Some boards use a CONFIG option to specify the value of this variable.
This is normally handled by efi_get_distro_fdt_name() but in the case
of sunxi this does not work, since 'soc' is sunxi, but the files are
in the allwinner directory.
Provide a work-around for this particular case.
Signed-off-by: Simon Glass <s...@chromium.org>
---
Makefile | 1 +
doc/usage/environment.rst | 12 ++++++++++++
2 files changed, 13 insertions(+)
diff --git a/Makefile b/Makefile
index 2861b4d1402..8ea3308160f 100644
--- a/Makefile
+++ b/Makefile
@@ -1842,6 +1842,7 @@ quiet_cmd_gen_envp = ENVP $@
$(CPP) -P $(CFLAGS) -x assembler-with-cpp -undef \
-D__ASSEMBLY__ \
-D__UBOOT_CONFIG__ \
+ -DDEFAULT_DEVICE_TREE=$(subst
",,$(CONFIG_DEFAULT_DEVICE_TREE)) \
-I . -I include -I $(srctree)/include \
-include linux/kconfig.h -include include/config.h \
-I$(srctree)/arch/$(ARCH)/include \
diff --git a/doc/usage/environment.rst b/doc/usage/environment.rst
index cc33d3ec0f2..eaebf61742a 100644
--- a/doc/usage/environment.rst
+++ b/doc/usage/environment.rst
@@ -87,6 +87,18 @@ settings. For example::
#include <env/ti/mmc.env>
+Quotes are not supressed, for example::
+
+ fdtfile=CONFIG_DEFAULT_DEVICE_TREE.dtb
+ # produces: fdtfile="sun7i-a20-pcduino3.dtb"
+
+For this particular issue you can use DEFAULT_DEVICE_TREE instead::
+
+ fdtfile=DEFAULT_DEVICE_TREE.dtb
+ # produces: fdtfile=sun7i-a20-pcduino3.dtb
+
+There is no general way to remove quotes.
+
If CONFIG_ENV_SOURCE_FILE is empty and the default filename is not present,
then
the old-style C environment is used instead. See below.
--
2.34.1
