By putting the fdt blob into a distinctive area we can ensure that it appears
at the start of the data section and is word-aligned.
Note: It does not seem to be possible to get objcopy to honour its
--section-alignment flag, which would otherwise provide an easier fix
for this problem.
Signed-off-by: Simon Glass <s...@chromium.org>
---
arch/arm/cpu/armv7/u-boot.lds | 5 +++++
dts/Makefile | 2 +-
2 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/arch/arm/cpu/armv7/u-boot.lds b/arch/arm/cpu/armv7/u-boot.lds
index 40ecf78..793e51b 100644
--- a/arch/arm/cpu/armv7/u-boot.lds
+++ b/arch/arm/cpu/armv7/u-boot.lds
@@ -43,6 +43,11 @@ SECTIONS
. = ALIGN(4);
.data : {
+ /*
+ * Sadly objcopy seems to ignore --section-alignment.
+ * Put any embedded device tree first so it is aligned.
+ */
+ *(.dts.data)
*(.data)
}
diff --git a/dts/Makefile b/dts/Makefile
index 5792afd..83547d4 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -79,7 +79,7 @@ $(obj)dt.o: $(DT_BIN)
\
cd $(dir ${DT_BIN}) && \
$(OBJCOPY) -I binary -O $${oformat} -B $${oarch} \
- $(notdir ${DT_BIN}) $@
+ --prefix-sections=.dts $(notdir ${DT_BIN}) $@
rm $(DT_BIN)
OBJS-$(CONFIG_OF_EMBED) := dt.o
--
1.7.3.1
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