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EmbeddedPkg: MmcDxe: wait OCR busy bit free
authorHaojian Zhuang <haojian.zhuang@linaro.org>
Sun, 13 Nov 2016 06:47:50 +0000 (14:47 +0800)
committerLeif Lindholm <leif.lindholm@linaro.org>
Mon, 14 Nov 2016 15:45:08 +0000 (15:45 +0000)
According to eMMC spec, OCR.PowerUp bit is also busy bit. If the busy
bit is '0', CMD1 should be sent and OCR should be fetched again. And add
a timeout counter on the repeated steps.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

No differences found
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