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Mon, 24 Jul 2023 11:06:24 -0500 Received: from [128.247.81.105] (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 36OG6O5s067251; Mon, 24 Jul 2023 11:06:24 -0500 Message-ID: <42044653-cc22-131a-bf1b-e68ddfa0ff9d@ti.com> Date: Mon, 24 Jul 2023 11:06:24 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Subject: Re: [PATCH v1 1/2] arm64: dts: ti: k3-am62: Add MCU MCAN nodes To: Francesco Dolcini , Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley CC: , , , Francesco Dolcini References: <20230724133612.37366-1-francesco@dolcini.it> <20230724133612.37366-2-francesco@dolcini.it> Content-Language: en-US From: Judith Mendez In-Reply-To: <20230724133612.37366-2-francesco@dolcini.it> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Francesco, On 7/24/23 8:36 AM, Francesco Dolcini wrote: > From: Judith Mendez > > On AM62x there are no hardware interrupts routed to A53 GIC > interrupt controller for MCU MCAN IPs, so MCU MCAN nodes were > omitted from MCU dtsi. > > Timer polling was introduced in commits [1][2] so now add MCU MCAN nodes > to the MCU dtsi for the Cortex A53. > > [1] b382380c0d2d ("can: m_can: Add hrtimer to generate software interrupt") > [2] bb410c03b999 ("dt-bindings: net: can: Remove interrupt properties for MCAN") > > Signed-off-by: Judith Mendez > [fd: fixed labels to match datasheet numbering, revised commit message, > fixed reg/reg-names order] > Signed-off-by: Francesco Dolcini > --- > arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > > diff --git a/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi > index 19fc38157d94..fed50666d95b 100644 > --- a/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi > +++ b/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi > @@ -147,4 +147,28 @@ mcu_rti0: watchdog@4880000 { > /* Tightly coupled to M4F */ > status = "reserved"; > }; > + > + mcu_mcan0: can@4e00000 { > + compatible = "bosch,m_can"; > + reg = <0x00 0x4e08000 0x00 0x200>, > + <0x00 0x4e00000 0x00 0x8000>; > + reg-names = "m_can", "message_ram"; > + power-domains = <&k3_pds 188 TI_SCI_PD_EXCLUSIVE>; > + clocks = <&k3_clks 188 6>, <&k3_clks 188 1>; > + clock-names = "hclk", "cclk"; > + bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>; > + status = "disabled"; > + }; > + > + mcu_mcan1: can@4e10000 { > + compatible = "bosch,m_can"; > + reg = <0x00 0x4e18000 0x00 0x200>, > + <0x00 0x4e10000 0x00 0x8000>; > + reg-names = "m_can", "message_ram"; > + power-domains = <&k3_pds 189 TI_SCI_PD_EXCLUSIVE>; > + clocks = <&k3_clks 189 6>, <&k3_clks 189 1>; > + clock-names = "hclk", "cclk"; > + bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>; > + status = "disabled"; > + }; > }; Thanks for sending this patch, will also send for AM62ax. ~ Judith