mx31pdk: add CONFIG_SPL_LIBGENERIC_SUPPORT

[karo-tx-uboot.git] / config.mk

diff --git a/config.mk b/config.mk
index fa33e628513ce78c097f33821f77794a569c74d4..b427a4eed0c6f05a74308592652826fdf3b06426 100644 (file)
--- a/config.mk
+++ b/config.mk
@@ -23,6 +23,13 @@
 
 #########################################################################
 
+# Set shell to bash if possible, otherwise fall back to sh
+SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
+       else if [ -x /bin/bash ]; then echo /bin/bash; \
+       else echo sh; fi; fi)
+
+export SHELL
+
 ifeq ($(CURDIR),$(SRCTREE))
 dir :=
 else
@@ -104,7 +111,7 @@ HOSTCFLAGS  += -pedantic
 
 #########################################################################
 #
-# Option checker (courtesy linux kernel) to ensure
+# Option checker, gcc version (courtesy linux kernel) to ensure
 # only supported compiler options are used
 #
 CC_OPTIONS_CACHE_FILE := $(OBJTREE)/include/generated/cc_options.mk
@@ -125,11 +132,20 @@ cc-option = $(strip $(if $(findstring $1,$(CC_OPTIONS)),$1,\
                $(if $(call cc-option-sys,$1),$1,$2)))
 endif
 
+# cc-version
+# Usage gcc-ver := $(call cc-version)
+cc-version = $(shell $(SHELL) $(SRCTREE)/tools/gcc-version.sh $(CC))
+binutils-version = $(shell $(SHELL) $(SRCTREE)/tools/binutils-version.sh $(AS))
+
 #
 # Include the make variables (CC, etc...)
 #
 AS     = $(CROSS_COMPILE)as
-LD     = $(CROSS_COMPILE)ld
+
+# Always use GNU ld
+LD     = $(shell if $(CROSS_COMPILE)ld.bfd -v > /dev/null 2>&1; \
+               then echo "$(CROSS_COMPILE)ld.bfd"; else echo "$(CROSS_COMPILE)ld"; fi;)
+
 CC     = $(CROSS_COMPILE)gcc
 CPP    = $(CC) -E
 AR     = $(CROSS_COMPILE)ar
@@ -140,6 +156,7 @@ OBJCOPY = $(CROSS_COMPILE)objcopy
 OBJDUMP = $(CROSS_COMPILE)objdump
 RANLIB = $(CROSS_COMPILE)RANLIB
 DTC    = dtc
+CHECK  = sparse
 
 #########################################################################
 
@@ -201,10 +218,26 @@ ifneq ($(CONFIG_SPL_TEXT_BASE),)
 CPPFLAGS += -DCONFIG_SPL_TEXT_BASE=$(CONFIG_SPL_TEXT_BASE)
 endif
 
+ifneq ($(CONFIG_SPL_PAD_TO),)
+CPPFLAGS += -DCONFIG_SPL_PAD_TO=$(CONFIG_SPL_PAD_TO)
+endif
+
+ifneq ($(CONFIG_UBOOT_PAD_TO),)
+CPPFLAGS += -DCONFIG_UBOOT_PAD_TO=$(CONFIG_UBOOT_PAD_TO)
+endif
+
 ifeq ($(CONFIG_SPL_BUILD),y)
 CPPFLAGS += -DCONFIG_SPL_BUILD
 endif
 
+# Does this architecture support generic board init?
+ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
+ifneq ($(CONFIG_SYS_GENERIC_BOARD),)
+CHECK_GENERIC_BOARD = $(error Your architecture does not support generic board. \
+Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file)
+endif
+endif
+
 ifneq ($(RESET_VECTOR_ADDRESS),)
 CPPFLAGS += -DRESET_VECTOR_ADDRESS=$(RESET_VECTOR_ADDRESS)
 endif
@@ -262,6 +295,10 @@ ifneq ($(CONFIG_SPL_TEXT_BASE),)
 LDFLAGS_u-boot-spl += -Ttext $(CONFIG_SPL_TEXT_BASE)
 endif
 
+# Linus' kernel sanity checking tool
+CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
+                  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
+
 # Location of a usable BFD library, where we define "usable" as
 # "built for ${HOST}, supports ${TARGET}".  Sensible values are
 # - When cross-compiling: the root of the cross-environment
@@ -309,6 +346,9 @@ $(obj)%.s:  %.S
 $(obj)%.o:     %.S
        $(CC)  $(ALL_AFLAGS) -o $@ $< -c
 $(obj)%.o:     %.c
+ifneq ($(CHECKSRC),0)
+       $(CHECK) $(CHECKFLAGS) $(ALL_CFLAGS) $<
+endif
        $(CC)  $(ALL_CFLAGS) -o $@ $< -c
 $(obj)%.i:     %.c
        $(CPP) $(ALL_CFLAGS) -o $@ $< -c