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| author | Hemant Pedanekar <hemantp@ti.com> | 2011-04-05 11:02:50 +0400 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2012-05-17 19:20:41 +0400 |
| commit | b5c7034dbdf8a0a5f32a4db9af3345d033b1bf49 (patch) | |
| tree | 5d839b8846ccaba78486d09df9dac72f3269cc58 /drivers/pci | |
| parent | 1239f38ef01c3e1e83d188a9f264cf4404561f76 (diff) | |
| download | linux-b5c7034dbdf8a0a5f32a4db9af3345d033b1bf49.tar.xz | |
PCI: Add quirk for setting valid class for TI816X Endpoint
commit 63c4408074cbcc070ac17fc10e524800eb9bd0b0 upstream.
TI816X (common name for DM816x/C6A816x/AM389x family) devices configured
to boot as PCIe Endpoint have class code = 0. This makes kernel PCI bus
code to skip allocating BARs to these devices resulting into following
type of error when trying to enable them:
"Device 0000:01:00.0 not available because of resource collisions"
The device cannot be operated because of the above issue.
This patch adds a ID specific (TI VENDOR ID and 816X DEVICE ID based)
'early' fixup quirk to replace class code with
PCI_CLASS_MULTIMEDIA_VIDEO as class.
Signed-off-by: Hemant Pedanekar <hemantp@ti.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/quirks.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 46aca60123f8..6938fdc41e79 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2682,6 +2682,16 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors); #endif +static void __devinit fixup_ti816x_class(struct pci_dev* dev) +{ + /* TI 816x devices do not have class code set when in PCIe boot mode */ + if (dev->class == PCI_CLASS_NOT_DEFINED) { + dev_info(&dev->dev, "Setting PCI class for 816x PCIe device\n"); + dev->class = PCI_CLASS_MULTIMEDIA_VIDEO; + } +} +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_TI, 0xb800, fixup_ti816x_class); + static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end) { |