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-rw-r--r--src/drivers/genesyslogic/gl9763e/Kconfig8
-rw-r--r--src/drivers/genesyslogic/gl9763e/gl9763e.c5
-rw-r--r--src/drivers/genesyslogic/gl9763e/gl9763e.h1
3 files changed, 13 insertions, 1 deletions
diff --git a/src/drivers/genesyslogic/gl9763e/Kconfig b/src/drivers/genesyslogic/gl9763e/Kconfig
index c254707f66..555ad91d0e 100644
--- a/src/drivers/genesyslogic/gl9763e/Kconfig
+++ b/src/drivers/genesyslogic/gl9763e/Kconfig
@@ -1,2 +1,8 @@
config DRIVERS_GENESYSLOGIC_GL9763E
- bool
+ bool "Genesys Logic GL9763E"
+ default n
+
+config DRIVERS_GENESYSLOGIC_GL9763E_L1_MAX
+ bool "Set L1 entry delay to MAX"
+ depends on DRIVERS_GENESYSLOGIC_GL9763E
+ default n
diff --git a/src/drivers/genesyslogic/gl9763e/gl9763e.c b/src/drivers/genesyslogic/gl9763e/gl9763e.c
index 4dcfbdcbd0..a4842e81c3 100644
--- a/src/drivers/genesyslogic/gl9763e/gl9763e.c
+++ b/src/drivers/genesyslogic/gl9763e/gl9763e.c
@@ -23,6 +23,11 @@ static void gl9763e_init(struct device *dev)
pci_or_config32(dev, SCR, SCR_AXI_REQ);
/* Disable L0s support */
pci_and_config32(dev, CFG_REG_2, ~CFG_REG_2_L0S);
+
+ if (CONFIG(DRIVERS_GENESYSLOGIC_GL9763E_L1_MAX))
+ /* Set L1 entry delay to MAX */
+ pci_or_config32(dev, CFG_REG_2, CFG_REG_2_L1DLY_MAX);
+
/* Set SSC to 30000 ppm */
pci_update_config32(dev, PLL_CTL_2, ~PLL_CTL_2_MAX_SSC_MASK, MAX_SSC_30000PPM);
/* Enable SSC */
diff --git a/src/drivers/genesyslogic/gl9763e/gl9763e.h b/src/drivers/genesyslogic/gl9763e/gl9763e.h
index 7f5dbf9c05..647920ca95 100644
--- a/src/drivers/genesyslogic/gl9763e/gl9763e.h
+++ b/src/drivers/genesyslogic/gl9763e/gl9763e.h
@@ -14,6 +14,7 @@
#define CFG_REG_2 0x8A4
#define CFG_REG_2_L0S BIT(11)
+#define CFG_REG_2_L1DLY_MAX (0x3FF << 19)
#define PLL_CTL 0x938
#define PLL_CTL_SSC BIT(19)