From mboxrd@z Thu Jan 1 00:00:00 1970 From: steven.lin1@broadcom.com (Steve Lin) Date: Wed, 22 Feb 2017 15:42:26 -0500 Subject: [PATCH 2/2] ARM: dts: NSP: Add mailbox (PDC) to NSP In-Reply-To: <1487796146-14690-1-git-send-email-steven.lin1@broadcom.com> References: <1487796146-14690-1-git-send-email-steven.lin1@broadcom.com> Message-ID: <1487796146-14690-3-git-send-email-steven.lin1@broadcom.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Adds mailbox / PDC to NSP device tree. Needs new compatibility string to differentiate from NS2 version. Signed-off-by: Steve Lin --- .../devicetree/bindings/mailbox/brcm,iproc-pdc-mbox.txt | 6 ++++-- arch/arm/boot/dts/bcm-nsp.dtsi | 9 +++++++++ 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 at 25000 { + compatible = "brcm,iproc-fa2-mbox"; + reg = <0x25000 0x445>; + interrupts = ; + #mbox-cells = <1>; + brcm,rx-status-len = <32>; + brcm,use-bcm-hdr; + }; + nand: nand at 26000 { compatible = "brcm,nand-iproc", "brcm,brcmnand-v6.1"; reg = <0x026000 0x600>, -- 2.1.0