The MBOX_BIOS_CMD_DRAM_INFO PSP mailbox command is only available on the
first generation of PSP mailbox interface and not on the second
generation. The second generation of the PSP mailbox interface was
introduced with the AMD family 17h SoCs on which the DRAM is already
initialized before the x86 cores are released from reset.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I97b29fdc4a71d6493ec63fa60f580778f026ec0b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60124
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
fc373c7dac