Hi Angelo & Wolfgang,
I can erase perfectly but can read perfectly.
One thing is that I can write some data in debug mode and without debug mode I
cant write any bytes in flash.
You can see as follows:
-> md 0x40000
00040000: ffffffff ffffffff ffffffff ffffffff ................
00040010: ffffffff ffffffff ffffffff ffffffff ................
00040020: ffff6861 63743d46 45433000 65746861 ..hact=FEC0.etha
00040030: 6464723d 30303a65 303a3063 3a62633a ddr=00:e0:0c:bc:
00040040: 65353a36 30006761 74657761 7969703d e5:60.gatewayip=
00040050: 3139322e 3136322e 312e3100 686f7374 192.162.1.1.host
00040060: 6e616d65 3d4d3533 32394556 42006970 name=M5329EVB.ip
00040070: 61646472 3d313932 2e313632 2e312e32 addr=192.162.1.2
00040080: 006c6f61 643d7466 74702024 7b6c6f61 .load=tftp ${loa
00040090: 64616464 72292024 7b752d62 6f6f747d daddr) ${u-boot}
000400a0: 006c6f61 64616464 723d3430 30313030 .loadaddr=400100
000400b0: 3030006d 656d3d33 32323536 6b006e65 00.mem=32256k.ne
000400c0: 74646576 3d657468 30006e65 746d6173 tdev=eth0.netmas
000400d0: 6b3d3235 352e3235 352e3235 352e3000 k=255.255.255.0.
000400e0: 70726f67 3d70726f 74206f66 66203020 prog=prot off 0
000400f0: 33666666 663b6572 61203020 33666666 3ffff;era 0 3fff
-> erase 0x40000 0x5ffff
- Warning: 1 protected sectors will not be erased!
done
Erased 1 sectors
-> protect off all
Un-Protect Flash Bank # 1
................................................................................................................................
done
-> erase 0x40000 0x5ffff
. done
Erased 1 sectors
-> md 0x40000
00040000: ffffffff ffffffff ffffffff ffffffff ................
00040010: ffffffff ffffffff ffffffff ffffffff ................
00040020: ffffffff ffffffff ffffffff ffffffff ................
00040030: ffffffff ffffffff ffffffff ffffffff ................
00040040: ffffffff ffffffff ffffffff ffffffff ................
00040050: ffffffff ffffffff ffffffff ffffffff ................
00040060: ffffffff ffffffff ffffffff ffffffff ................
00040070: ffffffff ffffffff ffffffff ffffffff ................
00040080: ffffffff ffffffff ffffffff ffffffff ................
00040090: ffffffff ffffffff ffffffff ffffffff ................
000400a0: ffffffff ffffffff ffffffff ffffffff ................
000400b0: ffffffff ffffffff ffffffff ffffffff ................
000400c0: ffffffff ffffffff ffffffff ffffffff ................
000400d0: ffffffff ffffffff ffffffff ffffffff ................
000400e0: ffffffff ffffffff ffffffff ffffffff ................
000400f0: ffffffff ffffffff ffffffff ffffffff ................
(My comment: Without debug cant write.)
-> save
Saving Environment to Flash...
. done
Un-Protected 1 sectors
Erasing Flash...!
. done
Erased 1 sectors
Writing to Flash...! done
. done
Protected 1 sectors
-> md 0x40000
00040000: ffffffff ffffffff ffffffff ffffffff ................
00040010: ffffffff ffffffff ffffffff ffffffff ................
00040020: ffffffff ffffffff ffffffff ffffffff ................
00040030: ffffffff ffffffff ffffffff ffffffff ................
00040040: ffffffff ffffffff ffffffff ffffffff ................
00040050: ffffffff ffffffff ffffffff ffffffff ................
00040060: ffffffff ffffffff ffffffff ffffffff ................
00040070: ffffffff ffffffff ffffffff ffffffff ................
00040080: ffffffff ffffffff ffffffff ffffffff ................
00040090: ffffffff ffffffff ffffffff ffffffff ................
000400a0: ffffffff ffffffff ffffffff ffffffff ................
000400b0: ffffffff ffffffff ffffffff ffffffff ................
000400c0: ffffffff ffffffff ffffffff ffffffff ................
000400d0: ffffffff ffffffff ffffffff ffffffff ................
000400e0: ffffffff ffffffff ffffffff ffffffff ................
000400f0: ffffffff ffffffff ffffffff ffffffff ................
