From 60243501f23cdc512f6e4c1a4277b6e0c355aa48 Mon Sep 17 00:00:00 2001 From: Ben Chuang Date: Fri, 5 Feb 2021 17:33:38 +0800 Subject: [PATCH] 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 Change-Id: Iacfa3c668a52d1bae15fe82f1c614d0ebd93a957 Reviewed-on: https://review.coreboot.org/c/coreboot/+/51000 Tested-by: build bot (Jenkins) Reviewed-by: Tim Wawrzynczak Reviewed-by: Nick Vaccaro --- src/drivers/genesyslogic/gl9755/gl9755.c | 3 +++ src/drivers/genesyslogic/gl9755/gl9755.h | 2 ++ 2 files changed, 5 insertions(+) diff --git a/src/drivers/genesyslogic/gl9755/gl9755.c b/src/drivers/genesyslogic/gl9755/gl9755.c index 6dfac47293..a5778e3924 100644 --- a/src/drivers/genesyslogic/gl9755/gl9755.c +++ b/src/drivers/genesyslogic/gl9755/gl9755.c @@ -28,6 +28,9 @@ static void gl9755_enable(struct device *dev) 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 aa20a527f2..bc347fb16b 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 */