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1#
2# Copyright (C) 2016 The Android Open Source Project
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#      http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15#
16
17M3DEBUG ?= m3debug
18
19ifneq ($(CPU),cortexm4)
20        $(error "stm32 cplatform only supports Cortex-M4 CPUs")
21endif
22
23BL_FILE = $(OUT)/bl.unchecked.bin
24OS_FILE = $(OUT)/os.checked.bin
25
26DELIVERABLES += showsizes
27FLAGS += -I. -fno-unwind-tables -fstack-reuse=all -ffunction-sections -fdata-sections
28FLAGS += -Wl,--gc-sections -nostartfiles
29FLAGS += -nostdlib
30
31#platform bootloader
32SRCS_bl += os/platform/$(PLATFORM)/bl.c
33
34#platform runtime
35SRCS_os +=  os/platform/$(PLATFORM)/crt_$(PLATFORM).c
36
37#platform drivers
38SRCS_os += os/platform/$(PLATFORM)/platform.c \
39	os/platform/$(PLATFORM)/usart.c \
40	os/platform/$(PLATFORM)/gpio.c \
41	os/platform/$(PLATFORM)/pwr.c \
42	os/platform/$(PLATFORM)/wdt.c \
43	os/platform/$(PLATFORM)/i2c.c \
44	os/platform/$(PLATFORM)/exti.c \
45	os/platform/$(PLATFORM)/syscfg.c \
46	os/platform/$(PLATFORM)/spi.c \
47	os/platform/$(PLATFORM)/rtc.c \
48	os/platform/$(PLATFORM)/mpu.c \
49	os/platform/$(PLATFORM)/dma.c \
50	os/platform/$(PLATFORM)/crc.c \
51	os/platform/$(PLATFORM)/hostIntf.c \
52	os/platform/$(PLATFORM)/apInt.c \
53	os/platform/$(PLATFORM)/eeData.c
54
55
56#platform drivers for bootloader
57SRCS_bl += os/platform/$(PLATFORM)/pwr.c os/platform/$(PLATFORM)/gpio.c
58
59#extra deps
60DEPS += $(wildcard os/platform/$(PLATFORM)/inc/plat/*.h)
61DEPS += $(wildcard os/platform/$(PLATFORM)/inc/plat/cmsis/*.h)
62
63#linker script
64LKR_os = os/platform/$(PLATFORM)/lkr/$(CHIP).os.lkr
65LKR_bl = os/platform/$(PLATFORM)/lkr/$(CHIP).bl.lkr
66OSFLAGS_os += -Wl,-T $(LKR_os)
67OSFLAGS_bl += -Wl,-T $(LKR_bl)
68DEPS += $(LKR_os) $(LKR_bl)
69
70#platform flags
71PLATFORM_HAS_HARDWARE_CRC = true
72FLAGS += -DPLATFORM_HW_VER=0
73
74#platform-specific rules
75OBJCOPY_PARAMS = -I elf32-littlearm -O binary
76
77$(OUT)/bl.%.bin : $(OUT)/bl.%.elf
78	$(OBJCOPY) -j .bl -j .data -j .eedata $(OBJCOPY_PARAMS) $< $@
79
80$(OUT)/os.%.bin : $(OUT)/os.%.elf
81	$(OBJCOPY) -j .data -j .text $(OBJCOPY_PARAMS) $< $@
82
83showsizes: $(OUT)/os.unchecked.elf
84	os/platform/$(PLATFORM)/misc/showsizes.sh $<
85
86$(info Included STM32 platfrom)
87