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Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [RFC PATCH 6/7] ARM: dts: stm32: add ETZPC as a system bus for STM32MP15x boards Content-Language: en-US To: Gatien Chevallier , alexandre.torgue@foss.st.com, robh+dt@kernel.org, Oleksii_Moisieiev@epam.com, linus.walleij@linaro.org, gregkh@linuxfoundation.org Cc: linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, loic.pallardy@st.com, devicetree@vger.kernel.org, mark.rutland@arm.com, arnd@arndb.de References: <20221221173055.11719-1-gatien.chevallier@foss.st.com> <20221221173055.11719-7-gatien.chevallier@foss.st.com> From: Krzysztof Kozlowski In-Reply-To: <20221221173055.11719-7-gatien.chevallier@foss.st.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221222_023030_283586_4BA9EEC0 X-CRM114-Status: GOOD ( 15.21 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 21/12/2022 18:30, Gatien Chevallier wrote: > The STM32 System Bus is an internal bus on which devices are connected. > ETZPC is a peripheral overseeing the firewall bus that configures > and control access to the peripherals connected on it. > > For more information on which peripheral is securable, please read > the STM32MP15 reference manual. > > Signed-off-by: Gatien Chevallier > --- > arch/arm/boot/dts/stm32mp151.dtsi | 2737 +++++++++++++++-------------- > 1 file changed, 1406 insertions(+), 1331 deletions(-) > > - lptimer1: timer@40009000 { > + etzpc: etzpc@5c007000 { Node names should be generic. https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation > + compatible = "st,stm32mp15-sys-bus"; > + reg = <0x5c007000 0x400>; > #address-cells = <1>; > - #size-cells = <0>; > - compatible = "st,stm32-lptimer"; > - reg = <0x40009000 0x400>; > - interrupts-extended = <&exti 47 IRQ_TYPE_LEVEL_HIGH>; > - clocks = <&rcc LPTIM1_K>; > - clock-names = "mux"; > - wakeup-source; > - status = "disabled"; Why entire bus is disabled? What resources do you miss? > + #size-cells = <1>; > + feature-domain-controller; > + #feature-domain-cells = <2>; > + ranges; > Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel