3 files changed, 16 insertions, 0 deletions
diff --git a/src/southbridge/nvidia/ck804/Kconfig b/src/southbridge/nvidia/ck804/Kconfig
index 83c427c3df..4126355c5e 100644
--- a/src/southbridge/nvidia/ck804/Kconfig
+++ b/src/southbridge/nvidia/ck804/Kconfig
@@ -30,6 +30,10 @@ config CK804B_PCI_E_X
 	int
 	default 4
 
+config CK804_PCIE_PME_WAKE
+	bool "Enable system wake on PCIe PME# signal"
+	default n
+
 config CK804_NUM
 	int
 	default 1
diff --git a/src/southbridge/nvidia/ck804/early_setup.c b/src/southbridge/nvidia/ck804/early_setup.c
index 84b6bfb520..ecbf219597 100644
--- a/src/southbridge/nvidia/ck804/early_setup.c
+++ b/src/southbridge/nvidia/ck804/early_setup.c
@@ -288,6 +288,12 @@ static void ck804_early_setup(void)
 #endif
 #endif
 
+#if IS_ENABLED(CONFIG_CK804_PCIE_PME_WAKE)
+	RES_PCI_IO, PCI_ADDR(0, 1, 0, 0xe4), 0xffffffff, 0x00400000,
+#else
+	RES_PCI_IO, PCI_ADDR(0, 1, 0, 0xe4), 0xffbfffff, 0x00000000,
+#endif
+
 #ifdef CK804_MB_SETUP
 	CK804_MB_SETUP
 #endif
diff --git a/src/southbridge/nvidia/ck804/early_setup_car.c b/src/southbridge/nvidia/ck804/early_setup_car.c
index 53f2c5ef1b..d5a9956d78 100644
--- a/src/southbridge/nvidia/ck804/early_setup_car.c
+++ b/src/southbridge/nvidia/ck804/early_setup_car.c
@@ -211,6 +211,12 @@ static void ck804_early_setup(unsigned ck804_num, unsigned *busn,
 		RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0 + 0x0d, ~(0xff), ((0 << 4) | (2 << 2) | (0 << 0)),
 		RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0 + 0x1a, ~(0xff), ((0 << 4) | (2 << 2) | (0 << 0)),
 #endif
+
+#if IS_ENABLED(CONFIG_CK804_PCIE_PME_WAKE)
+		RES_PCI_IO, PCI_ADDR(0, 1, 0, 0xe4), 0xffffffff, 0x00400000,
+#else
+		RES_PCI_IO, PCI_ADDR(0, 1, 0, 0xe4), 0xffbfffff, 0x00000000,
+#endif
 	};
 
 	static const unsigned int ctrl_conf_multiple[] = {