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SAMA5D4-EK: Correct WM8904 PCK output selection

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This commit is contained in:
Gregory Nutt 2014-09-18 08:35:15 -06:00
parent cf849664ec
commit e8b5a8e0d6
2 changed files with 16 additions and 8 deletions
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22
configs/sama5d4-ek/README.txt
View File

@ -2890,7 +2890,7 @@ Audio Support
---- ------------------ ---------------- ------------- ---------------------------------------
PIO USAGE BOARD SIGNAL WM8904 PIN NOTE
---- ------------------ ---------------- ------------- ---------------------------------------
PA30 TWD0 AUDIO_TWD0_PA30 3 SDA Pulled up, See J23 note below
PA30 TWD0 AUDIO_TWD0_PA30 3 SDA Pulled up, See JP23 note below
PA31 TWCK0 AUDIO_TWCK0_PA31 2 SCLK Pulled up
PB10 AUDIO_PCK2/EXP AUDIO_PCK2_PB10 28 MCLK
PB27 AUDIO/HDMI_TK0/EXP AUDIO_TK0_PB27 29 BCLK/GPIO4 Note TK0 and RK0 are mutually exclusive
@ -2901,7 +2901,7 @@ Audio Support
PB28 AUDIO/HDMI_TD0/EXP AUDIO_TD0_PB28 32 ACDAT
PE4 AUDIO_IRQ AUDIO_IRQ_PE4 1 IRQ/GPIO1 Audio interrupt
---- ------------------ ---------------- ------------- ---------------------------------------
Note that jumper J23 must be closed to connect AUDIO_TWD0_PA30
Note that jumper JP23 must be closed to connect AUDIO_TWD0_PA30 (Rev C. only)
WM8904 Configuration
--------------------
@ -4429,8 +4429,9 @@ Configurations
NOTE: The WM8904 driver should not be included in the
configuration if you are using the Rev C version of the board
(there were some I2C communication issues for the WM8904 interface
on Rev C of the board). Instead the "NULL" audio device in built
in to support higher level testing.
on Rev C of the board):
CONFIG_SYSTEM_NXPLAYER=n
This configuration depends on media files in the default mountpoint
at /mnt/sdard. You will need to mount the media before running
@ -4474,7 +4475,12 @@ Configurations
2014-8-30: Retesting today I am seeing a strange behavior: Serial
output is coming out in chunks with delays between the chunks. It
appears that something is not good in the serial port configuration.
I see no such chunky behavior in, for example, grahics output.
I see no such chunky behavior in, for example, graphics output.
2014-9-17: I do not see that chunked output behavior. However, I do
notice that the serial output is sluggish if there is not network
cable connected. When the network connected the serial output is
responsive: Something must be keeping the system too busy when
there is not network (probably the network monitor).
nxwm:
@ -4639,8 +4645,10 @@ Configurations
NOTE: The WM8904 driver should not be included in the
configuration if you are using the Rev C version of the board
(there were some I2C communication issues for the WM8904 interface
on Rev C of the board). Instead the "NULL" audio device in built
in to support higher level testing.
on Rev C of the board). You may either (1) Disable audio support
and disable the Media Player GUI, or (2) configure the "NULL" audio
device so that the GUI will function correctly (with no sound,
of course).
This configuration depends on media files in the default mountpoint
at /mnt/sdard (configurable). If you see the message "Media volume

2
configs/sama5d4-ek/src/sam_wm8904.c
View File

@ -300,7 +300,7 @@ int sam_wm8904_initialize(int minor)
#else
/* Drive the DAC with the main clock (12 MHz) */
(void)sam_pck_configure(PCK0, PCKSRC_MAINCK, BOARD_MAINCK_FREQUENCY);
(void)sam_pck_configure(PCK2, PCKSRC_MAINCK, BOARD_MAINCK_FREQUENCY);
#endif
/* Enable the DAC master clock */