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, 371 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0131-bus-fsl-mc-add-fsl-mc-userspace-support.patch b/target/linux/layerscape/patches-5.4/701-net-0131-bus-fsl-mc-add-fsl-mc-userspace-support.patch
deleted file mode 100644
index 106ce0dd8e..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0131-bus-fsl-mc-add-fsl-mc-userspace-support.patch
+++ /dev/null
@@ -1,371 +0,0 @@
-From 5b5567547d0088ec96160634c4e342bb06e52f19 Mon Sep 17 00:00:00 2001
-From: Ioana Ciornei <ioana.ciornei@nxp.com>
-Date: Wed, 14 Mar 2018 19:25:27 +0200
-Subject: [PATCH] bus: fsl-mc: add fsl-mc userspace support
-
-Adding userspace support for the MC (Management Complex) means exporting
-an ioctl capable device file representing the root resource container.
-
-This new functionality in the fsl-mc bus driver intends to provide
-userspace applications an interface to interact with the MC firmware.
-
-Commands that are composed in userspace are sent to the MC firmware
-through the FSL_MC_SEND_MC_COMMAND ioctl.  By default the implicit MC
-I/O portal is used for this operation, but if the implicit one is busy,
-a dynamic portal is allocated and then freed upon execution.
-
-Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
----
- Documentation/ioctl/ioctl-number.rst |   1 +
- drivers/bus/fsl-mc/Kconfig           |   7 ++
- drivers/bus/fsl-mc/Makefile          |   3 +
- drivers/bus/fsl-mc/dprc-driver.c     |  14 ++-
- drivers/bus/fsl-mc/fsl-mc-private.h  |  39 ++++++++
- drivers/bus/fsl-mc/fsl-mc-uapi.c     | 168 +++++++++++++++++++++++++++++++++++
- include/uapi/linux/fsl_mc.h          |   9 ++
- 7 files changed, 240 insertions(+), 1 deletion(-)
- create mode 100644 drivers/bus/fsl-mc/fsl-mc-uapi.c
-
---- a/Documentation/ioctl/ioctl-number.rst
-+++ b/Documentation/ioctl/ioctl-number.rst
-@@ -180,6 +180,7 @@ Code  Seq#    Include File
- 'R'   00-1F  linux/random.h                                          conflict!
- 'R'   01     linux/rfkill.h                                          conflict!
- 'R'   C0-DF  net/bluetooth/rfcomm.h
-+'R'   E0     uapi/linux/fsl_mc.h
- 'S'   all    linux/cdrom.h                                           conflict!
- 'S'   80-81  scsi/scsi_ioctl.h                                       conflict!
- 'S'   82-FF  scsi/scsi.h                                             conflict!
---- a/drivers/bus/fsl-mc/Kconfig
-+++ b/drivers/bus/fsl-mc/Kconfig
-@@ -14,3 +14,10 @@ config FSL_MC_BUS
- 	  architecture.  The fsl-mc bus driver handles discovery of
- 	  DPAA2 objects (which are represented as Linux devices) and
- 	  binding objects to drivers.
-+
-+config FSL_MC_UAPI_SUPPORT
-+	bool "Management Complex (MC) userspace support"
-+	depends on FSL_MC_BUS
-+	help
-+	  Provides userspace support for creating/destroying/configuring
-+	  DPAA2 objects in the Management Complex.
---- a/drivers/bus/fsl-mc/Makefile
-+++ b/drivers/bus/fsl-mc/Makefile
-@@ -16,3 +16,6 @@ mc-bus-driver-objs := fsl-mc-bus.o \
- 		      fsl-mc-allocator.o \
- 		      fsl-mc-msi.o \
- 		      dpmcp.o
-+
-+# MC userspace support
-+obj-$(CONFIG_FSL_MC_UAPI_SUPPORT) += fsl-mc-uapi.o
---- a/drivers/bus/fsl-mc/dprc-driver.c
-+++ b/drivers/bus/fsl-mc/dprc-driver.c
-@@ -647,6 +647,12 @@ static int dprc_probe(struct fsl_mc_devi
- 		} else {
- 			dev_set_msi_domain(&mc_dev->dev, mc_msi_domain);
- 			msi_domain_set = true;
-+
-+			error = fsl_mc_uapi_create_device_file(mc_bus);
-+			if (error < 0) {
-+				error = -EPROBE_DEFER;
-+				goto error_cleanup_msi_domain;
-+			}
- 		}
- 	}
- 
-@@ -654,7 +660,7 @@ static int dprc_probe(struct fsl_mc_devi
- 			  &mc_dev->mc_handle);
- 	if (error < 0) {
- 		dev_err(&mc_dev->dev, "dprc_open() failed: %d\n", error);
--		goto error_cleanup_msi_domain;
-+		goto error_cleanup_uapi;
- 	}
- 
- 	error = dprc_get_attributes(mc_dev->mc_io, 0, mc_dev->mc_handle,
-@@ -706,6 +712,10 @@ static int dprc_probe(struct fsl_mc_devi
- error_cleanup_open:
- 	(void)dprc_close(mc_dev->mc_io, 0, mc_dev->mc_handle);
- 
-+error_cleanup_uapi:
-+	if (fsl_mc_is_root_dprc(&mc_dev->dev))
-+		fsl_mc_uapi_remove_device_file(mc_bus);
-+
- error_cleanup_msi_domain:
- 	if (msi_domain_set)
- 		dev_set_msi_domain(&mc_dev->dev, NULL);
-@@ -774,6 +784,8 @@ static int dprc_remove(struct fsl_mc_dev
- 	if (!fsl_mc_is_root_dprc(&mc_dev->dev)) {
- 		fsl_destroy_mc_io(mc_dev->mc_io);
- 		mc_dev->mc_io = NULL;
-+	} else {
-+		fsl_mc_uapi_remove_device_file(mc_bus);
- 	}
- 
- 	dev_info(&mc_dev->dev, "DPRC device unbound from driver");
---- a/drivers/bus/fsl-mc/fsl-mc-private.h
-+++ b/drivers/bus/fsl-mc/fsl-mc-private.h
-@@ -10,6 +10,8 @@
- 
- #include <linux/fsl/mc.h>
- #include <linux/mutex.h>
-+#include <linux/ioctl.h>
-+#include <linux/miscdevice.h>
- 
- /*
-  * Data Path Management Complex (DPMNG) General API
-@@ -505,6 +507,22 @@ struct fsl_mc_resource_pool {
- };
- 
- /**
-+ * struct fsl_mc_uapi - information associated with a device file
-+ * @misc: struct miscdevice linked to the root dprc
-+ * @device: newly created device in /dev
-+ * @mutex: mutex lock to serialize the open/release operations
-+ * @local_instance_in_use: local MC I/O instance in use or not
-+ * @static_mc_io: pointer to the static MC I/O object
-+ */
-+struct fsl_mc_uapi {
-+	struct miscdevice misc;
-+	struct device *device;
-+	struct mutex mutex; /* serialize open/release operations */
-+	u32 local_instance_in_use;
-+	struct fsl_mc_io *static_mc_io;
-+};
-+
-+/**
-  * struct fsl_mc_bus - logical bus that corresponds to a physical DPRC
-  * @mc_dev: fsl-mc device for the bus device itself.
