linux-kernel - [PATCH 4/5] ARM: fix CPU

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Date:   Thu, 18 Aug 2022 16:56:15 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Russell King <linux@...linux.org.uk>,
        Linus Walleij <linus.walleij@...aro.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Ard Biesheuvel <ardb@...nel.org>, Sekhar Nori <nsekhar@...com>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Subject: [PATCH 4/5] ARM: fix CPU_V6 dependencies

From: Arnd Bergmann <arnd@...db.de>

CONFIG_XIP_KERNEL must not be combined with CONFIG_SMP_ON_UP
because the patching of read-only data does not work.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/arm/mach-imx/Kconfig       | 1 +
 arch/arm/mach-omap2/Kconfig     | 1 +
 arch/arm/mach-versatile/Kconfig | 2 ++
 3 files changed, 4 insertions(+)

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index ab767f059929..9308e9894be5 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -41,6 +41,7 @@ comment "ARM1136 platforms"
 
 config SOC_IMX31
 	bool "i.MX31 support"
+	depends on !SMP || !XIP_KERNEL # for SMP_ON_UP
 	select CPU_V6
 	select MXC_AVIC
 	help
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 3b53dda9ec79..f2ce262958c4 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -8,6 +8,7 @@ config OMAP_HWMOD
 config ARCH_OMAP2
 	bool "TI OMAP2"
 	depends on ARCH_MULTI_V6
+	depends on !SMP || !XIP_KERNEL # for SMP_ON_UP
 	select ARCH_OMAP2PLUS
 	select CPU_V6
 	select OMAP_HWMOD
diff --git a/arch/arm/mach-versatile/Kconfig b/arch/arm/mach-versatile/Kconfig
index 2ef226194c3a..25723b0c63dd 100644
--- a/arch/arm/mach-versatile/Kconfig
+++ b/arch/arm/mach-versatile/Kconfig
@@ -21,6 +21,7 @@ menuconfig ARCH_INTEGRATOR
 	bool "ARM Ltd. Integrator family"
 	depends on ARCH_MULTI_V4T || ARCH_MULTI_V5 || ARCH_MULTI_V6
 	depends on CPU_LITTLE_ENDIAN || ARCH_MULTI_V6
+	depends on !SMP || !XIP_KERNEL # for SMP_ON_UP
 	select ARM_AMBA
 	select CMA
 	select DMA_CMA
@@ -146,6 +147,7 @@ endif
 menuconfig ARCH_REALVIEW
 	bool "ARM Ltd. RealView family"
 	depends on (CPU_LITTLE_ENDIAN && ARCH_MULTI_V5) || ARCH_MULTI_V6 || ARCH_MULTI_V7
+	depends on !SMP || !XIP_KERNEL # for SMP_ON_UP
 	select ARM_AMBA
 	select ARM_GIC
 	select ARM_TIMER_SP804
-- 
2.29.2