diff options
| author | Minghuan Lian <Minghuan.Lian@nxp.com> | 2017-10-20 05:45:50 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-11-17 18:53:45 +0300 |
| commit | 3977dcd559e392b9a2f3c69e317527cbe8b6ae15 (patch) | |
| tree | 84c91000d21dcce79230b794f25296591157a463 /drivers/pci/pci_auto.c | |
| parent | 9587dee937bcedc07d06af4aafd4361c8c200023 (diff) | |
| download | u-boot-3977dcd559e392b9a2f3c69e317527cbe8b6ae15.tar.xz | |
dm: pci: change bus number register setting compliant with Linux
This patch is to change U-Boot PCI bus assignement compliant with Linux.
It means each PCIe controller's bus number is 0, not the current maximum
PCI bus number, when start to scan this controller.
Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'drivers/pci/pci_auto.c')
| -rw-r--r-- | drivers/pci/pci_auto.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c index ee9a854bda..c2bc32678a 100644 --- a/drivers/pci/pci_auto.c +++ b/drivers/pci/pci_auto.c @@ -181,8 +181,8 @@ void dm_pciauto_prescan_setup_bridge(struct udevice *dev, int sub_bus) /* Configure bus number registers */ dm_pci_write_config8(dev, PCI_PRIMARY_BUS, - PCI_BUS(dm_pci_get_bdf(dev))); - dm_pci_write_config8(dev, PCI_SECONDARY_BUS, sub_bus); + PCI_BUS(dm_pci_get_bdf(dev)) - ctlr->seq); + dm_pci_write_config8(dev, PCI_SECONDARY_BUS, sub_bus - ctlr->seq); dm_pci_write_config8(dev, PCI_SUBORDINATE_BUS, 0xff); if (pci_mem) { @@ -257,7 +257,7 @@ void dm_pciauto_postscan_setup_bridge(struct udevice *dev, int sub_bus) pci_io = ctlr_hose->pci_io; /* Configure bus number registers */ - dm_pci_write_config8(dev, PCI_SUBORDINATE_BUS, sub_bus); + dm_pci_write_config8(dev, PCI_SUBORDINATE_BUS, sub_bus - ctlr->seq); if (pci_mem) { /* Round memory allocator to 1MB boundary */ |