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authorGravatar Yann E. MORIN <yann.morin.1998@free.fr>2015-01-09 23:46:20 +0100
committerGravatar Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2015-01-10 12:21:20 +0100
commit958c224c56664e25698e7f6e992c348c64264643 (patch)
treee862ce8ad4ff7bb82aa4a24efc0128d17f7d289c /package/rpi-firmware
parent7a6cf0485c173d7ba19848ad2f3be52ead729f0b (diff)
downloadbuildroot-958c224c56664e25698e7f6e992c348c64264643.tar.gz
buildroot-958c224c56664e25698e7f6e992c348c64264643.tar.bz2
package/rpi-firmware: install DTB blobs
Add an option to install all the DTBs: - standard DTBs for standalon A/B and A+/B+ models; - overlay DTBs for the 'hats' addon boards. Install the DTBs as per the traditional layout expected by all RPi users, that is: - base DTBs alongside the other boot files; - overlay DTBs in a sub-directory. This requires the user provide a specially configured Linux defconfig file, as the default ones do not enable USE_OF. [Thomas: adjust comment explaining why we use a different version when installing the DTBs is selected.] Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'package/rpi-firmware')
-rw-r--r--package/rpi-firmware/Config.in11
-rw-r--r--package/rpi-firmware/rpi-firmware.mk16
2 files changed, 27 insertions, 0 deletions
diff --git a/package/rpi-firmware/Config.in b/package/rpi-firmware/Config.in
index cd45be4ea4..80ba88ac13 100644
--- a/package/rpi-firmware/Config.in
+++ b/package/rpi-firmware/Config.in
@@ -45,4 +45,15 @@ config BR2_PACKAGE_RPI_FIRMWARE_BOOT
default "_x" if BR2_PACKAGE_RPI_FIRMWARE_X
default "_cd" if BR2_PACKAGE_RPI_FIRMWARE_CD
+config BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTBS
+ bool "Install Device Tree Blobs (DTBs)"
+ help
+ Say 'y' here if you want to boot your kernel that has support
+ for the device tree.
+
+ Note that the defconfig files in the Raspberry Pi fork of the
+ Linux kernel do not enable support for the Device Tree. You'll
+ have to provide your own Linux config or defconfig file with
+ device tree enabled, to make use of those DTBs.
+
endif # BR2_PACKAGE_RPI_FIRMWARE
diff --git a/package/rpi-firmware/rpi-firmware.mk b/package/rpi-firmware/rpi-firmware.mk
index eb835ee797..03178d5559 100644
--- a/package/rpi-firmware/rpi-firmware.mk
+++ b/package/rpi-firmware/rpi-firmware.mk
@@ -11,12 +11,28 @@ RPI_FIRMWARE_LICENSE_FILES = boot/LICENCE.broadcom
RPI_FIRMWARE_INSTALL_TARGET = NO
RPI_FIRMWARE_INSTALL_IMAGES = YES
+ifeq ($(BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTBS),y)
+RPI_FIRMWARE_DEPENDENCIES += host-rpi-firmware
+# The Device Tree blobs are not yet in the master branch of the
+# raspberrypi firmware project, so we have to use a separate branch
+# for now.
+RPI_FIRMWARE_VERSION = 09627457b9e15bf4ea4e6751d3c173a3fb65df07
+define RPI_FIRMWARE_INSTALL_DTB
+ $(INSTALL) -D -m 0644 $(@D)/boot/bcm2708-rpi-b.dtb $(BINARIES_DIR)/rpi-firmware/bcm2708-rpi-b.dtb
+ $(INSTALL) -D -m 0644 $(@D)/boot/bcm2708-rpi-b-plus.dtb $(BINARIES_DIR)/rpi-firmware/bcm2708-rpi-b-plus.dtb
+ for ovldtb in $(@D)/boot/overlays/*.dtb; do \
+ $(INSTALL) -D -m 0644 $${ovldtb} $(BINARIES_DIR)/rpi-firmware/overlays/$${ovldtb##*/} || exit 1; \
+ done
+endef
+endif
+
define RPI_FIRMWARE_INSTALL_IMAGES_CMDS
$(INSTALL) -D -m 0644 $(@D)/boot/bootcode.bin $(BINARIES_DIR)/rpi-firmware/bootcode.bin
$(INSTALL) -D -m 0644 $(@D)/boot/start$(BR2_PACKAGE_RPI_FIRMWARE_BOOT).elf $(BINARIES_DIR)/rpi-firmware/start.elf
$(INSTALL) -D -m 0644 $(@D)/boot/fixup$(BR2_PACKAGE_RPI_FIRMWARE_BOOT).dat $(BINARIES_DIR)/rpi-firmware/fixup.dat
$(INSTALL) -D -m 0644 package/rpi-firmware/config.txt $(BINARIES_DIR)/rpi-firmware/config.txt
$(INSTALL) -D -m 0644 package/rpi-firmware/cmdline.txt $(BINARIES_DIR)/rpi-firmware/cmdline.txt
+ $(RPI_FIRMWARE_INSTALL_DTB)
endef
# We have no host sources to get, since we already