[PATCH] MTD-NAND: Changes to read_page APIs to support NAND_ECC_HW_SYNDROME mode on TI DaVinci DM355

[Thomas Gleixner]

Sneha,

On Wed, 1 Apr 2009, nsnehaprabha at ti.com wrote:

Would you please care to CC the still caring but admittedly lazy and
distracted maintainer on such patches ?

> From: Sneha Narnakaje <nsnehaprabha at ti.com>
> 
> The NAND controller on TI DaVinci DM355 supports NAND devices with large page size (2K and 4K), but the HW ECC is handled for every 512byte read/write chunks. The current HW_SYNDROME read_page/write_page APIs in the NAND core (nand_base) use the "infix OOB" scheme. The core APIs overwrite NAND manufacturer's bad block meta data, thus complicating the jobs of non-Linux NAND programmers (end equipment manufacturering). These APIs also imply ECC protection for the prepad bytes, causing nand raw_write operations to fail.

Please use proper line breaks. 523 characters do not fit into a
terminal.

Thanks,

	tglx