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authorGary Thomas <gary@mlbassoc.com>2015-11-19 09:52:10 -0700
committerAndrei Gherzan <andrei@gherzan.ro>2015-12-02 15:33:43 +0100
commitbc0d788b47eeb86d7c4bee45a5131b3114f0ffc2 (patch)
tree3c93d28accb522b393dd13296a02432620217baa
parent0776b86c6629b7294ff61e67609f2d4e10e9712c (diff)
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rpi-config: SPI bus support
With the newer kernels that use device tree, the SPI bus is only enabled by a device tree setting. This is now supported by adding ENABLE_SPI_BUS = "1" in local.conf Signed-off-by: Gary Thomas <gary@mlbassoc.com>
-rw-r--r--README5
-rw-r--r--recipes-bsp/bootfiles/rpi-config_git.bb6
2 files changed, 11 insertions, 0 deletions
diff --git a/README b/README
index e16dee9..bef13a3 100644
--- a/README
+++ b/README
@@ -189,6 +189,11 @@ kernels.
NOTE: KERNEL_DEVICETREE is default enabled for kernel >= 3.18 and always disabled for
older kernel versions.
+2.M. Optional - enable SPI bus
+==============================
+When using device tree kernels, set this variable to enable the SPI bus
+ENABLE_SPI_BUS = "1"
+
3. Extra apps
=============
diff --git a/recipes-bsp/bootfiles/rpi-config_git.bb b/recipes-bsp/bootfiles/rpi-config_git.bb
index 45b9f1d..aa11b25 100644
--- a/recipes-bsp/bootfiles/rpi-config_git.bb
+++ b/recipes-bsp/bootfiles/rpi-config_git.bb
@@ -66,6 +66,12 @@ do_deploy() {
echo "# Enable offline compositing" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
echo "dispmanx_offline=1" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
fi
+
+ # SPI bus support
+ if [ -n "${ENABLE_SPI_BUS}" ]; then
+ echo "# Enable SPI bus" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
+ echo "dtparam=spi=on" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt
+ fi
}
addtask deploy before do_package after do_install