ipq806x: remove obsolete Kernel 5.4

With the upgrade to Kernel 5.10 per default the old version is no longer
required to be in tree.

Signed-off-by: Paul Spooren <mail@aparcar.org>

1 files changed, 0 insertions, 210 deletions

diff --git a/target/linux/ipq806x/patches-5.4/0067-generic-Mangle-bootloader-s-kernel-arguments.patch b/target/linux/ipq806x/patches-5.4/0067-generic-Mangle-bootloader-s-kernel-arguments.patch
deleted file mode 100644
index 751ac10a19..0000000000
--- a/target/linux/ipq806x/patches-5.4/0067-generic-Mangle-bootloader-s-kernel-arguments.patch
+++ /dev/null
@@ -1,210 +0,0 @@
-From 71270226b14733a4b1f2cde58ea9265caa50b38d Mon Sep 17 00:00:00 2001
-From: Adrian Panella <ianchi74@outlook.com>
-Date: Thu, 9 Mar 2017 09:37:17 +0100
-Subject: [PATCH 67/69] generic: Mangle bootloader's kernel arguments
-
-The command-line arguments provided by the boot loader will be
-appended to a new device tree property: bootloader-args.
-If there is a property "append-rootblock" in DT under /chosen
-and a root= option in bootloaders command line it will be parsed
-and added to DT bootargs with the form: <append-rootblock>XX.
-Only command line ATAG will be processed, the rest of the ATAGs
-sent by bootloader will be ignored.
-This is usefull in dual boot systems, to get the current root partition
-without afecting the rest of the system.
-
-Signed-off-by: Adrian Panella <ianchi74@outlook.com>
----
- arch/arm/Kconfig                        | 11 +++++
- arch/arm/boot/compressed/atags_to_fdt.c | 72 ++++++++++++++++++++++++++++++++-
- init/main.c                             | 16 ++++++++
- 3 files changed, 98 insertions(+), 1 deletion(-)
-
---- a/arch/arm/Kconfig
-+++ b/arch/arm/Kconfig
-@@ -1827,6 +1827,17 @@ config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEN
- 	  The command-line arguments provided by the boot loader will be
- 	  appended to the the device tree bootargs property.
- 
-+config ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE
-+	bool "Append rootblock parsing bootloader's kernel arguments"
-+	help
-+	  The command-line arguments provided by the boot loader will be
-+	  appended to a new device tree property: bootloader-args.
-+	  If there is a property "append-rootblock" in DT under /chosen
-+	  and a root= option in bootloaders command line it will be parsed
-+	  and added to DT bootargs with the form: <append-rootblock>XX.
-+	  Only command line ATAG will be processed, the rest of the ATAGs
-+	  sent by bootloader will be ignored.
-+
- endchoice
- 
- config CMDLINE
---- a/arch/arm/boot/compressed/atags_to_fdt.c
-+++ b/arch/arm/boot/compressed/atags_to_fdt.c
-@@ -4,6 +4,8 @@
- 
- #if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND)
- #define do_extend_cmdline 1
-+#elif defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE)
-+#define do_extend_cmdline 1
- #else
- #define do_extend_cmdline 0
- #endif
-@@ -67,6 +69,80 @@ static uint32_t get_cell_size(const void
- 	return cell_size;
- }
- 
-+#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE)
-+/**
-+ * taken from arch/x86/boot/string.c
-+ * local_strstr - Find the first substring in a %NUL terminated string
-+ * @s1: The string to be searched
-+ * @s2: The string to search for
-+ */
-+static char *local_strstr(const char *s1, const char *s2)
-+{
-+	size_t l1, l2;
-+
-+	l2 = strlen(s2);
-+	if (!l2)
-+		return (char *)s1;
-+	l1 = strlen(s1);
-+	while (l1 >= l2) {
-+		l1--;
-+		if (!memcmp(s1, s2, l2))
-+			return (char *)s1;
-+		s1++;
-+	}
-+	return NULL;
-+}
-+
-+static char *append_rootblock(char *dest, const char *str, int len, void *fdt)
