From: peng.fan@nxp.com
To: shawnguo@kernel.org, s.hauer@pengutronix.de,
jassisinghbrar@gmail.com, o.rempel@pengutronix.de,
robh+dt@kernel.org
Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
Anson.Huang@nxp.com, leonard.crestez@nxp.com,
aisheng.dong@nxp.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Peng Fan <peng.fan@nxp.com>
Subject: [PATCH V3 1/4] dt-bindings: mailbox: imx-mu: add SCU MU support
Date: Wed, 26 Feb 2020 12:40:40 +0800 [thread overview]
Message-ID: <1582692043-683-2-git-send-email-peng.fan@nxp.com> (raw)
In-Reply-To: <1582692043-683-1-git-send-email-peng.fan@nxp.com>
From: Peng Fan <peng.fan@nxp.com>
i.MX8/8X SCU MU is dedicated for communication between SCU
and Cortex-A cores from hardware design, it could not be reused
for other purpose. To use SCU MU more effectivly, add "fsl,imx8-scu-mu"
compatile to support fast IPC.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
V3:
New patch
Documentation/devicetree/bindings/mailbox/fsl,mu.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/mailbox/fsl,mu.txt b/Documentation/devicetree/bindings/mailbox/fsl,mu.txt
index 9c43357c5924..31486c9f6443 100644
--- a/Documentation/devicetree/bindings/mailbox/fsl,mu.txt
+++ b/Documentation/devicetree/bindings/mailbox/fsl,mu.txt
@@ -23,6 +23,8 @@ Required properties:
be included together with SoC specific compatible.
There is a version 1.0 MU on imx7ulp, use "fsl,imx7ulp-mu"
compatible to support it.
+ To communicate with i.MX8 SCU, "fsl,imx8-mu-scu" could be
+ used for fast IPC
- reg : Should contain the registers location and length
- interrupts : Interrupt number. The interrupt specifier format depends
on the interrupt controller parent.
--
2.16.4
next prev parent reply other threads:[~2020-02-26 4:46 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-26 4:40 [PATCH V3 0/4] mailbox/firmware: imx: support SCU channel type peng.fan
2020-02-26 4:40 ` peng.fan [this message]
2020-02-26 4:40 ` [PATCH V3 2/4] mailbox: imx: restructure code to make easy for new MU peng.fan
2020-03-02 9:10 ` Oleksij Rempel
2020-03-02 9:58 ` Peng Fan
2020-03-02 10:05 ` Oleksij Rempel
2020-02-26 4:40 ` [PATCH V3 3/4] mailbox: imx: add SCU MU support peng.fan
2020-03-02 9:47 ` Oleksij Rempel
2020-03-02 10:04 ` Peng Fan
2020-02-26 4:40 ` [PATCH V3 4/4] firmware: imx-scu: Support one TX and one RX peng.fan
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