mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-06 13:14:27 +00:00
78cc3fcf08
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>
18 lines
389 B
Text
18 lines
389 B
Text
ST33TPHF20 SPI TPMv2.0 bindings
|
|
-------------------------------
|
|
|
|
Required properties:
|
|
- compatible : Should be "tcg,tpm_tis-spi"
|
|
- reg : SPI Chip select
|
|
|
|
Optional properties:
|
|
- gpio-reset : Reset GPIO (if not connected to the SoC reset line)
|
|
- spi-max-frequency : See spi-bus.txt
|
|
|
|
Example:
|
|
|
|
tpm@1 {
|
|
compatible = "tcg,tpm_tis-spi";
|
|
reg = <1>;
|
|
spi-max-frequency = <10000000>;
|
|
};
|