Introduces the PCIE_PME_TO_L2_TIMEOUT_US macro to facilitate checking the PME (Power Management Event) timeout in the PCI subsystem. Signed-off-by: Frank Li <Frank.Li@xxxxxxx> --- drivers/pci/pci.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index a4c3974340576..da8156663c825 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -13,6 +13,12 @@ #define PCIE_LINK_RETRAIN_TIMEOUT_MS 1000 +/* + * PCIe r6.0, sec 5.3.3.2.1 <PME Synchronization> + * Recommends 1ms to 10ms timeout to check L2 ready. + */ +#define PCIE_PME_TO_L2_TIMEOUT_US 10000 + extern const unsigned char pcie_link_speed[]; extern bool pci_early_dump; -- 2.34.1
