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Message-Id: <1405630645-15337-3-git-send-email-fkan@apm.com> Date: Thu, 17 Jul 2014 13:57:24 -0700 From: Feng Kan <fkan@....com> To: patches@....com, jaswinder.singh@...aro.org, =devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Cc: Feng Kan <fkan@....com> Subject: [PATCH 2/3] Documentation: mailbox: Add APM X-Gene SlimPro mailbox dts documentation This adds the APM X-Gene Slimpro mailbox device tree node documentation. Signed-off-by: Feng Kan <fkan@....com> --- .../bindings/mailbox/xgene-slimpro-mailbox.txt | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/xgene-slimpro-mailbox.txt diff --git a/Documentation/devicetree/bindings/mailbox/xgene-slimpro-mailbox.txt b/Documentation/devicetree/bindings/mailbox/xgene-slimpro-mailbox.txt new file mode 100644 index 0000000..43e14393 --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/xgene-slimpro-mailbox.txt @@ -0,0 +1,41 @@ +The APM X-Gene SLIMpro mailbox driver is used to communicate messages between +the ARM64 processors and the Cortex M3 (dubbed SLIMpro). It uses a simple +interrupt based door bell mechanism and can exchange simple messages using the +internal registers. + +There are total of 8 interrupts in this mailbox. Each used for an individual +door bell (or mailbox channel). + +Required properties: +- compatible: Should be as "apm, xgene-slimpro-mbox". + +- reg: Contain the mailbox register address range. + +- interrupts: Contain interrupt information for the mailbox device. + +- #mbox-cells: Specify the number of parameters used by the mailbox client. + Currently only one to specify the mailbox channel number. + +Example: + +Mailbox Node: + mailbox: slimpro-mailbox@...40000 { + compatible = "apm,xgene-slimpro-mbox"; + reg = <0x0 0x10540000 0x0 0xa000>; + #mbox-cells = <1>; + interrupts = <0x0 0x0 0x4>, + <0x0 0x1 0x4>, + <0x0 0x2 0x4>, + <0x0 0x3 0x4>, + <0x0 0x4 0x4>, + <0x0 0x5 0x4>, + <0x0 0x6 0x4>, + <0x0 0x7 0x4>; + }; + +Client Node: + i2cslimpro { + compatible = "apm,xgene-slimpro-i2c"; + mbox = <&mailbox 0>; + mbox-names = "i2c-slimpro"; + }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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