On 20 July 2015 at 16:49, Robert Jarzmik <robert.jarz...@free.fr> wrote: > Ezequiel Garcia <ezequ...@vanguardiasur.com.ar> writes: > >> Here you go: >> >> http://git.infradead.org/users/ezequielg/linux/shortlog/refs/heads/pxa3xx-nand-timing-rework-v2 > > Okay, I've tested this on cm-x300. The result is not bright : > nand: device found, Manufacturer ID: 0xec, Chip ID: 0xdc > nand: Samsung NAND 512MiB 3,3V 8-bit > nand: 512 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64 > pxa3xx-nand pxa3xx-nand: ECC strength 1, ECC step size 512 > Scanning device for bad blocks > random: nonblocking pool is initialized > Bad eraseblock 1037 at 0x0000081a0000 > Creating 6 MTD partitions on "pxa3xx_nand-0": > 0x000000000000-0x000000040000 : "OBM" > 0x000000040000-0x000000080000 : "U-Boot" > 0x000000080000-0x0000000c0000 : "Environment" > 0x0000000c0000-0x000000200000 : "reserved" > 0x000000200000-0x000000600000 : "kernel" > 0x000000600000-0x000020000000 : "fs" > > The bad black is not bad normally. > And then : > # dd if=/dev/mtd0 of=toto count=1 > pxa3xx-nand pxa3xx-nand: Wait time out!!! > 1+0 records in > 1+0 records out > # ls -l toto > -rw-r--r-- 1 root root 512 Jan 1 00:02 toto > # hexdump-C toto > 00000000 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff > |................| > * > 00000200 > > That's not possible, as it should have dumped the OBMI. > > And yet, I hesitate to incriminate this patchset, I will try without it. It > wont > be very fast, as my USB to serial converter just broke, and my order will > take a > couple of days to complete. >
Just tested linux-next (hence *without* the patchset) and I see the same "Wait time out". In other words, pxa3xx-nand is broken on PXA :/ Interestingly, the culprit doesn't seem to be in pxa3xx-nand itself. Reverting the recent commits on pxa3xx-nand doesn't help. ce914e6 mtd: nand: pxa3xx: fix build on ARM64 afca11e mtd: nand: pxa3xx: Switch FIFO draining to jiffies-based timeout e5860c1 mtd: pxa3xx_nand: cleanup wait_for_completion handling 7c2f717 mtd: pxa3xx_nand: initialiaze pxa3xx_flash_ids to 0 ed446cc Merge MTD updates into -next e423c90 mtd: pxa3xx_nand: fix driver when num_cs is 0 2454225 mtd: pxa3xx-nand: handle PIO in threaded interrupt 8dad038 mtd: nand: pxa3xx: Fix PIO FIFO draining b7e46062 mtd: pxa3xx_nand: make the driver work on big-endian systems 5b3e507 mtd: nand: pxa3xx: Use ECC strength and step size devicetree binding eee0166 mtd: nand: pxa3xx: Clean pxa_ecc_init() error handling 17754ad mtd: nand: pxa3xx: Make of_device_id array const e634ce5 mtd: nand: pxa3xx: Print actual ECC strength in error message Yet v3.18 succeeds to pass a few NAND blocks on nandtest. Robert: any ideas? -- Ezequiel García, VanguardiaSur www.vanguardiasur.com.ar -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
