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From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Alexander Stein <alexander.stein@ew.tq-group.com>
Cc: Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>,
	Shawn Guo <shawnguo@kernel.org>, Li Yang <leoyang.li@nxp.com>,
	Marek Vasut <marex@denx.de>,
	Marcel Ziswiler <marcel.ziswiler@toradex.com>,
	soc@kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 9/9] [DNI] ARM: multi_v7_defconfig: Enable CONFIG_ARM_LPAE for multi_v7_config
Date: Thu, 19 Jan 2023 16:00:30 +0000	[thread overview]
Message-ID: <Y8lpHhKKfRNGq1m0@shell.armlinux.org.uk> (raw)
In-Reply-To: <20230119144236.3541751-10-alexander.stein@ew.tq-group.com>

On Thu, Jan 19, 2023 at 03:42:36PM +0100, Alexander Stein wrote:
> This is necessary to support PCIe on LS1021A.
> 
> Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
> ---
>  arch/arm/configs/multi_v7_defconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
> index 441a449172368..f0757f05ec2c2 100644
> --- a/arch/arm/configs/multi_v7_defconfig
> +++ b/arch/arm/configs/multi_v7_defconfig
> @@ -105,6 +105,7 @@ CONFIG_ARCH_VEXPRESS=y
>  CONFIG_ARCH_VEXPRESS_TC2_PM=y
>  CONFIG_ARCH_WM8850=y
>  CONFIG_ARCH_ZYNQ=y
> +CONFIG_ARM_LPAE=y
>  CONFIG_SMP=y
>  CONFIG_NR_CPUS=16
>  CONFIG_ARM_APPENDED_DTB=y

Enabling LPAE will break multi_v7 on CPUs that do not support LPAE,
such as Cortex A9, rendering iMX6 platforms unbootable with this
defconfig.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!

WARNING: multiple messages have this Message-ID (diff)
From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Alexander Stein <alexander.stein@ew.tq-group.com>
Cc: Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>,
	Shawn Guo <shawnguo@kernel.org>, Li Yang <leoyang.li@nxp.com>,
	Marek Vasut <marex@denx.de>,
	Marcel Ziswiler <marcel.ziswiler@toradex.com>,
	soc@kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 9/9] [DNI] ARM: multi_v7_defconfig: Enable CONFIG_ARM_LPAE for multi_v7_config
Date: Thu, 19 Jan 2023 16:00:30 +0000	[thread overview]
Message-ID: <Y8lpHhKKfRNGq1m0@shell.armlinux.org.uk> (raw)
In-Reply-To: <20230119144236.3541751-10-alexander.stein@ew.tq-group.com>

On Thu, Jan 19, 2023 at 03:42:36PM +0100, Alexander Stein wrote:
> This is necessary to support PCIe on LS1021A.
> 
> Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
> ---
>  arch/arm/configs/multi_v7_defconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
> index 441a449172368..f0757f05ec2c2 100644
> --- a/arch/arm/configs/multi_v7_defconfig
> +++ b/arch/arm/configs/multi_v7_defconfig
> @@ -105,6 +105,7 @@ CONFIG_ARCH_VEXPRESS=y
>  CONFIG_ARCH_VEXPRESS_TC2_PM=y
>  CONFIG_ARCH_WM8850=y
>  CONFIG_ARCH_ZYNQ=y
> +CONFIG_ARM_LPAE=y
>  CONFIG_SMP=y
>  CONFIG_NR_CPUS=16
>  CONFIG_ARM_APPENDED_DTB=y

Enabling LPAE will break multi_v7 on CPUs that do not support LPAE,
such as Cortex A9, rendering iMX6 platforms unbootable with this
defconfig.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!

