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pci: plda: Get correct ECAM offset in multiple PCIe RC case

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

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
This commit is contained in:
Minda Chen
2023-08-07 16:53:35 +08:00
committed by Leo Yu-Chi Liang
parent 6982e6b046
commit 8d184d4b65
1 changed files with 3 additions and 2 deletions
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5
drivers/pci/pcie_plda_common.c
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@@ -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);
}