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
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				plat/rpi/common/rpi3_console_dual.c	\
19				${XLAT_TABLES_LIB_SRCS}
20
21BL31_SOURCES		+=	lib/cpus/aarch64/cortex_a72.S		\
22				plat/rpi/common/aarch64/plat_helpers.S	\
23				plat/rpi/common/aarch64/armstub8_header.S \
24				drivers/delay_timer/delay_timer.c	\
25				drivers/gpio/gpio.c			\
26				drivers/rpi3/gpio/rpi3_gpio.c		\
27				plat/common/plat_gicv2.c                \
28				plat/rpi/common/rpi4_bl31_setup.c	\
29				plat/rpi/rpi4/rpi4_setup.c		\
30				plat/rpi/common/rpi3_pm.c		\
31				plat/common/plat_psci_common.c		\
32				plat/rpi/common/rpi3_topology.c		\
33				common/fdt_fixup.c			\
34				common/fdt_wrappers.c			\
35				${LIBFDT_SRCS}				\
36				${GICV2_SOURCES}
37
38# For now we only support BL31, using the kernel loaded by the GPU firmware.
39RESET_TO_BL31		:=	1
40
41# All CPUs enter armstub8.bin.
42COLD_BOOT_SINGLE_CPU	:=	0
43
44# Tune compiler for Cortex-A72
45ifeq ($($(ARCH)-cc-id),arm-clang)
46    TF_CFLAGS_aarch64	+=	-mcpu=cortex-a72
47else ifneq ($(filter %-clang,$($(ARCH)-cc-id)),)
48    TF_CFLAGS_aarch64	+=	-mcpu=cortex-a72
49else
50    TF_CFLAGS_aarch64	+=	-mtune=cortex-a72
51endif
52
53# Add support for platform supplied linker script for BL31 build
54$(eval $(call add_define,PLAT_EXTRA_LD_SCRIPT))
55
56# Enable all errata workarounds for Cortex-A72
57ERRATA_A72_859971		:= 1
58
59WORKAROUND_CVE_2017_5715	:= 1
60
61# Add new default target when compiling this platform
62all: bl31
63
64# Build config flags
65# ------------------
66
67# Disable stack protector by default
68ENABLE_STACK_PROTECTOR	 	:= 0
69
70# Have different sections for code and rodata
71SEPARATE_CODE_AND_RODATA	:= 1
72
73# Use Coherent memory
74USE_COHERENT_MEM		:= 1
75
76# Platform build flags
77# --------------------
78
79# There is not much else than a Linux kernel to load at the moment.
80RPI3_DIRECT_LINUX_BOOT		:= 1
81
82# BL33 images are in AArch64 by default
83RPI3_BL33_IN_AARCH32		:= 0
84
85# UART to use at runtime. -1 means the runtime UART is disabled.
86# Any other value means the default UART will be used.
87RPI3_RUNTIME_UART		:= 0
88
89# Use normal memory mapping for ROM, FIP, SRAM and DRAM
90RPI3_USE_UEFI_MAP		:= 0
91
92# SMCCC PCI support (should be enabled for ACPI builds)
93SMC_PCI_SUPPORT            	:= 0
94
95# Process platform flags
96# ----------------------
97
98$(eval $(call add_define,RPI3_BL33_IN_AARCH32))
99$(eval $(call add_define,RPI3_DIRECT_LINUX_BOOT))
100ifdef RPI3_PRELOADED_DTB_BASE
101$(eval $(call add_define,RPI3_PRELOADED_DTB_BASE))
102endif
103$(eval $(call add_define,RPI3_RUNTIME_UART))
104$(eval $(call add_define,RPI3_USE_UEFI_MAP))
105$(eval $(call add_define,SMC_PCI_SUPPORT))
106
107ifeq (${ARCH},aarch32)
108  $(error Error: AArch32 not supported on rpi4)
109endif
110
111ifneq ($(ENABLE_STACK_PROTECTOR), 0)
112PLAT_BL_COMMON_SOURCES	+=	drivers/rpi3/rng/rpi3_rng.c		\
113				plat/rpi/common/rpi3_stack_protector.c
114endif
115
116ifeq ($(SMC_PCI_SUPPORT), 1)
117BL31_SOURCES            +=      plat/rpi/common/rpi_pci_svc.c
118endif
119