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SubjectRe: [PATCH v4 15/23] dt-bindings: PCI: dra7xx: Add dt bindings to enable unaligned access
On Mon, Mar 13, 2017 at 07:52:51PM +0530, Kishon Vijay Abraham I wrote:
> Update device tree binding documentation of TI's dra7xx PCI
> controller to include property for enabling unaligned mem access.
>
> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> ---
> Documentation/devicetree/bindings/pci/ti-pci.txt | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/pci/ti-pci.txt b/Documentation/devicetree/bindings/pci/ti-pci.txt
> index 190828a5f32a..b69dd7dbd29e 100644
> --- a/Documentation/devicetree/bindings/pci/ti-pci.txt
> +++ b/Documentation/devicetree/bindings/pci/ti-pci.txt
> @@ -39,6 +39,11 @@ 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
> + - ti,syscon-unaligned-access: 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 bit to enable unaligned
> + access.

This should be setup by the firmware/bootloader or some platform code.
Why does the PCI host need to configure this?

Rob

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