[PATCH] u-boot from nand and skip bad block

[Andy Green]

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Somebody in the thread at some point said:
| Hi,
|
| For s3c2410 the code use the 0x50 command for read the extra byte and
| the 5 byte is the code to read (0xf mask is for 16 byte of extra byte)
|
| For s3c2442 the read is on the 2048 as reported by documentation:
| "All device locations are erased(FFh) except locations where the initial
| invalid block(s)
| information is written prior to shipping. The
| initial invalid block(s) status is defined by the 1st byte in the spare
| area.
| Samsung makes sure that either the 1st or 2nd page of every
| initial invalid block has non-FFh data at the column address of 2048."
| It is correct to use the page size. If you see at the code for the
| s3c2410 the command
| is different. I think that the test is corrent. So the test is done on
| first page (addr)
| and second page (addr + PAGE_SIZE)

OK, thanks for going to the trouble to check and explain it.

- -Andy
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