| 1 | # let the user have a default configuration (ie for HARD_CONFIG_PATH)
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| 2 | -include ./build.mk
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| 3 |
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| 4 | USE_DT ?= 0
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| 5 | DTS ?= platform.dts
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| 6 | HARD_CONFIG_PATH ?= ../../../almos-mkh
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| 7 | MAKECMDGOALS ?= none
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| 8 | BS_PROC ?= 0
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| 9 | USE_32BIT ?= 0
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| 10 | BLOCK_SIZE ?= 512
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| 11 |
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| 12 | MAKECMDGOALS ?= none
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| 13 | BUILD_DIR ?= build
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| 14 |
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| 15 | ifneq ($(MAKECMDGOALS),$(filter $(MAKECMDGOALS),clean distclean clean-doc doc))
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| 16 | ifndef HARD_CONFIG_PATH
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| 17 | $(error please define HARD_CONFIG_PATH 'make HARD_CONFIG_PATH=foo')
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| 18 | else
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| 19 | $(info Make for $(HARD_CONFIG_PATH))
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| 20 | endif
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| 21 | endif
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| 22 |
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| 23 | # Platform clock frequency (in KHz)
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| 24 | ifdef SYSTEM_CLK
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| 25 | DEFS := "-DRESET_SYSTEM_CLK=$(SYSTEM_CLK)"
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| 26 | endif
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| 27 | DEFS := -DBS_PROC=$(BS_PROC) -DBLOCK_SIZE=$(BLOCK_SIZE) -DUSE_32BIT=$(USE_32BIT)
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| 28 |
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| 29 | LD := mipsel-unknown-elf-ld
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| 30 | CC := mipsel-unknown-elf-gcc
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| 31 | AS := mipsel-unknown-elf-as
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| 32 | DU := mipsel-unknown-elf-objdump
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| 33 | AR := mipsel-unknown-elf-ar
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| 34 | RM := rm -rf
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| 35 | SED := sed
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| 36 | ECHO := @echo
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| 37 | MKDIR := mkdir
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| 38 | DTC := dtc
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| 39 | HEXDUMP := hexdump
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| 40 | DOXYGEN := doxygen
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| 41 |
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| 42 | HARD_CONFIG:= $(HARD_CONFIG_PATH)/hard_config.h
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| 43 |
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| 44 | # =============================================================================
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| 45 | # Include files paths
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| 46 | # =============================================================================
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| 47 |
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| 48 | INCLUDE += -I. -Iinclude -Idrivers -I$(HARD_CONFIG_PATH)
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| 49 |
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| 50 | # =============================================================================
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| 51 | # Object files
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| 52 | # =============================================================================
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| 53 |
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| 54 | VPATH += src
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| 55 |
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| 56 | CFLAGS := -Wall \
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| 57 | -mno-gpopt \
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| 58 | -ffreestanding \
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| 59 | -fomit-frame-pointer \
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| 60 | -march=mips32 \
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| 61 | -O2 \
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| 62 | -Werror
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| 63 |
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| 64 | C_SRCS := reset_elf_loader.c \
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| 65 | reset_utils.c \
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| 66 | reset_exception.c \
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| 67 | reset_ioc.c \
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| 68 | version.c
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| 69 |
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| 70 | S_SRCS := reset.S
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| 71 |
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| 72 | OBJS := $(addprefix $(BUILD_DIR)/,\
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| 73 | $(subst .c,.o, $(notdir $(C_SRCS))) \
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| 74 | $(subst .S,.o, $(notdir $(S_SRCS))))
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| 75 | # @QM Defining preloader.elf relatively to the build directory, so as to support parallel compilation with
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| 76 | # different build directories
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| 77 | TARGET := $(BUILD_DIR)/../preloader.elf
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| 78 |
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| 79 | # =============================================================================
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| 80 | # Drivers library
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| 81 | # =============================================================================
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| 82 |
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| 83 | VPATH += drivers
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| 84 |
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| 85 | DRV_SRCS := reset_tty.c \
