initial buildroot for linux 5.15

package/kexec-lite/0001-clean-restart.patch

@@ -0,0 +1,34 @@
+From 0a654c20e1b9324c57ba4116b52fb6ab33847e1d Mon Sep 17 00:00:00 2001
+From: Jeremy Kerr <jk@ozlabs.org>
+Date: Thu, 8 Aug 2013 17:16:31 +0800
+Subject: [PATCH] kexec: Implement clean restart for busybox init
+
+Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
+---
+ kexec.c |    3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/kexec.c b/kexec.c
+index 2edb7df..b2a0c42 100644
+--- a/kexec.c
++++ b/kexec.c
+@@ -27,6 +27,7 @@
+ #include <fcntl.h>
+ #include <errno.h>
+ #include <syscall.h>
++#include <signal.h>
+ #include <libfdt.h>
+ #include <getopt.h>
+ #include <sys/types.h>
+@@ -818,7 +819,7 @@ int main(int argc, char *argv[])
+ 			sync();
+ 			exec_kexec();
+ 		} else {
+-			execlp("shutdown", "shutdown", "-r", "now", NULL);
++			kill(1, SIGQUIT);
+ 		}
+ 
+ 		return -1;
+-- 
+1.7.10.4
+

package/kexec-lite/Config.in

@@ -0,0 +1,25 @@
+config BR2_PACKAGE_KEXEC_LITE
+	bool "kexec-lite"
+	depends on BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le
+	depends on !BR2_STATIC_LIBS # dtc, elfutils
+	depends on BR2_USE_WCHAR # elfutils
+	depends on BR2_TOOLCHAIN_HAS_THREADS # elfutils
+	depends on BR2_TOOLCHAIN_USES_UCLIBC || BR2_TOOLCHAIN_USES_GLIBC # elfutils
+	select BR2_PACKAGE_ELFUTILS
+	select BR2_PACKAGE_DTC
+	select BR2_PACKAGE_DTC_PROGRAMS
+	help
+	  Kexec is a user space utiltity for loading another kernel
+	  and asking the currently running kernel to do something with
+	  it.
+
+	  This package is a tiny implementation of the kexec userspace
+	  components, for devicetree-based platforms.
+
+	  https://github.com/antonblanchard/kexec-lite
+
+comment "kexec-lite needs a uClibc or glibc toolchain w/ wchar, dynamic library, threads"
+	depends on BR2_powerpc || BR2_powerpc64
+	depends on BR2_STATIC_LIBS || !BR2_USE_WCHAR \
+		|| !BR2_TOOLCHAIN_HAS_THREADS \
+		|| !(BR2_TOOLCHAIN_USES_UCLIBC || BR2_TOOLCHAIN_USES_GLIBC)

package/kexec-lite/kexec-lite.hash

@@ -0,0 +1,3 @@
+# Locally calculated
+sha256  1027c69721e8ee21614273a540e1dd505370d8d814845c0adaf838496105a35d  kexec-lite-6b0130b3c1ea489e061cda2805e6f8b68dc96a76.tar.gz
+sha256  8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643  COPYING

package/kexec-lite/kexec-lite.mk

@@ -0,0 +1,15 @@
+################################################################################
+#
+# kexec-lite
+#
+################################################################################
+
+KEXEC_LITE_VERSION = 6b0130b3c1ea489e061cda2805e6f8b68dc96a76
+KEXEC_LITE_SITE = $(call github,antonblanchard,kexec-lite,$(KEXEC_LITE_VERSION))
+KEXEC_LITE_LICENSE = GPL-2.0+
+KEXEC_LITE_LICENSE_FILES = COPYING
+KEXEC_LITE_DEPENDENCIES = elfutils dtc
+KEXEC_LITE_AUTORECONF = YES
+KEXEC_LITE_SELINUX_MODULES = kdump
+
+$(eval $(autotools-package))