[RESEND, v1 1/4] pci: plda: Get correct ECAM offset in multiple PCIe RC case

Minda Chen
2023-08-07T08:53:51Z

Get the correct ECAM offset and record the secondary bus
number in Multiple RC case.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
---
drivers/pci/pcie_plda_common.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/pcie_plda_common.c b/drivers/pci/pcie_plda_common.c
index 005b92616a..cd74bb4711 100644
--- a/drivers/pci/pcie_plda_common.c
+++ b/drivers/pci/pcie_plda_common.c
@@ -36,8 +36,8 @@ static int plda_pcie_conf_address(const struct udevice *udev, pci_dev_t bdf,
uint offset, void **paddr)
{
struct pcie_plda *priv = dev_get_priv(udev);
- int where = PCIE_ECAM_OFFSET(PCI_BUS(bdf), PCI_DEV(bdf),
- PCI_FUNC(bdf), offset);
+ int where = PCIE_ECAM_OFFSET(PCI_BUS(bdf) - dev_seq(udev),
+ PCI_DEV(bdf), PCI_FUNC(bdf), offset);

if (!plda_pcie_addr_valid(priv, bdf))
return -ENODEV;
@@ -71,6 +71,7 @@ int plda_pcie_config_write(struct udevice *udev, pci_dev_t bdf,
(offset == PCI_PRIMARY_BUS && size != PCI_SIZE_8))) {
priv->sec_busno =
((offset == PCI_PRIMARY_BUS) ? (value >> 8) : value) & 0xff;
+ priv->sec_busno += dev_seq(udev);
debug("Secondary bus number was changed to %d\n",
priv->sec_busno);
}
--
2.17.1