From mboxrd@z Thu Jan  1 00:00:00 1970
From: Balaji T K <balajitk@ti.com>
Date: Mon, 12 May 2014 19:12:44 +0530
Subject: [U-Boot] [PATCH] mmc: omap_hsmmc: add adma support
In-Reply-To: <20140512132853.GZ22182@bill-the-cat>
References: <1399038920-19023-1-git-send-email-balajitk@ti.com>
	<20140512132853.GZ22182@bill-the-cat>
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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.

Thanks and Regards,
Balaji T K.

>