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, 58 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0148-bus-fsl-mc-use-raw-spin-lock-to-serialize-mc-cmds.patch b/target/linux/layerscape/patches-5.4/701-net-0148-bus-fsl-mc-use-raw-spin-lock-to-serialize-mc-cmds.patch
deleted file mode 100644
index 42934e2245..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0148-bus-fsl-mc-use-raw-spin-lock-to-serialize-mc-cmds.patch
+++ /dev/null
@@ -1,58 +0,0 @@
-From 035546179039d430b32b2cace256552455abf061 Mon Sep 17 00:00:00 2001
-From: Laurentiu Tudor <laurentiu.tudor@nxp.com>
-Date: Thu, 29 Aug 2019 11:39:45 +0300
-Subject: [PATCH] bus: fsl-mc: use raw spin lock to serialize mc cmds
-
-Replace the spinlock that serializes the MC commands with a raw
-spinlock. This is needed for the RT kernel because there are MC
-commands sent in interrupt context.
-
-Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
----
- drivers/bus/fsl-mc/mc-io.c  | 2 +-
- drivers/bus/fsl-mc/mc-sys.c | 4 ++--
- include/linux/fsl/mc.h      | 2 +-
- 3 files changed, 4 insertions(+), 4 deletions(-)
-
---- a/drivers/bus/fsl-mc/mc-io.c
-+++ b/drivers/bus/fsl-mc/mc-io.c
-@@ -82,7 +82,7 @@ int __must_check fsl_create_mc_io(struct
- 	mc_io->portal_phys_addr = mc_portal_phys_addr;
- 	mc_io->portal_size = mc_portal_size;
- 	if (flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL)
--		spin_lock_init(&mc_io->spinlock);
-+		raw_spin_lock_init(&mc_io->spinlock);
- 	else
- 		mutex_init(&mc_io->mutex);
- 
---- a/drivers/bus/fsl-mc/mc-sys.c
-+++ b/drivers/bus/fsl-mc/mc-sys.c
-@@ -251,7 +251,7 @@ int mc_send_command(struct fsl_mc_io *mc
- 		return -EINVAL;
- 
- 	if (mc_io->flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL)
--		spin_lock_irqsave(&mc_io->spinlock, irq_flags);
-+		raw_spin_lock_irqsave(&mc_io->spinlock, irq_flags);
- 	else
- 		mutex_lock(&mc_io->mutex);
- 
-@@ -287,7 +287,7 @@ int mc_send_command(struct fsl_mc_io *mc
- 	error = 0;
- common_exit:
- 	if (mc_io->flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL)
--		spin_unlock_irqrestore(&mc_io->spinlock, irq_flags);
-+		raw_spin_unlock_irqrestore(&mc_io->spinlock, irq_flags);
- 	else
- 		mutex_unlock(&mc_io->mutex);
- 
---- a/include/linux/fsl/mc.h
-+++ b/include/linux/fsl/mc.h
-@@ -340,7 +340,7 @@ struct fsl_mc_io {
- 		 * This field is only meaningful if the
- 		 * FSL_MC_IO_ATOMIC_CONTEXT_PORTAL flag is set
- 		 */
--		spinlock_t spinlock;	/* serializes mc_send_command() */
-+		raw_spinlock_t spinlock; /* serializes mc_send_command() */
- 	};
- };
-