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Thu, 3 Sep 2026 09:52:44 -0500 Received: from lelvem-mr06.itg.ti.com (10.180.75.8) by DFLE206.ent.ti.com (10.64.6.64) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.45 via Frontend Transport; Thu, 3 Sep 2026 09:52:44 -0500 Received: from [10.249.36.221] ([10.249.36.221]) by lelvem-mr06.itg.ti.com (8.18.1/8.18.1) with ESMTP id 683EqgQ91728207; Thu, 3 Sep 2026 09:52:43 -0500 Message-ID: <5a2f3d99-15fa-4360-8c65-4bc44d583d40@ti.com> Date: Thu, 3 Sep 2026 09:52:42 -0500 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 1/9] arm64: dts: ti: k3-am62a-phycore-som: Fix wkup R5F memory region size To: "Markus Schneider-Pargmann (TI)" , Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Nathan Chancellor , Nick Desaulniers , "Bill Wendling" , Justin Stitt , "Judith Mendez" , Daniel Schultz , Siddharth Vadapalli , Paresh Bhagat , Bryan Brattlof , Jai Luthra , Devarsh Thakkar , Beleswar Padhi , Francesco Dolcini , Stefano Radaelli , Nick Desaulniers CC: Vishal Mahaveer , Kevin Hilman , Sebin Francis , Kendall Willis , Akashdeep Kaur , , , , , Hari Nagalla References: <20260903-topic-am62a-ioddr-dt-v6-19-v8-0-74c650dfdea6@baylibre.com> <20260903-topic-am62a-ioddr-dt-v6-19-v8-1-74c650dfdea6@baylibre.com> Content-Language: en-US From: Andrew Davis In-Reply-To: <20260903-topic-am62a-ioddr-dt-v6-19-v8-1-74c650dfdea6@baylibre.com> Content-Type: text/plain; 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For this memory region which > starts at 0x9c900000 this means a length of: > > 0x9e600000 - 0x9c900000 = 0x1d00000 > > AM62A additionally has a second DM firmware for edgeai whose highest > section end address reaches 0x9e700000, so the region should end there: > > 0x9e700000 - 0x9c900000 = 0x1e00000 > > Link: https://github.com/TexasInstruments/mcupsdk-core-k3/blob/k3_main/examples/drivers/ipc/ipc_rpmsg_echo_linux/am62ax-sk/r5fss0-0_freertos/ti-arm-clang/linker.cmd Ugh, I really wish the MCU-SDK folks would have stayed within the usual 16MB boundary.. Oh well, since there is firmware out there now with this larger size our carveouts will just have to match that, Acked-by: Andrew Davis > Fixes: 8dd0ac27fcd1 ("arm64: dts: ti: k3-am62a-phycore-som: Enable Co-processors") > Signed-off-by: Markus Schneider-Pargmann (TI) > --- > arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi > index de4048a3564b..53c096da68b5 100644 > --- a/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi > +++ b/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi > @@ -67,7 +67,7 @@ wkup_r5fss0_core0_dma_memory_region: memory@9c800000 { > > wkup_r5fss0_core0_memory_region: memory@9c900000 { > compatible = "shared-dma-pool"; > - reg = <0x00 0x9c900000 0x00 0xf00000>; > + reg = <0x00 0x9c900000 0x00 0x1e00000>; > no-map; > }; > >