[U-Boot] [PATCH 1/2] nand_spl_simple: Add omap3 DMA usage to SPL

[Wolfgang Denk]

Dear Simon Schwarz,

In message <1318759804-18688-2-git-send-email-simonschwarzcor at gmail.com> you wrote:
> This adds DMA copy for the nand spl implementation. If CONFIG_SPL_DMA_SUPPORT
> is defined the DMA is used.
> 
> Based on DMA driver patch:
> http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/109744/focus=109747
> 
> Signed-off-by: Simon Schwarz <simonschwarzcor at gmail.com>
> Cc: scottwood at freescale.com
> Cc: s-paulraj at ti.com
> ---
>  drivers/mtd/nand/nand_spl_simple.c |  185 ++++++++++++++++++++++++++++++++++--
>  1 files changed, 176 insertions(+), 9 deletions(-)
...
> +	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
> +		res += omap3_dma_conf_transfer(0, nand_chip.IO_ADDR_R,
> +			(uint32_t *)p, CONFIG_SYS_NAND_ECCSIZE/4);

IIUC, drivers/mtd/nand/nand_spl_simple.c is a global, architecture
independent file.  However, you are adding OMAP3 specific code here.
If we did the same for all other potentially supported architectures
and SoCs, we'd soon have a serious mess.

Please move  architecture / SoC specific code out of such global
files.

Best regards,

Wolfgang Denk

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