soc/amd: introduce common SMU S3/4/5 entry message code

The smu_sx_entry function is identical for all AMD SoCs, so introduce it
as common code that can be selected to be included in the build via the
SOC_AMD_COMMON_BLOCK_SMU_SX_ENTRY Kconfig option. The only SoC-specific
difference in this function is the ID of the SMC_MSG_S3ENTRY message
which is defined in each SoC's soc/smu.h include file.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Suggested-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: I49758e9333a351d8e50e8f1b53a7f00fbe89866c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71875
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>

0 files changed, 0 insertions, 0 deletions