diff options
| -rw-r--r-- | drivers/pci/pcie_layerscape.c | 68 |
1 files changed, 17 insertions, 51 deletions
diff --git a/drivers/pci/pcie_layerscape.c b/drivers/pci/pcie_layerscape.c index 610f85c4e8..0cb7f6d564 100644 --- a/drivers/pci/pcie_layerscape.c +++ b/drivers/pci/pcie_layerscape.c @@ -241,14 +241,19 @@ static int ls_pcie_addr_valid(struct ls_pcie *pcie, pci_dev_t bdf) return 0; } -void *ls_pcie_conf_address(struct ls_pcie *pcie, pci_dev_t bdf, - int offset) +int ls_pcie_conf_address(struct udevice *bus, pci_dev_t bdf, + uint offset, void **paddress) { - struct udevice *bus = pcie->bus; + struct ls_pcie *pcie = dev_get_priv(bus); u32 busdev; - if (PCI_BUS(bdf) == bus->seq) - return pcie->dbi + offset; + if (ls_pcie_addr_valid(pcie, bdf)) + return -EINVAL; + + if (PCI_BUS(bdf) == bus->seq) { + *paddress = pcie->dbi + offset; + return 0; + } busdev = PCIE_ATU_BUS(PCI_BUS(bdf)) | PCIE_ATU_DEV(PCI_DEV(bdf)) | @@ -256,67 +261,28 @@ void *ls_pcie_conf_address(struct ls_pcie *pcie, pci_dev_t bdf, if (PCI_BUS(bdf) == bus->seq + 1) { ls_pcie_cfg0_set_busdev(pcie, busdev); - return pcie->cfg0 + offset; + *paddress = pcie->cfg0 + offset; } else { ls_pcie_cfg1_set_busdev(pcie, busdev); - return pcie->cfg1 + offset; + *paddress = pcie->cfg1 + offset; } + return 0; } static int ls_pcie_read_config(struct udevice *bus, pci_dev_t bdf, uint offset, ulong *valuep, enum pci_size_t size) { - struct ls_pcie *pcie = dev_get_priv(bus); - void *address; - - if (ls_pcie_addr_valid(pcie, bdf)) { - *valuep = pci_get_ff(size); - return 0; - } - - address = ls_pcie_conf_address(pcie, bdf, offset); - - switch (size) { - case PCI_SIZE_8: - *valuep = readb(address); - return 0; - case PCI_SIZE_16: - *valuep = readw(address); - return 0; - case PCI_SIZE_32: - *valuep = readl(address); - return 0; - default: - return -EINVAL; - } + return pci_generic_mmap_read_config(bus, ls_pcie_conf_address, + bdf, offset, valuep, size); } static int ls_pcie_write_config(struct udevice *bus, pci_dev_t bdf, uint offset, ulong value, enum pci_size_t size) { - struct ls_pcie *pcie = dev_get_priv(bus); - void *address; - - if (ls_pcie_addr_valid(pcie, bdf)) - return 0; - - address = ls_pcie_conf_address(pcie, bdf, offset); - - switch (size) { - case PCI_SIZE_8: - writeb(value, address); - return 0; - case PCI_SIZE_16: - writew(value, address); - return 0; - case PCI_SIZE_32: - writel(value, address); - return 0; - default: - return -EINVAL; - } + return pci_generic_mmap_write_config(bus, ls_pcie_conf_address, + bdf, offset, value, size); } /* Clear multi-function bit */ |