ARM: imx: remove i.MX31 SoC support

The Freescale i.MX31 was an early SoC based on the ARM1136r0 CPU core. It
was used in the Bug Labs modular computer but ultimately much less
popular than most other i.MX SoCs.

As the ARM1136r0 support is causing a lot of extra maintenance effort
to keep alive and there are no known users, remove i.MX31 in order to
allow removing support for that CPU core altogether.

The related i.MX35 is based on a slightly newer ARM1136r1 CPU core that
does not have this problem, so there is no reason to remove that.

Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: imx@lists.linux.dev
Cc: devicetree@vger.kernel.org
Acked-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Daniel Baluta <daniel.baluta@nxp.com>
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260914140821.1805449-8-arnd@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

1 files changed, 0 insertions, 22 deletions

diff --git a/arch/arm/boot/dts/nxp/imx/imx31-bug.dts b/arch/arm/boot/dts/nxp/imx/imx31-bug.dts
deleted file mode 100644
index d87eee3f9b3c..000000000000
--- a/arch/arm/boot/dts/nxp/imx/imx31-bug.dts
+++ /dev/null
@@ -1,22 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright 2012 Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
- */
-
-/dts-v1/;
-#include "imx31.dtsi"
-
-/ {
-	model = "Buglabs i.MX31 Bug 1.x";
-	compatible = "buglabs,imx31-bug", "fsl,imx31";
-
-	memory@80000000 {
-		device_type = "memory";
-		reg = <0x80000000 0x8000000>; /* 128M */
-	};
-};
-
-&uart5 {
-	uart-has-rtscts;
-	status = "okay";
-};