| Message ID | 20230925072130.3901087-13-yoshihiro.shimoda.uh@renesas.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Krzysztof Wilczyński |
| Headers | show |
| Series | PCI: dwc: rcar-gen4: Add R-Car Gen4 PCIe support | expand |
On Mon, Sep 25, 2023 at 04:21:26PM +0900, Yoshihiro Shimoda wrote: > According to the PCI Express Card Electromechanical Specification, > Power stable to PERST# inactive interval is 100 ms as minimum. > So, add the macro to use PCIe controller drivers. > > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> -Serge(y) > --- > drivers/pci/pci.h | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h > index 39a8932dc340..5ecbcf041179 100644 > --- a/drivers/pci/pci.h > +++ b/drivers/pci/pci.h > @@ -13,6 +13,9 @@ > > #define PCIE_LINK_RETRAIN_TIMEOUT_MS 1000 > > +/* Power stable to PERST# inactive from PCIe card Electromechanical Spec */ > +#define PCIE_T_PVPERL_MS 100 > + > /* > * PCIe r6.0, sec 5.3.3.2.1 <PME Synchronization> > * Recommends 1ms to 10ms timeout to check L2 ready. > -- > 2.25.1 >
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 39a8932dc340..5ecbcf041179 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -13,6 +13,9 @@ #define PCIE_LINK_RETRAIN_TIMEOUT_MS 1000 +/* Power stable to PERST# inactive from PCIe card Electromechanical Spec */ +#define PCIE_T_PVPERL_MS 100 + /* * PCIe r6.0, sec 5.3.3.2.1 <PME Synchronization> * Recommends 1ms to 10ms timeout to check L2 ready.
According to the PCI Express Card Electromechanical Specification, Power stable to PERST# inactive interval is 100 ms as minimum. So, add the macro to use PCIe controller drivers. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> --- drivers/pci/pci.h | 3 +++ 1 file changed, 3 insertions(+)