_______________________________________________
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  parent reply	other threads:[~2023-01-19 16:00 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-19 14:42 [PATCH 0/9] TQMLS1021A support Alexander Stein
2023-01-19 14:42 ` Alexander Stein
2023-01-19 14:42 ` [PATCH 1/9] dt-bindings: arm: fsl: add TQ-Systems LS1021A board Alexander Stein
2023-01-19 14:42   ` Alexander Stein
2023-01-19 16:59   ` Krzysztof Kozlowski
2023-01-19 16:59     ` Krzysztof Kozlowski
2023-01-20  8:58     ` Alexander Stein
2023-01-20  8:58       ` Alexander Stein
2023-01-20  9:07       ` Krzysztof Kozlowski
2023-01-20  9:07         ` Krzysztof Kozlowski
2023-01-19 14:42 ` [PATCH 2/9] ARM: dts: ls1021a: add TQ-Systems MBLS102xA device tree Alexander Stein
2023-01-19 14:42   ` Alexander Stein
2023-01-19 17:03   ` Krzysztof Kozlowski
2023-01-19 17:03     ` Krzysztof Kozlowski
2023-01-20 10:08     ` Alexander Stein
2023-01-20 10:08       ` Alexander Stein
2023-01-20 10:21       ` Krzysztof Kozlowski
2023-01-20 10:21         ` Krzysztof Kozlowski
2023-01-19 14:42 ` [PATCH 3/9] ARM: dts: ls1021a: add TQMLS1021A flash partition layout Alexander Stein
2023-01-19 14:42   ` Alexander Stein
2023-01-19 14:42 ` [PATCH 4/9] ARM: dts: ls1021a: add TQMLS1021A/MBLS102xA LVDS TM070JVHG33 overlay Alexander Stein
2023-01-19 14:42   ` Alexander Stein
2023-01-19 14:42 ` [PATCH 5/9] ARM: dts: ls1021a: add TQMLS1021A/MBLS102xA HDMI overlay Alexander Stein
2023-01-19 14:42   ` Alexander Stein
2023-01-19 14:42 ` [PATCH 6/9] ARM: dts: ls1021a: add TQMLS1021A/MBLS102xA LVDS CDTECH DC44 overlay Alexander Stein
2023-01-19 14:42   ` Alexander Stein
2023-01-19 14:42 ` [PATCH 7/9] ARM: dts: ls1021a: add TQMLS1021A/MBLS102xA LVDS CDTECH FC21 overlay Alexander Stein
2023-01-19 14:42   ` Alexander Stein
2023-01-19 14:42 ` [PATCH 8/9] ARM: multi_v7_defconfig: Add options to support TQMLS102xA series Alexander Stein
2023-01-19 14:42   ` Alexander Stein
2023-01-19 17:04   ` Krzysztof Kozlowski
2023-01-19 17:04     ` Krzysztof Kozlowski
2023-01-20 11:12     ` Alexander Stein
2023-01-20 11:12       ` Alexander Stein
2023-01-20 11:35       ` Krzysztof Kozlowski
2023-01-20 11:35         ` Krzysztof Kozlowski
2023-01-20 14:57         ` Russell King (Oracle)
2023-01-20 14:57           ` Russell King (Oracle)
2023-01-21 20:27           ` Krzysztof Kozlowski
2023-01-21 20:27             ` Krzysztof Kozlowski
2023-01-21 22:33             ` Russell King (Oracle)
2023-01-21 22:33               ` Russell King (Oracle)
2023-01-19 14:42 ` [PATCH 9/9] [DNI] ARM: multi_v7_defconfig: Enable CONFIG_ARM_LPAE for multi_v7_config Alexander Stein
2023-01-19 14:42   ` Alexander Stein
2023-01-19 15:09   ` Arnd Bergmann
2023-01-19 15:09     ` Arnd Bergmann
2023-01-19 15:27     ` Alexander Stein
2023-01-19 15:27       ` Alexander Stein
2023-01-19 16:07       ` Arnd Bergmann
2023-01-19 16:07         ` Arnd Bergmann
2023-01-20 12:43         ` Alexander Stein
2023-01-20 12:43           ` Alexander Stein
2023-01-20 14:00           ` Arnd Bergmann
2023-01-20 14:00             ` Arnd Bergmann
2023-01-24 10:30             ` Alexander Stein
2023-01-24 10:30               ` Alexander Stein
2023-01-24 11:37               ` Arnd Bergmann
2023-01-24 11:37                 ` Arnd Bergmann
2023-01-19 16:00   ` Russell King (Oracle) [this message]
2023-01-19 16:00     ` Russell King (Oracle)

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