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| 86 | reset_inval.c \
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| 87 | reset_ioc_spi.c \
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| 88 | reset_ioc_bdv.c \
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| 89 | reset_ioc_rdk.c \
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| 90 | reset_ioc_hba.c \
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| 91 | reset_ioc_sdc.c \
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| 92 | spi.c
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| 93 |
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| 94 | DRV_OBJS := $(addprefix $(BUILD_DIR)/,\
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| 95 | $(subst .c,.o, $(notdir $(DRV_SRCS))))
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| 96 |
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| 97 | DRV_LIB := libdrivers.a
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| 98 |
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| 99 | # =============================================================================
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| 100 | # Makefile rules
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| 101 | # =============================================================================
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| 102 |
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| 103 | VPATH += $(BUILD_DIR)
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| 104 |
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| 105 | all: $(TARGET)
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| 106 |
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| 107 | $(DRV_OBJS): $(HARD_CONFIG)
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| 108 | $(OBJS): $(HARD_CONFIG)
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| 109 |
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| 110 | $(BUILD_DIR)/$(DRV_LIB): $(BUILD_DIR) $(DRV_OBJS)
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| 111 | $(ECHO) "[ AR ] $(notdir $@)"
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| 112 | $(AR) rcs $@ $(DRV_OBJS)
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| 113 |
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| 114 | $(BUILD_DIR)/version.o: $(BUILD_DIR)/version.c
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| 115 | $(ECHO) "[ CC ] $(notdir $<)"
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| 116 | $(CC) $(DEFS) $(CFLAGS) $(INCLUDE) -c -o $@ $<
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| 117 | $(DU) -D $@ > $@.txt
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| 118 |
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| 119 | $(BUILD_DIR)/version.c: $(BUILD_DIR) version.sh VERSION
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| 120 | $(ECHO) "[version.sh]"
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| 121 | ./version.sh > $@
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| 122 |
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| 123 | $(BUILD_DIR)/preloader.ld: preloader.ld.in $(HARD_CONFIG)
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| 124 | $(ECHO) "[ CC ] $(notdir $<)"
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| 125 | $(CC) -x c -P -E -DUSE_DT=$(USE_DT) $(INCLUDE) $< -o $@
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| 126 |
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| 127 | $(TARGET): $(BUILD_DIR) $(OBJS) $(BUILD_DIR)/preloader.ld $(BUILD_DIR)/$(DRV_LIB)
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| 128 | $(ECHO) "[ LD ] $@"
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| 129 | $(LD) -o $@ -T $(BUILD_DIR)/preloader.ld $(OBJS) -L$(BUILD_DIR) -ldrivers
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| 130 | $(DU) -D $@ > $@.txt
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| 131 |
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| 132 | ifeq ($(USE_DT), 1)
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| 133 | $(TARGET): $(BUILD_DIR)/platform.ld
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| 134 |
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| 135 | $(BUILD_DIR)/platform.dtb: $(HARD_CONFIG_PATH)/$(DTS)
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| 136 | $(ECHO) "[ DTC ] $(notdir $<)"
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| 137 | $(DTC) -O dtb -o $@ $< > /dev/null 2>&1
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| 138 |
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| 139 | $(BUILD_DIR)/platform.ld: $(BUILD_DIR)/platform.dtb
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| 140 | $(ECHO) "[ HEXDUMP ] $(notdir $<)"
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| 141 | $(HEXDUMP) -v -e '"BYTE(0x" 1/1 "%02X" ")\n"' $< > $@
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| 142 | endif
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| 143 |
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| 144 | $(BUILD_DIR):
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| 145 | $(MKDIR) $@
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| 146 |
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| 147 | doc: Doxyfile
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| 148 | $(DOXYGEN) Doxyfile
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| 149 |
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| 150 | clean:
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| 151 | $(RM) $(TARGET).txt $(TARGET) *~ $(BUILD_DIR)
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| 152 |
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| 153 | clean-doc:
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| 154 | $(RM) doc
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| 155 |
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| 156 | distclean: clean clean-doc
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| 157 |
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| 158 | # =============================================================================
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| 159 | # Implicit makefile rules
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| 160 |
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| 161 | $(BUILD_DIR)/%.o: %.c
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| 162 | $(ECHO) "[ CC ] $(notdir $<)"
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| 163 | $(CC) $(DEFS) $(CFLAGS) $(INCLUDE) -c -o $@ $<
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| 164 | $(DU) -D $@ > $@.txt
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| 165 |
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| 166 | $(BUILD_DIR)/%.o: %.S
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| 167 | $(ECHO) "[ AS ] $(notdir $<)"
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| 168 | $(CC) $(DEFS) ${INCLUDE} -g -mips32 -c -o $@ $<
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| 169 | $(DU) -D $@ > $@.txt
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| 170 |
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