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| author | Ray Jui <rjui@broadcom.com> | 2015-07-27 15:42:18 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2015-07-29 22:07:02 +0200 |
| commit | db9d6d790968fd6df9faa7fa1f51967e05afd492 (patch) | |
| tree | eede2b62108892ad86a63b49ed91aa7da75c79cb /drivers/pci | |
| parent | af429d9ebf70916269bd5ad3e2bd2485fb0f39e6 (diff) | |
| download | linux-db9d6d790968fd6df9faa7fa1f51967e05afd492.tar.gz linux-db9d6d790968fd6df9faa7fa1f51967e05afd492.tar.bz2 linux-db9d6d790968fd6df9faa7fa1f51967e05afd492.zip | |
PCI: iproc: enable arm64 support for iProc PCIe
PCI: iproc: Add arm64 support
Add arm64 support to the iProc PCIe driver.
Note that on arm32, bus->sysdata points to the arm32-specific
pci_sys_data struct, and pci_sys_data.private_data contains the
iproc_pcie pointer. For arm64, there's nothing corresponding to
pci_sys_data, so we keep the iproc_pcie pointer directly in
bus->sysdata.
In addition, arm64 does IRQ mapping in pcibios_add_device(), so it
doesn't need pci_fixup_irqs() as arm32 does.
Signed-off-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/host/pcie-iproc.c | 27 | ||||
| -rw-r--r-- | drivers/pci/host/pcie-iproc.h | 4 |
2 files changed, 23 insertions, 8 deletions
diff --git a/drivers/pci/host/pcie-iproc.c b/drivers/pci/host/pcie-iproc.c index d77481ea553e..ba087b57961d 100644 --- a/drivers/pci/host/pcie-iproc.c +++ b/drivers/pci/host/pcie-iproc.c @@ -58,9 +58,17 @@ #define SYS_RC_INTX_EN 0x330 #define SYS_RC_INTX_MASK 0xf -static inline struct iproc_pcie *sys_to_pcie(struct pci_sys_data *sys) +static inline struct iproc_pcie *iproc_data(struct pci_bus *bus) { - return sys->private_data; + struct iproc_pcie *pcie; +#ifdef CONFIG_ARM + struct pci_sys_data *sys = bus->sysdata; + + pcie = sys->private_data; +#else + pcie = bus->sysdata; +#endif + return pcie; } /** @@ -71,8 +79,7 @@ static void __iomem *iproc_pcie_map_cfg_bus(struct pci_bus *bus, unsigned int devfn, int where) { - struct pci_sys_data *sys = bus->sysdata; - struct iproc_pcie *pcie = sys_to_pcie(sys); + struct iproc_pcie *pcie = iproc_data(bus); unsigned slot = PCI_SLOT(devfn); unsigned fn = PCI_FUNC(devfn); unsigned busno = bus->number; @@ -186,6 +193,7 @@ static void iproc_pcie_enable(struct iproc_pcie *pcie) int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res) { int ret; + void *sysdata; struct pci_bus *bus; if (!pcie || !pcie->dev || !pcie->base) @@ -208,10 +216,13 @@ int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res) iproc_pcie_reset(pcie); +#ifdef CONFIG_ARM pcie->sysdata.private_data = pcie; - - bus = pci_create_root_bus(pcie->dev, 0, &iproc_pcie_ops, - &pcie->sysdata, res); + sysdata = &pcie->sysdata; +#else + sysdata = pcie; +#endif + bus = pci_create_root_bus(pcie->dev, 0, &iproc_pcie_ops, sysdata, res); if (!bus) { dev_err(pcie->dev, "unable to create PCI root bus\n"); ret = -ENOMEM; @@ -229,7 +240,9 @@ int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res) pci_scan_child_bus(bus); pci_assign_unassigned_bus_resources(bus); +#ifdef CONFIG_ARM pci_fixup_irqs(pci_common_swizzle, pcie->map_irq); +#endif pci_bus_add_devices(bus); return 0; diff --git a/drivers/pci/host/pcie-iproc.h b/drivers/pci/host/pcie-iproc.h index ba0a108309cc..c9e4c10a462e 100644 --- a/drivers/pci/host/pcie-iproc.h +++ b/drivers/pci/host/pcie-iproc.h @@ -21,7 +21,7 @@ * @dev: pointer to device data structure * @base: PCIe host controller I/O register base * @resources: linked list of all PCI resources - * @sysdata: Per PCI controller data + * @sysdata: Per PCI controller data (ARM-specific) * @root_bus: pointer to root bus * @phy: optional PHY device that controls the Serdes * @irqs: interrupt IDs @@ -29,7 +29,9 @@ struct iproc_pcie { struct device *dev; void __iomem *base; +#ifdef CONFIG_ARM struct pci_sys_data sysdata; +#endif struct pci_bus *root_bus; struct phy *phy; int irqs[IPROC_PCIE_MAX_NUM_IRQS]; |