reviewed-by: Minghuan Lian <Minghuan.Lian@xxxxxxx> > -----Original Message----- > From: Z.q. Hou > Sent: Tuesday, November 20, 2018 5:27 PM > To: linux-pci@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; > devicetree@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; > bhelgaas@xxxxxxxxxx; robh+dt@xxxxxxxxxx; mark.rutland@xxxxxxx; > l.subrahmanya@xxxxxxxxxxxxxx; shawnguo@xxxxxxxxxx; Leo Li > <leoyang.li@xxxxxxx>; lorenzo.pieralisi@xxxxxxx; > catalin.marinas@xxxxxxx; will.deacon@xxxxxxx > Cc: Mingkai Hu <mingkai.hu@xxxxxxx>; M.h. Lian > <minghuan.lian@xxxxxxx>; Xiaowei Bao <xiaowei.bao@xxxxxxx>; Z.q. Hou > <zhiqiang.hou@xxxxxxx> > Subject: [PATCHv2 14/25] PCI: mobiveil: initialize > Primary/Secondary/Subordinate bus number > > From: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx> > > The reset value is all zero, so set a workable value for Primary, Secondary > and Subordinate bus numbers. > > Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx> > --- > V2: > - no change > > drivers/pci/controller/pcie-mobiveil.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/pci/controller/pcie-mobiveil.c > b/drivers/pci/controller/pcie-mobiveil.c > index db7ecb021c63..9210165fe8c0 100644 > --- a/drivers/pci/controller/pcie-mobiveil.c > +++ b/drivers/pci/controller/pcie-mobiveil.c > @@ -582,6 +582,12 @@ static int mobiveil_host_init(struct mobiveil_pcie > *pcie) > u32 value, pab_ctrl, type; > struct resource_entry *win; > > + /* setup bus numbers */ > + value = csr_readl(pcie, PCI_PRIMARY_BUS); > + value &= 0xff000000; > + value |= 0x00ff0100; > + csr_writel(pcie, value, PCI_PRIMARY_BUS); > + > /* > * program Bus Master Enable Bit in Command Register in PAB Config > * Space > -- > 2.17.1
