arm-trusted-firmware/plat/mediatek/mt8188/plat_config.mk
Govindraj Raja ac9f4b4da6 fix(cpus): remove errata setting PF_MODE to conservative
The erratum titled “Disabling of data prefetcher with outstanding
prefetch TLB miss might cause a deadlock” should not be handled within
TF-A. The current workaround attempts to follow option 2 but
misapplies it. Specifically, it statically sets PF_MODE to
conservative, which is not the recommended approach. According to the
erratum documentation, PF_MODE should be configured in conservative
mode only when we disable data prefetcher however this is not done
in TF-A and thus the workaround is not needed in TF-A.

The static setting of PF_MODE in TF-A does not correctly address the
erratum and may introduce unnecessary performance degradation on
platforms that adopt it without fully understanding its implications.

To prevent incorrect or unintended use, the current implementation of
this erratum workaround should be removed from TF-A and not adopted by
platforms.

List of Impacted CPU's with Errata Numbers and reference to SDEN -

Cortex-A78  - 2132060 - https://developer.arm.com/documentation/SDEN1401784/latest
Cortex-A78C - 2132064 - https://developer.arm.com/documentation/SDEN-2004089/latest
Cortex-A710 - 2058056 - https://developer.arm.com/documentation/SDEN-1775101/latest
Cortex-X2   - 2058056 - https://developer.arm.com/documentation/SDEN-1775100/latest
Cortex-X3   - 2070301 - https://developer.arm.com/documentation/SDEN2055130/latest
Neoverse-N2 - 2138953 - https://developer.arm.com/documentation/SDEN-1982442/latest
Neoverse-V1 - 2108267 - https://developer.arm.com/documentation/SDEN-1401781/latest
Neoverse-V2 - 2331132 - https://developer.arm.com/documentation/SDEN-2332927/latest

Change-Id: Icf4048508ae070b2df073cc46c63be058b2779df
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
2025-03-31 01:00:27 +01:00

52 lines
1.2 KiB
Makefile

#
# Copyright (c) 2022-2024, MediaTek Inc. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
# Separate text code and read only data
SEPARATE_CODE_AND_RODATA := 1
# ARMv8.2 and above need enable HW assist coherence
HW_ASSISTED_COHERENCY := 1
# No need coherency memory because of HW assistency
USE_COHERENT_MEM := 0
# GIC600
GICV3_SUPPORT_GIC600 := 1
#
# MTK options
#
PLAT_EXTRA_RODATA_INCLUDES := 1
USE_PMIC_WRAP_INIT_V2 := 1
USE_RTC_MT6359P := 1
# Configs for A78 and A55
CTX_INCLUDE_AARCH32_REGS := 0
ERRATA_A55_1530923 := 1
ERRATA_A55_1221012 := 1
ERRATA_A78_1688305 := 1
ERRATA_A78_1941498 := 1
ERRATA_A78_1951500 := 1
ERRATA_A78_1821534 := 1
ERRATA_A78_2242635 := 1
ERRATA_A78_2376745 := 1
ERRATA_A78_2395406 := 1
CONFIG_ARCH_ARM_V8_2 := y
CONFIG_MTK_MCUSYS := y
MCUSYS_VERSION := v1
CONFIG_MTK_PM_SUPPORT := y
CONFIG_MTK_PM_ARCH := 8_2
CONFIG_MTK_CPU_PM_SUPPORT := y
CONFIG_MTK_CPU_PM_ARCH := 3_2
CONFIG_MTK_SMP_EN := y
CONFIG_MTK_CPU_SUSPEND_EN := y
CONFIG_MTK_SPM_VERSION := mt8188
CONFIG_MTK_SUPPORT_SYSTEM_SUSPEND := y
CPU_PM_TINYSYS_SUPPORT := y
MTK_PUBEVENT_ENABLE := y
# True Random Number Generator firmware Interface
TRNG_SUPPORT := 1
MACH_MT8188 := 1
$(eval $(call add_define,MACH_MT8188))