1# 2# Copyright (c) 2013-2019, 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/rpi4/include 12 13PLAT_BL_COMMON_SOURCES := drivers/ti/uart/aarch64/16550_console.S \ 14 plat/rpi/common/rpi3_common.c \ 15 ${XLAT_TABLES_LIB_SRCS} 16 17BL31_SOURCES += lib/cpus/aarch64/cortex_a72.S \ 18 plat/rpi/rpi4/aarch64/plat_helpers.S \ 19 plat/rpi/rpi4/aarch64/armstub8_header.S \ 20 drivers/arm/gic/common/gic_common.c \ 21 drivers/arm/gic/v2/gicv2_helpers.c \ 22 drivers/arm/gic/v2/gicv2_main.c \ 23 plat/common/plat_gicv2.c \ 24 plat/rpi/rpi4/rpi4_bl31_setup.c \ 25 plat/rpi/common/rpi3_pm.c \ 26 plat/common/plat_psci_common.c \ 27 plat/rpi/common/rpi3_topology.c \ 28 ${LIBFDT_SRCS} 29 30# For now we only support BL31, using the kernel loaded by the GPU firmware. 31RESET_TO_BL31 := 1 32 33# All CPUs enter armstub8.bin. 34COLD_BOOT_SINGLE_CPU := 0 35 36# Tune compiler for Cortex-A72 37ifeq ($(notdir $(CC)),armclang) 38 TF_CFLAGS_aarch64 += -mcpu=cortex-a72 39else ifneq ($(findstring clang,$(notdir $(CC))),) 40 TF_CFLAGS_aarch64 += -mcpu=cortex-a72 41else 42 TF_CFLAGS_aarch64 += -mtune=cortex-a72 43endif 44 45# Add support for platform supplied linker script for BL31 build 46$(eval $(call add_define,PLAT_EXTRA_LD_SCRIPT)) 47 48# Enable all errata workarounds for Cortex-A72 49ERRATA_A72_859971 := 1 50 51WORKAROUND_CVE_2017_5715 := 1 52 53# Add new default target when compiling this platform 54all: bl31 55 56# Build config flags 57# ------------------ 58 59# Disable stack protector by default 60ENABLE_STACK_PROTECTOR := 0 61 62# Have different sections for code and rodata 63SEPARATE_CODE_AND_RODATA := 1 64 65# Use Coherent memory 66USE_COHERENT_MEM := 1 67 68# Platform build flags 69# -------------------- 70 71# Assume that BL33 isn't the Linux kernel by default 72RPI3_DIRECT_LINUX_BOOT := 0 73 74# BL33 images are in AArch64 by default 75RPI3_BL33_IN_AARCH32 := 0 76 77# UART to use at runtime. -1 means the runtime UART is disabled. 78# Any other value means the default UART will be used. 79RPI3_RUNTIME_UART := 0 80 81# Use normal memory mapping for ROM, FIP, SRAM and DRAM 82RPI3_USE_UEFI_MAP := 0 83 84# Process platform flags 85# ---------------------- 86 87$(eval $(call add_define,RPI3_BL33_IN_AARCH32)) 88$(eval $(call add_define,RPI3_DIRECT_LINUX_BOOT)) 89ifdef RPI3_PRELOADED_DTB_BASE 90$(eval $(call add_define,RPI3_PRELOADED_DTB_BASE)) 91endif 92$(eval $(call add_define,RPI3_RUNTIME_UART)) 93$(eval $(call add_define,RPI3_USE_UEFI_MAP)) 94 95# Verify build config 96# ------------------- 97# 98ifneq (${RPI3_DIRECT_LINUX_BOOT}, 0) 99 ifndef RPI3_PRELOADED_DTB_BASE 100 $(error Error: RPI3_PRELOADED_DTB_BASE needed if RPI3_DIRECT_LINUX_BOOT=1) 101 endif 102endif 103 104ifeq (${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