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authorPaul Spooren <mail@aparcar.org>2021-10-01 11:27:12 -1000
committerAdrian Schmutzler <freifunk@adrianschmutzler.de>2021-10-02 18:15:23 +0200
commitb48d30521d4d2f90af50b06c7cf95dd6a24acd35 (patch)
tree3c574e09fdbf17b1d719ce8096b43506d18fb9e3 /target/linux/ipq806x/patches-5.4/0067-generic-Mangle-bootloader-s-kernel-arguments.patch
parentcac2ca1d4300a52f5d1d4ef603f0cdcc62c1e2e2 (diff)
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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>
Diffstat (limited to 'target/linux/ipq806x/patches-5.4/0067-generic-Mangle-bootloader-s-kernel-arguments.patch')
-rw-r--r--target/linux/ipq806x/patches-5.4/0067-generic-Mangle-bootloader-s-kernel-arguments.patch210
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,