On Tue, Oct 17, 2023 at 11:19:21AM +0200, Marek Szyprowski wrote:
> Dear All,
>
> On 11.10.2023 09:14, Yoshihiro Shimoda wrote:
> > According to the section 3.5.7.2 "RC Mode" in DWC PCIe Dual Mode
> > Rev.5.20a, we should disable two BARs to avoid unnecessary memory
> > assignment during device enumeration. Otherwise, Renesas R-Car Gen4
> > PCIe controllers cannot work correctly in host mode.
> >
> > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
>
> This patch landed in today's linux-next 20231017 as commit e308528cac3e
> ("PCI: dwc: Disable two BARs to avoid unnecessary memory assignment").
> Unfortunately it causes the following kernel panic on Samsung
> Exynos5433-based TM2e board:
I dropped the pci/controller/rcar branch for today until we resolve
this.
If you want to reorder the series like this:
PCI: Add T_PVPERL macro
PCI: dwc: Add dw_pcie_link_set_max_link_width()
PCI: dwc: Add missing PCI_EXP_LNKCAP_MLW handling
PCI: tegra194: Drop PCI_EXP_LNKSTA_NLW setting
PCI: dwc: endpoint: Add multiple PFs support for dbi2
PCI: dwc: Add EDMA_UNROLL capability flag
PCI: dwc: Expose dw_pcie_ep_exit() to module
PCI: dwc: endpoint: Introduce .pre_init() and .deinit()
PCI: dwc: Disable two BARs to avoid unnecessary memory assignment
dt-bindings: PCI: dwc: Update maxItems of reg and reg-names
dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Host
dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Endpoint
PCI: rcar-gen4: Add R-Car Gen4 PCIe controller support for host mode
PCI: rcar-gen4: Add endpoint mode support
MAINTAINERS: Update PCI DRIVER FOR RENESAS R-CAR for R-Car Gen4
misc: pci_endpoint_test: Add Device ID for R-Car S4-8 PCIe controller
I think the first four patches could be applied because they're useful
regardless of R-Car support.
The rest are only needed for R-Car, and it seems like we should apply
them all together as soon as this regression is solved.
Bjorn
