1#
2# Copyright (c) 2013-2024, 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				plat/rpi/common/rpi3_console_dual.c	\
21				${XLAT_TABLES_LIB_SRCS}
22
23BL1_SOURCES		+=	drivers/io/io_fip.c			\
24				drivers/io/io_memmap.c			\
25				drivers/io/io_storage.c			\
26				lib/cpus/aarch64/cortex_a53.S		\
27				plat/common/aarch64/platform_mp_stack.S	\
28				plat/rpi/rpi3/rpi3_bl1_setup.c		\
29				plat/rpi/common/rpi3_io_storage.c	\
30				drivers/rpi3/mailbox/rpi3_mbox.c	\
31				plat/rpi/rpi3/rpi_mbox_board.c
32
33BL2_SOURCES		+=	common/desc_image_load.c		\
34				drivers/io/io_fip.c			\
35				drivers/io/io_memmap.c			\
36				drivers/io/io_storage.c			\
37				drivers/delay_timer/generic_delay_timer.c \
38				drivers/io/io_block.c			\
39				drivers/mmc/mmc.c			\
40				drivers/rpi3/sdhost/rpi3_sdhost.c	\
41				plat/common/aarch64/platform_mp_stack.S	\
42				plat/rpi/rpi3/aarch64/rpi3_bl2_mem_params_desc.c \
43				plat/rpi/rpi3/rpi3_bl2_setup.c		\
44				plat/rpi/common/rpi3_image_load.c	\
45				plat/rpi/common/rpi3_io_storage.c
46
47BL31_SOURCES		+=	lib/cpus/aarch64/cortex_a53.S		\
48				plat/common/plat_gicv2.c		\
49				plat/common/plat_psci_common.c		\
50				plat/rpi/rpi3/rpi3_bl31_setup.c		\
51				plat/rpi/common/rpi3_pm.c		\
52				plat/rpi/common/rpi3_topology.c		\
53				${LIBFDT_SRCS}
54
55# Tune compiler for Cortex-A53
56ifeq ($($(ARCH)-cc-id),arm-clang)
57    TF_CFLAGS_aarch64	+=	-mcpu=cortex-a53
58else ifneq ($(filter %-clang,$($(ARCH)-cc-id)),)
59    TF_CFLAGS_aarch64	+=	-mcpu=cortex-a53
60else
61    TF_CFLAGS_aarch64	+=	-mtune=cortex-a53
62endif
63
64# Platform Makefile target
65# ------------------------
66
67RPI3_BL1_PAD_BIN	:=	${BUILD_PLAT}/bl1_pad.bin
68RPI3_ARMSTUB8_BIN	:=	${BUILD_PLAT}/armstub8.bin
69
70# Add new default target when compiling this platform
71all: armstub
72
73# This target concatenates BL1 and the FIP so that the base addresses match the
74# ones defined in the memory map
75armstub: bl1 fip
76	@echo "  CAT     $@"
77	${Q}cp ${BUILD_PLAT}/bl1.bin ${RPI3_BL1_PAD_BIN}
78	${Q}truncate --size=131072 ${RPI3_BL1_PAD_BIN}
79	${Q}cat ${RPI3_BL1_PAD_BIN} ${BUILD_PLAT}/fip.bin > ${RPI3_ARMSTUB8_BIN}
80	@${ECHO_BLANK_LINE}
81	@echo "Built $@ successfully"
82	@${ECHO_BLANK_LINE}
83
84# Build config flags
85# ------------------
86
87# Enable all errata workarounds for Cortex-A53
88ERRATA_A53_826319		:= 1
89ERRATA_A53_835769		:= 1
90ERRATA_A53_836870		:= 1
91ERRATA_A53_843419		:= 1
92ERRATA_A53_855873		:= 1
93
94WORKAROUND_CVE_2017_5715	:= 0
95
96# Disable stack protector by default
97ENABLE_STACK_PROTECTOR	 	:= 0
98
99# Reset to BL31 isn't supported
100RESET_TO_BL31			:= 0
101
102# Have different sections for code and rodata
103SEPARATE_CODE_AND_RODATA	:= 1
104
105# Use Coherent memory
106USE_COHERENT_MEM		:= 1
107
108# Platform build flags
109# --------------------
110
111# BL33 images are in AArch64 by default
112RPI3_BL33_IN_AARCH32		:= 0
113
114# Assume that BL33 isn't the Linux kernel by default
115RPI3_DIRECT_LINUX_BOOT		:= 0
116
117# UART to use at runtime. -1 means the runtime UART is disabled.
118# Any other value means the default UART will be used.
