| Message ID | 1484216786-17292-31-git-send-email-kishon@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
On Thu, Jan 12, 2017 at 03:56:19PM +0530, Kishon Vijay Abraham I wrote: > Update device tree binding documentation of TI's dra7xx PCI > controller to include property for enabling legacy mode. > > Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> > --- > Documentation/devicetree/bindings/pci/ti-pci.txt | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/pci/ti-pci.txt b/Documentation/devicetree/bindings/pci/ti-pci.txt > index 62f5f59..ed85e8e 100644 > --- a/Documentation/devicetree/bindings/pci/ti-pci.txt > +++ b/Documentation/devicetree/bindings/pci/ti-pci.txt > @@ -39,6 +39,10 @@ DEVICE MODE > - interrupts : one interrupt entries must be specified for main interrupt. > - num-ib-windows : number of inbound address translation windows > - num-ob-windows : number of outbound address translation windows > + - syscon-legacy-mode: phandle to the syscon dt node. The 1st argument should > + contain the register offset within syscon and the 2nd > + argument should contain the bit field for setting the > + legacy mode What's legacy mode? > > Optional Property: > - gpios : Should be added if a gpio line is required to drive PERST# line > -- > 1.7.9.5 > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi, On Thursday 19 January 2017 03:16 AM, Rob Herring wrote: > On Thu, Jan 12, 2017 at 03:56:19PM +0530, Kishon Vijay Abraham I wrote: >> Update device tree binding documentation of TI's dra7xx PCI >> controller to include property for enabling legacy mode. >> >> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> >> --- >> Documentation/devicetree/bindings/pci/ti-pci.txt | 4 ++++ >> 1 file changed, 4 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/pci/ti-pci.txt b/Documentation/devicetree/bindings/pci/ti-pci.txt >> index 62f5f59..ed85e8e 100644 >> --- a/Documentation/devicetree/bindings/pci/ti-pci.txt >> +++ b/Documentation/devicetree/bindings/pci/ti-pci.txt >> @@ -39,6 +39,10 @@ DEVICE MODE >> - interrupts : one interrupt entries must be specified for main interrupt. >> - num-ib-windows : number of inbound address translation windows >> - num-ob-windows : number of outbound address translation windows >> + - syscon-legacy-mode: phandle to the syscon dt node. The 1st argument should >> + contain the register offset within syscon and the 2nd >> + argument should contain the bit field for setting the >> + legacy mode > > What's legacy mode? It's the name of the bit-field defined in TRM used to add workaround for errata id i870 (See [PATCH 29/37] PCI: dwc: dra7xx: Workaround for errata id i870 of this series). I'm not sure what it does internally. Thanks Kishon
diff --git a/Documentation/devicetree/bindings/pci/ti-pci.txt b/Documentation/devicetree/bindings/pci/ti-pci.txt index 62f5f59..ed85e8e 100644 --- a/Documentation/devicetree/bindings/pci/ti-pci.txt +++ b/Documentation/devicetree/bindings/pci/ti-pci.txt @@ -39,6 +39,10 @@ DEVICE MODE - interrupts : one interrupt entries must be specified for main interrupt. - num-ib-windows : number of inbound address translation windows - num-ob-windows : number of outbound address translation windows + - syscon-legacy-mode: phandle to the syscon dt node. The 1st argument should + contain the register offset within syscon and the 2nd + argument should contain the bit field for setting the + legacy mode Optional Property: - gpios : Should be added if a gpio line is required to drive PERST# line
Update device tree binding documentation of TI's dra7xx PCI controller to include property for enabling legacy mode. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> --- Documentation/devicetree/bindings/pci/ti-pci.txt | 4 ++++ 1 file changed, 4 insertions(+)