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| author | Lei Wen <leiwen@marvell.com> | 2011-09-02 17:34:17 +0000 |
|---|---|---|
| committer | Andy Fleming <afleming@freescale.com> | 2011-11-03 02:14:58 -0500 |
| commit | 02f3029f1810b99869254d0cf0a71946a008a728 (patch) | |
| tree | ed0ad1fdeea21936fda8ae02b6bac552ad0c3df7 /doc/README.p4080ds | |
| parent | 07133f2e7b671866bcf91ef6926c187c392c7aa1 (diff) | |
| download | u-boot-imx-02f3029f1810b99869254d0cf0a71946a008a728.zip u-boot-imx-02f3029f1810b99869254d0cf0a71946a008a728.tar.gz u-boot-imx-02f3029f1810b99869254d0cf0a71946a008a728.tar.bz2 | |
mmc: retry the cmd8 to meet 74 clocks requirement in the spec
For some controller it has dynamic clock gating, and only toggle out clk
when the first cmd0 send out, while some card strictly obey the 74
clocks rule, the interval may not be sufficient between the cmd0 and
this cmd8, retry to fulfil the clock requirement.
Signed-off-by: Lei Wen <leiwen@marvell.com>
Tested-by: Marek Vasut <marek.vasut@gmail.com>
Diffstat (limited to 'doc/README.p4080ds')
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