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| author | Thierry Reding <treding@nvidia.com> | 2014-08-26 17:33:54 +0200 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2014-10-22 16:56:41 -0600 |
| commit | 9f85eee72a2a3918b2d5cd7b1bf88da69232dede (patch) | |
| tree | 18ad49344920b3e9721550b4172f623f126412f9 /include/fdtdec.h | |
| parent | 56f42242f020254ea1c383694edb072e3a5ca6d6 (diff) | |
| download | u-boot-imx-9f85eee72a2a3918b2d5cd7b1bf88da69232dede.zip u-boot-imx-9f85eee72a2a3918b2d5cd7b1bf88da69232dede.tar.gz u-boot-imx-9f85eee72a2a3918b2d5cd7b1bf88da69232dede.tar.bz2 | |
fdt: Add a function to return PCI BDF triplet
The fdtdec_pci_get_bdf() function returns the bus, device, function
triplet of a PCI device by parsing the "reg" property according to the
PCI device tree binding.
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'include/fdtdec.h')
| -rw-r--r-- | include/fdtdec.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/fdtdec.h b/include/fdtdec.h index 8b24deb..99cb353 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -649,4 +649,15 @@ int fdt_get_named_resource(const void *fdt, int node, const char *property, const char *prop_names, const char *name, struct fdt_resource *res); +/** + * Look at the reg property of a device node that represents a PCI device + * and parse the bus, device and function number from it. + * + * @param fdt FDT blob + * @param node node to examine + * @param bdf returns bus, device, function triplet + * @return 0 if ok, negative on error + */ +int fdtdec_pci_get_bdf(const void *fdt, int node, int *bdf); + #endif |