kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

1 files changed, 0 insertions, 199 deletions

diff --git a/target/linux/generic/backport-5.4/025-power-reset-add-driver-for-LinkStation-power-off.patch b/target/linux/generic/backport-5.4/025-power-reset-add-driver-for-LinkStation-power-off.patch
deleted file mode 100644
index 7bf48c3405..0000000000
--- a/target/linux/generic/backport-5.4/025-power-reset-add-driver-for-LinkStation-power-off.patch
+++ /dev/null
@@ -1,199 +0,0 @@
-From a7f79f99541eff4e6bcae0014eb08d3019337565 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Daniel=20Gonz=C3=A1lez=20Cabanelas?= <dgcbueu@gmail.com>
-Date: Wed, 15 Jul 2020 15:35:14 +0200
-Subject: [PATCH] power: reset: add driver for LinkStation power off
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Some Buffalo LinkStations perform the power off operation, at restart
-time, depending on the state of an output pin (LED2/INTn) at the ethernet
-PHY. This pin is also used to wake the machine when a WoL packet is
-received by the PHY.
-
-The driver is required by the Buffalo LinkStation LS421DE (ARM MVEBU),
-and other models. Without it, the board remains forever halted if a
-power off command is executed, unless the PSU is disconnected and
-connected again.
-
-Add the driver to provide the power off function and also make the WoL
-feature to be available.
-
-Signed-off-by: Daniel González Cabanelas <dgcbueu@gmail.com>
-Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
----
- drivers/power/reset/Kconfig                |  11 ++
- drivers/power/reset/Makefile               |   1 +
- drivers/power/reset/linkstation-poweroff.c | 136 +++++++++++++++++++++
- 3 files changed, 148 insertions(+)
- create mode 100644 drivers/power/reset/linkstation-poweroff.c
-
---- a/drivers/power/reset/Kconfig
-+++ b/drivers/power/reset/Kconfig
-@@ -99,6 +99,17 @@ config POWER_RESET_HISI
- 	help
- 	  Reboot support for Hisilicon boards.
- 
-+config POWER_RESET_LINKSTATION
-+	tristate "Buffalo LinkStation power-off driver"
-+	depends on ARCH_MVEBU || COMPILE_TEST
-+	depends on OF_MDIO && PHYLIB
-+	help
-+	  This driver supports turning off some Buffalo LinkStations by
-+	  setting an output pin at the ethernet PHY to the correct state.
-+	  It also makes the device compatible with the WoL function.
-+
-+	  Say Y here if you have a Buffalo LinkStation LS421D/E.
-+
- config POWER_RESET_MSM
- 	bool "Qualcomm MSM power-off driver"
- 	depends on ARCH_QCOM
---- a/drivers/power/reset/Makefile
-+++ b/drivers/power/reset/Makefile
-@@ -10,6 +10,7 @@ obj-$(CONFIG_POWER_RESET_GEMINI_POWEROFF
- obj-$(CONFIG_POWER_RESET_GPIO) += gpio-poweroff.o
- obj-$(CONFIG_POWER_RESET_GPIO_RESTART) += gpio-restart.o
- obj-$(CONFIG_POWER_RESET_HISI) += hisi-reboot.o
-+obj-${CONFIG_POWER_RESET_LINKSTATION} += linkstation-poweroff.o
- obj-$(CONFIG_POWER_RESET_MSM) += msm-poweroff.o
- obj-$(CONFIG_POWER_RESET_QCOM_PON) += qcom-pon.o
- obj-$(CONFIG_POWER_RESET_OCELOT_RESET) += ocelot-reset.o
---- /dev/null
-+++ b/drivers/power/reset/linkstation-poweroff.c
-@@ -0,0 +1,136 @@
-+// SPDX-License-Identifier: GPL-2.0
-+/*
-+ * LinkStation power off restart driver
-+ * Copyright (C) 2020 Daniel González Cabanelas <dgcbueu@gmail.com>
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/notifier.h>
-+#include <linux/of.h>
-+#include <linux/of_mdio.h>
-+#include <linux/of_platform.h>
-+#include <linux/reboot.h>
-+#include <linux/phy.h>
-+
-+/* Defines from the eth phy Marvell driver */
