Hi,
I just found, if NAND ONFI parameter page first copy is
bad, u-boot will never read extra copes:
fsl_elbc_nand.c:
342 out_be32(&lbc->fbcr, 256);
343 ctrl->read_bytes = 256;
this code cause "read beyond buffer" error message:
nand_base.c:
chip->cmdfunc(mtd, NAND_CMD_PARAM, 0, -1);
3243 for (i = 0; i < 3; i++) {
3244 for (j = 0; j < sizeof(*p); j++)
3245 ((uint8_t *)p)[j] = chip->read_byte(mtd);
3246 if (onfi_crc16(ONFI_CRC_BASE, (uint8_t *)p, 254) ==
3247 le16_to_cpu(p->crc)) {
3248 break;
3249 }
3250 }
Unfortunately I do not working with latest u-boot now,
so can not provide a patch, read size should be increased to
at least 768 ( 3 copy mandatory for ONFI spec). Linux kernel should be
updated too.
I am also not expert for other NAND controllers drivers.
But first copy of ONFI parameter page CAN GO BAD. I seen it my self.
Andrei
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