diff options
Diffstat (limited to 'target/linux/ipq806x/patches-4.14/0067-generic-Mangle-bootloader-s-kernel-arguments.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-4.14/0067-generic-Mangle-bootloader-s-kernel-arguments.patch | 78 |
1 files changed, 39 insertions, 39 deletions
diff --git a/target/linux/ipq806x/patches-4.14/0067-generic-Mangle-bootloader-s-kernel-arguments.patch b/target/linux/ipq806x/patches-4.14/0067-generic-Mangle-bootloader-s-kernel-arguments.patch index 98c2ba1faa..c7123eac52 100644 --- a/target/linux/ipq806x/patches-4.14/0067-generic-Mangle-bootloader-s-kernel-arguments.patch +++ b/target/linux/ipq806x/patches-4.14/0067-generic-Mangle-bootloader-s-kernel-arguments.patch @@ -23,9 +23,9 @@ Signed-off-by: Adrian Panella <ianchi74@outlook.com> --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1938,6 +1938,17 @@ 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. - + 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 @@ -38,12 +38,12 @@ Signed-off-by: Adrian Panella <ianchi74@outlook.com> + 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) @@ -52,9 +52,9 @@ Signed-off-by: Adrian Panella <ianchi74@outlook.com> #define do_extend_cmdline 0 #endif @@ -67,6 +69,59 @@ static uint32_t get_cell_size(const void - return cell_size; + return cell_size; } - + +#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE) + +static char *append_rootblock(char *dest, const char *str, int len, void *fdt) @@ -110,11 +110,11 @@ Signed-off-by: Adrian Panella <ianchi74@outlook.com> + static void merge_fdt_bootargs(void *fdt, const char *fdt_cmdline) { - char cmdline[COMMAND_LINE_SIZE]; + char cmdline[COMMAND_LINE_SIZE]; @@ -86,12 +141,21 @@ static void merge_fdt_bootargs(void *fdt - - /* and append the ATAG_CMDLINE */ - if (fdt_cmdline) { + + /* and append the ATAG_CMDLINE */ + if (fdt_cmdline) { + +#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE) + //save original bootloader args @@ -123,55 +123,55 @@ Signed-off-by: Adrian Panella <ianchi74@outlook.com> + 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; - } + len = strlen(fdt_cmdline); + if (ptr - cmdline + len + 2 < COMMAND_LINE_SIZE) { + *ptr++ = ' '; + memcpy(ptr, fdt_cmdline, len); + ptr += len; + } +#endif - } - *ptr = '\0'; - + } + *ptr = '\0'; + @@ -148,7 +212,9 @@ int atags_to_fdt(void *atag_list, void * - else - setprop_string(fdt, "/chosen", "bootargs", - atag->u.cmdline.cmdline); + 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) + if (memcount >= sizeof(mem_reg_property)/4) + continue; + if (!atag->u.mem.size) @@ -187,6 +253,10 @@ int atags_to_fdt(void *atag_list, void * - setprop(fdt, "/memory", "reg", mem_reg_property, - 4 * memcount * memsize); - } + setprop(fdt, "/memory", "reg", mem_reg_property, + 4 * memcount * memsize); + } +#else + + } +#endif - - return fdt_pack(fdt); + + return fdt_pack(fdt); } --- a/init/main.c +++ b/init/main.c @@ -95,6 +95,10 @@ #include <asm/sections.h> #include <asm/cacheflush.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); @@ -574,6 +578,18 @@ asmlinkage __visible void __init start_k - page_alloc_init(); - - pr_notice("Kernel command line: %s\n", boot_command_line); + page_alloc_init(); + + pr_notice("Kernel command line: %s\n", boot_command_line); + +#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE) + //Show bootloader's original command line for reference @@ -184,6 +184,6 @@ Signed-off-by: Adrian Panella <ianchi74@outlook.com> + } +#endif + - parse_early_param(); - after_dashes = parse_args("Booting kernel", - static_command_line, __start___param, + parse_early_param(); + after_dashes = parse_args("Booting kernel", + static_command_line, __start___param, |