Hi Robert, On Fri, 22 Dec 2017 21:11:32 +0100 Robert Jarzmik <robert.jarzmik@xxxxxxx> wrote: > Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx> writes: > > > Looks like there is a mismatch on the nand bus width detected by the > > core and the one declared by the driver. Can you try with the following > > diff applied? > > Sure. > > Now I get a lot of these message which I didn't have before : > [ 26.897372] ubi0 warning: ubi_io_read: error -74 (ECC error) while reading 126976 bytes from PEB 242:4096, read only 126976 bytes, retry > [ 26.928559] ubi0 warning: ubi_io_read: error -74 (ECC error) while reading 126976 bytes from PEB 242:4096, read only 126976 bytes, retry > [ 26.959623] ubi0 warning: ubi_io_read: error -74 (ECC error) while reading 126976 bytes from PEB 242:4096, read only 126976 bytes, retry > [ 26.990714] ubi0 error: ubi_io_read: error -74 (ECC error) while reading 126976 bytes from PEB 242:4096, read 126976 bytes > [ 27.002084] CPU: 0 PID: 1 Comm: swapper Not tainted 4.15.0-rc1-00041-ge371e97 #737 > [ 27.009674] Hardware name: PXA3xx Platform Development Kit (aka Zylonite) > [ 27.016750] [<c0010440>] (unwind_backtrace) from [<c000df94>] (show_stack+0x10/0x14) > [ 27.024729] [<c000df94>] (show_stack) from [<c02c5bd4>] (ubi_io_read+0x124/0x368) > [ 27.032453] [<c02c5bd4>] (ubi_io_read) from [<c02cd550>] (ubi_attach+0xbd8/0x1868) > [ 27.040148] [<c02cd550>] (ubi_attach) from [<c02be7c4>] (ubi_attach_mtd_dev+0x548/0xe58) > [ 27.048473] [<c02be7c4>] (ubi_attach_mtd_dev) from [<c05526e4>] (ubi_init+0x134/0x1d4) > [ 27.056623] [<c05526e4>] (ubi_init) from [<c00099f8>] (do_one_initcall+0x3c/0x17c) > [ 27.064466] [<c00099f8>] (do_one_initcall) from [<c053fd80>] (kernel_init_freeable+0x104/0x1c0) > [ 27.073398] [<c053fd80>] (kernel_init_freeable) from [<c0423ab8>] (kernel_init+0x8/0xf8) > [ 27.081715] [<c0423ab8>] (kernel_init) from [<c000a780>] (ret_from_fork+0x14/0x34) > [ 27.090115] ubi0 warning: ubi_io_read: error -74 (ECC error) while reading 64 bytes from PEB 243:2048, read only 64 bytes, retry > [ 27.102363] ubi0 warning: ubi_io_read: error -74 (ECC error) while reading 64 bytes from PEB 243:2048, read only 64 bytes, retry > [ 27.114586] ubi0 warning: ubi_io_read: error -74 (ECC error) while reading 64 bytes from PEB 243:2048, read only 64 bytes, retry > [ 27.126813] ubi0 error: ubi_io_read: error -74 (ECC error) while reading 64 bytes from PEB 243:2048, read 64 bytes > [ 27.137416] CPU: 0 PID: 1 Comm: swapper Not tainted 4.15.0-rc1-00041-ge371e97 #737 > [ 27.145143] Hardware name: PXA3xx Platform Development Kit (aka Zylonite) > [ 27.152207] [<c0010440>] (unwind_backtrace) from [<c000df94>] (show_stack+0x10/0x14) > [ 27.160037] [<c000df94>] (show_stack) from [<c02c5bd4>] (ubi_io_read+0x124/0x368) > [ 27.167742] [<c02c5bd4>] (ubi_io_read) from [<c02c63dc>] (ubi_io_read_vid_hdr+0x60/0x3ac) > [ 27.176156] [<c02c63dc>] (ubi_io_read_vid_hdr) from [<c02cce58>] (ubi_attach+0x4e0/0x1868) > [ 27.184675] [<c02cce58>] (ubi_attach) from [<c02be7c4>] (ubi_attach_mtd_dev+0x548/0xe58) > [ 27.193010] [<c02be7c4>] (ubi_attach_mtd_dev) from [<c05526e4>] (ubi_init+0x134/0x1d4) > [ 27.201159] [<c05526e4>] (ubi_init) from [<c00099f8>] (do_one_initcall+0x3c/0x17c) > [ 27.208839] [<c00099f8>] (do_one_initcall) from [<c053fd80>] (kernel_init_freeable+0x104/0x1c0) > [ 27.217755] [<c053fd80>] (kernel_init_freeable) from [<c0423ab8>] (kernel_init+0x8/0xf8) > [ 27.226074] [<c0423ab8>] (kernel_init) from [<c000a780>] (ret_from_fork+0x14/0x34) Looks like a mismatch in the ECC config. Can you check the ecc strength/step_size in both situation (old driver vs new driver)? Could you also dump the NDCR register in both cases? Thanks, Boris -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
