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Sun, 9 Nov 2025 22:25:12 -0600 Received: from lelvem-mr05.itg.ti.com (10.180.75.9) by DLEE211.ent.ti.com (157.170.170.113) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20 via Frontend Transport; Sun, 9 Nov 2025 22:25:12 -0600 Received: from [172.24.235.200] (a0497641-hp-z2-tower-g9-workstation-desktop-pc.dhcp.ti.com [172.24.235.200]) by lelvem-mr05.itg.ti.com (8.18.1/8.18.1) with ESMTP id 5AA4P9Ee2747976; Sun, 9 Nov 2025 22:25:10 -0600 Message-ID: <2b1b5496-cbd2-4ac4-85cc-2b8da653bbdd@ti.com> Date: Mon, 10 Nov 2025 09:55:08 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 5/7] arm: dts: k3-am69: ddr: Update to v0.12.0 of DDR config tool To: "Scholz, Kevin" , Franz Schnyder CC: , , , , , , , "Franz Schnyder" References: <20251103071035.674604-1-n-francis@ti.com> <20251103071035.674604-6-n-francis@ti.com> Content-Language: en-US From: Neha Malcom Francis In-Reply-To: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF0001AB77:EE_|SA3PR10MB6950:EE_ X-MS-Office365-Filtering-Correlation-Id: 66d910d1-9105-41e2-50da-08de20112490 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:lewvzet200.ext.ti.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230040)(1800799024)(82310400026)(376014)(36860700013); DIR:OUT; SFP:1101; X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Nov 2025 04:25:13.2424 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 66d910d1-9105-41e2-50da-08de20112490 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: BL6PEPF0001AB77.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA3PR10MB6950 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean + Kevin On 07/11/25 21:14, Franz Schnyder wrote: > Hi Neha, > > On Mon, Nov 03, 2025 at 12:40:33PM +0530, Neha Malcom Francis wrote: >> +#define DDRSS0_CTL_178_DATA 0x35000000 >> +#define DDRSS0_CTL_186_DATA 0x00353500 >> +#define DDRSS0_PI_275_DATA 0x00F30084 >> +#define DDRSS0_PI_281_DATA 0x00F30084 >> +#define DDRSS0_PI_287_DATA 0x00F30084 >> +#define DDRSS0_PI_293_DATA 0x00F30084 >> .... >> +#define DDRSS1_CTL_178_DATA 0x35000000 >> +#define DDRSS1_CTL_186_DATA 0x00353500 >> +#define DDRSS1_PI_275_DATA 0x00F30084 >> +#define DDRSS1_PI_281_DATA 0x00F30084 >> +#define DDRSS1_PI_287_DATA 0x00F30084 >> +#define DDRSS1_PI_293_DATA 0x00F30084 >> .... >> +#define DDRSS2_CTL_178_DATA 0x35000000 >> +#define DDRSS2_CTL_186_DATA 0x00353500 >> +#define DDRSS2_PI_275_DATA 0x00F30084 >> +#define DDRSS2_PI_281_DATA 0x00F30084 >> +#define DDRSS2_PI_287_DATA 0x00F30084 >> +#define DDRSS2_PI_293_DATA 0x00F30084 >> .... >> +#define DDRSS3_CTL_178_DATA 0x35350000 >> +#define DDRSS3_CTL_186_DATA 0x00353535 >> +#define DDRSS3_PI_275_DATA 0x35F30084 >> +#define DDRSS3_PI_281_DATA 0x35F30084 >> +#define DDRSS3_PI_287_DATA 0x35F30084 >> +#define DDRSS3_PI_293_DATA 0x35F30084 > > When I compare the updated configuration to the one for our Aquila AM69 > board, I can observe that you have set an on-die termination at boot > frequency only for DRAM3. DRAM, DRAM1 and DRAM2 do not seem to have any > termination enabled. Is this a mistake or is it intentional? Kevin, could you explain the reasoning for this? > > kind regards, > > Franz > -- Thanking You Neha Malcom Francis