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>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 364 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0308-staging-fsl_ppfe-add-support-for-a-char-dev-for-link.patch b/target/linux/layerscape/patches-5.4/701-net-0308-staging-fsl_ppfe-add-support-for-a-char-dev-for-link.patch
deleted file mode 100644
index c445952222..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0308-staging-fsl_ppfe-add-support-for-a-char-dev-for-link.patch
+++ /dev/null
@@ -1,364 +0,0 @@
-From a41d4af2ed4b02edca9d7f69955893d407274dc2 Mon Sep 17 00:00:00 2001
-From: Shreyansh Jain <shreyansh.jain@nxp.com>
-Date: Wed, 6 Jun 2018 14:19:34 +0530
-Subject: [PATCH] staging: fsl_ppfe: add support for a char dev for link status
-
-Read and IOCTL support is added. Application would need to open,
-read/ioctl the /dev/pfe_us_cdev device.
-select is pending as it requires a wait_queue.
-
-Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
-Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
----
- drivers/staging/fsl_ppfe/Makefile   |   3 +-
- drivers/staging/fsl_ppfe/pfe_cdev.c | 207 ++++++++++++++++++++++++++++++++++++
- drivers/staging/fsl_ppfe/pfe_cdev.h |  52 +++++++++
- drivers/staging/fsl_ppfe/pfe_eth.c  |  14 +++
- drivers/staging/fsl_ppfe/pfe_mod.c  |  14 +++
- 5 files changed, 289 insertions(+), 1 deletion(-)
- create mode 100644 drivers/staging/fsl_ppfe/pfe_cdev.c
- create mode 100644 drivers/staging/fsl_ppfe/pfe_cdev.h
-
---- a/drivers/staging/fsl_ppfe/Makefile
-+++ b/drivers/staging/fsl_ppfe/Makefile
-@@ -16,4 +16,5 @@ pfe-y += pfe_mod.o \
- 	pfe_sysfs.o \
- 	pfe_debugfs.o \
- 	pfe_ls1012a_platform.o \
--	pfe_hal.o
-+	pfe_hal.o \
-+	pfe_cdev.o
---- /dev/null
-+++ b/drivers/staging/fsl_ppfe/pfe_cdev.c
-@@ -0,0 +1,207 @@
-+/*
-+ * Copyright 2018 NXP
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License as published by
-+ * the Free Software Foundation; either version 2 of the License, or
-+ * (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
-+ */
-+
-+/* @pfe_cdev.c.
-+ *  Dummy device representing the PFE US in userspace.
-+ *  - used for interacting with the kernel layer for link status
-+ */
-+
-+#include "pfe_cdev.h"
-+
-+static int pfe_majno;
-+static struct class *pfe_char_class;
-+static struct device *pfe_char_dev;
-+
-+struct pfe_shared_info link_states[PFE_CDEV_ETH_COUNT];
-+
-+static int pfe_cdev_open(struct inode *inp, struct file *fp)
-+{
-+	pr_debug("PFE CDEV device opened.\n");
-+	return 0;
-+}
-+
-+static ssize_t pfe_cdev_read(struct file *fp, char *buf,
-+			     size_t len, loff_t *off)
-+{
-+	int ret = 0;
-+
-+	pr_info("PFE CDEV attempt copying (%lu) size of user.\n",
-+		sizeof(link_states));
-+
-+	pr_debug("Dump link_state on screen before copy_to_user\n");
-+	for (; ret < PFE_CDEV_ETH_COUNT; ret++) {
-+		pr_debug("%u  %u", link_states[ret].phy_id,
-+			 link_states[ret].state);
-+		pr_debug("\n");
-+	}
-+
-+	/* Copy to user the value in buffer sized len */
-+	ret = copy_to_user(buf, &link_states, sizeof(link_states));
-+	if (ret != 0) {
-+		pr_err("Failed to send (%d)bytes of (%lu) requested.\n",
-+		       ret, len);
-+		return -EFAULT;
-+	}
-+
-+	/* offset set back to 0 as there is contextual reading offset */
-+	*off = 0;
-+	pr_debug("Read of (%lu) bytes performed.\n", sizeof(link_states));
-+
-+	return sizeof(link_states);
-+}
-+
-+/**
-+ * This function is for getting some commands from user through non-IOCTL
-+ * channel. It can used to configure the device.
-+ * TODO: To be filled in future, if require duplex communication with user
-+ * space.
