| 1 | # let the user have a default configuration (ie for PLATFORM_DIR) |
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| 2 | -include ./build.mk |
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| 3 | |
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| 4 | USE_DT ?= 1 |
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| 5 | DTS ?= platform.dts |
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| 6 | |
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| 7 | MAKECMDGOALS ?= none |
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| 8 | |
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| 9 | ifneq ($(MAKECMDGOALS),$(filter $(MAKECMDGOALS),clean distclean clean-doc doc)) |
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| 10 | ifndef PLATFORM_DIR |
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| 11 | $(error please define PLATFORM_DIR 'make PLATFORM_DIR=foo') |
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| 12 | else |
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| 13 | $(info Make for $(PLATFORM_DIR)) |
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| 14 | endif |
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| 15 | endif |
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| 16 | |
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| 17 | # Platform clock frequency (in KHz) |
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| 18 | ifdef SYSTEM_CLK |
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| 19 | DEFS := "-DRESET_SYSTEM_CLK=$(SYSTEM_CLK)" |
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| 20 | endif |
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| 21 | |
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| 22 | LD := mipsel-unknown-elf-ld |
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| 23 | CC := mipsel-unknown-elf-gcc |
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| 24 | AS := mipsel-unknown-elf-as |
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| 25 | DU := mipsel-unknown-elf-objdump |
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| 26 | AR := mipsel-unknown-elf-ar |
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| 27 | RM := rm -rf |
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| 28 | ECHO := @echo |
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| 29 | MKDIR := mkdir |
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| 30 | DTC := dtc |
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| 31 | HEXDUMP := hexdump |
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| 32 | DOXYGEN := doxygen |
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| 33 | |
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| 34 | BUILD_DIR := build |
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| 35 | |
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| 36 | # ============================================================================= |
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| 37 | # Include files paths |
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| 38 | # ============================================================================= |
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| 39 | |
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| 40 | INCLUDE += -I. -Iinclude -Idrivers -I$(PLATFORM_DIR) |
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| 41 | |
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| 42 | # ============================================================================= |
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| 43 | # Object files |
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| 44 | # ============================================================================= |
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| 45 | |
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| 46 | VPATH += src |
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| 47 | |
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| 48 | CFLAGS := -Wall \ |
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| 49 | -mno-gpopt \ |
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| 50 | -ffreestanding \ |
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| 51 | -fomit-frame-pointer \ |
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| 52 | -march=mips32 \ |
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| 53 | -O2 \ |
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| 54 | -Werror |
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| 55 | |
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| 56 | C_SRCS := reset_elf_loader.c \ |
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| 57 | reset_utils.c \ |
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| 58 | reset_exception.c \ |
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| 59 | reset_ioc.c \ |
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| 60 | version.c |
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| 61 | |
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| 62 | S_SRCS := reset.S |
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| 63 | |
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| 64 | OBJS := $(addprefix $(BUILD_DIR)/,\ |
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| 65 | $(subst .c,.o, $(notdir $(C_SRCS))) \ |
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| 66 | $(subst .S,.o, $(notdir $(S_SRCS)))) |
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| 67 | |
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| 68 | TARGET := preloader.elf |
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| 69 | |
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| 70 | # ============================================================================= |
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| 71 | # Drivers library |
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| 72 | # ============================================================================= |
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| 73 | |
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| 74 | VPATH += drivers |
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| 75 | |
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| 76 | DRV_SRCS := reset_tty.c \ |
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| 77 | reset_inval.c \ |
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| 78 | reset_sdc.c \ |
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| 79 | reset_bdv.c \ |
