rpi3: Introduce AArch64 Raspberry Pi 3 port
This port can be compiled to boot an AArch64 or AArch32 payload with the
build option `RPI3_BL33_AARCH32`.
Note: This is not a secure port of the Trusted Firmware. This port is
only meant to be a reference implementation to experiment with an
inexpensive board in real hardware.
Change-Id: Ide58114299289bf765ef1366199eb05c46f81903
Co-authored-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
diff --git a/plat/rpi3/platform.mk b/plat/rpi3/platform.mk
new file mode 100644
index 0000000..821f801
--- /dev/null
+++ b/plat/rpi3/platform.mk
@@ -0,0 +1,113 @@
+#
+# Copyright (c) 2013-2017, ARM Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+PLAT_INCLUDES := -Iinclude/common/tbbr \
+ -Iinclude/plat/arm/common/ \
+ -Iinclude/plat/arm/common/aarch64/ \
+ -Iplat/rpi3/include
+
+PLAT_BL_COMMON_SOURCES := drivers/console/aarch64/console.S \
+ drivers/ti/uart/aarch64/16550_console.S \
+ plat/rpi3/rpi3_common.c
+
+BL1_SOURCES += drivers/io/io_fip.c \
+ drivers/io/io_memmap.c \
+ drivers/io/io_storage.c \
+ lib/cpus/aarch64/cortex_a53.S \
+ plat/common/aarch64/platform_mp_stack.S \
+ plat/rpi3/aarch64/plat_helpers.S \
+ plat/rpi3/rpi3_bl1_setup.c \
+ plat/rpi3/rpi3_io_storage.c
+
+BL2_SOURCES += common/desc_image_load.c \
+ drivers/io/io_fip.c \
+ drivers/io/io_memmap.c \
+ drivers/io/io_storage.c \
+ plat/common/aarch64/platform_mp_stack.S \
+ plat/rpi3/aarch64/plat_helpers.S \
+ plat/rpi3/aarch64/rpi3_bl2_mem_params_desc.c \
+ plat/rpi3/rpi3_bl2_setup.c \
+ plat/rpi3/rpi3_image_load.c \
+ plat/rpi3/rpi3_io_storage.c
+
+BL31_SOURCES += lib/cpus/aarch64/cortex_a53.S \
+ plat/common/aarch64/plat_psci_common.c \
+ plat/rpi3/aarch64/plat_helpers.S \
+ plat/rpi3/rpi3_bl31_setup.c \
+ plat/rpi3/rpi3_pm.c \
+ plat/rpi3/rpi3_topology.c
+
+# Translation tables library
+include lib/xlat_tables_v2/xlat_tables.mk
+
+PLAT_BL_COMMON_SOURCES += ${XLAT_TABLES_LIB_SRCS}
+
+# Tune compiler for Cortex-A53
+ifeq ($(notdir $(CC)),armclang)
+ TF_CFLAGS_aarch64 += -mcpu=cortex-a53
+else ifneq ($(findstring clang,$(notdir $(CC))),)
+ TF_CFLAGS_aarch64 += -mcpu=cortex-a53
+else
+ TF_CFLAGS_aarch64 += -mtune=cortex-a53
+endif
+
+# Build config flags
+# ------------------
+
+# Enable all errata workarounds for Cortex-A53
+ERRATA_A53_826319 := 1
+ERRATA_A53_835769 := 1
+ERRATA_A53_836870 := 1
+ERRATA_A53_843419 := 1
+ERRATA_A53_855873 := 1
+
+# Disable the PSCI platform compatibility layer by default
+ENABLE_PLAT_COMPAT := 0
+
+# Enable reset to BL31 by default
+RESET_TO_BL31 := 1
+
+# Have different sections for code and rodata
+SEPARATE_CODE_AND_RODATA := 1
+
+# Use Coherent memory
+USE_COHERENT_MEM := 1
+
+# Enable new version of image loading
+LOAD_IMAGE_V2 := 1
+
+# Platform build flags
+# --------------------
+
+# BL33 images are in AArch64 by default
+RPI3_BL33_IN_AARCH32 := 0
+
+# BL32 location
+RPI3_BL32_RAM_LOCATION := tdram
+ifeq (${RPI3_BL32_RAM_LOCATION}, tsram)
+ RPI3_BL32_RAM_LOCATION_ID = SEC_SRAM_ID
+else ifeq (${RPI3_BL32_RAM_LOCATION}, tdram)
+ RPI3_BL32_RAM_LOCATION_ID = SEC_DRAM_ID
+else
+ $(error "Unsupported RPI3_BL32_RAM_LOCATION value")
+endif
+
+# Process platform flags
+# ----------------------
+
+$(eval $(call add_define,RPI3_BL32_RAM_LOCATION_ID))
+$(eval $(call add_define,RPI3_BL33_IN_AARCH32))
+
+# Verify build config
+# -------------------
+
+ifneq (${LOAD_IMAGE_V2}, 1)
+ $(error Error: rpi3 needs LOAD_IMAGE_V2=1)
+endif
+
+ifeq (${ARCH},aarch32)
+ $(error Error: AArch32 not supported on rpi3)
+endif