7xx IOMMU instances
|
|
- ti,hwmods : Name of the hwmod associated with the IOMMU instance
|
|
- reg : Address space for the configuration registers
|
|
- interrupts : Interrupt specifier for the IOMMU instance
|
|
- #iommu-cells : Should be 0. OMAP IOMMUs are all "single-master" devices,
|
|
and needs no additional data in the pargs specifier. Please
|
|
also refer to the generic bindings document for more info
|
|
on this property,
|
|
Documentation/devicetree/bindings/iommu/iommu.txt
|
|
|
|
Optional properties:
|
|
- ti,#tlb-entries : Number of entries in the translation look-aside buffer.
|
|
Should be either 8 or 32 (default: 32)
|
|
- ti,iommu-bus-err-back : Indicates the IOMMU instance supports throwing
|
|
back a bus error response on MMU faults.
|
|
|
|
Example:
|
|
/* OMAP3 ISP MMU */
|
|
mmu_isp: mmu@480bd400 {
|
|
#iommu-cells = <0>;
|
|
compatible = "ti,omap2-iommu";
|
|
reg = <0x480bd400 0x80>;
|
|
interrupts = <24>;
|
|
ti,hwmods = "mmu_isp";
|
|
ti,#tlb-entries = <8>;
|
|
};
|