summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--Makefile.inc12
-rw-r--r--src/Kconfig11
2 files changed, 21 insertions, 2 deletions
diff --git a/Makefile.inc b/Makefile.inc
index b7c490473d..446e321313 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -25,6 +25,7 @@ endif
CONFIG_CBFS_PREFIX:=$(call strip_quotes,$(CONFIG_CBFS_PREFIX))
CONFIG_FMDFILE:=$(call strip_quotes,$(CONFIG_FMDFILE))
CONFIG_DEVICETREE:=$(call strip_quotes, $(CONFIG_DEVICETREE))
+CONFIG_OVERRIDE_DEVICETREE:=$(call strip_quotes, $(CONFIG_OVERRIDE_DEVICETREE))
#######################################################################
# misleadingly named, this is the coreboot version
@@ -558,12 +559,19 @@ $(obj)/config.h: $(objutil)/kconfig/conf
# needed objects that every mainboard uses
# Creation of these is architecture and mainboard independent
DEVICETREE_FILE := $(src)/mainboard/$(MAINBOARDDIR)/$(CONFIG_DEVICETREE)
+
+ifneq ($(CONFIG_OVERRIDE_DEVICETREE),)
+
+OVERRIDE_DEVICETREE_FILE := $(src)/mainboard/$(MAINBOARDDIR)/$(CONFIG_OVERRIDE_DEVICETREE)
+
+endif
+
DEVICETREE_STATIC_C := $(obj)/mainboard/$(MAINBOARDDIR)/static.c
-$(DEVICETREE_STATIC_C): $(DEVICETREE_FILE) $(objutil)/sconfig/sconfig
+$(DEVICETREE_STATIC_C): $(DEVICETREE_FILE) $(OVERRIDE_DEVICETREE_FILE) $(objutil)/sconfig/sconfig
@printf " SCONFIG $(subst $(src)/,,$(<))\n"
mkdir -p $(dir $(DEVICETREE_STATIC_C))
- $(objutil)/sconfig/sconfig $(DEVICETREE_FILE) $(DEVICETREE_STATIC_C)
+ $(objutil)/sconfig/sconfig $(DEVICETREE_FILE) $(DEVICETREE_STATIC_C) $(OVERRIDE_DEVICETREE_FILE)
ramstage-y+=$(DEVICETREE_STATIC_C)
romstage-y+=$(DEVICETREE_STATIC_C)
diff --git a/src/Kconfig b/src/Kconfig
index fd0a4eb9a6..875c9d0790 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -295,6 +295,17 @@ config DEVICETREE
Examples: "devicetree.variant.cb"
"variant/devicetree.cb"
+config OVERRIDE_DEVICETREE
+ string
+ default ""
+ help
+ This symbol allows variants to provide an override devicetree file to
+ override the registers and/or add new devices on top of the ones
+ provided by baseboard devicetree using CONFIG_DEVICETREE.
+
+ Examples: "devicetree.variant-override.cb"
+ "variant/devicetree-override.cb"
+
config CBFS_SIZE
hex "Size of CBFS filesystem in ROM"
# Default value set at the end of the file