linux-kernel - [PATCH AUTOSEL 5.2 107/185] soc: renesas: Enable ARM_ERRATA

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Message-Id: <20190922184924.32534-107-sashal@kernel.org>
Date:   Sun, 22 Sep 2019 14:48:05 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Simon Horman <horms+renesas@...ge.net.au>,
        Sasha Levin <sashal@...nel.org>,
        linux-renesas-soc@...r.kernel.org
Subject: [PATCH AUTOSEL 5.2 107/185] soc: renesas: Enable ARM_ERRATA_754322 for affected Cortex-A9

From: Geert Uytterhoeven <geert+renesas@...der.be>

[ Upstream commit 2eced4607a1e6f51f928ae3e521fe02be5cb7d23 ]

ARM Erratum 754322 affects Cortex-A9 revisions r2p* and r3p*.

Automatically enable support code to mitigate the erratum when compiling
a kernel for any of the affected Renesas SoCs:
  - RZ/A1: r3p0,
  - R-Mobile A1: r2p4,
  - R-Car M1A: r2p2-00rel0,
  - R-Car H1: r3p0,
  - SH-Mobile AG5: r2p2.

EMMA Mobile EV2 (r1p3) and RZ/A2 (r4p1) are not affected.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Reviewed-by: Simon Horman <horms+renesas@...ge.net.au>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/soc/renesas/Kconfig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/soc/renesas/Kconfig b/drivers/soc/renesas/Kconfig
index 68bfca6f20ddf..2040caa6c8085 100644
--- a/drivers/soc/renesas/Kconfig
+++ b/drivers/soc/renesas/Kconfig
@@ -55,6 +55,7 @@ config ARCH_EMEV2
 
 config ARCH_R7S72100
 	bool "RZ/A1H (R7S72100)"
+	select ARM_ERRATA_754322
 	select PM
 	select PM_GENERIC_DOMAINS
 	select SYS_SUPPORTS_SH_MTU2
@@ -76,6 +77,7 @@ config ARCH_R8A73A4
 config ARCH_R8A7740
 	bool "R-Mobile A1 (R8A77400)"
 	select ARCH_RMOBILE
+	select ARM_ERRATA_754322
 	select RENESAS_INTC_IRQPIN
 
 config ARCH_R8A7743
@@ -103,10 +105,12 @@ config ARCH_R8A77470
 config ARCH_R8A7778
 	bool "R-Car M1A (R8A77781)"
 	select ARCH_RCAR_GEN1
+	select ARM_ERRATA_754322
 
 config ARCH_R8A7779
 	bool "R-Car H1 (R8A77790)"
 	select ARCH_RCAR_GEN1
+	select ARM_ERRATA_754322
 	select HAVE_ARM_SCU if SMP
 	select HAVE_ARM_TWD if SMP
 	select SYSC_R8A7779
@@ -150,6 +154,7 @@ config ARCH_R9A06G032
 config ARCH_SH73A0
 	bool "SH-Mobile AG5 (R8A73A00)"
 	select ARCH_RMOBILE
+	select ARM_ERRATA_754322
 	select HAVE_ARM_SCU if SMP
 	select HAVE_ARM_TWD if SMP
 	select RENESAS_INTC_IRQPIN
-- 
2.20.1