Can someone please give me a hint howto send a command to a flash chip, in
my case to enable on-die-ecc?
I found at some place how to read the byte, but I don't understand how to
modify it for write (chip->write_byte isn't the way):
* ############################################## */
/* MICRON: Test on-die ECC status; return: 1/On or 0/Off */
int test_on_die_ecc(struct mtd_info *mtd)
{
struct nand_chip *chip = mtd->priv;
int addr = 0x90;
uint8_t data, data_;
chip->cmdfunc(mtd,NAND_CMD_GET_FEATURES,addr,-1);
ndelay(2000);
data = chip->read_byte(mtd);
return((data & 0x08) ? 1 : 0 );
}
---
Can you help me what do I have to do send this below?
ECC can be enabled using the following sequence:
EFh(cmd)-90h(addr)-08h(data)-00h(data)-00h(data)-00h(data)-wait(tFEAT).
ECC can be disabled using the following sequence:
EFh(cmd)-90h(addr)-00h(data)-00h(data)-00h(data)-00h(data)-wait(tFEAT).
--
For more options, visit http://beagleboard.org/discuss
---
You received this message because you are subscribed to the Google Groups
"BeagleBoard" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.
