[U-Boot] [PATCH v2 12/12] 83xx: Add support for fsl_dma driver

[Peter Tyser]

On Wed, 2009-07-08 at 09:07 -0500, Kumar Gala wrote:
> Peter,
> 
> Also, I'm not seeing anyone defining CONFIG_DDR_ECC_INIT_VIA_DMA for  
> 83xx.  I don't see any reason not to use DMA on 83xx.

When I submitted the original patch I didn't see any 83xx boards using
either CONFIG_ECC_INIT_VIA_DDRCONTROLLER or CONFIG_DDR_ECC_INIT_VIA_DMA.
It didn't look like the 83xx platform supported the
CONFIG_ECC_INIT_VIA_DDRCONTROLLER option at all, although some 83xx
boards make reference to !CONFIG_DDR_ECC_INIT_VIA_DMA.

I don't have any 83xx boards to test on and am not that familiar with
the 83xx so I didn't look into fixing the inconsistencies.  In a perfect
world CONFIG_ECC_INIT_VIA_DDRCONTROLLER would be enabled for all 83xx
cpus that supported it, and the DMA init would be the default.

I'd be happy to send a patch to change the 83xx arch to use DMA to
initialize ECC when !CONFIG_ECC_INIT_VIA_DDRCONTROLLER if someone else
will test.  Do all 83xx CPUs have the Elo DMA controller DMA engine?

Best,
Peter