[meta-freescale] u-boot for i.mx6Q doesn't initialize usdhc4
Otavio Salvador
otavio at ossystems.com.br
Sat Sep 6 11:15:31 PDT 2014
On Sat, Sep 6, 2014 at 1:39 PM, Wally Yeh <wally.yeh at atrustcorp.com> wrote:
> Dear All:
> hello, I have a custom board for i.mx6Q, it have almost the same layout
> with mx6q_sabresd board. this board attach one eMMC on it's usdhc4 port(so
> It will locate in mmc dev 3 in uboot).
>
> Since I change uboot form SDK_3.0.35 to yocto. my board can't recognize
> mmc dev 3 anymore.
>
> I notice uboot in yocto(version v2014.01-r0) just initialize usdhc1~3,
> and skip usdhc4.
>
> Does this is a design on purpose or an issue need to fix?
This is on purpose; the U-Boot code is board specific so you need to
make a board configuration and initialization (on the board file)
according to your board layout.
--
Otavio Salvador O.S. Systems
http://www.ossystems.com.br http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854 Mobile: +1 (347) 903-9750
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