diff options
Diffstat (limited to 'drivers/pci/controller/dwc/pci-exynos.c')
-rw-r--r-- | drivers/pci/controller/dwc/pci-exynos.c | 45 |
1 files changed, 25 insertions, 20 deletions
diff --git a/drivers/pci/controller/dwc/pci-exynos.c b/drivers/pci/controller/dwc/pci-exynos.c index 8d82c43ae299..242683cde04a 100644 --- a/drivers/pci/controller/dwc/pci-exynos.c +++ b/drivers/pci/controller/dwc/pci-exynos.c @@ -336,32 +336,37 @@ static void exynos_pcie_write_dbi(struct dw_pcie *pci, void __iomem *base, exynos_pcie_sideband_dbi_w_mode(ep, false); } -static int exynos_pcie_rd_own_conf(struct pcie_port *pp, int where, int size, - u32 *val) +static int exynos_pcie_rd_own_conf(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 *val) { - struct dw_pcie *pci = to_dw_pcie_from_pp(pp); - struct exynos_pcie *ep = to_exynos_pcie(pci); - int ret; + struct dw_pcie *pci = to_dw_pcie_from_pp(bus->sysdata); - exynos_pcie_sideband_dbi_r_mode(ep, true); - ret = dw_pcie_read(pci->dbi_base + where, size, val); - exynos_pcie_sideband_dbi_r_mode(ep, false); - return ret; + if (PCI_SLOT(devfn)) { + *val = ~0; + return PCIBIOS_DEVICE_NOT_FOUND; + } + + *val = dw_pcie_read_dbi(pci, where, size); + return PCIBIOS_SUCCESSFUL; } -static int exynos_pcie_wr_own_conf(struct pcie_port *pp, int where, int size, - u32 val) +static int exynos_pcie_wr_own_conf(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 val) { - struct dw_pcie *pci = to_dw_pcie_from_pp(pp); - struct exynos_pcie *ep = to_exynos_pcie(pci); - int ret; + struct dw_pcie *pci = to_dw_pcie_from_pp(bus->sysdata); - exynos_pcie_sideband_dbi_w_mode(ep, true); - ret = dw_pcie_write(pci->dbi_base + where, size, val); - exynos_pcie_sideband_dbi_w_mode(ep, false); - return ret; + if (PCI_SLOT(devfn)) + return PCIBIOS_DEVICE_NOT_FOUND; + + dw_pcie_write_dbi(pci, where, size, val); + return PCIBIOS_SUCCESSFUL; } +static struct pci_ops exynos_pci_ops = { + .read = exynos_pcie_rd_own_conf, + .write = exynos_pcie_wr_own_conf, +}; + static int exynos_pcie_link_up(struct dw_pcie *pci) { struct exynos_pcie *ep = to_exynos_pcie(pci); @@ -379,6 +384,8 @@ static int exynos_pcie_host_init(struct pcie_port *pp) struct dw_pcie *pci = to_dw_pcie_from_pp(pp); struct exynos_pcie *ep = to_exynos_pcie(pci); + pp->bridge->ops = &exynos_pci_ops; + exynos_pcie_establish_link(ep); exynos_pcie_enable_interrupts(ep); @@ -386,8 +393,6 @@ static int exynos_pcie_host_init(struct pcie_port *pp) } static const struct dw_pcie_host_ops exynos_pcie_host_ops = { - .rd_own_conf = exynos_pcie_rd_own_conf, - .wr_own_conf = exynos_pcie_wr_own_conf, .host_init = exynos_pcie_host_init, }; |