1#
2# Copyright (c) 2013-2023, Arm Limited and Contributors. All rights reserved.
3#
4# SPDX-License-Identifier: BSD-3-Clause
5#
6
7include lib/libfdt/libfdt.mk
8include lib/xlat_tables_v2/xlat_tables.mk
9
10PLAT_INCLUDES		:=	-Iplat/rpi/common/include		\
11				-Iplat/rpi/rpi3/include
12
13PLAT_BL_COMMON_SOURCES	:=	drivers/ti/uart/aarch64/16550_console.S	\
14				drivers/arm/pl011/aarch64/pl011_console.S \
15				drivers/gpio/gpio.c			\
16				drivers/delay_timer/delay_timer.c	\
17				drivers/rpi3/gpio/rpi3_gpio.c		\
18				plat/rpi/common/aarch64/plat_helpers.S	\
19				plat/rpi/common/rpi3_common.c		\
20				${XLAT_TABLES_LIB_SRCS}
21
22BL1_SOURCES		+=	drivers/io/io_fip.c			\
23				drivers/io/io_memmap.c			\
24				drivers/io/io_storage.c			\
25				lib/cpus/aarch64/cortex_a53.S		\
26				plat/common/aarch64/platform_mp_stack.S	\
27				plat/rpi/rpi3/rpi3_bl1_setup.c		\
28				plat/rpi/common/rpi3_io_storage.c	\
29				drivers/rpi3/mailbox/rpi3_mbox.c	\
30				plat/rpi/rpi3/rpi_mbox_board.c
31
32BL2_SOURCES		+=	common/desc_image_load.c		\
33				drivers/io/io_fip.c			\
34				drivers/io/io_memmap.c			\
35				drivers/io/io_storage.c			\
36				drivers/delay_timer/generic_delay_timer.c \
37				drivers/io/io_block.c			\
38				drivers/mmc/mmc.c			\
39				drivers/rpi3/sdhost/rpi3_sdhost.c	\
40				plat/common/aarch64/platform_mp_stack.S	\
41				plat/rpi/rpi3/aarch64/rpi3_bl2_mem_params_desc.c \
42				plat/rpi/rpi3/rpi3_bl2_setup.c		\
43				plat/rpi/common/rpi3_image_load.c	\
44				plat/rpi/common/rpi3_io_storage.c
45
46BL31_SOURCES		+=	lib/cpus/aarch64/cortex_a53.S		\
47				plat/common/plat_gicv2.c		\
48				plat/common/plat_psci_common.c		\
49				plat/rpi/rpi3/rpi3_bl31_setup.c		\
50				plat/rpi/common/rpi3_pm.c		\
51				plat/rpi/common/rpi3_topology.c		\
52				${LIBFDT_SRCS}
53
54# Tune compiler for Cortex-A53
55ifeq ($(notdir $(CC)),armclang)
56    TF_CFLAGS_aarch64	+=	-mcpu=cortex-a53
57else ifneq ($(findstring clang,$(notdir $(CC))),)
58    TF_CFLAGS_aarch64	+=	-mcpu=cortex-a53
59else
60    TF_CFLAGS_aarch64	+=	-mtune=cortex-a53
61endif
62
63# Platform Makefile target
64# ------------------------
65
66RPI3_BL1_PAD_BIN	:=	${BUILD_PLAT}/bl1_pad.bin
67RPI3_ARMSTUB8_BIN	:=	${BUILD_PLAT}/armstub8.bin
68
69# Add new default target when compiling this platform
70all: armstub
71
72# This target concatenates BL1 and the FIP so that the base addresses match the
73# ones defined in the memory map
74armstub: bl1 fip
75	@echo "  CAT     $@"
76	${Q}cp ${BUILD_PLAT}/bl1.bin ${RPI3_BL1_PAD_BIN}
77	${Q}truncate --size=131072 ${RPI3_BL1_PAD_BIN}
78	${Q}cat ${RPI3_BL1_PAD_BIN} ${BUILD_PLAT}/fip.bin > ${RPI3_ARMSTUB8_BIN}
79	@${ECHO_BLANK_LINE}
80	@echo "Built $@ successfully"
81	@${ECHO_BLANK_LINE}
82
83# Build config flags
84# ------------------
85
86# Enable all errata workarounds for Cortex-A53
87ERRATA_A53_826319		:= 1
88ERRATA_A53_835769		:= 1
89ERRATA_A53_836870		:= 1
90ERRATA_A53_843419		:= 1
91ERRATA_A53_855873		:= 1
92
93WORKAROUND_CVE_2017_5715	:= 0
94
95# Disable stack protector by default
96ENABLE_STACK_PROTECTOR	 	:= 0
97
98# Reset to BL31 isn't supported
99RESET_TO_BL31			:= 0
100
101# Have different sections for code and rodata
102SEPARATE_CODE_AND_RODATA	:= 1
103
104# Use Coherent memory
105USE_COHERENT_MEM		:= 1
106
107# Platform build flags
108# --------------------
109
110# BL33 images are in AArch64 by default
111RPI3_BL33_IN_AARCH32		:= 0
112
113# Assume that BL33 isn't the Linux kernel by default
114RPI3_DIRECT_LINUX_BOOT		:= 0
115
116# UART to use at runtime. -1 means the runtime UART is disabled.
