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rambi: switch MCLK from 19.2Mhz to 25Mhz

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With following settings
    1.Coreboot 25Mhz
    2.Maxim codec configured with MCLK=25Mhz
    2.I2C 400Khz fixed
    4.Including  Enable/Disable SHDN bit when LRCLK starts/Stops
    5.Removed PLL toggle workaround routine.
audio playing is smooth before/after S3, no noise when recording so change
MCLK from 19.2 back to 25Mhz.

BUG=chrome-os-partner:26948
BRANCH=firmware-rambi-5216
TEST=test audio play and record on Rambi, works fine.

Change-Id: I5602feb39721344feab837ff4a3a18309a47a6a6
Signed-off-by: Kein Yuan <kein.yuan@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/193881
Tested-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Commit-Queue: Shawn Nematbakhsh <shawnn@chromium.org>
This commit is contained in:
Kein Yuan 2014-04-04 15:15:14 -07:00 • committed by chrome-internal-fetch
commit bfe1d535aa
1 changed files with 1 additions and 1 deletions
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2
src/mainboard/google/rambi/devicetree.cb
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@ -24,7 +24,7 @@ chip soc/intel/baytrail
register "usb2_per_port_rcomp_hs_pullup3" = "0x0300401d"
# LPE audio codec settings
register "lpe_codec_clk_freq" = "19" # 19.2MHz clock
register "lpe_codec_clk_freq" = "25" # 25MHz clock
register "lpe_codec_clk_num" = "0" # PMC_PLT_CLK[0]
# SD Card controller