Changeset 758 for trunk/softs/tsar_boot/Makefile

Timestamp:

Jul 24, 2014, 3:19:18 PM (10 years ago)

Author:

cfuguet

Message:

tsar_boot: improving configuration infrastructure

• Using hard_config.h which respects the same sintax that the hard_config.h file of all TSAR platforms. This file can be then generated by the GIET-VM genmap tool or written manually.

• All peripheral drivers have been moved to a drivers directory and they are compiled as a static library. This allows GCC to only include in the final .ELF the object files of used peripherals and not all of them.

• Example hard_config.h and ldscripts have been introduced in the conf directory.

• Improving comments in all files

File:

• trunk/softs/tsar_boot/Makefile (modified) (7 diffs)

trunk/softs/tsar_boot/Makefile

@@ -1 @@
-# let the user have a default configuration (ie for PLATFORM_DIR and SOCLIB)
+# let the user have a default configuration (ie for PLATFORM_DIR)
 -include ./build.mk
 
+USE_DT     ?= 1
+DTS        ?= platform.dts
+
 MAKECMDGOALS ?= none
-RAMDISK      ?= 0
-SOCLIB       ?= 0
 
 ifneq ($(MAKECMDGOALS),$(filter $(MAKECMDGOALS),clean distclean clean-doc doc))
@@ -10 +11 @@
     $(error please define PLATFORM_DIR 'make PLATFORM_DIR=foo')
   else
-    ifeq ($(SOCLIB),1)
-      ifeq ($(RAMDISK),1)
-        DEFS+= -DUSE_RDK
-      else
-        DEFS+= -DUSE_BDV
-      endif
-      DTS=platform_soclib.dts
-      $(info Make for $(PLATFORM_DIR), SocLib variant)
-    else
-      DEFS+= -DUSE_SPI
-      DTS=platform_fpga.dts
-      $(info Make for $(PLATFORM_DIR), FPGA variant)
-    endif
+    $(info Make for $(PLATFORM_DIR))
   endif
+endif
+
+# Platform clock frequency (in KHz)
+ifdef SYSTEM_CLK
+    DEFS   := "-DRESET_SYSTEM_CLK=$(SYSTEM_CLK)"
 endif
 
@@ -30 +24 @@
 AS         := mipsel-unknown-elf-as
 DU         := mipsel-unknown-elf-objdump
+AR         := mipsel-unknown-elf-ar
 RM         := rm -rf
 ECHO       := @echo
@@ -38 +33 @@
 
 BUILD_DIR  := build
-SRCS_DIR   := src
-INCS_DIR   := include
 
 # =============================================================================
@@ -45 +38 @@
 # =============================================================================
 
-INCLUDE    += -I. -I$(INCS_DIR) -I$(PLATFORM_DIR)
-
-# =============================================================================
-# Paths of sources in another directories
-# =============================================================================
-
-VPATH      += $(SRCS_DIR)
-VPATH      += $(PLATFORM_DIR)
+INCLUDE    += -I. -Iinclude -Idrivers -I$(PLATFORM_DIR)
 
 # =============================================================================
@@ -58 +44 @@
 # =============================================================================
 
+VPATH      += src
+
 CFLAGS     := -Wall                \
               -mno-gpopt           \
               -ffreestanding       \
               -fomit-frame-pointer \
-              -mips32              \
-              -ggdb                \
-              -mlong-calls         \
+              -march=mips32        \
               -O2                  \
               -Werror
 
 C_SRCS     := reset_elf_loader.c \
+              reset_utils.c      \
+              reset_exception.c  \
               reset_ioc.c        \
-              reset_utils.c      \
-              reset_tty.c        \
-              reset_exception.c
-
-ifeq ($(SOCLIB),0)
-  C_SRCS   += sdcard.c spi.c
-endif
+              version.c
 
 S_SRCS     := reset.S
 
-OBJS       := $(subst .c,.o, $(notdir $(C_SRCS)))
-OBJS       += $(subst .S,.o, $(notdir $(S_SRCS)))
-OBJS       := $(addprefix $(BUILD_DIR)/, $(OBJS))
+OBJS       := $(addprefix $(BUILD_DIR)/,\
+                  $(subst .c,.o, $(notdir $(C_SRCS))) \
+                  $(subst .S,.o, $(notdir $(S_SRCS))))
 
 TARGET     := preloader.elf
 
-USE_DT     ?= 1
+# =============================================================================
+# Drivers library
+# =============================================================================
+
+VPATH      += drivers
+
+DRV_SRCS   := reset_tty.c        \
+              reset_inval.c      \
+              reset_sdc.c        \
+              reset_bdv.c        \
+              reset_rdk.c        \
+              sdcard.c           \
+              spi.c
+
+DRV_OBJS   := $(addprefix $(BUILD_DIR)/,\
+                  $(subst .c,.o, $(notdir $(DRV_SRCS))))
+
+DRV_LIB    := libdrivers.a
+
+# =============================================================================
+# Makefile rules
+# =============================================================================
+
+VPATH      += $(BUILD_DIR)
 
 all: $(TARGET)
 
-$(BUILD_DIR)/version.o: $(BUILD_DIR) $(OBJS) VERSION version.sh
-        $(ECHO) "[version.sh]"
-        ./version.sh > $(BUILD_DIR)/version.c
-        $(ECHO) "[   CC    ]     $(BUILD_DIR)/version.c"
-        $(CC) $(DEFS) $(CFLAGS) $(INCLUDE) -c -o $@ $(BUILD_DIR)/version.c
+$(BUILD_DIR)/$(DRV_LIB): $(BUILD_DIR) $(DRV_OBJS)
+        $(ECHO) "[   AR    ]     $(notdir $@)"
+        $(AR) rcs $@ $(DRV_OBJS)
+
+$(BUILD_DIR)/version.o: $(BUILD_DIR)/version.c
+        $(ECHO) "[   CC    ]     $(notdir $<)"
+        $(CC) $(DEFS) $(CFLAGS) $(INCLUDE) -c -o $@ $<
         $(DU) -D $@ > $@.txt
 
-$(TARGET): $(BUILD_DIR) $(BUILD_DIR)/version.o $(OBJS) $(PLATFORM_DIR)/ldscript $(BUILD_DIR)/platform.ld
+$(BUILD_DIR)/version.c: $(BUILD_DIR) version.sh VERSION
+        $(ECHO) "[version.sh]"
+        ./version.sh > $@
+
+$(TARGET): $(BUILD_DIR) $(OBJS) $(PLATFORM_DIR)/ldscript $(BUILD_DIR)/platform.ld $(BUILD_DIR)/$(DRV_LIB)
         $(ECHO) "[   LD    ]     $@"
-        $(LD) -o $@ -T $(PLATFORM_DIR)/ldscript $(OBJS) $(BUILD_DIR)/version.o
+        $(LD) -o $@ -T $(PLATFORM_DIR)/ldscript $(OBJS) -L$(BUILD_DIR) -ldrivers
         $(DU) -D $@ > $@.txt
 
@@ -112 +123 @@
 endif
 
-$(BUILD_DIR)/platform.dtb: $(DTS)
+$(BUILD_DIR)/platform.dtb: $(PLATFORM_DIR)/$(DTS)
         $(ECHO) "[   DTC   ]     $(notdir $<)"
         ${DTC} -O dtb -o $@ $< &> /dev/null