[U-Boot] [PATCH] mmc: omap_hsmmc: add adma support

[Tom Rini]

On Mon, May 12, 2014 at 07:12:44PM +0530, Balaji T K wrote:
> On Monday 12 May 2014 06:58 PM, Tom Rini wrote:
> >On Fri, May 02, 2014 at 07:25:20PM +0530, Balaji T K wrote:
> >
> >>MMC instance 1 and 2 is capable of ADMA in omap4, omap5.
> >>Add support for ADMA and enable ADMA for read/write to
> >>improve mmc throughput.
> >[snip]
> >>@@ -44,12 +45,30 @@
> >>  #undef OMAP_HSMMC_USE_GPIO
> >>  #endif
> >>
> >>+#ifdef CONFIG_SPL_BUILD
> >>+#undef CONFIG_OMAP_MMC_ADMA
> >>+#endif
> >
> >Why?  Especially since a number of the folks interested in this for
> >performance want it for SPL OS mode.  Thanks!
> 
> Because in SoCs like OMAP4/5 mmc1/2 adma doesn't have access to sram.
> So can't have descriptor or src / destination buffers (allocated on stack)
> given by mmc core on sram.

And we can't malloc them?

-- 
Tom
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