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| author | Gregory Nutt <gnutt@nuttx.org> | 2014-07-19 13:07:55 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2014-07-19 13:07:55 -0600 |
| commit | aac310bd799c35e10f5c08513ce24ea2218bb024 (patch) | |
| tree | 3026d8e8cd0b4472376dbd1d5eebde88e36fd085 /nuttx/configs/sama5d4-ek/src | |
| parent | 00b2d4894179ea169fc8cc4cb44f48bb70fe2c42 (diff) | |
| download | px4-nuttx-aac310bd799c35e10f5c08513ce24ea2218bb024.tar.gz px4-nuttx-aac310bd799c35e10f5c08513ce24ea2218bb024.tar.bz2 px4-nuttx-aac310bd799c35e10f5c08513ce24ea2218bb024.zip | |
SAMA5: Add slow clock support
Diffstat (limited to 'nuttx/configs/sama5d4-ek/src')
| -rw-r--r-- | nuttx/configs/sama5d4-ek/src/sam_wm8904.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/nuttx/configs/sama5d4-ek/src/sam_wm8904.c b/nuttx/configs/sama5d4-ek/src/sam_wm8904.c index 09d188b84..78b169e04 100644 --- a/nuttx/configs/sama5d4-ek/src/sam_wm8904.c +++ b/nuttx/configs/sama5d4-ek/src/sam_wm8904.c @@ -49,10 +49,14 @@ #include <nuttx/audio/i2s.h> #include <nuttx/audio/wm8904.h> +#include <arch/board/board.h> + #include "up_arch.h" #include "sam_pio.h" #include "sam_twi.h" #include "sam_ssc.h" +#include "sam_sckc.h" +#include "sam_pck.h" #include "sama5d4-ek.h" @@ -270,6 +274,18 @@ int sam_wm8904_initialize(int minor) goto errout_with_i2s; } + /* Configure the DAC master clock. This clock is provided by PCK0 (PB26) + * that is connected to the WM8904 BCLK/GPIO4 and also drives the SSC + * TK0 input clock. + */ + + sam_sckc_enable(true); + (void)sam_pck_configure(PCK0, BOARD_SLOWCLK_FREQUENCY); + + /* Enable the DAC master clock */ + + sam_pck_enable(PCK0, true); + /* Configure WM8904 interrupts */ sam_pioirq(PIO_INT_WM8904); |