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Wed, 21 Jul 2021 02:48:12 -0500 Received: from DLEE111.ent.ti.com (157.170.170.22) by DLEE103.ent.ti.com (157.170.170.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Wed, 21 Jul 2021 02:48:11 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2 via Frontend Transport; Wed, 21 Jul 2021 02:48:11 -0500 Received: from [10.250.235.117] (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 16L7m7ed011393; Wed, 21 Jul 2021 02:48:08 -0500 Subject: Re: [PATCH 3/6] arm64: dts: ti: k3-j721e: Add support for MCAN nodes To: Marc Kleine-Budde CC: , , , Nishanth Menon , Tero Kristo , Rob Herring , Lokesh Vutla References: <20210720141642.24999-1-a-govindraju@ti.com> <20210720141642.24999-4-a-govindraju@ti.com> <20210720145451.6eby7pbfocyyfi4e@pengutronix.de> From: Aswath Govindraju Message-ID: <41ff222b-e751-1586-b774-4e55bfe5e017@ti.com> Date: Wed, 21 Jul 2021 13:18:06 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20210720145451.6eby7pbfocyyfi4e@pengutronix.de> Content-Language: en-US X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210721_004816_374161_A0997515 X-CRM114-Status: GOOD ( 18.44 ) 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 Hi Marc, On 20/07/21 8:24 pm, Marc Kleine-Budde wrote: > On 20.07.2021 19:46:39, Aswath Govindraju wrote: >> From: Faiz Abbas >> >> Add support for 14 MCAN controllers in main domain and 2 MCAN controllers >> present in mcu domain. All the MCAN controllers support classic CAN >> messages as well as CAN_FD messages. >> >> Signed-off-by: Faiz Abbas >> Signed-off-by: Aswath Govindraju >> --- >> arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 196 ++++++++++++++++++ >> .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi | 28 +++ >> 2 files changed, 224 insertions(+) >> >> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi >> index cf3482376c1e..4215b8e6785a 100644 >> --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi >> +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi >> @@ -1940,4 +1940,200 @@ >> bus_freq = <1000000>; >> }; >> }; >> + >> + main_mcan0: can@2701000 { >> + compatible = "bosch,m_can"; >> + reg = <0x00 0x02701000 0x00 0x200>, >> + <0x00 0x02708000 0x00 0x8000>; >> + reg-names = "m_can", "message_ram"; >> + power-domains = <&k3_pds 156 TI_SCI_PD_EXCLUSIVE>; >> + clocks = <&k3_clks 156 1>, <&k3_clks 156 0>; >> + clock-names = "cclk", "hclk"; >> + interrupts = , >> + ; >> + interrupt-names = "int0", "int1"; >> + bosch,mram-cfg = <0x0 0 0 32 0 0 1 1>; > > Are you intentionally only enabling 1 TX buffer? > I have used this configuration for testing. It can be increased to 32 if required. Is it better to set it to the maximum number of buffers ? Thanks, Aswath > Marc > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel