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, 131 deletions

diff --git a/target/linux/gemini/patches-4.19/0016-usb-host-fotg2-add-Gemini-specific-handling.patch b/target/linux/gemini/patches-4.19/0016-usb-host-fotg2-add-Gemini-specific-handling.patch
deleted file mode 100644
index f30ee7991e..0000000000
--- a/target/linux/gemini/patches-4.19/0016-usb-host-fotg2-add-Gemini-specific-handling.patch
+++ /dev/null
@@ -1,131 +0,0 @@
-From b331ae758123ba20ba41199e007ac33fc0f242e3 Mon Sep 17 00:00:00 2001
-From: Linus Walleij <linus.walleij@linaro.org>
-Date: Fri, 21 Apr 2017 22:19:00 +0200
-Subject: [PATCH 16/18] usb: host: fotg2: add Gemini-specific handling
-
-The Cortina Systems Gemini has bolted on a PHY inside the
-silicon that can be handled by six bits in a MISC register in
-the system controller.
-
-If we are running on Gemini, look up a syscon regmap through
-a phandle and enable VBUS and optionally the Mini-B connector.
-
-If the device is flagged as "wakeup-source" using the standard
-DT bindings, we also enable this in the global controller for
-respective port.
-
-Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
----
- drivers/usb/host/Kconfig       |  1 +
- drivers/usb/host/fotg210-hcd.c | 76 ++++++++++++++++++++++++++++++++++
- 2 files changed, 77 insertions(+)
-
---- a/drivers/usb/host/Kconfig
-+++ b/drivers/usb/host/Kconfig
-@@ -372,6 +372,7 @@ config USB_ISP1362_HCD
- config USB_FOTG210_HCD
- 	tristate "FOTG210 HCD support"
- 	depends on USB && HAS_DMA && HAS_IOMEM
-+	select MFD_SYSCON
- 	---help---
- 	  Faraday FOTG210 is an OTG controller which can be configured as
- 	  an USB2.0 host. It is designed to meet USB2.0 EHCI specification
---- a/drivers/usb/host/fotg210-hcd.c
-+++ b/drivers/usb/host/fotg210-hcd.c
-@@ -33,6 +33,10 @@
- #include <linux/platform_device.h>
- #include <linux/io.h>
- #include <linux/clk.h>
-+#include <linux/bitops.h>
-+/* For Cortina Gemini */
-+#include <linux/mfd/syscon.h>
-+#include <linux/regmap.h>
- 
- #include <asm/byteorder.h>
- #include <asm/irq.h>
-@@ -5558,6 +5562,72 @@ static void fotg210_init(struct fotg210_
- 	iowrite32(value, &fotg210->regs->otgcsr);
- }
- 
-+/*
-+ * Gemini-specific initialization function, only executed on the
-+ * Gemini SoC using the global misc control register.
-+ */
-+#define GEMINI_GLOBAL_MISC_CTRL		0x30
-+#define GEMINI_MISC_USB0_WAKEUP		BIT(14)
-+#define GEMINI_MISC_USB1_WAKEUP		BIT(15)
-+#define GEMINI_MISC_USB0_VBUS_ON	BIT(22)
-+#define GEMINI_MISC_USB1_VBUS_ON	BIT(23)
-+#define GEMINI_MISC_USB0_MINI_B		BIT(29)
-+#define GEMINI_MISC_USB1_MINI_B		BIT(30)
-+
-+static int fotg210_gemini_init(struct device *dev, struct usb_hcd *hcd)
-+{
-+	struct device_node *np = dev->of_node;
-+	struct regmap *map;
-+	bool mini_b;
-+	bool wakeup;
-+	u32 mask, val;
-+	int ret;
-+
-+	map = syscon_regmap_lookup_by_phandle(np, "syscon");
-+	if (IS_ERR(map)) {
-+		dev_err(dev, "no syscon\n");
-+		return PTR_ERR(map);
-+	}
-+	mini_b = of_property_read_bool(np, "cortina,gemini-mini-b");
-+	wakeup = of_property_read_bool(np, "wakeup-source");
-+
-+	/*
-+	 * Figure out if this is USB0 or USB1 by simply checking the
-+	 * physical base address.
-+	 */
-+	mask = 0;
-+	if (hcd->rsrc_start == 0x69000000) {
-+		val = GEMINI_MISC_USB1_VBUS_ON;
-+		if (mini_b)
-+			val |= GEMINI_MISC_USB1_MINI_B;
-+		else
-+			mask |= GEMINI_MISC_USB1_MINI_B;
-+		if (wakeup)
-+			val |= GEMINI_MISC_USB1_WAKEUP;
-+		else
-+			mask |= GEMINI_MISC_USB1_WAKEUP;
-+	} else {
-+		val = GEMINI_MISC_USB0_VBUS_ON;
-+		if (mini_b)
-+			val |= GEMINI_MISC_USB0_MINI_B;
-+		else
-+			mask |= GEMINI_MISC_USB0_MINI_B;
-+		if (wakeup)
-+			val |= GEMINI_MISC_USB0_WAKEUP;
-+		else
-+			mask |= GEMINI_MISC_USB0_WAKEUP;
-+	}
-+
-+	ret = regmap_update_bits(map, GEMINI_GLOBAL_MISC_CTRL, mask, val);
-+	if (ret) {
-+		dev_err(dev, "failed to initialize Gemini PHY\n");
-+		return ret;
-+	}
-+
-+	dev_info(dev, "initialized Gemini PHY\n");
-+	return 0;
-+}
-+
- /**
-  * fotg210_hcd_probe - initialize faraday FOTG210 HCDs
-  *
-@@ -5635,6 +5705,12 @@ static int fotg210_hcd_probe(struct plat
- 
- 	fotg210_init(fotg210);
- 
-+	if (of_device_is_compatible(dev->of_node, "cortina,gemini-usb")) {
-+		retval = fotg210_gemini_init(dev, hcd);
-+		if (retval)
-+			goto failed_dis_clk;
-+	}
-+
- 	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
- 	if (retval) {
- 		dev_err(dev, "failed to add hcd with err %d\n", retval);