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[NOTE: I'm not kernel developer ]
Hi Recently we changed from Micron(pc28f256p33bfe i suppose) to Spansion S29GL256S10TF102 and nothing else is changed.
And as i'm not much aware of kernel/Driver part so i don't know what could be this.
Some details provided below incase you guys can help
FAILURE LOGS :
NetRefDAC calibration: 0xff,0xff, 0xffff
md5sum in eeprom (115429abe4d090c834c58f11555026c7) is incorrect
Unable to verify eeprom, setting model to 'ZFS'
Reading PCB info again
NetRefDAC calibration: 0xff,0xff, 0xffff
md5sum in eeprom (115429abe4d090c834c58f11555026c7) is incorrect
Unable to verify eeprom, setting model to 'ZFS'
Last[0] is ffff
Last[1] is ffff
Last[2] is ffff
Last[2] is ffff, datum is 2705
Q. [What exactly is datum ?]
Some more information:
we're running old ppc board:
/dev # Uname -a
/dev # Linux 192.168.1.1 2.4.4 #256 Fri .... ppc unknown
What noticed is this file is from kernel version linux-2.4.33.1(but board shows 2.4.4 probably someone must have updated this driver).
Code:
[where i can see this log]
static int do_write_oneword(struct map_info *map, struct flchip *chip, unsigned long adr, __u32 datum, int fast)
{
unsigned long timeo = jiffies + HZ;
unsigned int Last[4];
unsigned long Count = 0;
struct cfi_private *cfi = map->fldrv_priv;
DECLARE_WAITQUEUE(wait, current);
.
.
.
.
.
.
.
.
if (Last[(Count - 1) % 4] != datum){
printk("Last[%ld] is %x, datum is %x\n",(Count - 1) % 4,Last[(Count - 1) % 4],datum);
cfi_send_gen_cmd(0xF0, 0, chip->start, map, cfi, cfi->device_type, NULL);
DISABLE_VPP(map);
ret = -EIO;
}
DISABLE_VPP(map);
chip->state = FL_READY;
wake_up(&chip->wq);
cfi_spin_unlock(chip->mutex);
return ret;
}
Please help incase anyone know anytime bout it
Thanks In Advance .. !!
What noticed is this file is from kernel version linux-2.4.33.1(but board shows 2.4.4 probably someone must have updated this driver).
Someone suggested me it be due "unlock by pass mode" stuff. but i'm not aware of it.
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Cont ...
Q. Does this Spansion S29GL256S10TF102 supports this unlock bypass mode.
Q. Any kernel version support for this device Spansion S29GL256S10TF102; which i can try.
Q. What is this "unlock bypass mode" in some simple language which i can understand.
if you've any other advise that ican follow
Thanks Again..
Vipul