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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


  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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