[PATCH v2 2/6] mtd: spi-nor: add erase die (chip) capability

[Fabio Estevam]

On 02/11/2023 14:59, Tudor Ambarus wrote:
> On 11/2/23 17:54, Tudor Ambarus wrote:
>> Does this help?
>> 
> 
> I guess not, because you used the full flash erase in the first place,
> but still a bug. Ok, I'll add some prints.

Yes, it did not help:

root at mcde3000a:~# time flash_erase /dev/mtd0 0 0
Erasing 131072 Kibyte @ 0 --  0 [   27.693305] ****** n_dice: 2
% complete [   27.699053] ****** die_size: 67108864
[   27.703650] ****** multi_die_erase: 1
[   27.707342] ****** addr: 0
[   27.710070] ****** len: 134217728
[   27.713406] **** Logic addr & (die_size - 1): 0
[   27.718017] **************** spi_nor_erase_dice 1
[   27.722793] spi-nor spi0.0:  **** Die size is 65536KiB
[   27.727964] spi-nor spi0.0: ***** nor->params->die_erase_opcode: 0xc4
[   27.734430] spi-nor spi0.0: ***** nor->addr_nbytes: 4
[   27.739498] spi-nor spi0.0: ***** addr 0x0
[   27.743614] spi-nor spi0.0: ***** multi_die: 1
[   27.748094] spi-nor spi0.0: ***** SR before erase: 0x2
[   27.753278] spi-nor spi0.0: ***** SR after erase: 0x2
[   27.758387] spi-nor spi0.0:  **** Die size is 65536KiB
[   27.763559] spi-nor spi0.0: ***** nor->params->die_erase_opcode: 0xc4
[   27.770017] spi-nor spi0.0: ***** nor->addr_nbytes: 4
[   27.775085] spi-nor spi0.0: ***** addr 0x4000000
[   27.779724] spi-nor spi0.0: ***** multi_die: 1
[   27.784249] spi-nor spi0.0: ***** SR before erase: 0x2
[   27.789496] spi-nor spi0.0: ***** SR after erase: 0x2
Erasing 131072 Kibyte @ 0 -- 100 % complete

real	0m0.110s
user	0m0.001s
sys	0m0.107s
root at mcde3000a:~# hexdump /dev/mtd0
0000000 a1d4 168c 4dad dfb2 2a3d c2af 0aae c18a
0000010 2d5f 177a c39f 46a4 f9cd b880 331e 2543
0000020 dd47 8981 1eaa aab4 9626 336c 4f74 2b22
....