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| author | Simon Glass <sjg@chromium.org> | 2015-07-06 16:47:46 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-07-21 17:39:39 -0600 |
| commit | 4b515e4fc53f7675935a40a37ebf0c384e776914 (patch) | |
| tree | 4d32fa142fc6d0a095a89a932707cd07d2c49db5 | |
| parent | d0a5a0b2d800ddf248a7a843e5efba72d19059cc (diff) | |
| download | u-boot-imx-4b515e4fc53f7675935a40a37ebf0c384e776914.zip u-boot-imx-4b515e4fc53f7675935a40a37ebf0c384e776914.tar.gz u-boot-imx-4b515e4fc53f7675935a40a37ebf0c384e776914.tar.bz2 | |
dm: pci: Add a function to get the BDF for a device
It is useful to be able to find the full PCI address (bus, device and
function) for a PCI device. Add a function to provide this.
Adjust the existing code to use this.
Signed-off-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | drivers/pci/pci-uclass.c | 15 | ||||
| -rw-r--r-- | drivers/pci/pci_compat.c | 8 | ||||
| -rw-r--r-- | include/pci.h | 8 |
3 files changed, 19 insertions, 12 deletions
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c index 41daa0d..3be76c9 100644 --- a/drivers/pci/pci-uclass.c +++ b/drivers/pci/pci-uclass.c @@ -30,6 +30,14 @@ struct pci_controller *pci_bus_to_hose(int busnum) return dev_get_uclass_priv(bus); } +pci_dev_t pci_get_bdf(struct udevice *dev) +{ + struct pci_child_platdata *pplat = dev_get_parent_platdata(dev); + struct udevice *bus = dev->parent; + + return PCI_ADD_BUS(bus->seq, pplat->devfn); +} + /** * pci_get_bus_max() - returns the bus number of the last active bus * @@ -295,19 +303,14 @@ int pci_auto_config_devices(struct udevice *bus) for (ret = device_find_first_child(bus, &dev); !ret && dev; ret = device_find_next_child(&dev)) { - struct pci_child_platdata *pplat; struct pci_controller *ctlr_hose; - - pplat = dev_get_parent_platdata(dev); unsigned int max_bus; - pci_dev_t bdf; - bdf = PCI_ADD_BUS(bus->seq, pplat->devfn); debug("%s: device %s\n", __func__, dev->name); /* The root controller has the region information */ ctlr_hose = hose->ctlr->uclass_priv; - max_bus = pciauto_config_device(ctlr_hose, bdf); + max_bus = pciauto_config_device(ctlr_hose, pci_get_bdf(dev)); sub_bus = max(sub_bus, max_bus); } debug("%s: done\n", __func__); diff --git a/drivers/pci/pci_compat.c b/drivers/pci/pci_compat.c index d6938c1..05c3510 100644 --- a/drivers/pci/pci_compat.c +++ b/drivers/pci/pci_compat.c @@ -31,13 +31,9 @@ PCI_HOSE_OP(write, dword, 32, u32) pci_dev_t pci_find_devices(struct pci_device_id *ids, int index) { - struct pci_child_platdata *pplat; - struct udevice *bus, *dev; + struct udevice *dev; if (pci_find_device_id(ids, index, &dev)) return -1; - bus = dev->parent; - pplat = dev_get_parent_platdata(dev); - - return PCI_ADD_BUS(bus->seq, pplat->devfn); + return pci_get_bdf(dev); } diff --git a/include/pci.h b/include/pci.h index 021928f..94bca97 100644 --- a/include/pci.h +++ b/include/pci.h @@ -808,6 +808,14 @@ struct dm_pci_ops { #define pci_get_ops(dev) ((struct dm_pci_ops *)(dev)->driver->ops) /** + * pci_get_bdf() - Get the BDF value for a device + * + * @dev: Device to check + * @return bus/device/function value (see PCI_BDF()) + */ +pci_dev_t pci_get_bdf(struct udevice *dev); + +/** * pci_bind_bus_devices() - scan a PCI bus and bind devices * * Scan a PCI bus looking for devices. Bind each one that is found. If |