iMX8 with Infineon SLB9670 TPM module

Technical Support
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5

Hi @hfranco.tx,

I tried using overlay from your link:

 tpm_tis@0 {
            compatible = "infineon,slb9670";
            spi-max-frequency = <10000000>;
 };

But without reg property I’m getting error in dmesg:

spi_master spi0: /bus@5a000000/spi@5a000000/tpm_tis@0 has no valid 'reg' property (-22)
spi_master spi0: Failed to create SPI device for /bus@5a000000/spi@5a000000/tpm_tis@0

So I put back “reg = <0>;” inside tpm_tis node. I’ve also tried different spi-max-frequency values (20 MHz, 1MHz, 500 kHz) but still no output from tpm_tis_spi module.

Regards,
Mateusz