Add efuse bindings for Tegra20, Tegra30, Tegra114 and Tegra124. Signed-off-by: Peter De Schrijver <pdeschrijver@xxxxxxxxxx> --- .../devicetree/bindings/fuse/fuse-tegra.txt | 32 ++++++++++++++++++++ arch/arm/boot/dts/tegra114.dtsi | 7 ++++ arch/arm/boot/dts/tegra124.dtsi | 7 ++++ arch/arm/boot/dts/tegra20.dtsi | 7 ++++ arch/arm/boot/dts/tegra30.dtsi | 7 ++++ 5 files changed, 60 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/fuse/fuse-tegra.txt diff --git a/Documentation/devicetree/bindings/fuse/fuse-tegra.txt b/Documentation/devicetree/bindings/fuse/fuse-tegra.txt new file mode 100644 index 0000000..8a566a1 --- /dev/null +++ b/Documentation/devicetree/bindings/fuse/fuse-tegra.txt @@ -0,0 +1,32 @@ +NVIDIA Tegra20/Tegra30/Tegr114/Tegra124 fuse driver. + +Required properties: +- compatible : should be: + "nvidia,tegra20-efuse" + "nvidia,tegra30-efuse" + "nvidia,tegra114-efuse" + "nvidia,tegra124-efuse" + Details: + nvidia,tegra20-efuse: Tegra20 requires using APB DMA to read the fuse data + due to a hardware bug. Tegra20 also lacks certain information which is + available in later generations such as fab code, lot code, wafer id,.. + nvidia,tegra30-efuse, nvidia,tegra114-efuse and nvidia,tegra124-efuse: + The differences between these SoCs are the size of the efuse array, + the location of the spare (OEM programmable) bits and the location of + the speedo data. +- reg: Should contain 2 entries: the first entry gives the physical address + and length of the fuse registers, the second entry gives the physical + address and length of the apbmisc registers. These are used to provide + the chipid, chip revision and strapping options. +- clocks: Should contain a pointer to the fuse clock. + +Example: + + fuse@7000f800 { + compatible = "nvidia,tegra20-efuse"; + reg = <0x7000F800 0x400>, + <0x70000000 0x400>; + clocks = <&tegra_car TEGRA20_CLK_FUSE>; + }; + + diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi index 389e987..05ca90b 100644 --- a/arch/arm/boot/dts/tegra114.dtsi +++ b/arch/arm/boot/dts/tegra114.dtsi @@ -481,6 +481,13 @@ clock-names = "pclk", "clk32k_in"; }; + fuse@7000f800 { + compatible = "nvidia,tegra114-efuse"; + reg = <0x7000f800 0x400>, + <0x70000000 0x400>; + clocks = <&tegra_car TEGRA114_CLK_FUSE>; + }; + iommu@70019010 { compatible = "nvidia,tegra114-smmu", "nvidia,tegra30-smmu"; reg = <0x70019010 0x02c diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi index ec0698a..30faa73 100644 --- a/arch/arm/boot/dts/tegra124.dtsi +++ b/arch/arm/boot/dts/tegra124.dtsi @@ -381,6 +381,13 @@ clock-names = "pclk", "clk32k_in"; }; + fuse@7000f800 { + compatible = "nvidia,tegra124-efuse"; + reg = <0x7000f800 0x400>, + <0x70000000 0x400>; + clocks = <&tegra_car TEGRA124_CLK_FUSE>; + }; + sdhci@700b0000 { compatible = "nvidia,tegra124-sdhci"; reg = <0x700b0000 0x200>; diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index 480ecda..a1a15d7 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -541,6 +541,13 @@ #size-cells = <0>; }; + fuse@7000f800 { + compatible = "nvidia,tegra20-efuse"; + reg = <0x7000F800 0x400>, + <0x70000000 0x400>; + clocks = <&tegra_car TEGRA20_CLK_FUSE>; + }; + pcie-controller@80003000 { compatible = "nvidia,tegra20-pcie"; device_type = "pci"; diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi index ed8e770..1ec80fa 100644 --- a/arch/arm/boot/dts/tegra30.dtsi +++ b/arch/arm/boot/dts/tegra30.dtsi @@ -623,6 +623,13 @@ nvidia,ahb = <&ahb>; }; + fuse@7000f800 { + compatible = "nvidia,tegra30-efuse"; + reg = <0x7000f800 0x400>, + <0x70000000 0x400>; + clocks = <&tegra_car TEGRA30_CLK_FUSE>; + }; + ahub@70080000 { compatible = "nvidia,tegra30-ahub"; reg = <0x70080000 0x200 -- 1.7.7.rc0.72.g4b5ea.dirty -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html