diff options
| author | Solomon Peachy <pizza@shaftnet.org> | 2020-08-08 22:25:04 -0400 |
|---|---|---|
| committer | Solomon Peachy <pizza@shaftnet.org> | 2020-08-08 22:29:29 -0400 |
| commit | 08c4b708ae52dc6bb5848b72a897e7790da5dd9e (patch) | |
| tree | c7dbccc45f6ba8c54712f41f6f855030bc8b3a73 /firmware/target | |
| parent | be2c8734cbf3f32fcf3513e8899e3b7596c2c19d (diff) | |
| download | rockbox-08c4b708ae.tar.gz rockbox-08c4b708ae.zip | |
jz4760: Move 11/22/44/88KHz back onto the PLL
PLL1 clock for those frequencies has been dropped from 508 to 169.5 MHz,
so it's still a respectable reduction.
(I'm not sure how/why it ever worked with the XTAL source, but it did,
and was off by an audible amount)
Change-Id: I614d87e7dfdfe9210702b9c646d3863c06d6780b
Diffstat (limited to 'firmware/target')
| -rw-r--r-- | firmware/target/mips/ingenic_jz47xx/codec-jz4760.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/firmware/target/mips/ingenic_jz47xx/codec-jz4760.c b/firmware/target/mips/ingenic_jz47xx/codec-jz4760.c index 233e6f4ed1..bc4286fd6a 100644 --- a/firmware/target/mips/ingenic_jz47xx/codec-jz4760.c +++ b/firmware/target/mips/ingenic_jz47xx/codec-jz4760.c @@ -219,8 +219,10 @@ void audiohw_set_frequency(int fsel) func_mode = 0; break; case HW_FREQ_11: // 0.7056 MHz - pll1_speed = 0; - mclk_div = 272; + pll1_speed = 508000000 / 3; + mclk_div = 180 / 3; +// pll1_speed = 0; +// mclk_div = 272; bclk_div = 4; func_mode = 0; break; @@ -237,8 +239,10 @@ void audiohw_set_frequency(int fsel) func_mode = 0; break; case HW_FREQ_22: // 1.4112 MHz - pll1_speed = 0; - mclk_div = 136; + pll1_speed = 508000000 / 3; + mclk_div = 90 / 3; +// pll1_speed = 0; +// mclk_div = 136; bclk_div = 4; func_mode = 0; break; @@ -256,8 +260,10 @@ void audiohw_set_frequency(int fsel) func_mode = 0; break; case HW_FREQ_44: // 2.8224 MHz - pll1_speed = 0; - mclk_div = 68; + pll1_speed = 508000000 / 3; + mclk_div = 45 / 3; +// pll1_speed = 0; +// mclk_div = 68; bclk_div = 4; dem = CS4398_DEM_44100; func_mode = 0; @@ -276,8 +282,10 @@ void audiohw_set_frequency(int fsel) func_mode = 1; break; case HW_FREQ_88: // 5.6448 MHz - pll1_speed = 0; - mclk_div = 68; + pll1_speed = 508000000 / 3; + mclk_div = 45 / 3; +// pll1_speed = 0; +// mclk_div = 68; bclk_div = 2; func_mode = 1; break; |