[U-Boot] [PATCH 1/1] ppc4xx: Fix ECC Correction bug with SMC ordering for NDFC driver

[Stefan Roese]

On Friday 21 August 2009 19:59:42 Feng Kan wrote:
> Fix ECC Correction bug where the byte offset location were double
> flipped causing correction routine to toggle the wrong byte location
> in the ECC segment. The ndfc_calculate_ecc routine change the order
> of getting the ECC code.
>         /* The NDFC uses Smart Media (SMC) bytes order */
>         ecc_code[0] = p[2];
>         ecc_code[1] = p[1];
>         ecc_code[2] = p[3];
> But in the Correction algorithm when calculating the byte offset
> location, the s1 is used as the upper part of the address. Which
> again reverse the order making the final byte offset address
> location incorrect.
> 	byteoffs = (s1 << 0) & 0x80;
> 	.
> 	.
> 	byteoffs |= (s0 >> 4) & 0x08;
> The order is change to read it in straight and let the correction
> function to revert it to SMC order.
>
> Signed-off-by: Feng Kan <fkan at amcc.com>
> Acked-by: Victor Gallardo <vgallardo at amcc.com>
> Acked-by: Prodyut Hazarika <phazarika at amcc.com>

Applied to u-boot-ppc4xx/master. Thanks.

Cheers,
Stefan

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