This patch add smi binding document.
Signed-off-by: Yong Wu <yong.wu@xxxxxxxxxxxx>
---
.../memory-controllers/mediatek,smi-larb.txt | 25 ++++++++++++++++++++++
.../bindings/memory-controllers/mediatek,smi.txt | 24 +++++++++++++++++++++
2 files changed, 49 insertions(+)
create mode 100644 Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
create mode 100644 Documentation/devicetree/bindings/memory-controllers/mediatek,smi.txt
diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
new file mode 100644
index 0000000..55ff3b7
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
@@ -0,0 +1,25 @@
+SMI (Smart Multimedia Interface) Local Arbiter
+
+The hardware block diagram please check bindings/iommu/mediatek,iommu.txt
+
+Required properties:
+- compatible : must be "mediatek,mt8173-smi-larb"
+- reg : the register and size of this local arbiter.
+- mediatek,smi : a phandle to the smi_common node.
+- power-domains : a phandle to the power domain of this local arbiter.
+- clocks : Must contain an entry for each entry in clock-names.
+- clock-names: must contain 2 entries, as follows:
+ - "apb" : Advanced Peripheral Bus clock, It's the clock for setting
+ the register.
+ - "smi" : It's the clock for transfer data and command.
+
+Example:
+ larb1: larb@16010000 {
+ compatible = "mediatek,mt8173-smi-larb";
+ reg = <0 0x16010000 0 0x1000>;
+ mediatek,smi = <&smi_common>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_VDEC>;
+ clocks = <&vdecsys CLK_VDEC_CKEN>,
+ <&vdecsys CLK_VDEC_LARB_CKEN>;
+ clock-names = "apb", "smi";
+ };
diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi.txt b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi.txt
new file mode 100644
index 0000000..f54e91c
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi.txt
@@ -0,0 +1,24 @@
+SMI (Smart Multimedia Interface)
+
+The hardware block diagram please check bindings/iommu/mediatek,iommu.txt
+
+Required properties:
+- compatible : must be "mediatek,mt8173-smi"
+- reg : the register and size of the SMI block.
+- power-domains : a phandle to the power domain of this local arbiter.
+- clocks : Must contain an entry for each entry in clock-names.
+- clock-names : must contain 2 entries, as follows:
+ - "apb" : Advanced Peripheral Bus clock, It's the clock for setting
+ the register.
+ - "smi" : It's the clock for transfer data and command.
+ They may be the same if both source clock are the same.
+
+Example:
+ smi_common: smi@14022000 {
+ compatible = "mediatek,mt8173-smi";
+ reg = <0 0x14022000 0 0x1000>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
+ clocks = <&mmsys CLK_MM_SMI_COMMON>,
+ <&mmsys CLK_MM_SMI_COMMON>;
+ clock-names = "apb", "smi";
+ };
--
1.8.1.1.dirty
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