bcma: add PCIe host controller
Some SoCs have a PCIe host controller to make it possible to attach
some other devices to it, like an other Wifi card.
This code was tested with an Netgear WNDR3400 (bcm4716 based), but
should work with all bcma based SoCs.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/linux/bcma/bcma_driver_pci.h b/include/linux/bcma/bcma_driver_pci.h
index 679d4ca..46c71e2 100644
--- a/include/linux/bcma/bcma_driver_pci.h
+++ b/include/linux/bcma/bcma_driver_pci.h
@@ -160,9 +160,44 @@
/* PCIcore specific boardflags */
#define BCMA_CORE_PCI_BFL_NOPCI 0x00000400 /* Board leaves PCI floating */
+/* PCIE Config space accessing MACROS */
+#define BCMA_CORE_PCI_CFG_BUS_SHIFT 24 /* Bus shift */
+#define BCMA_CORE_PCI_CFG_SLOT_SHIFT 19 /* Slot/Device shift */
+#define BCMA_CORE_PCI_CFG_FUN_SHIFT 16 /* Function shift */
+#define BCMA_CORE_PCI_CFG_OFF_SHIFT 0 /* Register shift */
+
+#define BCMA_CORE_PCI_CFG_BUS_MASK 0xff /* Bus mask */
+#define BCMA_CORE_PCI_CFG_SLOT_MASK 0x1f /* Slot/Device mask */
+#define BCMA_CORE_PCI_CFG_FUN_MASK 7 /* Function mask */
+#define BCMA_CORE_PCI_CFG_OFF_MASK 0xfff /* Register mask */
+
+/* PCIE Root Capability Register bits (Host mode only) */
+#define BCMA_CORE_PCI_RC_CRS_VISIBILITY 0x0001
+
+struct bcma_drv_pci;
+
+#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
+struct bcma_drv_pci_host {
+ struct bcma_drv_pci *pdev;
+
+ u32 host_cfg_addr;
+ spinlock_t cfgspace_lock;
+
+ struct pci_controller pci_controller;
+ struct pci_ops pci_ops;
+ struct resource mem_resource;
+ struct resource io_resource;
+};
+#endif
+
struct bcma_drv_pci {
struct bcma_device *core;
u8 setup_done:1;
+ u8 hostmode:1;
+
+#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
+ struct bcma_drv_pci_host *host_controller;
+#endif
};
/* Register access */
@@ -173,4 +208,7 @@
extern int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc,
struct bcma_device *core, bool enable);
+extern int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev);
+extern int bcma_core_pci_plat_dev_init(struct pci_dev *dev);
+
#endif /* LINUX_BCMA_DRIVER_PCI_H_ */