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px4_fmu-v4: add runtime external SPI4 detection to support pmw3901 (#11301)

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* The build is built with SPI4. At run time the signal GPIO_8266_GPIO2 it tested. If it is low the SPI4 is configured. If it is high SPI4 is not configured.
 * board_common: Add Notion of Board has bus manifest
This commit is contained in:
David Sidrane
2019-01-29 13:44:15 -05:00
committed by Daniel Agar
parent 53a127beb9
commit 6f9a9b3d2c
11 changed files with 248 additions and 52 deletions
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src/lib/drivers/device/nuttx/SPI.cpp
+8 -1
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@@ -94,7 +94,14 @@ SPI::init()
/* attach to the spi bus */
if (_dev == nullptr) {
_dev = px4_spibus_initialize(get_device_bus());
int bus = get_device_bus();
if (!board_has_bus(BOARD_SPI_BUS, bus)) {
ret = -ENOENT;
goto out;
}
_dev = px4_spibus_initialize(bus);
}
if (_dev == nullptr) {