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				${LIBFDT_SRCS}				\
35				${GICV2_SOURCES}
36
37# For now we only support BL31, using the kernel loaded by the GPU firmware.
38RESET_TO_BL31		:=	1
39
40# All CPUs enter armstub8.bin.
41COLD_BOOT_SINGLE_CPU	:=	0
42
43# Tune compiler for Cortex-A72
44ifeq ($($(ARCH)-cc-id),arm-clang)
45    TF_CFLAGS_aarch64	+=	-mcpu=cortex-a72
46else ifneq ($(filter %-clang,$($(ARCH)-cc-id)),)
47    TF_CFLAGS_aarch64	+=	-mcpu=cortex-a72
48else
49    TF_CFLAGS_aarch64	+=	-mtune=cortex-a72
50endif
51
52# Add support for platform supplied linker script for BL31 build
53$(eval $(call add_define,PLAT_EXTRA_LD_SCRIPT))
54
55# Enable all errata workarounds for Cortex-A72
56ERRATA_A72_859971		:= 1
57
58WORKAROUND_CVE_2017_5715	:= 1
59
60# Add new default target when compiling this platform
61all: bl31
62
63# Build config flags
64# ------------------
65
66# Disable stack protector by default
67ENABLE_STACK_PROTECTOR	 	:= 0
68
69# Have different sections for code and rodata
70SEPARATE_CODE_AND_RODATA	:= 1
71
72# Use Coherent memory
73USE_COHERENT_MEM		:= 1
74
75# Platform build flags
76# --------------------
77
78# There is not much else than a Linux kernel to load at the moment.
79RPI3_DIRECT_LINUX_BOOT		:= 1
80
81# BL33 images are in AArch64 by default
82RPI3_BL33_IN_AARCH32		:= 0
83
84# UART to use at runtime. -1 means the runtime UART is disabled.
85# Any other value means the default UART will be used.
86RPI3_RUNTIME_UART		:= 0
87
88# Use normal memory mapping for ROM, FIP, SRAM and DRAM
89RPI3_USE_UEFI_MAP		:= 0
90
91# SMCCC PCI support (should be enabled for ACPI builds)
92SMC_PCI_SUPPORT            	:= 0
93
94# Process platform flags
95# ----------------------
96
97$(eval $(call add_define,RPI3_BL33_IN_AARCH32))
98$(eval $(call add_define,RPI3_DIRECT_LINUX_BOOT))
99ifdef RPI3_PRELOADED_DTB_BASE
100$(eval $(call add_define,RPI3_PRELOADED_DTB_BASE))
101endif
102$(eval $(call add_define,RPI3_RUNTIME_UART))
103$(eval $(call add_define,RPI3_USE_UEFI_MAP))
104$(eval $(call add_define,SMC_PCI_SUPPORT))
105
106ifeq (${ARCH},aarch32)
107  $(error Error: AArch32 not supported on rpi4)
108endif
109
110ifneq ($(ENABLE_STACK_PROTECTOR), 0)
111PLAT_BL_COMMON_SOURCES	+=	drivers/rpi3/rng/rpi3_rng.c		\
112				plat/rpi/common/rpi3_stack_protector.c
113endif
114
115ifeq ($(SMC_PCI_SUPPORT), 1)
116BL31_SOURCES            +=      plat/rpi/rpi4/rpi4_pci_svc.c
117endif
118