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From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Simon Horman <horms@verge.net.au>, Magnus Damm <magnus.damm@gmail.com>
Cc: linux-renesas-soc@vger.kernel.org,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/3] soc: renesas: Enable ARM_ERRATA_754322 for affected Cortex-A9
Date: Wed, 21 Aug 2019 14:46:01 +0200	[thread overview]
Message-ID: <20190821124602.29317-3-geert+renesas@glider.be> (raw)
In-Reply-To: <20190821124602.29317-1-geert+renesas@glider.be>

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

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,
and drop the corresponding config symbol from shmobile_defconfig.

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

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
Looks like my R-Mobile A1 is actually r2p3, and the R-Car M1A in Magnus'
farm is r2p4?

 arch/arm/configs/shmobile_defconfig | 1 -
 drivers/soc/renesas/Kconfig         | 5 +++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index c6c70355141c38fa..123821e63873dafa 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -9,7 +9,6 @@ CONFIG_PERF_EVENTS=y
 CONFIG_SLAB=y
 CONFIG_ARCH_RENESAS=y
 CONFIG_PL310_ERRATA_588369=y
-CONFIG_ARM_ERRATA_754322=y
 CONFIG_SMP=y
 CONFIG_SCHED_MC=y
 CONFIG_NR_CPUS=8
diff --git a/drivers/soc/renesas/Kconfig b/drivers/soc/renesas/Kconfig
index a72d014ea37cc788..3c5e017bacbaca11 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 RENESAS_OSTM
@@ -79,6 +80,7 @@ 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
@@ -108,10 +110,12 @@ 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
@@ -158,6 +162,7 @@ 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
-- 
2.17.1


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  parent reply	other threads:[~2019-08-21 12:47 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-21 12:45 [PATCH 0/3] soc: renesas: ARM errata updates Geert Uytterhoeven
2019-08-21 12:46 ` [PATCH 1/3] soc: renesas: Enable ARM_ERRATA_814220 for affected Cortex-A7 Geert Uytterhoeven
2019-08-22  8:58   ` Simon Horman
2019-08-21 12:46 ` Geert Uytterhoeven [this message]
2019-08-22  8:59   ` [PATCH 2/3] soc: renesas: Enable ARM_ERRATA_754322 for affected Cortex-A9 Simon Horman
2019-08-21 12:46 ` [PATCH 3/3] [RFC] ARM: shmobile: defconfig: Disable PL310_ERRATA_588369 Geert Uytterhoeven
2019-08-22  8:58   ` Simon Horman
2019-08-23  9:49     ` Geert Uytterhoeven
2019-08-23  7:54 ` [PATCH 0/3] soc: renesas: ARM errata updates Geert Uytterhoeven
2019-08-23  8:35   ` Geert Uytterhoeven

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