-  * @resource_pools: array of resource pools (one pool per resource type)
-@@ -513,6 +531,7 @@ struct fsl_mc_resource_pool {
-  * @irq_resources: Pointer to array of IRQ objects for the IRQ pool
-  * @scan_mutex: Serializes bus scanning
-  * @dprc_attr: DPRC attributes
-+ * @uapi_misc: struct that abstracts the interaction with userspace
-  */
- struct fsl_mc_bus {
- 	struct fsl_mc_device mc_dev;
-@@ -520,6 +539,7 @@ struct fsl_mc_bus {
- 	struct fsl_mc_device_irq *irq_resources;
- 	struct mutex scan_mutex;    /* serializes bus scanning */
- 	struct dprc_attributes dprc_attr;
-+	struct fsl_mc_uapi uapi_misc;
- };
- 
- #define to_fsl_mc_bus(_mc_dev) \
-@@ -574,4 +594,23 @@ void fsl_destroy_mc_io(struct fsl_mc_io
- 
- bool fsl_mc_is_root_dprc(struct device *dev);
- 
-+#ifdef CONFIG_FSL_MC_UAPI_SUPPORT
-+
-+int fsl_mc_uapi_create_device_file(struct fsl_mc_bus *mc_bus);
-+
-+void fsl_mc_uapi_remove_device_file(struct fsl_mc_bus *mc_bus);
-+
-+#else
-+
-+static inline int fsl_mc_uapi_create_device_file(struct fsl_mc_bus *mc_bus)
-+{
-+	return 0;
-+}
-+
-+static inline void fsl_mc_uapi_remove_device_file(struct fsl_mc_bus *mc_bus)
-+{
-+}
-+
-+#endif
-+
- #endif /* _FSL_MC_PRIVATE_H_ */
---- /dev/null
-+++ b/drivers/bus/fsl-mc/fsl-mc-uapi.c
-@@ -0,0 +1,168 @@
-+// SPDX-License-Identifier: GPL-2.0
-+/*
-+ * Management Complex (MC) userspace support
-+ *
-+ * Copyright 2018 NXP
-+ *
-+ */
-+
-+#include <linux/slab.h>
-+#include <linux/fs.h>
-+#include <linux/uaccess.h>
-+#include <linux/miscdevice.h>
-+
-+#include "fsl-mc-private.h"
-+
-+struct uapi_priv_data {
-+	struct fsl_mc_uapi *uapi;
-+	struct fsl_mc_io *mc_io;
-+};
-+
-+static int fsl_mc_uapi_send_command(unsigned long arg,
-+				    struct fsl_mc_io *mc_io)
-+{
-+	struct fsl_mc_command mc_cmd;
-+	int error;
-+
-+	error = copy_from_user(&mc_cmd, (void __user *)arg, sizeof(mc_cmd));
-+	if (error)
-+		return -EFAULT;
-+
-+	error = mc_send_command(mc_io, &mc_cmd);
-+	if (error)
-+		return error;
-+
-+	error = copy_to_user((void __user *)arg, &mc_cmd, sizeof(mc_cmd));
-+	if (error)
-+		return -EFAULT;
-+
-+	return 0;
-+}
-+
-+static int fsl_mc_uapi_dev_open(struct inode *inode, struct file *filep)
-+{
-+	struct fsl_mc_device *root_mc_device;
-+	struct uapi_priv_data *priv_data;
-+	struct fsl_mc_io *dynamic_mc_io;
-+	struct fsl_mc_uapi *mc_uapi;
-+	struct fsl_mc_bus *mc_bus;
-+	int error;
-+
-+	priv_data = kzalloc(sizeof(*priv_data), GFP_KERNEL);
-+	if (!priv_data)
-+		return -ENOMEM;
-+
-+	mc_uapi = container_of(filep->private_data, struct fsl_mc_uapi, misc);
-+	mc_bus = container_of(mc_uapi, struct fsl_mc_bus, uapi_misc);
-+	root_mc_device = &mc_bus->mc_dev;
-+
-+	mutex_lock(&mc_uapi->mutex);
-+
-+	if (!mc_uapi->local_instance_in_use) {
-+		priv_data->mc_io = mc_uapi->static_mc_io;
-+		mc_uapi->local_instance_in_use = 1;
-+	} else {
-+		error = fsl_mc_portal_allocate(root_mc_device, 0,
-+					       &dynamic_mc_io);
-+		if (error) {
-+			dev_dbg(&root_mc_device->dev,
