imx: make 5.15 default kernel and remove 5.10 support

In imx target we're sharing single, version agnostic kernel
`config-default` file, which doesn't work very well with current 5.10
and upcoming 5.15 kernel symbols as recent rebase onto 5.15 kernel
introduced in commit 2b395c298247 ("imx: update config for 5.15) has
introduced following regression with 5.10 kernel:

 Marvell 88E6xxx Ethernet switch fabric support (NET_DSA_MV88E6XXX) [Y/n/m/?] y
   Switch Global 2 Registers support (NET_DSA_MV88E6XXX_GLOBAL2) [Y/n/?] (NEW)

That NET_DSA_MV88E6XXX_GLOBAL2 kernel config symbol has been removed in
upstream commit 63368a7416df ("net: dsa: mv88e6xxx: Make global2 support
mandatory") in kernel version 5.12.

This issue could be probably fixed by introduction of separate kernel
config files for each currently used kernel versions and subtarget, but
it is not worth the hassle and resources as imx target is running mostly
upstream kernel, so lets fix it by switching to 5.15 version instead.

Fixes: 2b395c298247 ("imx: update config for 5.15")
Acked-by: Piotr Dymacz <pepe2k@gmail.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>

3 files changed, 0 insertions, 193 deletions

diff --git a/target/linux/imx/patches-5.10/100-bootargs.patch b/target/linux/imx/patches-5.10/100-bootargs.patch
deleted file mode 100644
index cf63a3bdb1..0000000000
--- a/target/linux/imx/patches-5.10/100-bootargs.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/arch/arm/boot/dts/imx6dl-wandboard.dts
-+++ b/arch/arm/boot/dts/imx6dl-wandboard.dts
-@@ -16,4 +16,8 @@
- 		device_type = "memory";
- 		reg = <0x10000000 0x40000000>;
- 	};
-+
-+	chosen {
-+		bootargs = "console=ttymxc0,115200";
-+	};
- };
diff --git a/target/linux/imx/patches-5.10/300-ARM-dts-imx6q-apalis-ixora-add-status-LEDs-aliases.patch b/target/linux/imx/patches-5.10/300-ARM-dts-imx6q-apalis-ixora-add-status-LEDs-aliases.patch
deleted file mode 100644
index e14dc484b0..0000000000
--- a/target/linux/imx/patches-5.10/300-ARM-dts-imx6q-apalis-ixora-add-status-LEDs-aliases.patch
+++ /dev/null
@@ -1,96 +0,0 @@
-From 68604e89335ccb3e893b5a05b2c0d5cd2eaaf6ec Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Petr=20=C5=A0tetiar?= <ynezz@true.cz>
-Date: Tue, 3 Mar 2020 15:14:40 +0100
-Subject: [PATCH] ARM: dts: imx6q-apalis: ixora: add status LEDs aliases
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Signed-off-by: Petr Štetiar <ynezz@true.cz>
----
- arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts | 16 ++++++++++------
- arch/arm/boot/dts/imx6q-apalis-ixora.dts      | 12 ++++++++----
- 2 files changed, 18 insertions(+), 10 deletions(-)
-
---- a/arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts
-+++ b/arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts
-@@ -25,6 +25,10 @@
- 		i2c2 = &i2c2;
- 		rtc0 = &rtc_i2c;
- 		rtc1 = &snvs_rtc;
-+		led-boot = &led_boot;
-+		led-failsafe = &led_failsafe;
-+		led-running = &led_running;
-+		led-upgrade = &led_upgrade;
- 	};
- 
- 	chosen {
-@@ -92,22 +96,22 @@
- 		pinctrl-names = "default";
- 		pinctrl-0 = <&pinctrl_leds_ixora>;
- 
--		led4-green {
-+		led_running: led4-green {
- 			label = "LED_4_GREEN";
--			gpios = <&gpio1 14 GPIO_ACTIVE_HIGH>;
-+			gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>;
- 		};
- 
--		led4-red {
-+		led_upgrade: led4-red {
- 			label = "LED_4_RED";
--			gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>;
-+			gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>;
- 		};
- 
--		led5-green {
-+		led_boot: led5-green {
- 			label = "LED_5_GREEN";
- 			gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
- 		};
- 
--		led5-red {
-+		led_failsafe: led5-red {
- 			label = "LED_5_RED";
