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[97.120.251.212]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-742a982b86esm14511036b3a.115.2025.05.24.12.16.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 May 2025 12:16:51 -0700 (PDT) Date: Sat, 24 May 2025 12:16:49 -0700 From: Drew Fustini To: Yao Zi Cc: Rick Chen , Leo , Tom Rini , Wei Fu , Yixun Lan , Maksim Kiselev , Jaehoon Chung , Simon Glass , Heinrich Schuchardt , Ilias Apalodimas , Neha Malcom Francis , Jayesh Choudhary , Wadim Egorov , Vaishnav Achath , Andrew Davis , Chia-Wei Wang , u-boot@lists.denx.de, Han Gao , Han Gao Subject: Re: [PATCH 04/10] ram: thead: Add initial DDR controller support for TH1520 Message-ID: References: <20250426165704.35523-1-ziyao@disroot.org> <20250426165704.35523-5-ziyao@disroot.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250426165704.35523-5-ziyao@disroot.org> X-Mailman-Approved-At: Sat, 24 May 2025 23:59:02 +0200 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 On Sat, Apr 26, 2025 at 04:56:58PM +0000, Yao Zi wrote: > This patch cleans the vendor code of DDR initialization up, converts the > driver to fit in DM framework and use a firmware[1] packaged by binman to > ship PHY configuration. > > Currently the driver is only capable of initializing the controller to > work with dual-rank 3733MHz LPDDR4, which is shipped by 16GiB variants > of LicheePi 4A boards and I could test with. Support for other > configurations could be easily added later. Thank you for this patch series. I only have the 8GB LPi4a. Do you have any suggestions for how I can get that working? Here is existing output at boot: ----------------------------------------------- U-Boot SPL 2020.01-g55b713fa (Jan 12 2024 - 02:17:34 +0000) FM[1] lpddr4x dualrank freq=3733 64bit dbi_off=n sdram init ddr initialized, jump to uboot it worksimage has no header U-Boot 2020.01-g55b713fa (Jan 12 2024 - 02:17:34 +0000) CPU: rv64imafdcvsu Model: T-HEAD c910 light DRAM: 8 GiB ----------------------------------------------- Thanks, Drew