kernel: remove support for kernel 4.19

We use 5.4 on all targets by default, and 4.19 has never been released
in a stable version. There is no reason to keep it.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 0 insertions, 153 deletions

diff --git a/target/linux/gemini/patches-4.19/0008-ARM-dts-Enable-Gemini-flash-access.patch b/target/linux/gemini/patches-4.19/0008-ARM-dts-Enable-Gemini-flash-access.patch
deleted file mode 100644
index 92e2e65c71..0000000000
--- a/target/linux/gemini/patches-4.19/0008-ARM-dts-Enable-Gemini-flash-access.patch
+++ /dev/null
@@ -1,153 +0,0 @@
-From 928681e6b46cb70317f7721aae8435ea89fcfd80 Mon Sep 17 00:00:00 2001
-From: Linus Walleij <linus.walleij@linaro.org>
-Date: Thu, 11 Oct 2018 20:06:23 +0200
-Subject: [PATCH] ARM: dts: Enable Gemini flash access
-
-Some Gemini platforms have a parallel NOR flash which conflicts
-with use cases reusing some of the flash lines (such as CE1)
-for GPIO.
-
-Fix this on the D-Link DIR-685 and Itian SQ201 by creating
-"enabled" and "disabled" states for the flash pin control
-handle, and rely on the flash handling code to switch this
-in and out when accessed so these lines can be used
-for GPIO when flash is not accessed, and enable flash
-access.
-
-Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
----
- arch/arm/boot/dts/gemini-dlink-dir-685.dts | 33 +++++++++++++++-------
- arch/arm/boot/dts/gemini-sq201.dts         | 31 +++++++++++---------
- 2 files changed, 40 insertions(+), 24 deletions(-)
-
---- a/arch/arm/boot/dts/gemini-dlink-dir-685.dts
-+++ b/arch/arm/boot/dts/gemini-dlink-dir-685.dts
-@@ -64,7 +64,6 @@
- 		gpio-sck = <&gpio1 5 GPIO_ACTIVE_HIGH>;
- 		gpio-miso = <&gpio1 8 GPIO_ACTIVE_HIGH>;
- 		gpio-mosi = <&gpio1 7 GPIO_ACTIVE_HIGH>;
--		/* Collides with pflash CE1, not so cool */
- 		cs-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>;
- 		num-chipselects = <1>;
- 
-@@ -253,15 +252,18 @@
- 	soc {
- 		flash@30000000 {
- 			/*
--			 * Flash access is by default disabled, because it
--			 * collides with the Chip Enable signal for the display
--			 * panel, that reuse the parallel flash Chip Select 1
--			 * (CS1). Enabling flash makes graphics stop working.
--			 *
--			 * We might be able to hack around this by letting
--			 * GPIO poke around in the flash controller registers.
-+			 * Flash access collides with the Chip Enable signal for
-+			 * the display panel, that reuse the parallel flash Chip
-+			 * Select 1 (CS1). We switch the pin control state so we
-+			 * enable these pins for flash access only when we need
-+			 * then, and when disabled they can be used for GPIO which
-+			 * is what the display panel needs.
- 			 */
--			/* status = "okay"; */
-+			status = "okay";
-+			pinctrl-names = "enabled", "disabled";
-+			pinctrl-0 = <&pflash_default_pins>;
-+			pinctrl-1 = <&pflash_disabled_pins>;
-+
- 			/* 32MB of flash */
- 			reg = <0x30000000 0x02000000>;
- 
-@@ -327,7 +329,6 @@
- 						"gpio0cgrp",
- 						"gpio0egrp",
- 						"gpio0fgrp",
--						"gpio0ggrp",
- 						"gpio0hgrp";
- 					};
- 				};
-@@ -342,6 +343,18 @@
- 						groups = "gpio1bgrp";
- 					};
- 				};
-+				/*
-+				 * These GPIO groups will be mapped in over some
-+				 * of the flash pins when the flash is not in
-+				 * active use.
-+				 */
-+				pflash_disabled_pins: pinctrl-pflash-disabled {
-+					mux {
-+						function = "gpio0";
-+						groups = "gpio0ggrp", "gpio0igrp", "gpio0jgrp",
-+							 "gpio0kgrp";
-+					};
-+				};
- 				pinctrl-gmii {
- 					mux {
- 						function = "gmii";
---- a/arch/arm/boot/dts/gemini-sq201.dts
-+++ b/arch/arm/boot/dts/gemini-sq201.dts
-@@ -41,14 +41,12 @@
- 		compatible = "gpio-leds";
- 		led-green-info {
- 			label = "sq201:green:info";
--			/* Conflict with parallel flash */
- 			gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
- 			default-state = "on";
- 			linux,default-trigger = "heartbeat";
- 		};
- 		led-green-usb {
- 			label = "sq201:green:usb";
--			/* Conflict with parallel and NAND flash */
- 			gpios = <&gpio0 31 GPIO_ACTIVE_HIGH>;
- 			default-state = "off";
- 			linux,default-trigger = "usb-host";
-@@ -126,15 +124,10 @@
- 
- 	soc {
- 		flash@30000000 {
--			/*
--			 * Flash access can be enabled, with the side effect
--			 * of disabling access to GPIO LED on GPIO0[20] which
--			 * reuse one of the parallel flash chip select lines.
--			 * Also the default firmware on the machine has the
--			 * problem that since it uses the flash, the two LEDS
--			 * on the right become numb.
--			 */
--			/* status = "okay"; */
-+			status = "okay";
-+			pinctrl-names = "enabled", "disabled";
-+			pinctrl-0 = <&pflash_default_pins>;
-+			pinctrl-1 = <&pflash_disabled_pins>;
- 			/* 16MB of flash */
- 			reg = <0x30000000 0x01000000>;
- 
-@@ -157,9 +150,7 @@
- 					mux {
- 						function = "gpio0";
- 						groups = "gpio0fgrp",
--						"gpio0ggrp",
--						"gpio0hgrp",
--						"gpio0kgrp";
-+						"gpio0hgrp";
- 					};
- 				};
- 				/*
-@@ -172,6 +163,18 @@
- 						groups = "gpio1dgrp";
- 					};
- 				};
-+				/*
-+				 * These GPIO groups will be mapped in over some
-+				 * of the flash pins when the flash is not in
-+				 * active use.
-+				 */
-+				pflash_disabled_pins: pinctrl-pflash-disabled {
-+					mux {
-+						function = "gpio0";
-+						groups = "gpio0ggrp", "gpio0igrp", "gpio0jgrp",
-+							 "gpio0kgrp";
-+					};
-+				};
- 				pinctrl-gmii {
- 					mux {
- 						function = "gmii";