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, 28 deletions

diff --git a/target/linux/layerscape/patches-5.4/819-uart-0003-tty-serial-fsl_lpuart-add-magic-SysRq-support.patch b/target/linux/layerscape/patches-5.4/819-uart-0003-tty-serial-fsl_lpuart-add-magic-SysRq-support.patch
deleted file mode 100644
index dc2ace7be2..0000000000
--- a/target/linux/layerscape/patches-5.4/819-uart-0003-tty-serial-fsl_lpuart-add-magic-SysRq-support.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-From 74d7e639cce7ae95cacd948dcf5ed3b28c3fff5c Mon Sep 17 00:00:00 2001
-From: Fugang Duan <fugang.duan@nxp.com>
-Date: Mon, 28 Jan 2019 10:27:27 +0800
-Subject: [PATCH] tty: serial: fsl_lpuart: add magic SysRq support
-
-Add magic SysRq key support.
-
-Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
----
- drivers/tty/serial/fsl_lpuart.c | 7 ++++++-
- 1 file changed, 6 insertions(+), 1 deletion(-)
-
---- a/drivers/tty/serial/fsl_lpuart.c
-+++ b/drivers/tty/serial/fsl_lpuart.c
-@@ -931,7 +931,12 @@ static void lpuart32_rxint(struct lpuart
- 		 */
- 		sr = lpuart32_read(&sport->port, UARTSTAT);
- 		rx = lpuart32_read(&sport->port, UARTDATA);
--		rx &= 0x3ff;
-+
-+		if ((sr & UARTSTAT_FE) && (rx & UARTDATA_FRETSC) &&
-+			!(rx & UARTDATA_MASK)) {
-+			if (uart_handle_break(&sport->port))
-+				continue;
-+		}
- 
- 		if (uart_handle_sysrq_char(&sport->port, (unsigned char)rx))
- 			continue;