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From 13c8784da3dbd977f64cec740eba775b6fab11c2 Mon Sep 17 00:00:00 2001
From: Herve Jourdain <herve.jourdain@neuf.fr>
Date: Fri, 20 May 2016 16:02:23 +0800
Subject: [yocto][meta-raspberrypi][PATCH v4 4/5] linux-raspberrypi_4.4.inc:
support for .dtbo files for dtb overlays
Upstream-Status: Pending
Kernel 4.4.6+ on RaspberryPi support .dtbo files for overlays, instead of .dtb.
Patch the kernel, which has faulty rules to generate .dtbo the way yocto does
Signed-off-by: Herve Jourdain <herve.jourdain@neuf.fr>
---
.../0001-fix-dtbo-rules.patch | 27 ++++++++++++++++++++++
1 file changed, 27 insertions(+)
create mode 100644 recipes-kernel/linux/linux-raspberrypi-4.4/0001-fix-dtbo-rules.patch
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index a2e7cf7..673c1cb 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -333,6 +333,8 @@ $(INSTALL_TARGETS):
%.dtb: | scripts
$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
+%.dtbo: | scripts
+ $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
PHONY += dtbs dtbs_install
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 3079c4f..6cc3766 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -293,7 +293,8 @@ $(obj)/%.dtb: $(src)/%.dts FORCE
$(call if_changed_dep,dtc)
quiet_cmd_dtco = DTCO $@
-cmd_dtco = $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
+cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
+ $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
$(objtree)/scripts/dtc/dtc -@ -H epapr -O dtb -o $@ -b 0 \
-i $(dir $<) $(DTC_FLAGS) \
-d $(depfile).dtc.tmp $(dtc-tmp) ; \
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