diff options
| author | Hou Zhiqiang | 2019-07-05 11:56:38 +0200 |
|---|---|---|
| committer | Lorenzo Pieralisi | 2019-07-08 13:28:44 +0200 |
| commit | 6f3ab451aa5c2cbff33197d82fe8489cbd55ad91 (patch) | |
| tree | 550934011745bc287c12f033cd96bbcdb4f19952 /drivers/pci/controller | |
| parent | PCI: mobiveil: Move IRQ chained handler setup out of DT parse (diff) | |
| download | kernel-qcow2-linux-6f3ab451aa5c2cbff33197d82fe8489cbd55ad91.tar.gz kernel-qcow2-linux-6f3ab451aa5c2cbff33197d82fe8489cbd55ad91.tar.xz kernel-qcow2-linux-6f3ab451aa5c2cbff33197d82fe8489cbd55ad91.zip | |
PCI: mobiveil: Initialize Primary/Secondary/Subordinate bus numbers
The reset value of Primary, Secondary and Subordinate bus numbers is
zero which is a broken setup.
Program a sensible default value for Primary/Secondary/Subordinate
bus numbers.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Reviewed-by: Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>
Diffstat (limited to 'drivers/pci/controller')
| -rw-r--r-- | drivers/pci/controller/pcie-mobiveil.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c index cdf15cca526e..8f561300a88e 100644 --- a/drivers/pci/controller/pcie-mobiveil.c +++ b/drivers/pci/controller/pcie-mobiveil.c @@ -561,6 +561,12 @@ static int mobiveil_host_init(struct mobiveil_pcie *pcie) u32 value, pab_ctrl, type = 0; 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 |