From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- .../bindings/iommu/renesas,ipmmu-vmsa.txt | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 kernel/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt (limited to 'kernel/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt') diff --git a/kernel/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt b/kernel/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt new file mode 100644 index 000000000..cd29083e1 --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt @@ -0,0 +1,41 @@ +* 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 "renesas,ipmmu-vmsa". + - 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. + + - #iommu-cells: Must be 1. + +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-vmsa"; + reg = <0 0xfe951000 0 0x1000>; + interrupts = <0 222 IRQ_TYPE_LEVEL_HIGH>, + <0 221 IRQ_TYPE_LEVEL_HIGH>; + #iommu-cells = <1>; + }; + + vsp1@fe928000 { + ... + iommus = <&ipmmu_mx 13>; + ... + }; -- cgit 1.2.3-korg