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This solves a compatibility issue with Linux device trees that contain TPMv2.x hardware. So it's easier to import DTS from upstream kernel when migrating board init from C code to DTS. The issue is that fallback binding is different between Linux and u-Boot. Linux: "tcg,tpm_tis-spi" U-Boot: "tis,tpm2-spi" As there are currently no in-tree users of the U-Boot binding, it makes sense to use Linux fallback binding. Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com>
19 lines
389 B
Plaintext
19 lines
389 B
Plaintext
ST33TPHF20 SPI TPMv2.0 bindings
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-------------------------------
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Required properties:
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- compatible : Should be "tcg,tpm_tis-spi"
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- reg : SPI Chip select
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Optional properties:
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- gpio-reset : Reset GPIO (if not connected to the SoC reset line)
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- spi-max-frequency : See spi-bus.txt
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Example:
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tpm@1 {
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compatible = "tcg,tpm_tis-spi";
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reg = <1>;
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spi-max-frequency = <10000000>;
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};
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