119RPI3_RUNTIME_UART		:= -1
120
121# Use normal memory mapping for ROM, FIP, SRAM and DRAM
122RPI3_USE_UEFI_MAP		:= 0
123
124# BL32 location
125RPI3_BL32_RAM_LOCATION	:= tdram
126ifeq (${RPI3_BL32_RAM_LOCATION}, tsram)
127  RPI3_BL32_RAM_LOCATION_ID = SEC_SRAM_ID
128else ifeq (${RPI3_BL32_RAM_LOCATION}, tdram)
129  RPI3_BL32_RAM_LOCATION_ID = SEC_DRAM_ID
130else
131  $(error "Unsupported RPI3_BL32_RAM_LOCATION value")
132endif
133
134# Process platform flags
135# ----------------------
136
137$(eval $(call add_define,RPI3_BL32_RAM_LOCATION_ID))
138$(eval $(call add_define,RPI3_BL33_IN_AARCH32))
139$(eval $(call add_define,RPI3_DIRECT_LINUX_BOOT))
140ifdef RPI3_PRELOADED_DTB_BASE
141$(eval $(call add_define,RPI3_PRELOADED_DTB_BASE))
142endif
143$(eval $(call add_define,RPI3_RUNTIME_UART))
144$(eval $(call add_define,RPI3_USE_UEFI_MAP))
145
146# Verify build config
147# -------------------
148#
149ifneq (${RPI3_DIRECT_LINUX_BOOT}, 0)
150  ifndef RPI3_PRELOADED_DTB_BASE
151    $(error Error: RPI3_PRELOADED_DTB_BASE needed if RPI3_DIRECT_LINUX_BOOT=1)
152  endif
153endif
154
155ifneq (${RESET_TO_BL31}, 0)
156  $(error Error: rpi3 needs RESET_TO_BL31=0)
157endif
158
159ifeq (${ARCH},aarch32)
160  $(error Error: AArch32 not supported on rpi3)
161endif
162
163ifneq ($(ENABLE_STACK_PROTECTOR), 0)
164PLAT_BL_COMMON_SOURCES	+=	drivers/rpi3/rng/rpi3_rng.c		\
165				plat/rpi/common/rpi3_stack_protector.c
166endif
167
168ifeq (${SPD},opteed)
169BL2_SOURCES	+=							\
170		lib/optee/optee_utils.c
171endif
172
173# Add the build options to pack Trusted OS Extra1 and Trusted OS Extra2 images
174# in the FIP if the platform requires.
175ifneq ($(BL32_EXTRA1),)
176$(eval $(call TOOL_ADD_IMG,BL32_EXTRA1,--tos-fw-extra1))
177endif
178ifneq ($(BL32_EXTRA2),)
179$(eval $(call TOOL_ADD_IMG,BL32_EXTRA2,--tos-fw-extra2))
180endif
181
182ifneq (${TRUSTED_BOARD_BOOT},0)
183
184    include drivers/auth/mbedtls/mbedtls_crypto.mk
185    include drivers/auth/mbedtls/mbedtls_x509.mk
186
187    AUTH_SOURCES	:=	drivers/auth/auth_mod.c			\
188				drivers/auth/crypto_mod.c		\
189				drivers/auth/img_parser_mod.c		\
190				drivers/auth/tbbr/tbbr_cot_common.c
191
192    BL1_SOURCES		+=	${AUTH_SOURCES}				\
193				bl1/tbbr/tbbr_img_desc.c		\
194				plat/common/tbbr/plat_tbbr.c		\
195				plat/rpi/common/rpi3_trusted_boot.c    	\
196				plat/rpi/common/rpi3_rotpk.S		\
197				drivers/auth/tbbr/tbbr_cot_bl1.c
198
199    BL2_SOURCES		+=	${AUTH_SOURCES}				\
200				plat/common/tbbr/plat_tbbr.c		\
201				plat/rpi/common/rpi3_trusted_boot.c    	\
202				plat/rpi/common/rpi3_rotpk.S		\
203				drivers/auth/tbbr/tbbr_cot_bl2.c
204
205    ROT_KEY             = $(BUILD_PLAT)/rot_key.pem
206    ROTPK_HASH          = $(BUILD_PLAT)/rotpk_sha256.bin
207
208    $(eval $(call add_define_val,ROTPK_HASH,'"$(ROTPK_HASH)"'))
209
210    $(BUILD_PLAT)/bl1/rpi3_rotpk.o: $(ROTPK_HASH)
211    $(BUILD_PLAT)/bl2/rpi3_rotpk.o: $(ROTPK_HASH)
212
213    certificates: $(ROT_KEY)
214
215    $(ROT_KEY): | $(BUILD_PLAT)
216	@echo "  OPENSSL $@"
217	$(Q)${OPENSSL_BIN_PATH}/openssl genrsa 2048 > $@ 2>/dev/null
218
219    $(ROTPK_HASH): $(ROT_KEY)
220	@echo "  OPENSSL $@"
221	$(Q)${OPENSSL_BIN_PATH}/openssl rsa -in $< -pubout -outform DER 2>/dev/null |\
222	${OPENSSL_BIN_PATH}/openssl dgst -sha256 -binary > $@ 2>/dev/null
223endif
224