On Wed, Feb 22, 2017 at 3:42 PM, Steve Lin <steven.lin1@xxxxxxxxxxxx> wrote:
> Adds mailbox / PDC to NSP device tree. Needs new compatibility string
> to differentiate from NS2 version.
>
> Signed-off-by: Steve Lin <steven.lin1@xxxxxxxxxxxx>
> ---
> .../devicetree/bindings/mailbox/brcm,iproc-pdc-mbox.txt | 6 ++++--
> arch/arm/boot/dts/bcm-nsp.dtsi | 9 +++++++++
I believe it is preferred to have a separate patch for the binding
documentation.
Aside from that, it looks fine to me.
Thanks,
Jon
> 2 files changed, 13 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/mailbox/brcm,iproc-pdc-mbox.txt b/Documentation/devicetree/bindings/mailbox/brcm,iproc-pdc-mbox.txt
> index 411ccf4..0f3ee81 100644
> --- a/Documentation/devicetree/bindings/mailbox/brcm,iproc-pdc-mbox.txt
> +++ b/Documentation/devicetree/bindings/mailbox/brcm,iproc-pdc-mbox.txt
> @@ -1,9 +1,11 @@
> The PDC driver manages data transfer to and from various offload engines
> on some Broadcom SoCs. An SoC may have multiple PDC hardware blocks. There is
> -one device tree entry per block.
> +one device tree entry per block. On some chips, the PDC functionality is
> +handled by the FA2 (Northstar Plus).
>
> Required properties:
> -- compatible : Should be "brcm,iproc-pdc-mbox".
> +- compatible : Should be "brcm,iproc-pdc-mbox" or "brcm,iproc-fa2-mbox" for
> + FA2/Northstar Plus.
> - reg: Should contain PDC registers location and length.
> - interrupts: Should contain the IRQ line for the PDC.
> - #mbox-cells: 1
> diff --git a/arch/arm/boot/dts/bcm-nsp.dtsi b/arch/arm/boot/dts/bcm-nsp.dtsi
> index 15f07f9..8b56d74 100644
> --- a/arch/arm/boot/dts/bcm-nsp.dtsi
> +++ b/arch/arm/boot/dts/bcm-nsp.dtsi
> @@ -227,6 +227,15 @@
> status = "disabled";
> };
>
> + mailbox: mailbox@25000 {
> + compatible = "brcm,iproc-fa2-mbox";
> + reg = <0x25000 0x445>;
> + interrupts = <GIC_SPI 150 IRQ_TYPE_LEVEL_HIGH>;
> + #mbox-cells = <1>;
> + brcm,rx-status-len = <32>;
> + brcm,use-bcm-hdr;
> + };
> +
> nand: nand@26000 {
> compatible = "brcm,nand-iproc", "brcm,brcmnand-v6.1";
> reg = <0x026000 0x600>,
> --
> 2.1.0
>
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