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path: root/src/drivers/boards/px4fmu-v2/px4fmu2_init.c
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Diffstat (limited to 'src/drivers/boards/px4fmu-v2/px4fmu2_init.c')
-rw-r--r--src/drivers/boards/px4fmu-v2/px4fmu2_init.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/drivers/boards/px4fmu-v2/px4fmu2_init.c b/src/drivers/boards/px4fmu-v2/px4fmu2_init.c
index 71414d62c..bf41bb1fe 100644
--- a/src/drivers/boards/px4fmu-v2/px4fmu2_init.c
+++ b/src/drivers/boards/px4fmu-v2/px4fmu2_init.c
@@ -192,6 +192,7 @@ stm32_boardinitialize(void)
static struct spi_dev_s *spi1;
static struct spi_dev_s *spi2;
+static struct spi_dev_s *spi4;
static struct sdio_dev_s *sdio;
#include <math.h>
@@ -305,6 +306,17 @@ __EXPORT int nsh_archinitialize(void)
message("[boot] Initialized SPI port 2 (RAMTRON FRAM)\n");
+ spi4 = up_spiinitialize(4);
+
+ /* Default SPI4 to 1MHz and de-assert the known chip selects. */
+ SPI_SETFREQUENCY(spi4, 10000000);
+ SPI_SETBITS(spi4, 8);
+ SPI_SETMODE(spi4, SPIDEV_MODE3);
+ SPI_SELECT(spi4, PX4_SPIDEV_EXT0, false);
+ SPI_SELECT(spi4, PX4_SPIDEV_EXT1, false);
+
+ message("[boot] Initialized SPI port 4\n");
+
#ifdef CONFIG_MMCSD
/* First, get an instance of the SDIO interface */