From: Arnaud Pouliquen <arnaud.pouliquen@st.com> To: Rob Herring <robh@kernel.org>, Alexandre Torgue <alexandre.torgue@st.com> Cc: <devicetree@vger.kernel.org>, <linux-stm32@st-md-mailman.stormreply.com>, <linux-arm-kernel@lists.infradead.org>, <linux-remoteproc@vger.kernel.org>, <linux-kernel@vger.kernel.org>, Fabien Dessenne <fabien.dessenne@st.com>, Arnaud Pouliquen <arnaud.pouliquen@st.com>, Mathieu Poirier <mathieu.poirier@linaro.org>, Ohad Ben-Cohen <ohad@wizery.com>, Bjorn Andersson <bjorn.andersson@linaro.org> Subject: [PATCH 3/3] ARM: dts: stm32: update stm32mp151 for remote proc synchronisation support Date: Thu, 27 Aug 2020 09:21:01 +0200 [thread overview] Message-ID: <20200827072101.26588-4-arnaud.pouliquen@st.com> (raw) In-Reply-To: <20200827072101.26588-1-arnaud.pouliquen@st.com> Two backup registers are used to store the Cortex-M4 state and the resource table address. Declare the tamp node and add associated properties in m4_rproc node to allow Linux to attach to a firmware loaded by the first boot stages. Associated driver implementation is available in commit 9276536f455b3 ("remoteproc: stm32: Parse syscon that will manage M4 synchronisation"). Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> --- arch/arm/boot/dts/stm32mp151.dtsi | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/boot/dts/stm32mp151.dtsi b/arch/arm/boot/dts/stm32mp151.dtsi index bfe29023fbd5..842ecffae73a 100644 --- a/arch/arm/boot/dts/stm32mp151.dtsi +++ b/arch/arm/boot/dts/stm32mp151.dtsi @@ -1541,6 +1541,11 @@ status = "disabled"; }; + tamp: tamp@5c00a000 { + compatible = "st,stm32-tamp", "syscon"; + reg = <0x5c00a000 0x400>; + }; + /* * Break node order to solve dependency probe issue between * pinctrl and exti. @@ -1717,6 +1722,8 @@ st,syscfg-holdboot = <&rcc 0x10C 0x1>; st,syscfg-tz = <&rcc 0x000 0x1>; st,syscfg-pdds = <&pwr_mcu 0x0 0x1>; + st,syscfg-rsc-tbl = <&tamp 0x144 0xFFFFFFFF>; + st,syscfg-m4-state = <&tamp 0x148 0xFFFFFFFF>; status = "disabled"; }; }; -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Arnaud Pouliquen <arnaud.pouliquen@st.com> To: Rob Herring <robh@kernel.org>, Alexandre Torgue <alexandre.torgue@st.com> Cc: Ohad Ben-Cohen <ohad@wizery.com>, devicetree@vger.kernel.org, Mathieu Poirier <mathieu.poirier@linaro.org>, Arnaud Pouliquen <arnaud.pouliquen@st.com>, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, Fabien Dessenne <fabien.dessenne@st.com>, Bjorn Andersson <bjorn.andersson@linaro.org>, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH 3/3] ARM: dts: stm32: update stm32mp151 for remote proc synchronisation support Date: Thu, 27 Aug 2020 09:21:01 +0200 [thread overview] Message-ID: <20200827072101.26588-4-arnaud.pouliquen@st.com> (raw) In-Reply-To: <20200827072101.26588-1-arnaud.pouliquen@st.com> Two backup registers are used to store the Cortex-M4 state and the resource table address. Declare the tamp node and add associated properties in m4_rproc node to allow Linux to attach to a firmware loaded by the first boot stages. Associated driver implementation is available in commit 9276536f455b3 ("remoteproc: stm32: Parse syscon that will manage M4 synchronisation"). Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> --- arch/arm/boot/dts/stm32mp151.dtsi | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/boot/dts/stm32mp151.dtsi b/arch/arm/boot/dts/stm32mp151.dtsi index bfe29023fbd5..842ecffae73a 100644 --- a/arch/arm/boot/dts/stm32mp151.dtsi +++ b/arch/arm/boot/dts/stm32mp151.dtsi @@ -1541,6 +1541,11 @@ status = "disabled"; }; + tamp: tamp@5c00a000 { + compatible = "st,stm32-tamp", "syscon"; + reg = <0x5c00a000 0x400>; + }; + /* * Break node order to solve dependency probe issue between * pinctrl and exti. @@ -1717,6 +1722,8 @@ st,syscfg-holdboot = <&rcc 0x10C 0x1>; st,syscfg-tz = <&rcc 0x000 0x1>; st,syscfg-pdds = <&pwr_mcu 0x0 0x1>; + st,syscfg-rsc-tbl = <&tamp 0x144 0xFFFFFFFF>; + st,syscfg-m4-state = <&tamp 0x148 0xFFFFFFFF>; status = "disabled"; }; }; -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-08-27 7:21 UTC|newest] Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-08-27 7:20 [PATCH 0/3] ARM: stm32: add DT properties for remote proc synchronisation Arnaud Pouliquen 2020-08-27 7:20 ` Arnaud Pouliquen 2020-08-27 7:20 ` [PATCH 1/3] dt-bindings: arm: stm32: Add compatible for syscon tamp node Arnaud Pouliquen 2020-08-27 7:20 ` Arnaud Pouliquen 2020-09-09 20:19 ` Rob Herring 2020-09-09 20:19 ` Rob Herring 2020-08-27 7:21 ` [PATCH 2/3] dt-bindings: remoteproc: stm32_rproc: update for firmware synchronization Arnaud Pouliquen 2020-08-27 7:21 ` Arnaud Pouliquen 2020-09-09 20:22 ` Rob Herring 2020-09-09 20:22 ` Rob Herring 2020-09-11 13:49 ` Arnaud POULIQUEN 2020-09-11 13:49 ` Arnaud POULIQUEN 2020-09-23 14:30 ` Arnaud POULIQUEN 2020-09-23 14:30 ` Arnaud POULIQUEN 2020-08-27 7:21 ` Arnaud Pouliquen [this message] 2020-08-27 7:21 ` [PATCH 3/3] ARM: dts: stm32: update stm32mp151 for remote proc synchronisation support Arnaud Pouliquen 2020-09-24 5:45 ` [Linux-stm32] " Ahmad Fatoum 2020-09-24 5:45 ` Ahmad Fatoum 2020-09-24 8:02 ` Arnaud POULIQUEN 2020-09-24 8:02 ` Arnaud POULIQUEN
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