On 03/19/2018 12:36 PM, Paul Menzel wrote:
On 03/19/18 17:23, Stephen Douthit wrote:
On 03/19/2018 12:00 PM, Stefan Berger wrote:
Wait for the tpmRegValidSts flag on the TPM_LOC_STATE_x register to be set; we espect the locAssigned flag to not be set.
s/espect/expect/ and in the subject line s/CRQ/CRB
Just retested the v2 series on my board so: Tested-by: Stephen Douthit email@example.com
Do you have a setup, where you can measure the times? What times do you see?
Even in the timeout case it's shorter than the timer interrupt tick interval on my board. 'ticks' reads 0 for both the present and absent case on my board.
diff --git a/src/tcgbios.c b/src/tcgbios.c index 40b3028..056c412 100644 --- a/src/tcgbios.c +++ b/src/tcgbios.c @@ -968,7 +968,10 @@ tpm_setup(void) if (!CONFIG_TCGBIOS) return;
+ u32 start = irqtimer_calc(0); TPM_version = tpmhw_probe(); + u32 ticks = irqtimer_calc(0) - start; + dprintf(1, "TCGBIOS: tpmhw_probe completed in %d ticks (%d ms)\n", ticks, ticks_to_ms(ticks)); if (TPM_version == TPM_VERSION_NONE) return;