From 76e67df8bc1cb72157368c3669119e64cdb0a6a6 Mon Sep 17 00:00:00 2001 From: Qingfang Deng Date: Sun, 20 Sep 2026 12:07:37 +0800 Subject: [PATCH] ARM: mvebu: fix Cortex-A9 errata selection for Armada 38x Armada 38x uses Cortex-A9 r4p1, but MACH_ARMADA_38X selects the workaround for erratum 720789, which was fixed in r2p0, and omits workarounds for errata that still affect r4p1. Drop ARM_ERRATA_720789 and select ARM_ERRATA_754322 for faulty MMU translations following an ASID switch and ARM_ERRATA_764319 for unexpected undefined instruction exceptions when reading debug registers. Also select ARM_ERRATA_764369 when SMP is enabled to work around cache maintenance by MVA failing to reach other agents. The Cortex-A9 r4 Software Developers Errata Notice (ARM UAN 0009D) lists these errata in sections 2.3.3, 2.5.10 and 2.3.4, respectively. Link: https://documentation-service.arm.com/static/608118675e70d934bc69f143 Fixes: 9aa30f1c13d1 ("ARM: mvebu: add initial support for the Armada 380/385 SOCs") Signed-off-by: Qingfang Deng Signed-off-by: Gregory CLEMENT --- arch/arm/mach-mvebu/Kconfig | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig index 9f60a6fe0eaf..5203b5cfa457 100644 --- a/arch/arm/mach-mvebu/Kconfig +++ b/arch/arm/mach-mvebu/Kconfig @@ -55,7 +55,9 @@ config MACH_ARMADA_375 config MACH_ARMADA_38X bool "Marvell Armada 380/385 boards" depends on ARCH_MULTI_V7 - select ARM_ERRATA_720789 + select ARM_ERRATA_754322 + select ARM_ERRATA_764319 + select ARM_ERRATA_764369 if SMP select PL310_ERRATA_753970 select ARM_GIC select ARM_GLOBAL_TIMER