From: Dong Aisheng <aisheng.dong@nxp.com> To: linux-arm-kernel@lists.infradead.org Cc: Dong Aisheng <aisheng.dong@nxp.com>, Mark Rutland <mark.rutland@arm.com>, dongas86@gmail.com, devicetree@vger.kernel.org, Rob Herring <robh+dt@kernel.org>, linux-imx@nxp.com, kernel@pengutronix.de, fabio.estevam@nxp.com, shawnguo@kernel.org Subject: [PATCH V2 3/4] dt-bindings: arm: fsl: add scu binding doc Date: Sun, 17 Jun 2018 20:49:48 +0800 [thread overview] Message-ID: <1529239789-26849-4-git-send-email-aisheng.dong@nxp.com> (raw) In-Reply-To: <1529239789-26849-1-git-send-email-aisheng.dong@nxp.com> The System Controller Firmware (SCFW) is a low-level system function which runs on a dedicated Cortex-M core to provide power, clock, and resource management. It exists on some i.MX8 processors. e.g. i.MX8QM (QM, QP), and i.MX8QX (QXP, DX). Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> --- v1->v2: * remove status * changed to mu1 --- .../devicetree/bindings/arm/freescale/fsl,scu.txt | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt new file mode 100644 index 0000000..9b7c9fe --- /dev/null +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt @@ -0,0 +1,38 @@ +NXP i.MX System Controller Firmware (SCFW) +-------------------------------------------------------------------- + +The System Controller Firmware (SCFW) is a low-level system function +which runs on a dedicated Cortex-M core to provide power, clock, and +resource management. It exists on some i.MX8 processors. e.g. i.MX8QM +(QM, QP), and i.MX8QX (QXP, DX). + +The AP communicates with the SC using a multi-ported MU module found +in the LSIO subsystem. The current definition of this MU module provides +5 remote AP connections to the SC to support up to 5 execution environments +(TZ, HV, standard Linux, etc.). The SC side of this MU module interfaces +with the LSIO DSC IP bus. The SC firmware will communicate with this MU +using the MSI bus. + +System Controller Device Node: +============================= + +Required properties: +------------------- +- compatible: should be "fsl,imx8qxp-scu" or "fsl,imx8qm-scu" +- fsl,mu: a phandle to the Message Unit used by SCU. Should be + one of LSIO MU0~M4 for imx8qxp and imx8qm. Users need + to make sure not use the one which is conflict with + other execution environments. e.g. ATF. + +Examples: +-------- +lsio_mu1: mu@5d1c0000 { + compatible = "fsl,imx8qxp-mu"; + reg = <0x0 0x5d1c0000 0x0 0x10000>; + interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>; +}; + +scu { + compatible = "fsl,imx8qxp-scu"; + fsl,mu = <&lsio_mu1>; +}; -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: aisheng.dong@nxp.com (Dong Aisheng) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH V2 3/4] dt-bindings: arm: fsl: add scu binding doc Date: Sun, 17 Jun 2018 20:49:48 +0800 [thread overview] Message-ID: <1529239789-26849-4-git-send-email-aisheng.dong@nxp.com> (raw) In-Reply-To: <1529239789-26849-1-git-send-email-aisheng.dong@nxp.com> The System Controller Firmware (SCFW) is a low-level system function which runs on a dedicated Cortex-M core to provide power, clock, and resource management. It exists on some i.MX8 processors. e.g. i.MX8QM (QM, QP), and i.MX8QX (QXP, DX). Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree at vger.kernel.org Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> --- v1->v2: * remove status * changed to mu1 --- .../devicetree/bindings/arm/freescale/fsl,scu.txt | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt new file mode 100644 index 0000000..9b7c9fe --- /dev/null +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt @@ -0,0 +1,38 @@ +NXP i.MX System Controller Firmware (SCFW) +-------------------------------------------------------------------- + +The System Controller Firmware (SCFW) is a low-level system function +which runs on a dedicated Cortex-M core to provide power, clock, and +resource management. It exists on some i.MX8 processors. e.g. i.MX8QM +(QM, QP), and i.MX8QX (QXP, DX). + +The AP communicates with the SC using a multi-ported MU module found +in the LSIO subsystem. The current definition of this MU module provides +5 remote AP connections to the SC to support up to 5 execution environments +(TZ, HV, standard Linux, etc.). The SC side of this MU module interfaces +with the LSIO DSC IP bus. The SC firmware will communicate with this MU +using the MSI bus. + +System Controller Device Node: +============================= + +Required properties: +------------------- +- compatible: should be "fsl,imx8qxp-scu" or "fsl,imx8qm-scu" +- fsl,mu: a phandle to the Message Unit used by SCU. Should be + one of LSIO MU0~M4 for imx8qxp and imx8qm. Users need + to make sure not use the one which is conflict with + other execution environments. e.g. ATF. + +Examples: +-------- +lsio_mu1: mu at 5d1c0000 { + compatible = "fsl,imx8qxp-mu"; + reg = <0x0 0x5d1c0000 0x0 0x10000>; + interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>; +}; + +scu { + compatible = "fsl,imx8qxp-scu"; + fsl,mu = <&lsio_mu1>; +}; -- 2.7.4
next prev parent reply other threads:[~2018-06-17 12:49 UTC|newest] Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-06-17 12:49 [PATCH V2 0/4] soc: imx: add scu firmware api support Dong Aisheng 2018-06-17 12:49 ` [PATCH V2 1/4] soc: imx: add mu library functions support Dong Aisheng 2018-06-17 12:49 ` [PATCH V2 2/4] dt-bindings: arm: fsl: add mu binding doc Dong Aisheng 2018-06-17 12:49 ` Dong Aisheng 2018-06-20 19:43 ` Rob Herring 2018-06-20 19:43 ` Rob Herring 2018-06-21 7:46 ` Sascha Hauer 2018-06-21 7:46 ` Sascha Hauer 2018-06-21 17:11 ` A.s. Dong 2018-06-21 17:11 ` A.s. Dong 2018-06-21 18:08 ` Oleksij Rempel 2018-06-21 18:08 ` Oleksij Rempel 2018-06-22 3:31 ` A.s. Dong 2018-06-22 3:31 ` A.s. Dong 2018-06-22 4:59 ` Oleksij Rempel 2018-06-22 4:59 ` Oleksij Rempel 2018-06-22 5:59 ` A.s. Dong 2018-06-22 5:59 ` A.s. Dong 2018-06-22 6:48 ` Oleksij Rempel 2018-06-22 6:48 ` Oleksij Rempel 2018-06-22 8:16 ` A.s. Dong 2018-06-22 8:16 ` A.s. Dong 2018-06-22 5:49 ` Sascha Hauer 2018-06-22 5:49 ` Sascha Hauer 2018-06-22 6:04 ` A.s. Dong 2018-06-22 6:04 ` A.s. Dong 2018-06-17 12:49 ` Dong Aisheng [this message] 2018-06-17 12:49 ` [PATCH V2 3/4] dt-bindings: arm: fsl: add scu " Dong Aisheng 2018-06-20 19:44 ` Rob Herring 2018-06-20 19:44 ` Rob Herring 2018-06-21 3:38 ` A.s. Dong 2018-06-21 3:38 ` A.s. Dong 2018-06-21 7:37 ` Sascha Hauer 2018-06-21 7:37 ` Sascha Hauer 2018-06-21 12:05 ` A.s. Dong 2018-06-21 12:05 ` A.s. Dong [not found] ` <1529239789-26849-5-git-send-email-aisheng.dong@nxp.com> 2018-06-18 8:58 ` [PATCH V2 4/4] soc: imx: add SC firmware IPC and APIs Leonard Crestez
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=1529239789-26849-4-git-send-email-aisheng.dong@nxp.com \ --to=aisheng.dong@nxp.com \ --cc=devicetree@vger.kernel.org \ --cc=dongas86@gmail.com \ --cc=fabio.estevam@nxp.com \ --cc=kernel@pengutronix.de \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-imx@nxp.com \ --cc=mark.rutland@arm.com \ --cc=robh+dt@kernel.org \ --cc=shawnguo@kernel.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.