Samuel Holland e2b18771fc feat(allwinner): provide CPU idle states to the rich OS
When using SCPI as the PSCI backend, firmware can wake up the CPUs and
cluster from sleep, so CPU idle states are available for the rich OS to
use. In that case, advertise them to the rich OS via the DTB.

Change-Id: I718ef6ef41212fe5213b11b4799613adbbe6e0eb
Signed-off-by: Samuel Holland <samuel@sholland.org>
2022-04-26 17:52:43 +02:00

115 lines
3.4 KiB
Makefile

#
# Copyright (c) 2017-2021, ARM Limited and Contributors. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
include lib/xlat_tables_v2/xlat_tables.mk
include lib/libfdt/libfdt.mk
include drivers/arm/gic/v2/gicv2.mk
AW_PLAT := plat/allwinner
PLAT_INCLUDES := -Iinclude/plat/arm/common/aarch64 \
-I${AW_PLAT}/common/include \
-I${AW_PLAT}/${PLAT}/include
PLAT_BL_COMMON_SOURCES := drivers/ti/uart/${ARCH}/16550_console.S \
${XLAT_TABLES_LIB_SRCS} \
${AW_PLAT}/common/plat_helpers.S \
${AW_PLAT}/common/sunxi_common.c
BL31_SOURCES += drivers/allwinner/axp/common.c \
${GICV2_SOURCES} \
drivers/delay_timer/delay_timer.c \
drivers/delay_timer/generic_delay_timer.c \
lib/cpus/${ARCH}/cortex_a53.S \
plat/common/plat_gicv2.c \
plat/common/plat_psci_common.c \
${AW_PLAT}/common/sunxi_bl31_setup.c \
${AW_PLAT}/${PLAT}/sunxi_idle_states.c \
${AW_PLAT}/common/sunxi_pm.c \
${AW_PLAT}/${PLAT}/sunxi_power.c \
${AW_PLAT}/common/sunxi_security.c \
${AW_PLAT}/common/sunxi_topology.c
# By default, attempt to use SCPI to the ARISC management processor. If SCPI
# is not enabled or SCP firmware is not loaded, fall back to a simpler native
# implementation that does not support CPU or system suspend.
#
# If SCP firmware will always be present (or absent), the unused implementation
# can be compiled out.
SUNXI_PSCI_USE_NATIVE ?= 1
SUNXI_PSCI_USE_SCPI ?= 1
$(eval $(call assert_boolean,SUNXI_PSCI_USE_NATIVE))
$(eval $(call assert_boolean,SUNXI_PSCI_USE_SCPI))
$(eval $(call add_define,SUNXI_PSCI_USE_NATIVE))
$(eval $(call add_define,SUNXI_PSCI_USE_SCPI))
ifeq (${SUNXI_PSCI_USE_NATIVE}${SUNXI_PSCI_USE_SCPI},00)
$(error "At least one of SCPI or native PSCI ops must be enabled")
endif
ifeq (${SUNXI_PSCI_USE_NATIVE},1)
BL31_SOURCES += ${AW_PLAT}/common/sunxi_cpu_ops.c \
${AW_PLAT}/common/sunxi_native_pm.c
endif
ifeq (${SUNXI_PSCI_USE_SCPI},1)
BL31_SOURCES += drivers/allwinner/sunxi_msgbox.c \
drivers/arm/css/scpi/css_scpi.c \
${AW_PLAT}/common/sunxi_scpi_pm.c
endif
SUNXI_SETUP_REGULATORS ?= 1
$(eval $(call assert_boolean,SUNXI_SETUP_REGULATORS))
$(eval $(call add_define,SUNXI_SETUP_REGULATORS))
SUNXI_BL31_IN_DRAM ?= 0
$(eval $(call assert_boolean,SUNXI_BL31_IN_DRAM))
ifeq (${SUNXI_BL31_IN_DRAM},1)
SUNXI_AMEND_DTB := 1
$(eval $(call add_define,SUNXI_BL31_IN_DRAM))
endif
SUNXI_AMEND_DTB ?= 0
$(eval $(call assert_boolean,SUNXI_AMEND_DTB))
$(eval $(call add_define,SUNXI_AMEND_DTB))
ifeq (${SUNXI_AMEND_DTB},1)
BL31_SOURCES += common/fdt_fixup.c \
${AW_PLAT}/common/sunxi_prepare_dtb.c
endif
# The bootloader is guaranteed to only run on CPU 0 by the boot ROM.
COLD_BOOT_SINGLE_CPU := 1
# Do not enable SPE (not supported on ARM v8.0).
ENABLE_SPE_FOR_LOWER_ELS := 0
# Do not enable SVE (not supported on ARM v8.0).
ENABLE_SVE_FOR_NS := 0
# Enable workarounds for Cortex-A53 errata. Allwinner uses at least r0p4.
ERRATA_A53_835769 := 1
ERRATA_A53_843419 := 1
ERRATA_A53_855873 := 1
ERRATA_A53_1530924 := 1
# The traditional U-Boot load address is 160MB into DRAM.
PRELOADED_BL33_BASE ?= 0x4a000000
# The reset vector can be changed for each CPU.
PROGRAMMABLE_RESET_ADDRESS := 1
# Allow mapping read-only data as execute-never.
SEPARATE_CODE_AND_RODATA := 1
# BL31 gets loaded alongside BL33 (U-Boot) by U-Boot's SPL
RESET_TO_BL31 := 1
# This platform is single-cluster and does not require coherency setup.
WARMBOOT_ENABLE_DCACHE_EARLY := 1