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| author | Koen Beel <koen.beel@barco.com> | 2011-07-15 17:39:00 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-16 14:14:54 -0700 |
| commit | 6770fa9b440e57ea2a7c586063c5c30da2933513 (patch) | |
| tree | 72308f40815589798c5eb6e4738907824aea9d90 /fs | |
| parent | 25dd1546f84a5d5bf85686e36b6d5fb8a4cbcca3 (diff) | |
| download | lwn-6770fa9b440e57ea2a7c586063c5c30da2933513.tar.gz lwn-6770fa9b440e57ea2a7c586063c5c30da2933513.zip | |
mmc: mxs-mmc: fix clock rate setting
commit d982dcdc4e64eb1881df44b0035a8268bf1ab067 upstream.
Fix clock rate setting in the mxs-mmc driver. Previously, if div2 was 0
then the value for TIMING_CLOCK_RATE would have been 255 instead of 0.
The limits for div1 (TIMING_CLOCK_DIVIDE) and div2 (TIMING_CLOCK_RATE+1)
were also not correctly defined.
Can easily be reproduced on mx23evk: default clock for high speed sdio
cards is 50 MHz. With a SSP_CLK of 28.8 MHz default), this resulted in
an actual clock rate of about 56 kHz. Tested on mx23evk.
Signed-off-by: Koen Beel <koen.beel@barco.com>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions