From 6bfd210ade2a5d35950f56aeeac2d0ee1b8499e0 Mon Sep 17 00:00:00 2001 From: Imre Kaloz Date: Fri, 2 Jan 2015 16:48:20 +0000 Subject: [PATCH] honor the bootloader's bootargs Only overwrite the bootloader's bootargs if "chosen" exists in the dtb Signed-off-by: Imre Kaloz SVN-Revision: 43802 --- .../0110-fix_bootargs_handling.patch | 40 +++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 target/linux/ramips/patches-3.14/0110-fix_bootargs_handling.patch diff --git a/target/linux/ramips/patches-3.14/0110-fix_bootargs_handling.patch b/target/linux/ramips/patches-3.14/0110-fix_bootargs_handling.patch new file mode 100644 index 0000000000..203d2455d2 --- /dev/null +++ b/target/linux/ramips/patches-3.14/0110-fix_bootargs_handling.patch @@ -0,0 +1,40 @@ +--- a/arch/mips/ralink/of.c ++++ b/arch/mips/ralink/of.c +@@ -3,7 +3,7 @@ + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * +- * Copyright (C) 2008 Imre Kaloz ++ * Copyright (C) 2008-2014 Imre Kaloz + * Copyright (C) 2008-2009 Gabor Juhos + * Copyright (C) 2013 John Crispin + */ +@@ -91,6 +91,17 @@ static int __init early_init_dt_find_mem + return 0; + } + ++static int chosen_dtb; ++ ++static int __init early_init_dt_find_chosen(unsigned long node, const char *uname, ++ int depth, void *data) ++{ ++ if (depth == 1 && !strcmp(uname, "chosen")) ++ chosen_dtb = 1; ++ ++ return 0; ++} ++ + extern struct boot_param_header __image_dtb; + + void __init plat_mem_setup(void) +@@ -103,7 +114,9 @@ void __init plat_mem_setup(void) + */ + __dt_setup_arch(&__image_dtb); + +- strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE); ++ of_scan_flat_dt(early_init_dt_find_chosen, NULL); ++ if (chosen_dtb) ++ strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE); + + of_scan_flat_dt(early_init_dt_find_memory, NULL); + if (memory_dtb) -- 2.30.2