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42488064e1
When fdt_add_reserved_memory() is called to add a memory region, we unconditionally add a node for that region. However there might be an existing region node in the DT already, or there might be an overlapping region. The Linux kernel will complain in those cases. Cover the simple case of the region already existing in the DT, as this is what we actually see on the Allwinner H616: The mainline DT contains a node reserving the memory for TF-A, in case the DT changed by TF-A itself is not given to the kernel. Our code always adds a region, making the kernel complain - albeit without further consequences. Covering all cases of overlapping regions would blow up the generic DT code too much, so just add a simple check for an existing region completely containing the to-be-added region, simply bailing out in this case. This prevents the kernel warning for the Allwinner H616. This code requires a function from fdt_wrappers.c, so we have to include that file for platforms that use the fdt_add_reserved_memory() function (rpi4 and versal2). Change-Id: I98404889163316addbb42130d7177f1a21c8be06 Signed-off-by: Andre Przywara <andre.przywara@arm.com>
118 lines
3.2 KiB
Makefile
118 lines
3.2 KiB
Makefile
#
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# Copyright (c) 2013-2024, Arm Limited and Contributors. All rights reserved.
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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include lib/libfdt/libfdt.mk
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include lib/xlat_tables_v2/xlat_tables.mk
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include drivers/arm/gic/v2/gicv2.mk
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PLAT_INCLUDES := -Iplat/rpi/common/include \
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-Iplat/rpi/rpi4/include
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PLAT_BL_COMMON_SOURCES := drivers/ti/uart/aarch64/16550_console.S \
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drivers/arm/pl011/aarch64/pl011_console.S \
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plat/rpi/common/rpi3_common.c \
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plat/rpi/common/rpi3_console_dual.c \
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${XLAT_TABLES_LIB_SRCS}
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BL31_SOURCES += lib/cpus/aarch64/cortex_a72.S \
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plat/rpi/common/aarch64/plat_helpers.S \
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plat/rpi/common/aarch64/armstub8_header.S \
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drivers/delay_timer/delay_timer.c \
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drivers/gpio/gpio.c \
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drivers/rpi3/gpio/rpi3_gpio.c \
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plat/common/plat_gicv2.c \
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plat/rpi/common/rpi4_bl31_setup.c \
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plat/rpi/rpi4/rpi4_setup.c \
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plat/rpi/common/rpi3_pm.c \
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plat/common/plat_psci_common.c \
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plat/rpi/common/rpi3_topology.c \
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common/fdt_fixup.c \
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common/fdt_wrappers.c \
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${LIBFDT_SRCS} \
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${GICV2_SOURCES}
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# For now we only support BL31, using the kernel loaded by the GPU firmware.
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RESET_TO_BL31 := 1
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# All CPUs enter armstub8.bin.
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COLD_BOOT_SINGLE_CPU := 0
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# Tune compiler for Cortex-A72
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ifeq ($($(ARCH)-cc-id),arm-clang)
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TF_CFLAGS_aarch64 += -mcpu=cortex-a72
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else ifneq ($(filter %-clang,$($(ARCH)-cc-id)),)
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TF_CFLAGS_aarch64 += -mcpu=cortex-a72
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else
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TF_CFLAGS_aarch64 += -mtune=cortex-a72
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endif
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# Add support for platform supplied linker script for BL31 build
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$(eval $(call add_define,PLAT_EXTRA_LD_SCRIPT))
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# Enable all errata workarounds for Cortex-A72
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ERRATA_A72_859971 := 1
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WORKAROUND_CVE_2017_5715 := 1
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# Add new default target when compiling this platform
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all: bl31
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# Build config flags
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# ------------------
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# Disable stack protector by default
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ENABLE_STACK_PROTECTOR := 0
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# Have different sections for code and rodata
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SEPARATE_CODE_AND_RODATA := 1
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# Use Coherent memory
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USE_COHERENT_MEM := 1
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# Platform build flags
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# --------------------
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# There is not much else than a Linux kernel to load at the moment.
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RPI3_DIRECT_LINUX_BOOT := 1
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# BL33 images are in AArch64 by default
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RPI3_BL33_IN_AARCH32 := 0
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# UART to use at runtime. -1 means the runtime UART is disabled.
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# Any other value means the default UART will be used.
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RPI3_RUNTIME_UART := 0
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# Use normal memory mapping for ROM, FIP, SRAM and DRAM
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RPI3_USE_UEFI_MAP := 0
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# SMCCC PCI support (should be enabled for ACPI builds)
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SMC_PCI_SUPPORT := 0
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# Process platform flags
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# ----------------------
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$(eval $(call add_define,RPI3_BL33_IN_AARCH32))
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$(eval $(call add_define,RPI3_DIRECT_LINUX_BOOT))
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ifdef RPI3_PRELOADED_DTB_BASE
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$(eval $(call add_define,RPI3_PRELOADED_DTB_BASE))
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endif
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$(eval $(call add_define,RPI3_RUNTIME_UART))
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$(eval $(call add_define,RPI3_USE_UEFI_MAP))
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$(eval $(call add_define,SMC_PCI_SUPPORT))
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ifeq (${ARCH},aarch32)
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$(error Error: AArch32 not supported on rpi4)
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endif
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ifneq ($(ENABLE_STACK_PROTECTOR), 0)
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PLAT_BL_COMMON_SOURCES += drivers/rpi3/rng/rpi3_rng.c \
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plat/rpi/common/rpi3_stack_protector.c
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endif
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ifeq ($(SMC_PCI_SUPPORT), 1)
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BL31_SOURCES += plat/rpi/common/rpi_pci_svc.c
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endif
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