Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1271119 > unrolled thread

[PATCH 1/3] docs: iommu: Documentation for iommu in hi6220 SoC

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  [PATCH 1/3] docs: iommu: Documentation for iommu in hi6220 SoC Chen Feng <puck.chen@hisilicon.com> - 2015-11-17 13:00 +0100
    Re: [PATCH 1/3] docs: iommu: Documentation for iommu in hi6220 SoC Rob Herring <robh+dt@kernel.org> - 2015-11-17 18:40 +0100

#1271119 — [PATCH 1/3] docs: iommu: Documentation for iommu in hi6220 SoC

Documentation for hi6220 iommu driver.

Signed-off-by: Chen Feng <puck.chen@hisilicon.com>
---
 .../bindings/iommu/hisi,hi6220-iommu.txt           | 32 ++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iommu/hisi,hi6220-iommu.txt

diff --git a/Documentation/devicetree/bindings/iommu/hisi,hi6220-iommu.txt b/Documentation/devicetree/bindings/iommu/hisi,hi6220-iommu.txt
new file mode 100644
index 0000000..44f9101
--- /dev/null
+++ b/Documentation/devicetree/bindings/iommu/hisi,hi6220-iommu.txt
@@ -0,0 +1,32 @@
+Hi6220 SoC SMMU Device Driver devicetree document
+The media system shared the same smmu IP to access DDR memory. And all
+media IP used the same page table.
+
+Below binding describes the system mmu for media system in hi6220 platform
+
+Required properties:
+- compatible: should contain "hisilicon,hi6220-smmu".
+- reg: A tuple of base address and size of System MMU registers.
+- clocks: a list of phandle + clock-specifier pairs, one for each entry
+  in clock-names.
+- clock-names: should contain:
+  * "smmu"
+  * "media-sc"
+  * "smmu-peri"
+- interrupts: An interrupt specifier for interrupt signal of System MMU.
+- #iommu-cells: The iommu-cells should be 0. Because no additional information
+  needs to be encoded in the specifier.
+
+Examples:
+	iommu@f4210000 {
+		compatible = "hisilicon,hi6220-smmu";
+		reg = <0x0 0xf4210000 0x0 0x1000>;
+		interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&sys_ctrl HI6220_MMU_CLK>,
+		         <&media_ctrl HI6220_MED_MMU>,
+		         <&sys_ctrl HI6220_MEDIA_PLL_SRC>;
+		clock-names = "smmu",
+			      "media-sc",
+			      "smmu-peri";
+		#iommu-cells = <0>;
+	};
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[toc] | [next] | [standalone]

#1271480

On Tue, Nov 17, 2015 at 5:57 AM, Chen Feng <puck.chen@hisilicon.com> wrote:
> Documentation for hi6220 iommu driver.

Please use get_maintainers.pl and re-send to correct lists
(devicetree@vger.kernel.org).

>
> Signed-off-by: Chen Feng <puck.chen@hisilicon.com>
> ---
>  .../bindings/iommu/hisi,hi6220-iommu.txt           | 32 ++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iommu/hisi,hi6220-iommu.txt
>
> diff --git a/Documentation/devicetree/bindings/iommu/hisi,hi6220-iommu.txt b/Documentation/devicetree/bindings/iommu/hisi,hi6220-iommu.txt
> new file mode 100644
> index 0000000..44f9101
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iommu/hisi,hi6220-iommu.txt
> @@ -0,0 +1,32 @@
> +Hi6220 SoC SMMU Device Driver devicetree document
> +The media system shared the same smmu IP to access DDR memory. And all
> +media IP used the same page table.
> +
> +Below binding describes the system mmu for media system in hi6220 platform
> +
> +Required properties:
> +- compatible: should contain "hisilicon,hi6220-smmu".
> +- reg: A tuple of base address and size of System MMU registers.
> +- clocks: a list of phandle + clock-specifier pairs, one for each entry
> +  in clock-names.
> +- clock-names: should contain:
> +  * "smmu"
> +  * "media-sc"
> +  * "smmu-peri"
> +- interrupts: An interrupt specifier for interrupt signal of System MMU.
> +- #iommu-cells: The iommu-cells should be 0. Because no additional information
> +  needs to be encoded in the specifier.
> +
> +Examples:
> +       iommu@f4210000 {
> +               compatible = "hisilicon,hi6220-smmu";
> +               reg = <0x0 0xf4210000 0x0 0x1000>;
> +               interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>;
> +               clocks = <&sys_ctrl HI6220_MMU_CLK>,
> +                        <&media_ctrl HI6220_MED_MMU>,
> +                        <&sys_ctrl HI6220_MEDIA_PLL_SRC>;
> +               clock-names = "smmu",
> +                             "media-sc",
> +                             "smmu-peri";
> +               #iommu-cells = <0>;
> +       };
> --
> 1.9.1
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[toc] | [prev] | [standalone]

Back to top | Article view | linux.kernel

csiph-web