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| author | Ronald G. Minnich <rminnich@gmail.com> | 2013-03-04 16:39:35 -0800 |
|---|---|---|
| committer | David Hendricks <dhendrix@chromium.org> | 2013-03-06 22:04:51 +0100 |
| commit | f4861df1e749885ec68ea0f17a3589aa6e79d13f (patch) | |
| tree | 06f1222e4fc99f4aa34de96715129dee101e6edb /documentation | |
| parent | 3914a316c3d3ab1ba45fe33394f37aaefdc62d61 (diff) | |
google/snow: Change MMC0 to work in 8 bit mode.
The MMC0 on google/snow can run in 8 bit mode. To simplify driver development,
we thought disabling it (using zero, which runs in 1-bit / 4-bit mode) may help.
However, after some experiments in payload drivers, setting pinmux to 8 bit mode
can still allow MMC to run in 1-bit / 4-bit mode, so it's pretty safe to enable
8 bit mode by default for better performance.
Verified to boot on google/snow, and got MMC0 working.
Change-Id: Ic0acc723fe6a8aecf373429d3801beadd70815d9
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/2585
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'documentation')
0 files changed, 0 insertions, 0 deletions