openwrt/target/linux/mediatek/patches-6.6/611-pcie-mediatek-gen3-PERS...

18 lines
572 B
Diff

--- a/drivers/pci/controller/pcie-mediatek-gen3.c
+++ b/drivers/pci/controller/pcie-mediatek-gen3.c
@@ -375,7 +375,13 @@ static int mtk_pcie_startup_port(struct
msleep(100);
/* De-assert reset signals */
- val &= ~(PCIE_MAC_RSTB | PCIE_PHY_RSTB | PCIE_BRG_RSTB | PCIE_PE_RSTB);
+ val &= ~(PCIE_MAC_RSTB | PCIE_PHY_RSTB | PCIE_BRG_RSTB);
+ writel_relaxed(val, pcie->base + PCIE_RST_CTRL_REG);
+
+ msleep(100);
+
+ /* De-assert PERST# signals */
+ val &= ~(PCIE_PE_RSTB);
writel_relaxed(val, pcie->base + PCIE_RST_CTRL_REG);
/* Check if the link is up or not */