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authorZheng Bao <fishbaozi@gmail.com>2022-01-21 11:03:16 +0800
committerFelix Held <felix-coreboot@felixheld.de>2022-01-26 04:16:34 +0000
commita3525af1d2887c67d659a2c0fcf47e30a853f49f (patch)
tree9446215129184f4e1bab972e42e9e51f4f76df5f /src/mainboard/google/guybrush/variants/dewatt/variant.c
parentd4b5ad0ce395c44432151bf1eb20adb78d4662a7 (diff)
mb/google/guybrush/dewatt: Add variant to disable HDMI
For one specific type of APU, it doesn't have HDMI. When we detect this APU, we need to explicitly disable HDMI in DDI settings, otherwise the system would freeze. get_cpu_count() == 4 && get_threads_per_core() == 2: This case is for 2 Core and 4 Thread CPU (2C/4T for short). get_cpu_count() == 2: This is for 2C/2T. This is for a possible future case. BUG=b:208677293 Change-Id: I8d0fa96818a768b7960d92821b927dbc622675ae Signed-off-by: Zheng Bao <fishbaozi@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/61260 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Chris Wang <chris.wang@amd.corp-partner.google.com>
Diffstat (limited to 'src/mainboard/google/guybrush/variants/dewatt/variant.c')
-rw-r--r--src/mainboard/google/guybrush/variants/dewatt/variant.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/mainboard/google/guybrush/variants/dewatt/variant.c b/src/mainboard/google/guybrush/variants/dewatt/variant.c
new file mode 100644
index 0000000000..a985b05947
--- /dev/null
+++ b/src/mainboard/google/guybrush/variants/dewatt/variant.c
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <baseboard/variants.h>
+#include <amdblocks/cpu.h>
+
+void variant_update_ddi_descriptors(fsp_ddi_descriptor *ddi_descriptors)
+{
+ if ((get_cpu_count() == 4 && get_threads_per_core() == 2) || get_cpu_count() == 2)
+ ddi_descriptors[1].connector_type = DDI_UNUSED_TYPE;
+}