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| author | Hemant Pedanekar | 2011-04-05 09:02:50 +0200 |
|---|---|---|
| committer | Jesse Barnes | 2011-05-11 00:43:31 +0200 |
| commit | 63c4408074cbcc070ac17fc10e524800eb9bd0b0 (patch) | |
| tree | 9fddfe53b9a8bc0e8ae43503f01f293daaff577c | |
| parent | PCI: Fix uninitialized variable bug in AER injection code (diff) | |
| download | kernel-qcow2-linux-63c4408074cbcc070ac17fc10e524800eb9bd0b0.tar.gz kernel-qcow2-linux-63c4408074cbcc070ac17fc10e524800eb9bd0b0.tar.xz kernel-qcow2-linux-63c4408074cbcc070ac17fc10e524800eb9bd0b0.zip | |
PCI: Add quirk for setting valid class for TI816X Endpoint
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>
| -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 5129ed6d8fa7..4b2bbe813fce 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2784,6 +2784,16 @@ 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) { |