38 lines
1.4 KiB
Plaintext
38 lines
1.4 KiB
Plaintext
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Tegra Fuse burn
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Fuse burn driver to burn chip fuses when device is unlocked.
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Required properties :
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- compatible : Each chip has different spare reg offset and length.
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Must be one of these:
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- For Tegra186, "nvidia,tegra186-efuse-burn",
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- FOr Tegra194, "nvidia,tegra194-efuse-burn",
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- FOr Tegra210, "nvidia,tegra210-efuse-burn",
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- FOr Tegra210B01, "nvidia,tegra210b01-efuse-burn".
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- clocks : Handle for "clk_m" clock.
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- clock-names : is "clk_m".
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Optional properties :
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- nvidia,tz : Handle for thermal zone to get temperature values
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- nvidia,temp-range : min and max temp range where fuse burn is allowed
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- nvidia,redundant-aid-war : Some legacy kernel assume the AID fuse as
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redundant and read the fuse value in redundant way, from address X and
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address X+2, which should be address X and address X+1 instead. To align
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the platform we release with legacy kernel and client, add the
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"redundant-aid-war" for reading the same value as in the past. No longer
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needed in 4.14 and future kernels.
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- thermal-zone : Adds shutdown limit check before burining fuse. should
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be either 5 for PLLX or 6 for AO.
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Example:
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efuse@3820000 {
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compatible = "nvidia,tegra186-efuse";
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efuse-burn {
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compatible = "nvidia,tegra186-efuse-burn";
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clocks = <&tegra_car TEGRA186_CLK_CLK_M>;
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clock-names = "clk_m";
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nvidia,tz = <&aotag>;
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nvidia,temp-range = <4000 101000>;
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};
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};
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