diff options
Diffstat (limited to 'drivers/pci/pci-aardvark.c')
| -rw-r--r-- | drivers/pci/pci-aardvark.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/pci/pci-aardvark.c b/drivers/pci/pci-aardvark.c index 38eff49..9e623b6 100644 --- a/drivers/pci/pci-aardvark.c +++ b/drivers/pci/pci-aardvark.c @@ -445,7 +445,7 @@ static int pcie_advk_read_config(const struct udevice *bus, pci_dev_t bdf, * for returning CRS, so that if U-Boot does support CRS in the future, * it will work for Aardvark. */ - allow_crs = pcie->cfgcrssve; + allow_crs = (offset == PCI_VENDOR_ID) && (size == PCI_SIZE_32) && pcie->cfgcrssve; if (advk_readl(pcie, PIO_START)) { dev_err(pcie->dev, @@ -581,6 +581,10 @@ static int pcie_advk_write_config(struct udevice *bus, pci_dev_t bdf, if (offset >= 0x10 && offset < 0x34) { data = pcie->cfgcache[(offset - 0x10) / 4]; data = pci_conv_size_to_32(data, value, offset, size); + /* This PCI bridge does not have configurable bars */ + if ((offset & ~3) == PCI_BASE_ADDRESS_0 || + (offset & ~3) == PCI_BASE_ADDRESS_1) + data = 0x0; pcie->cfgcache[(offset - 0x10) / 4] = data; } else if ((offset & ~3) == PCI_ROM_ADDRESS1) { data = advk_readl(pcie, PCIE_CORE_EXP_ROM_BAR_REG); |