drivers/genesyslogic/gl9755: Disable debug mode to enable circuit protections
In order for short circuit protection and over current protection to work, the
debug mode needs to be turned off.
BUG=b:185749961
TEST=build and test
Signed-off-by: Ben Chuang <benchuanggli@gmail.com>
Change-Id: Iacfa3c668a52d1bae15fe82f1c614d0ebd93a957
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51000
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
diff --git a/src/drivers/genesyslogic/gl9755/gl9755.c b/src/drivers/genesyslogic/gl9755/gl9755.c
index 6dfac47..a5778e3 100644
--- a/src/drivers/genesyslogic/gl9755/gl9755.c
+++ b/src/drivers/genesyslogic/gl9755/gl9755.c
@@ -28,6 +28,9 @@
reg |= CFG2_LAT_L1_64US;
pci_write_config32(dev, CFG2, reg);
+ /* Turn off debug mode to enable SCP/OCP */
+ pci_and_config32(dev, CFG3, ~SCP_DEBUG);
+
/* Set Vendor Config to be non-configurable */
pci_and_config32(dev, CFG, ~CFG_EN);
}
diff --git a/src/drivers/genesyslogic/gl9755/gl9755.h b/src/drivers/genesyslogic/gl9755/gl9755.h
index aa20a52..bc347fb 100644
--- a/src/drivers/genesyslogic/gl9755/gl9755.h
+++ b/src/drivers/genesyslogic/gl9755/gl9755.h
@@ -15,5 +15,7 @@
#define SNOOP_SCALE (0x3 << 10)
#define NO_SNOOP_VALUE (0x25 << 16)
#define NO_SNOOP_SCALE (0x3 << 26)
+#define CFG3 0x70
+#define SCP_DEBUG (0x1 << 19)
#endif /* DRIVERS_GENESYSLOGIC_GL9755_H */