From: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx> The reset value of Primary, Secondary and Subordinate bus numbers is zero, so set a workable value for these 3 bus numbers. Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx> Reviewed-by: Minghuan Lian <Minghuan.Lian@xxxxxxx> Reviewed-by: Subrahmanya Lingappa <l.subrahmanya@xxxxxxxxxxxxxx> --- V5: - Corrected and retouched the subject and changelog. 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
