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Wed, 10 Jun 2026 02:39:37 -0500 Received: from [172.24.233.249] (ula0502350.dhcp.ti.com [172.24.233.249]) by lelvem-mr05.itg.ti.com (8.18.1/8.18.1) with ESMTP id 65A7dToR3389577; Wed, 10 Jun 2026 02:39:30 -0500 Message-ID: <3acbd99f-c58e-48b2-89a3-0e77bdbb8427@ti.com> Date: Wed, 10 Jun 2026 13:09:29 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 04/11] arm64: dts: ti: k3-am62p-verdin: Fix wkup R5F memory region size To: Markus Schneider-Pargmann , Nishanth Menon , Vignesh Raghavendra , Tero Kristo , "Rob Herring" , Krzysztof Kozlowski , "Conor Dooley" , Nathan Chancellor , "Nick Desaulniers" , Bill Wendling , Justin Stitt , Judith Mendez , Daniel Schultz , Andrew Davis , Siddharth Vadapalli , Bryan Brattlof , "Jai Luthra" , Devarsh Thakkar , Beleswar Padhi , Francesco Dolcini , Stefano Radaelli CC: Vishal Mahaveer , Kevin Hilman , Sebin Francis , Kendall Willis , Akashdeep Kaur , , , , , Hari Nagalla References: <20260609-topic-am62a-ioddr-dt-v6-19-v6-0-16afba97fbe0@baylibre.com> <20260609-topic-am62a-ioddr-dt-v6-19-v6-4-16afba97fbe0@baylibre.com> Content-Language: en-US From: Paresh Bhagat In-Reply-To: Content-Type: text/plain; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: jcURR8DrkW/esunIrACY6PVSEpvA0Lwqq9M7oluQBkHjC/8i+8D6EDrx17KYMF0sDeozU6HrfVrnyMmvFHEgg0CZFQ8iT08bRe2QX1VZJLKrZoXT5pZEifxmG2tbqckbo2b7ix3+hOZpeINUz4AyhzQ6zRqwnPTS8bH2p/fsyzGn9buPjd2vhxc6d1qnqIN8BC9lx7cIYj48SZL1j/DK74PK2/jmDQH3PUb9qA2MxJnMxgTYH3+SgAjG1ROi3Ll1vf9t5DsOo20GI+klSg737WEdrHT55FVuCRk2P8xNRq1Nrc6Wk3AxlHU8SuEIBJeiJFptSEYAHm94KHa3kZtBlBNG/kfYS1onrMv/SeSpH0nCzayuLwDCi6uG+f/eeVuC9Df5VUuZzFXs+S0tk9YxX7JnfLji4kBPzVVOyhY3ZIO9laReDLbQr7N75K0yQ9qm X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Jun 2026 07:39:38.4718 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 95809cf9-b8e5-4fba-8d02-08dec6c36d2d X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.23.194];Helo=[lewvzet200.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: MN1PEPF0000F0E2.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PR10MB6698 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260610_003946_215379_2FBF0490 X-CRM114-Status: GOOD ( 17.64 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Markus, Thanks for the patch On 10/06/26 12:41, Markus Schneider-Pargmann wrote: > Hi, > > On Tue Jun 9, 2026 at 8:56 PM CEST, Markus Schneider-Pargmann (TI) wrote: >> The wkup_r5fss0_core0_memory_region was reserved with only >> 0x0f00000 but the MCU SDK linker for the wkup R5F firmware on > This and the var-som patch incorrectly mention the reserved size to be > 0x0f00000 in the commit message while it should say 0x01e00000. I will > fix the commit message with the next version. > > Best > Markus > >> AM62P defines the DM code/data DDR footprint differently: >> >> /* DDR for DM R5F code/data [ size 27 MiB + 396 KB ] */ >> DDR : ORIGIN = 0x9CAA5000 LENGTH = 0x1B63000 >> >> which results in an end at 0x9e608000. For this memory region which >> starts at 0x9c900000 this means a length of: >> >> 0x9e608000 - 0x9c900000 = 0x1d08000 >> >> Link: https://github.com/TexasInstruments/mcupsdk-core-k3/blob/k3_main/examples/drivers/ipc/ipc_rpmsg_echo_linux/am62px-sk/wkup-r5fss0-0_freertos/ti-arm-clang/linker.cmd >> Fixes: 87f95ea316ac ("arm64: dts: ti: Add Toradex Verdin AM62P") >> Signed-off-by: Markus Schneider-Pargmann (TI) I was investigating a similar issue on AM62D and implemented a slightly different solution based on internal discussions (although still under review) https://lore.kernel.org/all/20260609181006.460401-1-p-bhagat@ti.com/ Would be great to get your feedback on this. Thanks Paresh >> --- >> arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi >> index 7ee894d59113aa727d41b7ecd6b2bc7e12760823..8a5ff5c457579c7b1be7157d235fd4b4e5c6af11 100644 >> --- a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi >> +++ b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi >> @@ -170,7 +170,7 @@ wkup_r5fss0_core0_dma_memory_region: memory@9c800000 { >> >> wkup_r5fss0_core0_memory_region: memory@9c900000 { >> compatible = "shared-dma-pool"; >> - reg = <0x00 0x9c900000 0x00 0x01e00000>; >> + reg = <0x00 0x9c900000 0x00 0x01d08000>; >> no-map; >> }; >> };