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authorMichael Ellerman <mpe@ellerman.id.au>2014-10-04 02:59:06 +0400
committerMichael Ellerman <mpe@ellerman.id.au>2014-10-04 02:59:06 +0400
commit75d43b2d0a323ba894d85060888f039e41b441ca (patch)
tree2f49ace1f85510e8b21974e6dd45dfcc2a87666a /Documentation/devicetree/bindings/pci
parentd0b7abb2c7c05552aca2a0358c53b6a48eab2843 (diff)
parentcb0446c1b625326682ec4f9d1dd10779433646bc (diff)
downloadlinux-75d43b2d0a323ba894d85060888f039e41b441ca.tar.xz
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux.git
Freescale updates from Scott (27 commits): "Highlights include DMA32 zone support (SATA, USB, etc now works on 64-bit FSL kernels), MSI changes, 8xx optimizations and cleanup, t104x board support, and PrPMC PCI enumeration."
Diffstat (limited to 'Documentation/devicetree/bindings/pci')
-rw-r--r--Documentation/devicetree/bindings/pci/fsl,pci.txt27
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/fsl,pci.txt b/Documentation/devicetree/bindings/pci/fsl,pci.txt
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+* Bus Enumeration by Freescale PCI-X Agent
+
+Typically any Freescale PCI-X bridge hardware strapped into Agent mode
+is prevented from enumerating the bus. The PrPMC form-factor requires
+all mezzanines to be PCI-X Agents, but one per system may still
+enumerate the bus.
+
+The property defined below will allow a PCI-X bridge to be used for bus
+enumeration despite being strapped into Agent mode.
+
+Required properties:
+- fsl,pci-agent-force-enum : There is no value associated with this
+ property. The property itself is treated as a boolean.
+
+Example:
+
+ /* PCI-X bridge known to be PrPMC Monarch */
+ pci0: pci@ef008000 {
+ fsl,pci-agent-force-enum;
+ #interrupt-cells = <1>;
+ #size-cells = <2>;
+ #address-cells = <3>;
+ compatible = "fsl,mpc8540-pcix", "fsl,mpc8540-pci";
+ device_type = "pci";
+ ...
+ ...
+ };