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| author | Gregory Nutt <gnutt@nuttx.org> | 2014-08-11 14:29:43 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2014-08-11 14:29:43 -0600 |
| commit | c3d48a6b4f7b1b340876d4460a77e58e3fa5e5c5 (patch) | |
| tree | 34548c82d1e28ee44f0738985eef5ad5494dc748 /nuttx/configs/sama5d4-ek/src | |
| parent | 65a029c74614adbfaba41ef0192c7e03d993ff30 (diff) | |
| download | px4-nuttx-c3d48a6b4f7b1b340876d4460a77e58e3fa5e5c5.tar.gz px4-nuttx-c3d48a6b4f7b1b340876d4460a77e58e3fa5e5c5.tar.bz2 px4-nuttx-c3d48a6b4f7b1b340876d4460a77e58e3fa5e5c5.zip | |
SAMA5: Enable the 32.768 crystal if SCHED_TICKLESS is selected
Diffstat (limited to 'nuttx/configs/sama5d4-ek/src')
| -rw-r--r-- | nuttx/configs/sama5d4-ek/src/sam_boot.c | 9 | ||||
| -rw-r--r-- | nuttx/configs/sama5d4-ek/src/sam_wm8904.c | 6 |
2 files changed, 11 insertions, 4 deletions
diff --git a/nuttx/configs/sama5d4-ek/src/sam_boot.c b/nuttx/configs/sama5d4-ek/src/sam_boot.c index d1ea4a500..fb6f32cfe 100644 --- a/nuttx/configs/sama5d4-ek/src/sam_boot.c +++ b/nuttx/configs/sama5d4-ek/src/sam_boot.c @@ -41,6 +41,7 @@ #include <debug.h> +#include "sam_sckc.h" #include "sama5d4-ek.h" /************************************************************************************ @@ -60,13 +61,19 @@ * * Description: * All SAMA5 architectures must provide the following entry point. This entry - * point is called early in the intitialization -- after all memory has been + * point is called early in the initialization -- after all memory has been * configured and mapped but before any devices have been initialized. * ************************************************************************************/ void sam_boardinitialize(void) { +#ifdef CONFIG_SAMA5D4EK_SLOWCLOCK + /* Enable the external slow clock */ + + sam_sckc_enable(true); +#endif + /* Configure SPI chip selects if 1) SPI is enable, and 2) the weak function * sam_spiinitialize() has been brought into the link. */ diff --git a/nuttx/configs/sama5d4-ek/src/sam_wm8904.c b/nuttx/configs/sama5d4-ek/src/sam_wm8904.c index c11eb1457..b42498353 100644 --- a/nuttx/configs/sama5d4-ek/src/sam_wm8904.c +++ b/nuttx/configs/sama5d4-ek/src/sam_wm8904.c @@ -56,7 +56,6 @@ #include "sam_pio.h" #include "sam_twi.h" #include "sam_ssc.h" -#include "sam_sckc.h" #include "sam_pck.h" #include "sama5d4-ek.h" @@ -293,9 +292,10 @@ int sam_wm8904_initialize(int minor) */ #ifdef CONFIG_SAMA5D4EK_WM8904_SRCSCK - /* Drive the DAC with the slow clock (32.768 KHz) */ + /* Drive the DAC with the slow clock (32.768 KHz). The slow clock was + * enabled in sam_boot.c if needed. + */ - sam_sckc_enable(true); (void)sam_pck_configure(PCK2, PCKSRC_SCK, BOARD_SLOWCLK_FREQUENCY); #else /* Drive the DAC with the main clock (12 MHz) */ |