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| 80 | reset_rdk.c \ |
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| 81 | sdcard.c \ |
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| 82 | spi.c |
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| 83 | |
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| 84 | DRV_OBJS := $(addprefix $(BUILD_DIR)/,\ |
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| 85 | $(subst .c,.o, $(notdir $(DRV_SRCS)))) |
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| 86 | |
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| 87 | DRV_LIB := libdrivers.a |
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| 88 | |
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| 89 | # ============================================================================= |
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| 90 | # Makefile rules |
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| 91 | # ============================================================================= |
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| 92 | |
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| 93 | VPATH += $(BUILD_DIR) |
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| 94 | |
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| 95 | all: $(TARGET) |
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| 96 | |
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| 97 | $(BUILD_DIR)/$(DRV_LIB): $(BUILD_DIR) $(DRV_OBJS) |
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| 98 | $(ECHO) "[ AR ] $(notdir $@)" |
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| 99 | $(AR) rcs $@ $(DRV_OBJS) |
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| 100 | |
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| 101 | $(BUILD_DIR)/version.o: $(BUILD_DIR)/version.c |
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| 102 | $(ECHO) "[ CC ] $(notdir $<)" |
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| 103 | $(CC) $(DEFS) $(CFLAGS) $(INCLUDE) -c -o $@ $< |
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| 104 | $(DU) -D $@ > $@.txt |
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| 105 | |
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| 106 | $(BUILD_DIR)/version.c: $(BUILD_DIR) version.sh VERSION |
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| 107 | $(ECHO) "[version.sh]" |
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| 108 | ./version.sh > $@ |
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| 109 | |
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| 110 | $(TARGET): $(BUILD_DIR) $(OBJS) $(PLATFORM_DIR)/ldscript $(BUILD_DIR)/platform.ld $(BUILD_DIR)/$(DRV_LIB) |
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| 111 | $(ECHO) "[ LD ] $@" |
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| 112 | $(LD) -o $@ -T $(PLATFORM_DIR)/ldscript $(OBJS) -L$(BUILD_DIR) -ldrivers |
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| 113 | $(DU) -D $@ > $@.txt |
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| 114 | |
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| 115 | ifeq ($(USE_DT), 1) |
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| 116 | $(BUILD_DIR)/platform.ld: $(BUILD_DIR)/platform.dtb |
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| 117 | $(ECHO) "[ HEXDUMP ] $(notdir $<)" |
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| 118 | $(HEXDUMP) -v -e '"BYTE(0x" 1/1 "%02X" ")\n"' $< > $@ |
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| 119 | else |
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| 120 | $(BUILD_DIR)/platform.ld: |
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| 121 | $(ECHO) "[ TOUCH ] $(notdir $@)" |
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| 122 | touch $@ |
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| 123 | endif |
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| 124 | |
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| 125 | $(BUILD_DIR)/platform.dtb: $(PLATFORM_DIR)/$(DTS) |
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| 126 | $(ECHO) "[ DTC ] $(notdir $<)" |
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| 127 | ${DTC} -O dtb -o $@ $< &> /dev/null |
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| 128 | |
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| 129 | $(BUILD_DIR): |
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| 130 | $(MKDIR) $@ |
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| 131 | |
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| 132 | doc: Doxyfile |
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| 133 | $(DOXYGEN) Doxyfile |
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| 134 | |
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| 135 | clean: |
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| 136 | $(RM) $(TARGET).txt $(TARGET) *~ $(BUILD_DIR) |
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| 137 | |
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| 138 | clean-doc: |
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| 139 | $(RM) doc |
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| 140 | |
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| 141 | distclean: clean clean-doc |
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| 142 | |
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| 143 | # ============================================================================= |
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| 144 | # Implicit makefile rules |
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| 145 | |
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| 146 | $(BUILD_DIR)/%.o: %.c |
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| 147 | $(ECHO) "[ CC ] $(notdir $<)" |
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| 148 | $(CC) $(DEFS) $(CFLAGS) $(INCLUDE) -c -o $@ $< |
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| 149 | $(DU) -D $@ > $@.txt |
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| 150 | |
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| 151 | $(BUILD_DIR)/%.o: %.S |
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| 152 | $(ECHO) "[ AS ] $(notdir $<)" |
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| 153 | $(CC) $(DEFS) ${INCLUDE} -g -mips32 -c -o $@ $< |
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| 154 | $(DU) -D $@ > $@.txt |
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| 155 | |
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