diff options
Diffstat (limited to 'drivers/pci/host/pcie-hisi.c')
| -rw-r--r-- | drivers/pci/host/pcie-hisi.c | 62 |
1 files changed, 61 insertions, 1 deletions
diff --git a/drivers/pci/host/pcie-hisi.c b/drivers/pci/host/pcie-hisi.c index 33c201afdbf1..cf3338f3e4f0 100644 --- a/drivers/pci/host/pcie-hisi.c +++ b/drivers/pci/host/pcie-hisi.c @@ -24,7 +24,7 @@ #include <linux/regmap.h> #include "../pci.h" -#if defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS) +#if defined(CONFIG_PCI_HISI) || (defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS)) static int hisi_pcie_acpi_rd_conf(struct pci_bus *bus, u32 devfn, int where, int size, u32 *val) @@ -74,6 +74,8 @@ static void __iomem *hisi_pcie_map_bus(struct pci_bus *bus, unsigned int devfn, return pci_ecam_map_bus(bus, devfn, where); } +#if defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS) + static int hisi_pcie_init(struct pci_config_window *cfg) { struct device *dev = cfg->parent; @@ -321,4 +323,62 @@ static struct platform_driver hisi_pcie_driver = { }; builtin_platform_driver(hisi_pcie_driver); +static int hisi_pcie_almost_ecam_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct pci_ecam_ops *ops; + + ops = (struct pci_ecam_ops *)of_device_get_match_data(dev); + return pci_host_common_probe(pdev, ops); +} + +static int hisi_pcie_platform_init(struct pci_config_window *cfg) +{ + struct device *dev = cfg->parent; + struct platform_device *pdev = to_platform_device(dev); + struct resource *res; + void __iomem *reg_base; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!res) { + dev_err(dev, "missing \"reg[1]\"property\n"); + return -EINVAL; + } + + reg_base = devm_ioremap(dev, res->start, resource_size(res)); + if (!reg_base) + return -ENOMEM; + + cfg->priv = reg_base; + return 0; +} + +struct pci_ecam_ops hisi_pcie_platform_ops = { + .bus_shift = 20, + .init = hisi_pcie_platform_init, + .pci_ops = { + .map_bus = hisi_pcie_map_bus, + .read = hisi_pcie_acpi_rd_conf, + .write = hisi_pcie_acpi_wr_conf, + } +}; + +static const struct of_device_id hisi_pcie_almost_ecam_of_match[] = { + { + .compatible = "hisilicon,pcie-almost-ecam", + .data = (void *) &hisi_pcie_platform_ops, + }, + {}, +}; + +static struct platform_driver hisi_pcie_almost_ecam_driver = { + .probe = hisi_pcie_almost_ecam_probe, + .driver = { + .name = "hisi-pcie-almost-ecam", + .of_match_table = hisi_pcie_almost_ecam_of_match, + }, +}; +builtin_platform_driver(hisi_pcie_almost_ecam_driver); + +#endif #endif |