Convert Renesas VMSA-Compatible IOMMU bindings documentation
to json-schema.
Note that original documentation doesn't mention renesas,ipmmu-vmsa
for R-Mobile APE6. But, R-Mobile APE6 is similar to the R-Car
Gen2. So, renesas,ipmmu-r8a73a4 belongs the renesas,ipmmu-vmsa
section.
Signed-off-by: Yoshihiro Shimoda
---
Changes from v4:
- Fix description about cell counts on #iommu-cells and renesas,ipmmu-main.
- Fix node name on the example.
https://patchwork.kernel.org/patch/11494231/
Changes from v3:
- Fix renesas,ipmmu-r8a7795's section
https://patchwork.kernel.org/patch/11494079/
Changes from v2:
- Add a description for R-Mobile APE6 on the commit log.
- Change renesas,ipmmu-r8a73a4 section on the compatible.
- Add items on the interrupts.
- Add power-domains to required.
- Add oneOf for interrupts and renesas,ipmmu-main
https://patchwork.kernel.org/patch/11490581/
Changes from v1:
- Fix typo in the subject.
- Add a description on #iommu-cells.
https://patchwork.kernel.org/patch/11485415/
.../bindings/iommu/renesas,ipmmu-vmsa.txt | 73
.../bindings/iommu/renesas,ipmmu-vmsa.yaml | 98 ++
2 files changed, 98 insertions(+), 73 deletions(-)
delete mode 100644
Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt
create mode 100644
Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.yaml
diff --git a/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt
b/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt
deleted file mode 100644
index 020d6f2..
--- a/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt
+++ /dev/null
@@ -1,73 +0,0 @@
-* Renesas VMSA-Compatible IOMMU
-
-The IPMMU is an IOMMU implementation compatible with the ARM VMSA page tables.
-It provides address translation for bus masters outside of the CPU, each
-connected to the IPMMU through a port called micro-TLB.
-
-
-Required Properties:
-
- - compatible: Must contain SoC-specific and generic entry below in case
-the device is compatible with the R-Car Gen2 VMSA-compatible IPMMU.
-
-- "renesas,ipmmu-r8a73a4" for the R8A73A4 (R-Mobile APE6) IPMMU.
-- "renesas,ipmmu-r8a7743" for the R8A7743 (RZ/G1M) IPMMU.
-- "renesas,ipmmu-r8a7744" for the R8A7744 (RZ/G1N) IPMMU.
-- "renesas,ipmmu-r8a7745" for the R8A7745 (RZ/G1E) IPMMU.
-- "renesas,ipmmu-r8a774a1" for the R8A774A1 (RZ/G2M) IPMMU.
-- "renesas,ipmmu-r8a774b1" for the R8A774B1 (RZ/G2N) IPMMU.
-- "renesas,ipmmu-r8a774c0" for the R8A774C0 (RZ/G2E) IPMMU.
-- "renesas,ipmmu-r8a7790" for the R8A7790 (R-Car H2) IPMMU.
-- "renesas,ipmmu-r8a7791" for the R8A7791 (R-Car M2-W) IPMMU.
-- "renesas,ipmmu-r8a7793" for the R8A7793 (R-Car M2-N) IPMMU.
-- "renesas,ipmmu-r8a7794" for the R8A7794 (R-Car E2) IPMMU.
-- "renesas,ipmmu-r8a7795" for the R8A7795 (R-Car H3) IPMMU.
-- "renesas,ipmmu-r8a7796" for the R8A7796 (R-Car M3-W) IPMMU.
-- "renesas,ipmmu-r8a77965" for the R8A77965 (R-Car M3-N) IPMMU.
-- "renesas,ipmmu-r8a77970" for the R8A77970 (R-Car V3M) IPMMU.
-- "renesas,ipmmu-r8a77980" for the R8A77980 (R-Car V3H) IPMMU.
-- "renesas,ipmmu-r8a77990" for the R8A77990 (R-Car E3) IPMMU.
-- "renesas,ipmmu-r8a77995" for the R8A77995 (R-Car D3) IPMMU.
-- "renesas,ipmmu-vmsa" for generic R-Car Gen2 or RZ/G1 VMSA-compatible
- IPMMU.
-
- - reg: Base address and size of the IPMMU registers.
- - interrupts: Specifiers for the MMU fault interrupts. For instances that
-support secure mode two interrupts must be specified, for non-secure and
-secure mode, in that order. For instances that don't support secure mode a
-single interrupt must be specified. Not required for cache IPMMUs.
-
- - #iommu-cells: Must be 1.
-
-Optional properties:
-
- - renesas,ipmmu-main: reference to the main IPMMU instance in two cells.
-The first cell is a phandle to the main IPMMU and the second cell is
-the interrupt bit number associated with the particular cache IPMMU device.
-The interrupt bit number needs to match the main IPMMU IMSSTR register.
-Only used by cache IPMMU instances.
-
-
-Each bus master connected to an IPMMU must reference the IPMMU in its device
-node with the following property:
-
- - iommus: A reference to the IPMMU in two cells. The first cell is a phandle
-to the IPMMU and the second cell the number of the micro-TLB that the
-device is connected to.
-
-
-Example: R8A7791 IPMMU-MX and VSP1-D0 bus master
-
- ipmmu_mx: mmu@fe951000 {
- compatible = "renasas,ipmmu-r8a7791", "renasas,ipmmu-vmsa";
- reg = <0 0xfe951000 0 0x1000>;
- interrupts = <0 222 IRQ_TYPE_LEVEL_HIGH>,
-<0 221 IRQ_TYPE_LEVEL_HIGH>;
- #iommu-cells = <1>;
- };
-
- vsp@fe928000 {
- ...
- iommus = <_mx 13>;
- ...
- };
diff --git
