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pci: Getw correct config addr to support multi PCI

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subtract the root bus number to get the correct
config addr.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
This commit is contained in:
Minda Chen 2023-07-26 10:00:28 +08:00
parent 1ed1ed24eb
commit 2a3dedd340
1 changed files with 8 additions and 8 deletions
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16
drivers/pci/pcie_starfive.c
View file

@ -110,9 +110,9 @@ static int starfive_pcie_addr_valid(pci_dev_t bdf, int first_busno)
return 1;
}
static int starfive_pcie_off_conf(pci_dev_t bdf, uint offset)
static int starfive_pcie_off_conf(pci_dev_t bdf, uint offset, int first_busno)
{
unsigned int bus = PCI_BUS(bdf);
unsigned int bus = PCI_BUS(bdf) - first_busno;
unsigned int dev = PCI_DEV(bdf);
unsigned int func = PCI_FUNC(bdf);
@ -120,10 +120,10 @@ static int starfive_pcie_off_conf(pci_dev_t bdf, uint offset)
(func << ECAM_FUNC_SHIFT) | (offset & ~0x3);
}
static bool plda_pcie_hide_rc_bar(pci_dev_t bdf, int offset)
static bool plda_pcie_hide_rc_bar(pci_dev_t bdf, int offset, int first_busno)
{
if ((PCI_BUS(bdf) == 0) &&
(offset == PCI_BASE_ADDRESS_0 || offset == PCI_BASE_ADDRESS_1))
if ((PCI_BUS(bdf) == first_busno) &&
(offset == PCI_BASE_ADDRESS_0 || offset == PCI_BASE_ADDRESS_1))
return true;
return false;
@ -136,7 +136,7 @@ static int starfive_pcie_config_read(const struct udevice *udev, pci_dev_t bdf,
void __iomem *addr;
ulong value;
struct starfive_pcie *priv = dev_get_priv(udev);
int where = starfive_pcie_off_conf(bdf, offset);
int where = starfive_pcie_off_conf(bdf, offset, priv->first_busno);
if (!starfive_pcie_addr_valid(bdf, priv->first_busno)) {
pr_debug("Out of range\n");
@ -168,9 +168,9 @@ int starfive_pcie_config_write(struct udevice *udev, pci_dev_t bdf,
void __iomem *addr;
ulong old;
struct starfive_pcie *priv = dev_get_priv(udev);
int where = starfive_pcie_off_conf(bdf, offset);
int where = starfive_pcie_off_conf(bdf, offset, priv->first_busno);
if (plda_pcie_hide_rc_bar(bdf, offset))
if (plda_pcie_hide_rc_bar(bdf, offset, priv->first_busno))
return -1;
if (!starfive_pcie_addr_valid(bdf, priv->first_busno)) {