Author: kaloz
Date: 2015-01-02 17:48:20 +0100 (Fri, 02 Jan 2015)
New Revision: 43802

Added:
   trunk/target/linux/ramips/patches-3.14/0110-fix_bootargs_handling.patch
Log:
[ramips]: honor the bootloader's bootargs

Only overwrite the bootloader's bootargs if "chosen" exists in the dtb

Signed-off-by: Imre Kaloz <[email protected]>



Added: trunk/target/linux/ramips/patches-3.14/0110-fix_bootargs_handling.patch
===================================================================
--- trunk/target/linux/ramips/patches-3.14/0110-fix_bootargs_handling.patch     
                        (rev 0)
+++ trunk/target/linux/ramips/patches-3.14/0110-fix_bootargs_handling.patch     
2015-01-02 16:48:20 UTC (rev 43802)
@@ -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 <[email protected]>
++ * Copyright (C) 2008-2014 Imre Kaloz <[email protected]>
+  * Copyright (C) 2008-2009 Gabor Juhos <[email protected]>
+  * Copyright (C) 2013 John Crispin <[email protected]>
+  */
+@@ -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)
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