| 1 | # let the user have a default configuration (ie for PLATFORM_DIR and SOCLIB) |
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| 2 | -include ./build.mk |
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| 3 | |
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| 4 | MAKECMDGOALS ?= none |
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| 5 | RAMDISK ?= 0 |
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| 6 | SOCLIB ?= 0 |
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| 7 | |
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| 8 | ifneq ($(MAKECMDGOALS),$(filter $(MAKECMDGOALS),clean distclean clean-doc doc)) |
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| 9 | ifndef PLATFORM_DIR |
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| 10 | $(error please define PLATFORM_DIR 'make PLATFORM_DIR=foo') |
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| 11 | else |
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| 12 | ifeq ($(SOCLIB),1) |
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| 13 | ifeq ($(RAMDISK),1) |
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| 14 | DEFS+= -DUSE_RDK |
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| 15 | else |
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| 16 | DEFS+= -DUSE_BDV |
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| 17 | endif |
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| 18 | DTS=platform_soclib.dts |
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| 19 | $(info Make for $(PLATFORM_DIR), SocLib variant) |
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| 20 | else |
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| 21 | DEFS+= -DUSE_SPI |
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| 22 | DTS=platform_fpga.dts |
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| 23 | $(info Make for $(PLATFORM_DIR), FPGA variant) |
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| 24 | endif |
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| 25 | endif |
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| 26 | endif |
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| 27 | |
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| 28 | LD := mipsel-unknown-elf-ld |
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| 29 | CC := mipsel-unknown-elf-gcc |
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| 30 | AS := mipsel-unknown-elf-as |
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| 31 | DU := mipsel-unknown-elf-objdump |
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| 32 | RM := rm -rf |
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| 33 | ECHO := @echo |
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| 34 | MKDIR := mkdir |
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| 35 | DTC := dtc |
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| 36 | HEXDUMP := hexdump |
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| 37 | DOXYGEN := doxygen |
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| 38 | |
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| 39 | BUILD_DIR := build |
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| 40 | SRCS_DIR := src |
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| 41 | INCS_DIR := include |
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| 42 | |
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| 43 | # ============================================================================= |
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| 44 | # Include files paths |
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| 45 | # ============================================================================= |
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| 46 | |
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| 47 | INCLUDE += -I. -I$(INCS_DIR) -I$(PLATFORM_DIR) |
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| 48 | |
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| 49 | # ============================================================================= |
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| 50 | # Paths of sources in another directories |
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| 51 | # ============================================================================= |
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| 52 | |
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| 53 | VPATH += $(SRCS_DIR) |
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| 54 | VPATH += $(PLATFORM_DIR) |
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| 55 | |
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| 56 | # ============================================================================= |
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| 57 | # Object files |
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| 58 | # ============================================================================= |
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| 59 | |
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| 60 | CFLAGS := -Wall \ |
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| 61 | -mno-gpopt \ |
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| 62 | -ffreestanding \ |
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| 63 | -fomit-frame-pointer \ |
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| 64 | -mips32 \ |
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| 65 | -ggdb \ |
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| 66 | -mlong-calls \ |
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| 67 | -O2 \ |
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| 68 | -Werror |
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| 69 | |
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| 70 | C_SRCS := reset_elf_loader.c \ |
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| 71 | reset_ioc.c \ |
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| 72 | reset_utils.c \ |
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| 73 | reset_tty.c \ |
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| 74 | reset_exception.c |
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| 75 | |
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| 76 | ifeq ($(SOCLIB),0) |
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| 77 | C_SRCS += sdcard.c spi.c |
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| 78 | endif |
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| 79 | |
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| 80 | S_SRCS := reset.S |
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| 81 | |
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| 82 | OBJS := $(subst .c,.o, $(notdir $(C_SRCS))) |
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| 83 | OBJS += $(subst .S,.o, $(notdir $(S_SRCS))) |
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| 84 | OBJS := $(addprefix $(BUILD_DIR)/, $(OBJS)) |
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| 85 | |
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| 86 | TARGET := preloader.elf |
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| 87 | |
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| 88 | USE_DT ?= 1 |
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| 89 | |
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| 90 | all: $(TARGET) |
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| 91 | |
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| 92 | $(BUILD_DIR)/version.o: $(BUILD_DIR) $(OBJS) version version.sh |
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| 93 | $(ECHO) "[version.sh]" |
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| 94 | ./version.sh > $(BUILD_DIR)/version.c |
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| 95 | $(ECHO) "[ CC ] $(BUILD_DIR)/version.c" |
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| 96 | $(CC) $(DEFS) $(CFLAGS) $(INCLUDE) -c -o $@ $(BUILD_DIR)/version.c |
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| 97 | $(DU) -D $@ > $@.txt |
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| 98 | |
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| 99 | $(TARGET): $(BUILD_DIR) $(BUILD_DIR)/version.o $(OBJS) $(PLATFORM_DIR)/ldscript $(BUILD_DIR)/platform.ld |
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| 100 | $(ECHO) "[ LD ] $@" |
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| 101 | $(LD) -o $@ -T $(PLATFORM_DIR)/ldscript $(OBJS) $(BUILD_DIR)/version.o |
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| 102 | $(DU) -D $@ > $@.txt |
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| 103 | |
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| 104 | ifeq ($(USE_DT), 1) |
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| 105 | $(BUILD_DIR)/platform.ld: $(BUILD_DIR)/platform.dtb |
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| 106 | $(ECHO) "[ HEXDUMP ] $(notdir $<)" |
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| 107 | $(HEXDUMP) -v -e '"BYTE(0x" 1/1 "%02X" ")\n"' $< > $@ |
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| 108 | else |
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| 109 | $(BUILD_DIR)/platform.ld: |
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| 110 | $(ECHO) "[ TOUCH ] $(notdir $@)" |
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| 111 | touch $@ |
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| 112 | endif |
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| 113 | |
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| 114 | $(BUILD_DIR)/platform.dtb: $(DTS) |
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| 115 | $(ECHO) "[ DTC ] $(notdir $<)" |
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| 116 | ${DTC} -O dtb -o $@ $< &> /dev/null |
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| 117 | |
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| 118 | $(BUILD_DIR): |
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| 119 | $(MKDIR) $@ |
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| 120 | |
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| 121 | doc: Doxyfile |
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| 122 | $(DOXYGEN) Doxyfile |
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| 123 | |
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| 124 | clean: |
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| 125 | $(RM) $(TARGET).txt $(TARGET) *~ $(BUILD_DIR) |
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| 126 | |
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| 127 | clean-doc: |
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| 128 | $(RM) doc |
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| 129 | |
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| 130 | distclean: clean clean-doc |
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| 131 | |
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| 132 | # ============================================================================= |
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| 133 | # Implicit makefile rules |
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| 134 | |
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| 135 | $(BUILD_DIR)/%.o: %.c |
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| 136 | $(ECHO) "[ CC ] $(notdir $<)" |
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| 137 | $(CC) $(DEFS) $(CFLAGS) $(INCLUDE) -c -o $@ $< |
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| 138 | $(DU) -D $@ > $@.txt |
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| 139 | |
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| 140 | $(BUILD_DIR)/%.o: %.S |
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| 141 | $(ECHO) "[ AS ] $(notdir $<)" |
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| 142 | $(CC) $(DEFS) ${INCLUDE} -g -mips32 -c -o $@ $< |
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| 143 | $(DU) -D $@ > $@.txt |
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| 144 | |
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| 145 | .SILENT: |
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