117# Any other value means the default UART will be used.
118RPI3_RUNTIME_UART		:= -1
119
120# Use normal memory mapping for ROM, FIP, SRAM and DRAM
121RPI3_USE_UEFI_MAP		:= 0
122
123# BL32 location
124RPI3_BL32_RAM_LOCATION	:= tdram
125ifeq (${RPI3_BL32_RAM_LOCATION}, tsram)
126  RPI3_BL32_RAM_LOCATION_ID = SEC_SRAM_ID
127else ifeq (${RPI3_BL32_RAM_LOCATION}, tdram)
128  RPI3_BL32_RAM_LOCATION_ID = SEC_DRAM_ID
129else
130  $(error "Unsupported RPI3_BL32_RAM_LOCATION value")
131endif
132
133# Process platform flags
134# ----------------------
135
136$(eval $(call add_define,RPI3_BL32_RAM_LOCATION_ID))
137$(eval $(call add_define,RPI3_BL33_IN_AARCH32))
138$(eval $(call add_define,RPI3_DIRECT_LINUX_BOOT))
139ifdef RPI3_PRELOADED_DTB_BASE
140$(eval $(call add_define,RPI3_PRELOADED_DTB_BASE))
141endif
142$(eval $(call add_define,RPI3_RUNTIME_UART))
143$(eval $(call add_define,RPI3_USE_UEFI_MAP))
144
145# Verify build config
146# -------------------
147#
148ifneq (${RPI3_DIRECT_LINUX_BOOT}, 0)
149  ifndef RPI3_PRELOADED_DTB_BASE
150    $(error Error: RPI3_PRELOADED_DTB_BASE needed if RPI3_DIRECT_LINUX_BOOT=1)
151  endif
152endif
153
154ifneq (${RESET_TO_BL31}, 0)
155  $(error Error: rpi3 needs RESET_TO_BL31=0)
156endif
157
158ifeq (${ARCH},aarch32)
159  $(error Error: AArch32 not supported on rpi3)
160endif
161
162ifneq ($(ENABLE_STACK_PROTECTOR), 0)
163PLAT_BL_COMMON_SOURCES	+=	drivers/rpi3/rng/rpi3_rng.c		\
164				plat/rpi/common/rpi3_stack_protector.c
165endif
166
167ifeq (${SPD},opteed)
168BL2_SOURCES	+=							\
169		lib/optee/optee_utils.c
170endif
171
172# Add the build options to pack Trusted OS Extra1 and Trusted OS Extra2 images
173# in the FIP if the platform requires.
174ifneq ($(BL32_EXTRA1),)
175$(eval $(call TOOL_ADD_IMG,BL32_EXTRA1,--tos-fw-extra1))
176endif
177ifneq ($(BL32_EXTRA2),)
178$(eval $(call TOOL_ADD_IMG,BL32_EXTRA2,--tos-fw-extra2))
179endif
180
181ifneq (${TRUSTED_BOARD_BOOT},0)
182
183    include drivers/auth/mbedtls/mbedtls_crypto.mk
184    include drivers/auth/mbedtls/mbedtls_x509.mk
185
186    AUTH_SOURCES	:=	drivers/auth/auth_mod.c			\
187				drivers/auth/crypto_mod.c		\
188				drivers/auth/img_parser_mod.c		\
189				drivers/auth/tbbr/tbbr_cot_common.c
190
191    BL1_SOURCES		+=	${AUTH_SOURCES}				\
192				bl1/tbbr/tbbr_img_desc.c		\
193				plat/common/tbbr/plat_tbbr.c		\
194				plat/rpi/common/rpi3_trusted_boot.c    	\
195				plat/rpi/common/rpi3_rotpk.S		\
196				drivers/auth/tbbr/tbbr_cot_bl1.c
197
198    BL2_SOURCES		+=	${AUTH_SOURCES}				\
199				plat/common/tbbr/plat_tbbr.c		\
200				plat/rpi/common/rpi3_trusted_boot.c    	\
201				plat/rpi/common/rpi3_rotpk.S		\
202				drivers/auth/tbbr/tbbr_cot_bl2.c
203
204    ROT_KEY             = $(BUILD_PLAT)/rot_key.pem
205    ROTPK_HASH          = $(BUILD_PLAT)/rotpk_sha256.bin
206
207    $(eval $(call add_define_val,ROTPK_HASH,'"$(ROTPK_HASH)"'))
208
209    $(BUILD_PLAT)/bl1/rpi3_rotpk.o: $(ROTPK_HASH)
210    $(BUILD_PLAT)/bl2/rpi3_rotpk.o: $(ROTPK_HASH)
211
212    certificates: $(ROT_KEY)
213
214    $(ROT_KEY): | $(BUILD_PLAT)
215	@echo "  OPENSSL $@"
216	$(Q)${OPENSSL_BIN_PATH}/openssl genrsa 2048 > $@ 2>/dev/null
217
218    $(ROTPK_HASH): $(ROT_KEY)
219	@echo "  OPENSSL $@"
220	$(Q)${OPENSSL_BIN_PATH}/openssl rsa -in $< -pubout -outform DER 2>/dev/null |\
221	${OPENSSL_BIN_PATH}/openssl dgst -sha256 -binary > $@ 2>/dev/null
222endif
223