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ARM: mach-shmobile: ap4evb: update MMC/SHDI tiny document

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MMC0/SDHI1 (CN7) can be selected by dip switch.
And card voltage can be selected by jumper pin.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Kuninori Morimoto 2010-06-01 04:31:29 +00:00 committed by Paul Mundt
parent 21a89344ae
commit d3d03e4865
1 changed files with 14 additions and 8 deletions
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22
arch/arm/mach-shmobile/board-ap4evb.c
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@ -128,15 +128,21 @@
*/
/*
* MMC (CN7)
* MMC0/SDHI1 (CN7)
*
* J22 : 1-2: 1.8v for MMC
* 2-3: 3.3v for MMC
* SW1 : OFF
* SW33: bit1: OFF
* bit2: ON
* bit3: ON
* bit4: X
* J22 : select card voltage
* 1-2 pin : 1.8v
* 2-3 pin : 3.3v
*
* SW1 | SW33
* | bit1 | bit2 | bit3 | bit4
* ------------+------+------+------+-------
* MMC0 OFF | OFF | ON | ON | X
* SDHI1 OFF | ON | X | OFF | ON
*
* voltage lebel
* CN7 : 1.8v
* CN12: 3.3v
*/
/* MTD */