-+ */
-+static ssize_t pfe_cdev_write(struct file *fp, const char *buf,
-+			      size_t len, loff_t *off)
-+{
-+	pr_info("PFE CDEV Write operation not supported!\n");
-+
-+	return -EFAULT;
-+}
-+
-+static int pfe_cdev_release(struct inode *inp, struct file *fp)
-+{
-+	pr_info("PFE_CDEV: Device successfully closed\n");
-+	return 0;
-+}
-+
-+static long pfe_cdev_ioctl(struct file *fp, unsigned int cmd,
-+			   unsigned long arg)
-+{
-+	int ret = -EFAULT;
-+	int __user *argp = (int __user *)arg;
-+
-+	pr_debug("PFE CDEV IOCTL Called with cmd=(%u)\n", cmd);
-+
-+	switch (cmd) {
-+	case PFE_CDEV_ETH0_STATE_GET:
-+		/* Return an unsigned int (link state) for ETH0 */
-+		*argp = link_states[0].state;
-+		pr_debug("Returning state=%d for ETH0\n", *argp);
-+		ret = 0;
-+		break;
-+	case PFE_CDEV_ETH1_STATE_GET:
-+		/* Return an unsigned int (link state) for ETH0 */
-+		*argp = link_states[1].state;
-+		pr_debug("Returning state=%d for ETH1\n", *argp);
-+		ret = 0;
-+		break;
-+	default:
-+		pr_info("Unsupport cmd (%d) for PFE CDEV.\n", cmd);
-+		break;
-+	};
-+
-+	return ret;
-+}
-+
-+static unsigned int pfe_cdev_poll(struct file *fp,
-+				  struct poll_table_struct *wait)
-+{
-+	pr_info("PFE CDEV poll method not supported\n");
-+	return 0;
-+}
-+
-+static const struct file_operations pfe_cdev_fops = {
-+	.open = pfe_cdev_open,
-+	.read = pfe_cdev_read,
-+	.write = pfe_cdev_write,
-+	.release = pfe_cdev_release,
-+	.unlocked_ioctl = pfe_cdev_ioctl,
-+	.poll = pfe_cdev_poll,
-+};
-+
-+int pfe_cdev_init(void)
-+{
-+	int ret;
-+
-+	pr_debug("PFE CDEV initialization begin\n");
-+
-+	/* Register the major number for the device */
-+	pfe_majno = register_chrdev(0, PFE_CDEV_NAME, &pfe_cdev_fops);
-+	if (pfe_majno < 0) {
-+		pr_err("Unable to register PFE CDEV. PFE CDEV not available\n");
-+		ret = pfe_majno;
-+		goto cleanup;
-+	}
-+
-+	pr_debug("PFE CDEV assigned major number: %d\n", pfe_majno);
-+
-+	/* Register the class for the device */
-+	pfe_char_class = class_create(THIS_MODULE, PFE_CLASS_NAME);
-+	if (IS_ERR(pfe_char_class)) {
-+		pr_err(
-+		"Failed to init class for PFE CDEV. PFE CDEV not available.\n");
-+		goto cleanup;
-+	}
-+
-+	pr_debug("PFE CDEV Class created successfully.\n");
-+
-+	/* Create the device without any parent and without any callback data */
-+	    pfe_char_dev = device_create(pfe_char_class, NULL,
-+					 MKDEV(pfe_majno, 0), NULL,
-+					 PFE_CDEV_NAME);
-+	if (IS_ERR(pfe_char_dev)) {
-+		pr_err("Unable to PFE CDEV device. PFE CDEV not available.\n");
-+		ret = PTR_ERR(pfe_char_dev);
-+		goto cleanup;
-+	}
-+
-+	/* Information structure being shared with the userspace */
-+	memset(link_states, 0, sizeof(struct pfe_shared_info) *
-+			PFE_CDEV_ETH_COUNT);
-+
-+	pr_info("PFE CDEV created: %s\n", PFE_CDEV_NAME);
-+
-+	ret = 0;
-+	return ret;
-+
-+cleanup:
-+	if (!IS_ERR(pfe_char_class))
-+		class_destroy(pfe_char_class);
-+
-+	if (pfe_majno > 0)
-+		unregister_chrdev(pfe_majno, PFE_CDEV_NAME);
-+
-+	ret = -EFAULT;
-+	return ret;
-+}
-+
-+void pfe_cdev_exit(void)
-+{
-+	if (!IS_ERR(pfe_char_dev))
-+		device_destroy(pfe_char_class, MKDEV(pfe_majno, 0));
-+
-+	if (!IS_ERR(pfe_char_class)) {
-+		class_unregister(pfe_char_class);
-+		class_destroy(pfe_char_class);
-+	}
-+
-+	if (pfe_majno > 0)
-+		unregister_chrdev(pfe_majno, PFE_CDEV_NAME);
-+
-+	/* reset the variables */
-+	pfe_majno = 0;
-+	pfe_char_class = NULL;
-+	pfe_char_dev = NULL;
-+
-+	pr_info("PFE CDEV Removed.\n");
-+}
---- /dev/null
-+++ b/drivers/staging/fsl_ppfe/pfe_cdev.h
-@@ -0,0 +1,52 @@
-+/*
-+ * Copyright 2018 NXP
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License as published by
-+ * the Free Software Foundation; either version 2 of the License, or
-+ * (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
-+ */
-+
-+#ifndef _PFE_CDEV_H_
-+#define _PFE_CDEV_H_
-+
-+#include <linux/init.h>
-+#include <linux/device.h>
-+#include <linux/err.h>
-+#include <linux/kernel.h>
-+#include <linux/fs.h>
-+#include <linux/uaccess.h>
-+#include <linux/poll.h>
-+
-+#define  PFE_CDEV_NAME "pfe_us_cdev"
-+#define  PFE_CLASS_NAME  "ppfe_us"
-+
-+/* Extracted from ls1012a_pfe_platform_data, there are 3 interfaces which are
-+ * supported by PFE driver. Should be updated if number of eth devices are
-+ * changed.
