diff options
Diffstat (limited to 'drivers/pci/controller/pcie-mediatek-gen3.c')
| -rw-r--r-- | drivers/pci/controller/pcie-mediatek-gen3.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/pci/controller/pcie-mediatek-gen3.c b/drivers/pci/controller/pcie-mediatek-gen3.c index 3e8d70bfabc6..5d9fd36b02d1 100644 --- a/drivers/pci/controller/pcie-mediatek-gen3.c +++ b/drivers/pci/controller/pcie-mediatek-gen3.c @@ -838,6 +838,14 @@ static int mtk_pcie_setup(struct mtk_gen3_pcie *pcie) if (err) return err; + /* + * The controller may have been left out of reset by the bootloader + * so make sure that we get a clean start by asserting resets here. + */ + reset_control_assert(pcie->phy_reset); + reset_control_assert(pcie->mac_reset); + usleep_range(10, 20); + /* Don't touch the hardware registers before power up */ err = mtk_pcie_power_up(pcie); if (err) |