-+{
-+	char *ptr, *end, *tmp;
-+	char *root="root=";
-+	char *find_rootblock;
-+	int i, l;
-+	const char *rootblock;
-+
-+	find_rootblock = getprop(fdt, "/chosen", "find-rootblock", &l);
-+	if(!find_rootblock)
-+		find_rootblock = root;
-+
-+	//ARM doesn't have __HAVE_ARCH_STRSTR, so it was copied from x86
-+	ptr = local_strstr(str, find_rootblock);
-+
-+	if(!ptr)
-+		return dest;
-+
-+	end = strchr(ptr, ' ');
-+	end = end ? (end - 1) : (strchr(ptr, 0) - 1);
-+
-+	// Some boards ubi.mtd=XX,ZZZZ, so let's check for '," too.
-+	tmp = strchr(ptr, ',');
-+
-+	if(tmp)
-+		end = end < tmp ? end : tmp - 1;
-+
-+	//find partition number (assumes format root=/dev/mtdXX | /dev/mtdblockXX | yy:XX | ubi.mtd=XX,ZZZZ )
-+	for( i = 0; end >= ptr && *end >= '0' && *end <= '9'; end--, i++);
-+	ptr = end + 1;
-+
-+	/* if append-rootblock property is set use it to append to command line */
-+	rootblock = getprop(fdt, "/chosen", "append-rootblock", &l);
-+	if(rootblock != NULL) {
-+		if(*dest != ' ') {
-+			*dest = ' ';
-+			dest++;
-+			len++;
-+		}
-+		if (len + l + i <= COMMAND_LINE_SIZE) {
-+			memcpy(dest, rootblock, l);
-+			dest += l - 1;
-+			memcpy(dest, ptr, i);
-+			dest += i;
-+		}
-+	}
-+	return dest;
-+}
-+#endif
-+
- static void merge_fdt_bootargs(void *fdt, const char *fdt_cmdline)
- {
- 	char cmdline[COMMAND_LINE_SIZE];
-@@ -86,12 +162,21 @@ static void merge_fdt_bootargs(void *fdt
- 
- 	/* and append the ATAG_CMDLINE */
- 	if (fdt_cmdline) {
-+
-+#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE)
-+		//save original bootloader args
-+		//and append ubi.mtd with root partition number to current cmdline
-+		setprop_string(fdt, "/chosen", "bootloader-args", fdt_cmdline);
-+		ptr = append_rootblock(ptr, fdt_cmdline, len, fdt);
-+
-+#else
- 		len = strlen(fdt_cmdline);
- 		if (ptr - cmdline + len + 2 < COMMAND_LINE_SIZE) {
- 			*ptr++ = ' ';
- 			memcpy(ptr, fdt_cmdline, len);
- 			ptr += len;
- 		}
-+#endif
- 	}
- 	*ptr = '\0';
- 
-@@ -166,7 +251,9 @@ int atags_to_fdt(void *atag_list, void *
- 			else
- 				setprop_string(fdt, "/chosen", "bootargs",
- 					       atag->u.cmdline.cmdline);
--		} else if (atag->hdr.tag == ATAG_MEM) {
-+		}
-+#ifndef CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE
-+		else if (atag->hdr.tag == ATAG_MEM) {
- 			if (memcount >= sizeof(mem_reg_property)/4)
- 				continue;
- 			if (!atag->u.mem.size)
-@@ -210,6 +297,10 @@ int atags_to_fdt(void *atag_list, void *
- 		setprop(fdt, "/memory", "reg", mem_reg_property,
- 			4 * memcount * memsize);
- 	}
-+#else
-+
-+	}
-+#endif
- 
- 	return fdt_pack(fdt);
- }
---- a/init/main.c
-+++ b/init/main.c
-@@ -104,6 +104,10 @@
- #define CREATE_TRACE_POINTS
- #include <trace/events/initcall.h>
- 
-+#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE)
-+#include <linux/of.h>
-+#endif
-+
- static int kernel_init(void *);
- 
- extern void init_IRQ(void);
-@@ -633,6 +637,18 @@ asmlinkage __visible void __init start_k
- 	pr_notice("Kernel command line: %s\n", boot_command_line);
- 	/* parameters may set static keys */
- 	jump_label_init();
-+
-+#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE)
-+	//Show bootloader's original command line for reference
-+	if(of_chosen) {
-+		const char *prop = of_get_property(of_chosen, "bootloader-args", NULL);
-+		if(prop)
-+			pr_notice("Bootloader command line (ignored): %s\n", prop);
-+		else
-+			pr_notice("Bootloader command line not present\n");
-+	}
-+#endif
-+
- 	parse_early_param();
- 	after_dashes = parse_args("Booting kernel",
- 				  static_command_line, __start___param,