Re: [PATCH] mmc: core: expose RPMB partition only for CMD23 capable host

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Hi,

On Fri, Jan 25 2013, Peter Ujfalusi wrote:
> On 01/25/2013 12:30 PM, Balaji T K wrote:
>> SET_BLOCK_COUNT CMD23 is needed for all access to RPMB partition.
>> If block count is not set by CMD23, all subsequent read/write commands
>> fail as per eMMC specification. So, If the host does not support CMD23,
>> do not expose RPMB partition.
>> 
>> Accessing RPMB partition can cause hang / huge delay
>> for host which do not support CMD23.
>
> Can this patch make it's way to 3.8? Without this patch my OMAP4 board's eMMC
> is not accessible causing blkid (via udev) to time out and slowing down the
> boot process.
>
> Tested-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>

Thanks, pushed to mmc-next for 3.8.

- Chris.
-- 
Chris Ball   <cjb@xxxxxxxxxx>   <http://printf.net/>
One Laptop Per Child
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