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mmc: Add 'mmc rst-function' sub-command

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Some eMMC chips may need the RST_n_FUNCTION bit set to a non-zero value
in order for warm reset of the system to work.  Details on this being
required will be part of the eMMC datasheet.  Also add using this
command to the dra7xx README.

* Whitespace fix by panto

Signed-off-by: Tom Rini <trini@ti.com>
Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
This commit is contained in:
Tom Rini
2014-02-07 14:15:20 -05:00
committed by Pantelis Antoniou
parent 74c32ef58d
commit 33ace362fd
4 changed files with 53 additions and 0 deletions
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board/ti/dra7xx/README
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@@ -23,3 +23,4 @@ U-Boot # tftp ${loadaddr} dra7xx/u-boot.img
U-Boot # mmc write ${loadaddr} 300 400
U-Boot # mmc bootbus 1 2 0 2
U-Boot # mmc partconf 1 1 1 0
U-Boot # mmc rst-function 1 1