iommu/exynos: Add support for v5 SYSMMU

This patch adds support for v5 of SYSMMU controller, found in Samsung
Exynos 5433 SoCs. The main difference of v5 is support for 36-bit physical
address space and some changes in register layout and core clocks hanging.
This patch also adds support for ARM64 architecture, which is used by
Exynos 5433 SoCs.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

1 files changed, 3 insertions, 2 deletions

diff --git a/Documentation/devicetree/bindings/iommu/samsung,sysmmu.txt b/Documentation/devicetree/bindings/iommu/samsung,sysmmu.txt
index f61ca25ca136..85f068805dd8 100644
--- a/Documentation/devicetree/bindings/iommu/samsung,sysmmu.txt
+++ b/Documentation/devicetree/bindings/iommu/samsung,sysmmu.txt
@@ -35,9 +35,10 @@ Required properties:
 - interrupts: An interrupt specifier for interrupt signal of System MMU,
 	      according to the format defined by a particular interrupt
 	      controller.
-- clock-names: Should be "sysmmu" if the System MMU is needed to gate its clock.
+- clock-names: Should be "sysmmu" or a pair of "aclk" and "pclk" to gate
+	       SYSMMU core clocks.
 	       Optional "master" if the clock to the System MMU is gated by
-	       another gate clock other than "sysmmu" (usually main gate clock
+	       another gate clock other core  (usually main gate clock
 	       of peripheral device this SYSMMU belongs to).
 - clocks: Phandles for respective clocks described by clock-names.
 - power-domains: Required if the System MMU is needed to gate its power.