-+ */
-+#define PFE_CDEV_ETH_COUNT 3
-+
-+struct pfe_shared_info {
-+	uint32_t phy_id; /* Link phy ID */
-+	uint8_t state;  /* Has either 0 or 1 */
-+};
-+
-+extern struct pfe_shared_info link_states[PFE_CDEV_ETH_COUNT];
-+
-+/* IOCTL Commands */
-+#define PFE_CDEV_ETH0_STATE_GET	0
-+#define PFE_CDEV_ETH1_STATE_GET	1
-+
-+int pfe_cdev_init(void);
-+void pfe_cdev_exit(void);
-+
-+#endif /* _PFE_CDEV_H_ */
---- a/drivers/staging/fsl_ppfe/pfe_eth.c
-+++ b/drivers/staging/fsl_ppfe/pfe_eth.c
-@@ -55,6 +55,7 @@
- 
- #include "pfe_mod.h"
- #include "pfe_eth.h"
-+#include "pfe_cdev.h"
- 
- #define LS1012A_REV_1_0		0x87040010
- 
-@@ -1160,6 +1161,19 @@ static void pfe_eth_adjust_link(struct n
- 		phy_print_status(phydev);
- 
- 	spin_unlock_irqrestore(&priv->lock, flags);
-+
-+	/* Now, dump the details to the cdev.
-+	 * XXX: Locking would be required? (uniprocess arch)
-+	 *      Or, maybe move it in spinlock above
-+	 */
-+	if (us && priv->einfo->gem_id < PFE_CDEV_ETH_COUNT) {
-+		pr_debug("Changing link state from (%u) to (%u) for ID=(%u)\n",
-+			 link_states[priv->einfo->gem_id].state,
-+			 phydev->link,
-+			 priv->einfo->gem_id);
-+		link_states[priv->einfo->gem_id].phy_id = priv->einfo->gem_id;
-+		link_states[priv->einfo->gem_id].state = phydev->link;
-+	}
- }
- 
- /* pfe_phy_exit
---- a/drivers/staging/fsl_ppfe/pfe_mod.c
-+++ b/drivers/staging/fsl_ppfe/pfe_mod.c
-@@ -18,6 +18,7 @@
- 
- #include <linux/dma-mapping.h>
- #include "pfe_mod.h"
-+#include "pfe_cdev.h"
- 
- unsigned int us;
- module_param(us, uint, 0444);
-@@ -92,8 +93,18 @@ firmware_init:
- 	if (rc < 0)
- 		goto err_debugfs;
- 
-+	if (us) {
-+		/* Creating a character device */
-+		rc = pfe_cdev_init();
-+		if (rc < 0)
-+			goto err_cdev;
-+	}
-+
- 	return 0;
- 
-+err_cdev:
-+	pfe_debugfs_exit(pfe);
-+
- err_debugfs:
- 	pfe_sysfs_exit(pfe);
- 
-@@ -129,6 +140,9 @@ int pfe_remove(struct pfe *pfe)
- {
- 	pr_info("%s\n", __func__);
- 
-+	if (us)
-+		pfe_cdev_exit();
-+
- 	pfe_debugfs_exit(pfe);
- 
- 	pfe_sysfs_exit(pfe);