- 			gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>;
- 		};
---- a/arch/arm/boot/dts/imx6q-apalis-ixora.dts
-+++ b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
-@@ -24,6 +24,10 @@
- 		i2c2 = &i2c2;
- 		rtc0 = &rtc_i2c;
- 		rtc1 = &snvs_rtc;
-+		led-boot = &led_boot;
-+		led-failsafe = &led_failsafe;
-+		led-running = &led_running;
-+		led-upgrade = &led_upgrade;
- 	};
- 
- 	chosen {
-@@ -91,22 +95,22 @@
- 		pinctrl-names = "default";
- 		pinctrl-0 = <&pinctrl_leds_ixora>;
- 
--		led4-green {
-+		led_running: led4-green {
- 			label = "LED_4_GREEN";
- 			gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>;
- 		};
- 
--		led4-red {
-+		led_upgrade: led4-red {
- 			label = "LED_4_RED";
- 			gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>;
- 		};
- 
--		led5-green {
-+		led_boot: led5-green {
- 			label = "LED_5_GREEN";
- 			gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
- 		};
- 
--		led5-red {
-+		led_failsafe: led5-red {
- 			label = "LED_5_RED";
- 			gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>;
- 		};
diff --git a/target/linux/imx/patches-5.10/301-ARM-dts-imx6q-apalis-ixora-make-switch3-reset-button.patch b/target/linux/imx/patches-5.10/301-ARM-dts-imx6q-apalis-ixora-make-switch3-reset-button.patch
deleted file mode 100644
index 8f07f0b1a5..0000000000
--- a/target/linux/imx/patches-5.10/301-ARM-dts-imx6q-apalis-ixora-make-switch3-reset-button.patch
+++ /dev/null
@@ -1,86 +0,0 @@
-From b6764bb27c819cdcf854371db485a43d71f579f3 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Petr=20=C5=A0tetiar?= <ynezz@true.cz>
-Date: Tue, 3 Mar 2020 15:15:57 +0100
-Subject: [PATCH] ARM: dts: imx6q-apalis: ixora: make switch3 reset button
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Signed-off-by: Petr Štetiar <ynezz@true.cz>
----
- arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts | 15 ++++++++++++++-
- arch/arm/boot/dts/imx6q-apalis-ixora.dts      | 15 ++++++++++++++-
- 2 files changed, 28 insertions(+), 2 deletions(-)
-
---- a/arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts
-+++ b/arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts
-@@ -38,7 +38,7 @@
- 	gpio-keys {
- 		compatible = "gpio-keys";
- 		pinctrl-names = "default";
--		pinctrl-0 = <&pinctrl_gpio_keys>;
-+		pinctrl-0 = <&pinctrl_gpio_keys &pinctrl_switch3_ixora>;
- 
- 		wakeup {
- 			label = "Wake-Up";
-@@ -47,6 +47,13 @@
- 			debounce-interval = <10>;
- 			wakeup-source;
- 		};
-+
-+		reset {
-+			label = "reset";
-+			gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
-+			linux,code = <KEY_RESTART>;
-+			debounce-interval = <10>;
-+		};
- 	};
- 
- 	lcd_display: disp0 {
-@@ -275,4 +282,10 @@
- 			MX6QDL_PAD_NANDF_D2__GPIO2_IO02 0x1b0b0
- 		>;
- 	};
-+
-+	pinctrl_switch3_ixora: switch3ixora {
-+		fsl,pins = <
-+			MX6QDL_PAD_SD1_DAT0__GPIO1_IO16 0x1b0b0
-+		>;
-+	};
- };
---- a/arch/arm/boot/dts/imx6q-apalis-ixora.dts
-+++ b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
-@@ -37,7 +37,7 @@
- 	gpio-keys {
- 		compatible = "gpio-keys";
- 		pinctrl-names = "default";
--		pinctrl-0 = <&pinctrl_gpio_keys>;
-+		pinctrl-0 = <&pinctrl_gpio_keys &pinctrl_switch3_ixora>;
- 
- 		wakeup {
- 			label = "Wake-Up";
-@@ -46,6 +46,13 @@
- 			debounce-interval = <10>;
- 			wakeup-source;
- 		};
-+
-+		reset {
-+			label = "reset";
-+			gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
-+			linux,code = <KEY_RESTART>;
-+			debounce-interval = <10>;
-+		};
- 	};
- 
- 	lcd_display: disp0 {
-@@ -276,4 +283,10 @@
- 			MX6QDL_PAD_NANDF_D2__GPIO2_IO02 0x1b0b0
- 		>;
- 	};
-+
-+	pinctrl_switch3_ixora: switch3ixora {
-+		fsl,pins = <
-+			MX6QDL_PAD_SD1_DAT0__GPIO1_IO16 0x1b0b0
-+		>;
-+	};
- };