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Thu, 9 Apr 2026 23:30:10 -0500 Received: from [172.24.233.103] (uda0132425.dhcp.ti.com [172.24.233.103]) by lelvem-mr06.itg.ti.com (8.18.1/8.18.1) with ESMTP id 63A4U53q747103; Thu, 9 Apr 2026 23:30:06 -0500 Message-ID: <8673745d-aad2-49d3-b3af-556de7037b69@ti.com> Date: Fri, 10 Apr 2026 10:00:04 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 4/7] arm64: dts: ti: k3-am62a7-sk: Split r5f memory region To: "Markus Schneider-Pargmann (TI)" , Bjorn Andersson , Mathieu Poirier , "Rob Herring" , Krzysztof Kozlowski , "Conor Dooley" , Suman Anna , Nishanth Menon , Tero Kristo CC: Vishal Mahaveer , Kevin Hilman , Dhruva Gole , Sebin Francis , "Kendall Willis" , Akashdeep Kaur , , , , References: <20260318-topic-am62a-ioddr-dt-v6-19-v3-0-c41473cb23c3@baylibre.com> <20260318-topic-am62a-ioddr-dt-v6-19-v3-4-c41473cb23c3@baylibre.com> From: Vignesh Raghavendra Content-Language: en-US In-Reply-To: <20260318-topic-am62a-ioddr-dt-v6-19-v3-4-c41473cb23c3@baylibre.com> Content-Type: text/plain; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: G5asIBmSOY+3KaoXyxvvQYCrumHYayncejpZ33vyU79yhIrB4byzOOli2qBrlswm4sPtfB9R+NUIAEJn+0KtsPRB7tEakmT+l0/GUEQzaN4sYUdV0LDKdzE6q0uECEp96h6isSk7CTYq1IHbRQV+IBK06pkAAJHtdjQEMEaqCF7EqDW6uKVLbRjlhU/TQdUBo3/rpGH4ygf0I7/DMXWvio7ma9L1McpvpdngzZV+R26++uTVQBy80SzyhNkVULov/F1iO0MI7Aj2DLNRBng/RQmTlqxRzbsVTo7No6q3qPpEo96Uox17Z4tI+QpYdQ8Xn0YrTNhkceRHT9OJr1SOM17eRjQxwgONpg2GVKMikPRaaDlCApVs1q1ODpsn5ewZKZEYNwuScbTIxurENo9U2RVQFhnHVOvAzoYE6TszMZviujauRO21AZikYQMUjsCf X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Apr 2026 04:30:11.3829 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a122cf7f-0056-49ac-60da-08de96b9daaf 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: MWH0EPF000A6735.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH5PR10MB997742 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260409_213017_954462_6E379399 X-CRM114-Status: GOOD ( 16.37 ) 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 On 18/03/26 20:43, Markus Schneider-Pargmann (TI) wrote: > Split the firmware memory region in more specific parts so it is better > described where to find which information. Specifically the LPM metadata > region is important as bootloader software like U-Boot has to know where > that data is to be able to read that data. > > Signed-off-by: Markus Schneider-Pargmann (TI) > --- > arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 40 +++++++++++++++++++++++++++++++-- > 1 file changed, 38 insertions(+), 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts > index e99bdbc2e0cbdf858f1631096f9c2a086191bab3..c381cc33064ec427751a9ac5bcdff745a9559a89 100644 > --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts > +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts > @@ -59,9 +59,33 @@ wkup_r5fss0_core0_dma_memory_region: memory@9c800000 { > no-map; > }; > > - wkup_r5fss0_core0_memory_region: memory@9c900000 { > + wkup_r5fss0_core0_ipc_region: memory@9c900000 { There are still references to wkup_r5fss0_core0_memory_region in k3-am62a-ti-ipc-firmware.dtsi (same comment applies to next 2 patches as well) Dont those need to be updated too? > compatible = "shared-dma-pool"; > - reg = <0x00 0x9c900000 0x00 0xf00000>; > + reg = <0x00 0x9c900000 0x00 0x100000>; > + no-map; > + }; > + > + wkup_r5fss0_core0_lpm_fs_stub_region: memory@9ca00000 { > + compatible = "shared-dma-pool"; > + reg = <0x00 0x9ca00000 0x00 0x8000>; > + no-map; > + }; > + > + wkup_r5fss0_core0_lpm_metadata_region: memory@9ca08000 { > + compatible = "shared-dma-pool"; > + reg = <0x00 0x9ca08000 0x00 0x1000>; > + no-map; > + }; > + > + wkup_r5fss0_core0_lpm_rest_region: memory@9ca09000 { > + compatible = "shared-dma-pool"; > + reg = <0x00 0x9ca09000 0x00 0x97000>; > + no-map; > + }; > + > + wkup_r5fss0_core0_dm_region: memory@9caa0000 { > + compatible = "shared-dma-pool"; > + reg = <0x00 0x9caa0000 0x00 0xd60000>; > no-map; > }; > > @@ -922,3 +946,15 @@ &mcu_uart0 { > }; > > #include "k3-am62a-ti-ipc-firmware.dtsi" > + > +&wkup_r5fss0_core0 { > + memory-region = <&wkup_r5fss0_core0_dma_memory_region>, > + <&wkup_r5fss0_core0_ipc_region>, > + <&wkup_r5fss0_core0_lpm_fs_stub_region>, > + <&wkup_r5fss0_core0_lpm_metadata_region>, > + <&wkup_r5fss0_core0_lpm_rest_region>, > + <&wkup_r5fss0_core0_dm_region>; > + memory-region-names = "dma", "ipc", "lpm-stub", > + "lpm-metadata", "lpm-context", > + "dm-firmware"; > +}; > -- Regards Vignesh https://ti.com/opensource