Hi Miquel,
On 6/3/2026 2:12 PM, Michal Simek wrote:
> Hi Love,
>
> On 6/2/26 12:28, Miquel Raynal (DAVE.eu) wrote:
>> This driver is deeply broken in many ways. I've tried to clean it up by:
>> - flagging the most hideous parts (where Micron on-die ECC support is
>> hardcoded)
>> - enabling DT support, eg. for reading the ECC configuration
>> - fixing software ECC support
>> - aligning the software ECC OOB layout to the rest of the world and
>> allow a working interoperability in Linux.
>>
>> Signed-off-by: Miquel Raynal (DAVE.eu) <[email protected]>
>> ---
>> Changes in v2:
>> - Fix the sponsor: s/DAVE/DAVE.eu/, no other change.
>> - Link to v1:
>> https://lore.kernel.org/r/[email protected]
>>
>> ---
>> Miquel Raynal (DAVE.eu) (5):
>> mtd: rawnand: zynq: Align the layout structures with the driver
>> namespace
>> mtd: rawnand: zynq: Add comments about very bad practices
>> mtd: rawnand: zynq: Make sure an of node is attached
>> mtd: rawnand: zynq: Do not fail the probe for no reason
>> mtd: rawnand: zynq: Fix Software ECC engine support
>>
>> drivers/mtd/nand/raw/zynq_nand.c | 115
>> ++++++++++-----------------------------
>> 1 file changed, 28 insertions(+), 87 deletions(-)
>> ---
>> base-commit: 744cf5d4e398c5f657e5c3eeb44d00fa5175dc85
>> change-id: 20260522-dave-upstream-nand-fixes-60a5336517a2
>>
>> Best regards,
>
> can you please test this and provide results?
>
> Thanks,
> Michal
We are seeing issue with zynq-zc770-xm011 board with NAND write.
Below is the log snippet:
"""
U-Boot 2026.07-rc4-00024-gbc44b6a0aeb0 (Jun 10 2026 - 20:00:05 +0530)
CPU: Zynq 7z020
Silicon: v3.1
Model: Xilinx ZC770 XM011 board
DRAM: ECC disabled 1 GiB
Core: 20 devices, 15 uclasses, devicetree: board
Flash: 0 Bytes
NAND: 128 MiB
MMC:
Loading Environment from nowhere... OK
In: serial@e0001000
Out: serial@e0001000
Err: serial@e0001000
Net: No ethernet found.
U-Boot 2026.07-rc4-00024-gbc44b6a0aeb0 (Jun 10 2026 - 20:00:05 +0530)CPU:
Zynq 7z020Silicon: v3.1Model: Xilinx ZC770 XM011 boardDRAM: ECC disabled 1
GiBCore: 20 devices, 15 uclasses, devicetree: boardFlash: 0 BytesNAND: 128
MiBMMC: Loading Environment from nowhere... OKIn: serial@e0001000Out:
serial@e0001000Err: serial@e0001000Net: No ethernet found.
Hit any key to stop autoboot: 2
Hit any key to stop autoboot: 0
Zynq> nand info
nand info
Device 0: nand0, sector size 128 KiB
Page size 2048 b
OOB size 64 b
Erase size 131072 b
ecc strength 0 bits
ecc step size 2048 b
subpagesize 2048 b
options 0x00000000
Device 0: nand0, sector size 128 KiB Page size 2048 b OOB size
64 b Erase size 131072 b ecc strength 0 bits ecc step size
2048 b subpagesize 2048 b options 0x00000000 bbt options
0x00028000
Zynq> nand erase.spread 0 0x2000000
NAND erase.spread: device 0 offset 0x0, size 0x2000000
Erasing at 0x1fa0000 -- 99% complete.
Erasing at 0x1fe0000 -- 100% complete.
OK
Zynq> nand write 0x80000 0 0x2000000
NAND write: device 0 offset 0x0, size 0x2000000
NAND write to offset 0 failed -5
"""
Please have a look.
Thanks,
Love Kumar