-+#define MII_MARVELL_COPPER_PAGE		0
-+#define MII_MARVELL_LED_PAGE		3
-+#define MII_MARVELL_WOL_PAGE		17
-+#define MII_MARVELL_PHY_PAGE		22
-+
-+#define MII_PHY_LED_CTRL		16
-+#define MII_88E1318S_PHY_LED_TCR	18
-+#define MII_88E1318S_PHY_WOL_CTRL	16
-+#define MII_M1011_IEVENT		19
-+
-+#define MII_88E1318S_PHY_LED_TCR_INTn_ENABLE		BIT(7)
-+#define MII_88E1318S_PHY_LED_TCR_FORCE_INT		BIT(15)
-+#define MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS	BIT(12)
-+#define LED2_FORCE_ON					(0x8 << 8)
-+#define LEDMASK						GENMASK(11,8)
-+
-+static struct phy_device *phydev;
-+
-+static void mvphy_reg_intn(u16 data)
-+{
-+	int rc = 0, saved_page;
-+
-+	saved_page = phy_select_page(phydev, MII_MARVELL_LED_PAGE);
-+	if (saved_page < 0)
-+		goto err;
-+
-+	/* Force manual LED2 control to let INTn work */
-+	__phy_modify(phydev, MII_PHY_LED_CTRL, LEDMASK, LED2_FORCE_ON);
-+
-+	/* Set the LED[2]/INTn pin to the required state */
-+	__phy_modify(phydev, MII_88E1318S_PHY_LED_TCR,
-+		     MII_88E1318S_PHY_LED_TCR_FORCE_INT,
-+		     MII_88E1318S_PHY_LED_TCR_INTn_ENABLE | data);
-+
-+	if (!data) {
-+		/* Clear interrupts to ensure INTn won't be holded in high state */
-+		__phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_MARVELL_COPPER_PAGE);
-+		__phy_read(phydev, MII_M1011_IEVENT);
-+
-+		/* If WOL was enabled and a magic packet was received before powering
-+		 * off, we won't be able to wake up by sending another magic packet.
-+		 * Clear WOL status.
-+		 */
-+		__phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_MARVELL_WOL_PAGE);
-+		__phy_set_bits(phydev, MII_88E1318S_PHY_WOL_CTRL,
-+			       MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS);
-+	}
-+err:
-+	rc = phy_restore_page(phydev, saved_page, rc);
-+	if (rc < 0)
-+		dev_err(&phydev->mdio.dev, "Write register failed, %d\n", rc);
-+}
-+
-+static int linkstation_reboot_notifier(struct notifier_block *nb,
-+				       unsigned long action, void *unused)
-+{
-+	if (action == SYS_RESTART)
-+		mvphy_reg_intn(MII_88E1318S_PHY_LED_TCR_FORCE_INT);
-+
-+	return NOTIFY_DONE;
-+}
-+
-+static struct notifier_block linkstation_reboot_nb = {
-+	.notifier_call = linkstation_reboot_notifier,
-+};
-+
-+static void linkstation_poweroff(void)
-+{
-+	unregister_reboot_notifier(&linkstation_reboot_nb);
-+	mvphy_reg_intn(0);
-+
-+	kernel_restart("Power off");
-+}
-+
-+static const struct of_device_id ls_poweroff_of_match[] = {
-+	{ .compatible = "buffalo,ls421d" },
-+	{ .compatible = "buffalo,ls421de" },
-+	{ },
-+};
-+
-+static int __init linkstation_poweroff_init(void)
-+{
-+	struct mii_bus *bus;
-+	struct device_node *dn;
-+
-+	dn = of_find_matching_node(NULL, ls_poweroff_of_match);
-+	if (!dn)
-+		return -ENODEV;
-+	of_node_put(dn);
-+
-+	dn = of_find_node_by_name(NULL, "mdio");
-+	if (!dn)
-+		return -ENODEV;
-+
-+	bus = of_mdio_find_bus(dn);
-+	of_node_put(dn);
-+	if (!bus)
-+		return -EPROBE_DEFER;
-+
-+	phydev = phy_find_first(bus);
-+	if (!phydev)
-+		return -EPROBE_DEFER;
-+
-+	register_reboot_notifier(&linkstation_reboot_nb);
-+	pm_power_off = linkstation_poweroff;
-+
-+	return 0;
-+}
-+
-+static void __exit linkstation_poweroff_exit(void)
-+{
-+	pm_power_off = NULL;
-+	unregister_reboot_notifier(&linkstation_reboot_nb);
-+}
-+
-+module_init(linkstation_poweroff_init);
-+module_exit(linkstation_poweroff_exit);
-+
-+MODULE_AUTHOR("Daniel González Cabanelas <dgcbueu@gmail.com>");
-+MODULE_DESCRIPTION("LinkStation power off driver");
-+MODULE_LICENSE("GPL v2");