Hi Xiaowei, On Fri, May 17, 2019 at 10:23 AM Xiaowei Bao <xiaowei....@nxp.com> wrote: > > > > -----Original Message----- > From: Bin Meng <bmeng...@gmail.com> > Sent: 2019年5月16日 19:58 > To: Xiaowei Bao <xiaowei....@nxp.com> > Cc: M.h. Lian <minghuan.l...@nxp.com>; Z.q. Hou <zhiqiang....@nxp.com>; > Mingkai Hu <mingkai...@nxp.com>; Hongbo Wang <hongbo.w...@nxp.com>; York Sun > <york....@nxp.com>; u-boot@lists.denx.de; Jiafei Pan <jiafei....@nxp.com> > Subject: [EXT] Re: [U-Boot] [PATCHv2 1/2] PCI: layerscape: Add Support for > ls2088 PCIe EP mode > > Caution: EXT Email > > Hi, > > On Thu, May 16, 2019 at 7:02 PM Xiaowei Bao <xiaowei....@nxp.com> wrote: > > > > From: Xiaowei Bao <xiaowei....@nxp.com> > > > > Signed-off-by: hongbo.wang <hongbo.w...@nxp.com> > > Signed-off-by: Minghuan Lian <minghuan.l...@nxp.com> > > Signed-off-by: Xiaowei Bao <xiaowei....@nxp.com> > > --- > > v2: > > - Add the NXP copyright and make the function readability. > > > > drivers/pci/pcie_layerscape.c | 117 > > +++++++++++++++++++++++++++-------------- > > drivers/pci/pcie_layerscape.h | 19 +++++-- > > 2 files changed, 91 insertions(+), 45 deletions(-) > > > > Could you please support the PCIe EP mode using driver model? > [Xiaowei Bao] do you mean that add a EP driver model to separate the RC and > EP with their respective drivers?
That's correct. > The purpose of adding EP support under u-boot is to configure the size of the > BAR when the PCIE controller is used as an EP device, and to ensure that the > configuration space of the EP can be accessed, so that when the RC scans the > bus, the EP device can be scanned, and we also can do simple MEM read and > write verification through the md command in u-boot shell. > When entering the kernel, the kernel has its own PCIE EP framework, which > will reinitialize the EP device, contain of the inbound and outbound window > configure, MSI configuration and so no. > It's not kernel PCIe EP framework. Ramon Fried recently added PCIe EP uclass support to U-Boot and you should add NXP layerscape PCIe EP driver using the new EP uclass. See http://patchwork.ozlabs.org/project/uboot/list/?series=104952 Regards, Bin _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