(With debug I can write but first after 36 bytes.)
-> printenv
EXPORT table = 41f7b0b4, htab.size = 107, htab.filled = 19, size = 0
Unsorted: n=19
0: 41f181d4 ==> gatewayip => 192.162.1.1
1: 41f181e0 ==> stdout => serial
2: 41f182d0 ==> stderr => serial
3: 41f1830c ==> ipaddr => 192.162.1.2
4: 41f1836c ==> ethaddr => 00:e0:0c:bc:e5:60
5: 41f1839c ==> stdin => serial
6: 41f183cc ==> prog => prot off 0 3ffff;era 0 3ffff;cp.b
${loadaddr} 0 ${filesize};save
7: 41f18414 ==> bootdelay => 5
8: 41f18480 ==> baudrate => 115200
9: 41f184a4 ==> hostname => M5329EVB
10: 41f184b0 ==> load => tftp ${loadaddr) ${u-boot}
11: 41f184e0 ==> serverip => 192.162.1.1
12: 41f184ec ==> loadaddr => 40010000
13: 41f1851c ==> mem => 32256k
14: 41f1854c ==> netdev => eth0
15: 41f18564 ==> u-boot => u-boot.bin
16: 41f185b8 ==> ethact => FEC0
17: 41f1860c ==> upd => run load; run prog
18: 41f18654 ==> netmask => 255.255.255.0
baudrate=115200
bootdelay=5
ethact=FEC0
ethaddr=00:e0:0c:bc:e5:60
gatewayip=192.162.1.1
hostname=M5329EVB
ipaddr=192.162.1.2
load=tftp ${loadaddr) ${u-boot}
loadaddr=40010000
mem=32256k
netdev=eth0
netmask=255.255.255.0
prog=prot off 0 3ffff;era 0 3ffff;cp.b ${loadaddr} 0 ${filesize};save
serverip=192.162.1.1
stderr=serial
stdin=serial
stdout=serial
u-boot=u-boot.bin
upd=run load; run prog
Environment size: 432/8188 bytes
-> md 40000
00040000: ffffffff ffffffff ffffffff ffffffff ................
00040010: ffffffff ffffffff ffffffff ffffffff ................
00040020: ffffffff 63743d46 45433000 65746861 ....ct=FEC0.etha
00040030: 6464723d 30303a65 303a3063 3a62633a ddr=00:e0:0c:bc:
00040040: 65353a36 30006761 74657761 7969703d e5:60.gatewayip=
00040050: 3139322e 3136322e 312e3100 686f7374 192.162.1.1.host
00040060: 6e616d65 3d4d3533 32394556 42006970 name=M5329EVB.ip
00040070: 61646472 3d313932 2e313638 2e312e32 addr=192.168.1.2
00040080: 006c6f61 643d7466 74702024 7b6c6f61 .load=tftp ${loa
00040090: 64616464 72292024 7b752d62 6f6f747d daddr) ${u-boot}
000400a0: 006c6f61 64616464 723d3430 30313030 .loadaddr=400100
000400b0: 3030006d 656d3d33 32323536 6b006e65 00.mem=32256k.ne
000400c0: 74646576 3d657468 30006e65 746d6173 tdev=eth0.netmas
000400d0: 6b3d3235 352e3235 352e3235 352e3000 k=255.255.255.0.
000400e0: 70726f67 3d70726f 74206f66 66203020 prog=prot off 0
000400f0: 33666666 663b6572 61203020 33666666 3ffff;era 0 3fff
Why this happening I don't know.
Second things is like in flash_get_size() function it become portwidth = 1
because of our M29W128GL has interface code = 2 (X8X16).
Please help me.
Thanks a lot.
-----Original Message-----
From: Angelo Dureghello [mailto:sysa...@gmail.com]
Sent: Sunday, January 20, 2013 7:59 PM
To: u-boot@lists.denx.de
Cc: Ramesh K Khokhani
Subject: Re: [U-Boot] Flash Not Erased Problem with M29W128GL
Dear Ramesh,
i am using last u-boot form git / master.
You can get the file fome there, just go to u-boot site,
custodians, click "master", selct tree and click on the file.
Still, some questions:
How is the flash connected, as 8 or 16 bit data port ? Is the
flash connected stirght D0/D15 to D0/D15 of the cpu ?
Did you try to add the TIMEOUT config field, as i posted ?
Can you try to use the command "erase" and dump to see if
the flash can get erased ?
Regards,
Angelo
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