1#
2# Copyright (c) 2015-2024, Arm Limited and Contributors. All rights reserved.
3# Copyright (c) 2024, Mario Bălănică <[email protected]>
4#
5# SPDX-License-Identifier: BSD-3-Clause
6#
7
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/rpi5/include
14
15PLAT_BL_COMMON_SOURCES	:=	drivers/arm/pl011/aarch64/pl011_console.S 	\
16				plat/rpi/common/rpi3_common.c			\
17				plat/rpi/common/rpi3_console_pl011.c		\
18				${XLAT_TABLES_LIB_SRCS}
19
20BL31_SOURCES		+=	lib/cpus/aarch64/cortex_a76.S			\
21				plat/rpi/common/aarch64/plat_helpers.S		\
22				plat/rpi/common/aarch64/armstub8_header.S 	\
23				drivers/delay_timer/delay_timer.c		\
24				plat/common/plat_gicv2.c			\
25				plat/rpi/common/rpi4_bl31_setup.c		\
26				plat/rpi/rpi5/rpi5_setup.c			\
27				plat/rpi/common/rpi3_pm.c			\
28				plat/common/plat_psci_common.c			\
29				plat/rpi/common/rpi3_topology.c			\
30				${GICV2_SOURCES}
31
32# For now we only support BL31, using the kernel loaded by the GPU firmware.
33RESET_TO_BL31		:=	1
34
35# All CPUs enter armstub8.bin.
36COLD_BOOT_SINGLE_CPU	:=	0
37
38# Tune compiler for Cortex-A76
39ifeq ($(notdir $(CC)),armclang)
40    TF_CFLAGS_aarch64	+=	-mcpu=cortex-a76
41else ifneq ($(findstring clang,$(notdir $(CC))),)
42    TF_CFLAGS_aarch64	+=	-mcpu=cortex-a76
43else
44    TF_CFLAGS_aarch64	+=	-mtune=cortex-a76
45endif
46
47# Add support for platform supplied linker script for BL31 build
48$(eval $(call add_define,PLAT_EXTRA_LD_SCRIPT))
49
50# Enable all errata workarounds for Cortex-A76 r4p1
51ERRATA_A76_1946160		:= 1
52ERRATA_A76_2743102		:= 1
53
54# Add new default target when compiling this platform
55all: bl31
56
57# Build config flags
58# ------------------
59
60# Disable stack protector by default
61ENABLE_STACK_PROTECTOR	 	:= 0
62
63# Have different sections for code and rodata
64SEPARATE_CODE_AND_RODATA	:= 1
65
66# Hardware-managed coherency
67HW_ASSISTED_COHERENCY		:= 1
68USE_COHERENT_MEM		:= 0
69
70# Cortex-A76 is 64-bit only
71CTX_INCLUDE_AARCH32_REGS	:= 0
72
73# Platform build flags
74# --------------------
75
76# There is not much else than a Linux kernel to load at the moment.
77RPI3_DIRECT_LINUX_BOOT		:= 1
78
79# BL33 images can only be AArch64 on this platform.
80RPI3_BL33_IN_AARCH32		:= 0
81
82# UART to use at runtime. -1 means the runtime UART is disabled.
83# Any other value means the default UART will be used.
84RPI3_RUNTIME_UART		:= 0
85
86# Use normal memory mapping for ROM, FIP, SRAM and DRAM
87RPI3_USE_UEFI_MAP		:= 0
88
89# Process platform flags
90# ----------------------
91
92$(eval $(call add_define,RPI3_BL33_IN_AARCH32))
93$(eval $(call add_define,RPI3_DIRECT_LINUX_BOOT))
94ifdef RPI3_PRELOADED_DTB_BASE
95$(eval $(call add_define,RPI3_PRELOADED_DTB_BASE))
96endif
97$(eval $(call add_define,RPI3_RUNTIME_UART))
98$(eval $(call add_define,RPI3_USE_UEFI_MAP))
99
100ifeq (${ARCH},aarch32)
101  $(error Error: AArch32 not supported on rpi5)
102endif
103
104ifneq ($(ENABLE_STACK_PROTECTOR), 0)
105PLAT_BL_COMMON_SOURCES	+=	drivers/rpi3/rng/rpi3_rng.c		\
106				plat/rpi/common/rpi3_stack_protector.c
107endif
108