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authorBjorn Helgaas <bhelgaas@google.com>2017-02-21 22:14:18 +0100
committerBjorn Helgaas <bhelgaas@google.com>2017-02-21 22:14:18 +0100
commitd9520971589b008faa8df31aa2bb3d1e4f1c4534 (patch)
tree5bbb628245575e29e7b30c72e8c5bb26187225bd /drivers/pci/dwc/pcie-hisi.c
parentMerge branch 'pci/host-exynos' into next (diff)
parentPCI: generic: Call pci_fixup_irqs() only on ARM (diff)
downloadlinux-d9520971589b008faa8df31aa2bb3d1e4f1c4534.tar.xz
linux-d9520971589b008faa8df31aa2bb3d1e4f1c4534.zip
Merge branch 'pci/host-hisi' into next
* pci/host-hisi: PCI: generic: Call pci_fixup_irqs() only on ARM PCI: Disable MSI for HiSilicon Hip06/Hip07 Root Ports PCI: hisi: Rename config space accessors to remove "acpi" PCI: hisi: Add DT almost-ECAM support for Hip06/Hip07 host controllers PCI: hisi: Use of_device_get_match_data() to simplify probe Conflicts: drivers/pci/dwc/pcie-hisi.c
Diffstat (limited to 'drivers/pci/dwc/pcie-hisi.c')
-rw-r--r--drivers/pci/dwc/pcie-hisi.c82
1 files changed, 70 insertions, 12 deletions
diff --git a/drivers/pci/dwc/pcie-hisi.c b/drivers/pci/dwc/pcie-hisi.c
index 386467a4f00f..e3e4fedd9f68 100644
--- a/drivers/pci/dwc/pcie-hisi.c
+++ b/drivers/pci/dwc/pcie-hisi.c
@@ -24,10 +24,10 @@
#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)
+static int hisi_pcie_rd_conf(struct pci_bus *bus, u32 devfn, int where,
+ int size, u32 *val)
{
struct pci_config_window *cfg = bus->sysdata;
int dev = PCI_SLOT(devfn);
@@ -44,8 +44,8 @@ static int hisi_pcie_acpi_rd_conf(struct pci_bus *bus, u32 devfn, int where,
return pci_generic_config_read(bus, devfn, where, size, val);
}
-static int hisi_pcie_acpi_wr_conf(struct pci_bus *bus, u32 devfn,
- int where, int size, u32 val)
+static int hisi_pcie_wr_conf(struct pci_bus *bus, u32 devfn,
+ int where, int size, u32 val)
{
struct pci_config_window *cfg = bus->sysdata;
int dev = PCI_SLOT(devfn);
@@ -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;
@@ -110,8 +112,8 @@ struct pci_ecam_ops hisi_pcie_ops = {
.init = hisi_pcie_init,
.pci_ops = {
.map_bus = hisi_pcie_map_bus,
- .read = hisi_pcie_acpi_rd_conf,
- .write = hisi_pcie_acpi_wr_conf,
+ .read = hisi_pcie_rd_conf,
+ .write = hisi_pcie_wr_conf,
}
};
@@ -139,7 +141,7 @@ struct hisi_pcie {
struct dw_pcie *pci;
struct regmap *subctrl;
u32 port_id;
- struct pcie_soc_ops *soc_ops;
+ const struct pcie_soc_ops *soc_ops;
};
/* HipXX PCIe host only supports 32-bit config access */
@@ -265,7 +267,6 @@ static int hisi_pcie_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct dw_pcie *pci;
struct hisi_pcie *hisi_pcie;
- const struct of_device_id *match;
struct resource *reg;
struct device_driver *driver;
int ret;
@@ -283,11 +284,10 @@ static int hisi_pcie_probe(struct platform_device *pdev)
driver = dev->driver;
- match = of_match_device(driver->of_match_table, dev);
- hisi_pcie->soc_ops = (struct pcie_soc_ops *) match->data;
+ hisi_pcie->soc_ops = of_device_get_match_data(dev);
hisi_pcie->subctrl =
- syscon_regmap_lookup_by_compatible("hisilicon,pcie-sas-subctrl");
+ syscon_regmap_lookup_by_compatible("hisilicon,pcie-sas-subctrl");
if (IS_ERR(hisi_pcie->subctrl)) {
dev_err(dev, "cannot get subctrl base\n");
return PTR_ERR(hisi_pcie->subctrl);
@@ -336,4 +336,62 @@ 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_rd_conf,
+ .write = hisi_pcie_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