-+				"Could not allocate MC portal\n");
-+			goto error_portal_allocate;
-+		}
-+
-+		priv_data->mc_io = dynamic_mc_io;
-+	}
-+	priv_data->uapi = mc_uapi;
-+	filep->private_data = priv_data;
-+
-+	mutex_unlock(&mc_uapi->mutex);
-+
-+	return 0;
-+
-+error_portal_allocate:
-+	mutex_unlock(&mc_uapi->mutex);
-+
-+	return error;
-+}
-+
-+static int fsl_mc_uapi_dev_release(struct inode *inode, struct file *filep)
-+{
-+	struct uapi_priv_data *priv_data;
-+	struct fsl_mc_uapi *mc_uapi;
-+	struct fsl_mc_io *mc_io;
-+
-+	priv_data = filep->private_data;
-+	mc_uapi = priv_data->uapi;
-+	mc_io = priv_data->mc_io;
-+
-+	mutex_lock(&mc_uapi->mutex);
-+
-+	if (mc_io == mc_uapi->static_mc_io)
-+		mc_uapi->local_instance_in_use = 0;
-+	else
-+		fsl_mc_portal_free(mc_io);
-+
-+	kfree(filep->private_data);
-+	filep->private_data =  NULL;
-+
-+	mutex_unlock(&mc_uapi->mutex);
-+
-+	return 0;
-+}
-+
-+static long fsl_mc_uapi_dev_ioctl(struct file *file,
-+				  unsigned int cmd,
-+				  unsigned long arg)
-+{
-+	struct uapi_priv_data *priv_data = file->private_data;
-+	struct fsl_mc_device *root_mc_device;
-+	struct fsl_mc_bus *mc_bus;
-+	int error;
-+
-+	mc_bus = container_of(priv_data->uapi, struct fsl_mc_bus, uapi_misc);
-+	root_mc_device = &mc_bus->mc_dev;
-+
-+	switch (cmd) {
-+	case FSL_MC_SEND_MC_COMMAND:
-+		error = fsl_mc_uapi_send_command(arg, priv_data->mc_io);
-+		break;
-+	default:
-+		dev_dbg(&root_mc_device->dev, "unexpected ioctl call number\n");
-+		error = -EINVAL;
-+	}
-+
-+	return error;
-+}
-+
-+static const struct file_operations fsl_mc_uapi_dev_fops = {
-+	.owner = THIS_MODULE,
-+	.open = fsl_mc_uapi_dev_open,
-+	.release = fsl_mc_uapi_dev_release,
-+	.unlocked_ioctl = fsl_mc_uapi_dev_ioctl,
-+};
-+
-+int fsl_mc_uapi_create_device_file(struct fsl_mc_bus *mc_bus)
-+{
-+	struct fsl_mc_device *mc_dev = &mc_bus->mc_dev;
-+	struct fsl_mc_uapi *mc_uapi = &mc_bus->uapi_misc;
-+	int error;
-+
-+	mc_uapi->misc.minor = MISC_DYNAMIC_MINOR;
-+	mc_uapi->misc.name = dev_name(&mc_dev->dev);
-+	mc_uapi->misc.fops = &fsl_mc_uapi_dev_fops;
-+
-+	error = misc_register(&mc_uapi->misc);
-+	if (error)
-+		return error;
-+
-+	mc_uapi->static_mc_io = mc_bus->mc_dev.mc_io;
-+
-+	mutex_init(&mc_uapi->mutex);
-+
-+	return 0;
-+}
-+
-+void fsl_mc_uapi_remove_device_file(struct fsl_mc_bus *mc_bus)
-+{
-+	misc_deregister(&mc_bus->uapi_misc.misc);
-+}
---- a/include/uapi/linux/fsl_mc.h
-+++ b/include/uapi/linux/fsl_mc.h
-@@ -16,10 +16,19 @@
-  * struct fsl_mc_command - Management Complex (MC) command structure
-  * @header: MC command header
-  * @params: MC command parameters
-+ *
-+ * Used by FSL_MC_SEND_MC_COMMAND
-  */
- struct fsl_mc_command {
- 	__le64 header;
- 	__le64 params[MC_CMD_NUM_OF_PARAMS];
- };
- 
-+#define FSL_MC_SEND_CMD_IOCTL_TYPE	'R'
-+#define FSL_MC_SEND_CMD_IOCTL_SEQ	0xE0
-+
-+#define FSL_MC_SEND_MC_COMMAND \
-+	_IOWR(FSL_MC_SEND_CMD_IOCTL_TYPE, FSL_MC_SEND_CMD_IOCTL_SEQ, \
-+	struct fsl_mc_command)
-+
- #endif /* _UAPI_FSL_MC_H_ */