1#
2# Copyright (c) 2013-2021, 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
10include drivers/arm/gic/v2/gicv2.mk
11
12PLAT_INCLUDES		:=	-Iplat/rpi/common/include		\
13				-Iplat/rpi/rpi4/include
14
15PLAT_BL_COMMON_SOURCES	:=	drivers/ti/uart/aarch64/16550_console.S	\
16				drivers/arm/pl011/aarch64/pl011_console.S \
17				plat/rpi/common/rpi3_common.c		\
18				${XLAT_TABLES_LIB_SRCS}
19
20BL31_SOURCES		+=	lib/cpus/aarch64/cortex_a72.S		\
21				plat/rpi/common/aarch64/plat_helpers.S	\
22				plat/rpi/rpi4/aarch64/armstub8_header.S	\
23				drivers/delay_timer/delay_timer.c	\
24				drivers/gpio/gpio.c			\
25				drivers/rpi3/gpio/rpi3_gpio.c		\
26				plat/common/plat_gicv2.c                \
27				plat/rpi/rpi4/rpi4_bl31_setup.c		\
28				plat/rpi/common/rpi3_pm.c		\
29				plat/common/plat_psci_common.c		\
30				plat/rpi/common/rpi3_topology.c		\
31				common/fdt_fixup.c			\
32				${LIBFDT_SRCS}				\
33				${GICV2_SOURCES}
34
35# For now we only support BL31, using the kernel loaded by the GPU firmware.
36RESET_TO_BL31		:=	1
37
38# All CPUs enter armstub8.bin.
39COLD_BOOT_SINGLE_CPU	:=	0
40
41# Tune compiler for Cortex-A72
42ifeq ($(notdir $(CC)),armclang)
43    TF_CFLAGS_aarch64	+=	-mcpu=cortex-a72
44else ifneq ($(findstring clang,$(notdir $(CC))),)
45    TF_CFLAGS_aarch64	+=	-mcpu=cortex-a72
46else
47    TF_CFLAGS_aarch64	+=	-mtune=cortex-a72
48endif
49
50# Add support for platform supplied linker script for BL31 build
51$(eval $(call add_define,PLAT_EXTRA_LD_SCRIPT))
52
53# Enable all errata workarounds for Cortex-A72
54ERRATA_A72_859971		:= 1
55
56WORKAROUND_CVE_2017_5715	:= 1
57
58# Add new default target when compiling this platform
59all: bl31
60
61# Build config flags
62# ------------------
63
64# Disable stack protector by default
65ENABLE_STACK_PROTECTOR	 	:= 0
66
67# Have different sections for code and rodata
68SEPARATE_CODE_AND_RODATA	:= 1
69
70# Use Coherent memory
71USE_COHERENT_MEM		:= 1
72
73# Platform build flags
74# --------------------
75
76# There is not much else than a Linux kernel to load at the moment.
77RPI3_DIRECT_LINUX_BOOT		:= 1
78
79# BL33 images are in AArch64 by default
80RPI3_BL33_IN_AARCH32		:= 0
81
82# UART to use at runtime. -1 means the runtime UART is disabled.
83# Any other value means the default UART will be used.
84RPI3_RUNTIME_UART		:= 0
85
86# Use normal memory mapping for ROM, FIP, SRAM and DRAM
87RPI3_USE_UEFI_MAP		:= 0
88
89# SMCCC PCI support (should be enabled for ACPI builds)
90SMC_PCI_SUPPORT            	:= 0
91
92# Process platform flags
93# ----------------------
94
95$(eval $(call add_define,RPI3_BL33_IN_AARCH32))
96$(eval $(call add_define,RPI3_DIRECT_LINUX_BOOT))
97ifdef RPI3_PRELOADED_DTB_BASE
98$(eval $(call add_define,RPI3_PRELOADED_DTB_BASE))
99endif
100$(eval $(call add_define,RPI3_RUNTIME_UART))
101$(eval $(call add_define,RPI3_USE_UEFI_MAP))
102$(eval $(call add_define,SMC_PCI_SUPPORT))
103
104ifeq (${ARCH},aarch32)
105  $(error Error: AArch32 not supported on rpi4)
106endif
107
108ifneq ($(ENABLE_STACK_PROTECTOR), 0)
109PLAT_BL_COMMON_SOURCES	+=	drivers/rpi3/rng/rpi3_rng.c		\
110				plat/rpi/common/rpi3_stack_protector.c
111endif
112
113ifeq ($(SMC_PCI_SUPPORT), 1)
114BL31_SOURCES            +=      plat/rpi/rpi4/rpi4_pci_svc.c
115endif
116
117