forked from Minki/linux
00406e8772
The following commit prevents the MPC8548E on the XPedite5200 PrPMC
module from enumerating its PCI/PCI-X bus:
powerpc/fsl-pci: use 'Header Type' to identify PCIE mode
The previous patch prevents any Freescale PCI-X bridge from enumerating
the bus, if it is hardware strapped into Agent mode.
In PCI-X, the Host is responsible for driving the PCI-X initialization
pattern to devices on the bus, so that they know whether to operate in
conventional PCI or PCI-X mode as well as what the bus timing will be.
For a PCI-X PrPMC, the pattern is driven by the mezzanine carrier it is
installed onto. Therefore, PrPMCs are PCI-X Agents, but one per system
may still enumerate the bus.
This patch causes the device node of any PCI/PCI-X bridge strapped into
Agent mode to be checked for the fsl,pci-agent-force-enum property. If
the property is present in the node, the bridge will be allowed to
enumerate the bus.
Cc: Minghuan Lian <Minghuan.Lian@freescale.com>
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
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| .. | ||
| 83xx-512x-pci.txt | ||
| designware-pcie.txt | ||
| fsl,imx6q-pcie.txt | ||
| fsl,pci.txt | ||
| host-generic-pci.txt | ||
| mvebu-pci.txt | ||
| nvidia,tegra20-pcie.txt | ||
| pci-rcar-gen2.txt | ||
| pci.txt | ||
| ralink,rt3883-pci.txt | ||
| rcar-pci.txt | ||
| samsung,exynos5440-pcie.txt | ||
| v3-v360epc-pci.txt | ||