diff options
| -rw-r--r-- | drivers/pci/controller/pci-aardvark.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index 78c39320def4..cb4327657136 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -436,7 +436,7 @@ advk_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge, case PCI_EXP_RTCTL: { u32 val = advk_readl(pcie, PCIE_ISR0_MASK_REG); - *value = (val & PCIE_MSG_PM_PME_MASK) ? PCI_EXP_RTCTL_PMEIE : 0; + *value = (val & PCIE_MSG_PM_PME_MASK) ? 0 : PCI_EXP_RTCTL_PMEIE; return PCI_BRIDGE_EMUL_HANDLED; } @@ -486,10 +486,15 @@ advk_pci_bridge_emul_pcie_conf_write(struct pci_bridge_emul *bridge, advk_pcie_wait_for_retrain(pcie); break; - case PCI_EXP_RTCTL: - new = (new & PCI_EXP_RTCTL_PMEIE) << 3; - advk_writel(pcie, new, PCIE_ISR0_MASK_REG); + case PCI_EXP_RTCTL: { + /* Only mask/unmask PME interrupt */ + u32 val = advk_readl(pcie, PCIE_ISR0_MASK_REG) & + ~PCIE_MSG_PM_PME_MASK; + if ((new & PCI_EXP_RTCTL_PMEIE) == 0) + val |= PCIE_MSG_PM_PME_MASK; + advk_writel(pcie, val, PCIE_ISR0_MASK_REG); break; + } case PCI_EXP_RTSTA: new = (new & PCI_EXP_RTSTA_PME) >> 9; |