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CTRY:NL; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:westeu12-emailsignatures-cloud.codetwo.com; PTR:westeu12-emailsignatures-cloud.codetwo.com; CAT:NONE; SFS:(13230040)(82310400026)(376014)(35042699022)(14060799003)(36860700013)(1800799024)(7053199007); DIR:OUT; SFP:1102; X-OriginatorOrg: topic.nl X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Mar 2025 14:48:00.8571 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ad255949-3af2-423f-ebed-08dd630737df X-MS-Exchange-CrossTenant-Id: 449607a5-3517-482d-8d16-41dd868cbda3 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=449607a5-3517-482d-8d16-41dd868cbda3; Ip=[13.93.42.39]; Helo=[westeu12-emailsignatures-cloud.codetwo.com] X-MS-Exchange-CrossTenant-AuthSource: AM3PEPF0000A79C.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU4PR04MB10403 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 12-03-2025 05:05, Abbarapu, Venkatesh wrote: > [AMD Official Use Only - AMD Internal Distribution Only] > > Hi Mike, > Can you try disabling the config SPI_STACKED_PARALLEL. > Is read getting failed? > > Thanks > Venkatesh > >> -----Original Message----- >> From: Mike Looijmans >> Sent: Tuesday, March 11, 2025 3:08 PM >> To: u-boot@lists.denx.de >> Cc: Abbarapu, Venkatesh ; Simek, Michal >> >> Subject: Reading QSPI on zynq7 broken since commit 9bb02f7f4533 >> >> After a bisect session, turned out this causes my topic-miami board to f= ail to boot >> from QSPI: >> >> Commit 9bb02f7f4533: "mtd: spi-nor: Fix the spi_nor_read() when config >> SPI_STACKED_PARALLEL is enabled" >> >> I haven't determined yet what the bug is exactly. The board has a single= QSPI chip >> attached to a 7-series Zynq. SPL fails to read from it since this commit= . >> I spent some time digging into this driver, but only got into a 10-year=20 headache plan... The attempts at getting this specific Frankenstein=20 hardware working has been a cycle of broken driver code and repairs and=20 breaking again ever since its inception in the early zynq 7-series, in=20 both Linux and U-boot. Makes me wonder what possesses the hardware=20 designers to keep using it instead of simply slapping a octa-spi=20 controller on the newer chips. And why the cadence folks thought that=20 2x4=3D16. For the time being I'll just revert the commit before building. If=20 AMD/Xilinx ever come up with a decent fix I'll be happy to test it=20 (though there should be plenty zynq7 boards that only have a single QSPI). --=20 Mike Looijmans System Expert TOPIC Embedded Products B.V. Materiaalweg 4, 5681 RJ Best The Netherlands T: +31 (0) 499 33 69 69 E: mike.looijmans@topic.nl W: www.topic.nl