Change in coreboot[master]: soc/amd/cezanne: Add pre-FSPM call to the mainboard

[Martin Roth (Code Review)]

Martin Roth has submitted this change. ( https://review.coreboot.org/c/coreboot/+/54638 )

Change subject: soc/amd/cezanne: Add pre-FSPM call to the mainboard
......................................................................

soc/amd/cezanne: Add pre-FSPM call to the mainboard

The Guybrush platform needs to set up some GPIOs immediately before the
FSP-M runs.  Add a platform specific call.  This will be used in a
follow-on commit.

BUG=b:184796302, b:184598323
TEST=Build

Signed-off-by: Martin Roth 
Change-Id: I37d2625ff426347852e98a9a50f15368e0213449
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54638
Reviewed-by: Felix Held 
Reviewed-by: Marshall Dawson 
Tested-by: build bot (Jenkins) 
---
M src/soc/amd/cezanne/fsp_m_params.c
M src/soc/amd/cezanne/include/soc/platform_descriptors.h
2 files changed, 7 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Felix Held: Looks good to me, approved
  Marshall Dawson: Looks good to me, approved

diff --git a/src/soc/amd/cezanne/fsp_m_params.c b/src/soc/amd/cezanne/fsp_m_params.c
index 352aeef..9546721 100644
--- a/src/soc/amd/cezanne/fsp_m_params.c
+++ b/src/soc/amd/cezanne/fsp_m_params.c
@@ -36,6 +36,10 @@
    return gfx_hda_dev->enabled;
 }

+__weak void mb_pre_fspm(void)
+{
+}
+
 static void fill_dxio_descriptors(FSP_M_CONFIG *mcfg,
    		const fsp_dxio_descriptor *descs, size_t num)
 {
@@ -171,4 +175,5 @@

fsp_fill_pcie_ddi_descriptors(mcfg);
    fsp_assign_ioapic_upds(mcfg);
+	mb_pre_fspm();
 }
diff --git a/src/soc/amd/cezanne/include/soc/platform_descriptors.h b/src/soc/amd/cezanne/include/soc/platform_descriptors.h
index d68cd7f..3a4bc62 100644
--- a/src/soc/amd/cezanne/include/soc/platform_descriptors.h
+++ b/src/soc/amd/cezanne/include/soc/platform_descriptors.h
@@ -12,4 +12,6 @@
    	const fsp_dxio_descriptor **dxio_descs, size_t *dxio_num,
    	const fsp_ddi_descriptor **ddi_descs, size_t *ddi_num);

+void mb_pre_fspm(void);
+
 #endif /* AMD_PICASSO_PLATFORM_DESCRIPTORS_H */