Add a RB1xx profile to generate RouterBoard RB1xx series image and kernel command...
[openwrt/svn-archive/archive.git] / target / linux / adm5120-2.6 / patches / 140-cmdline_hack.patch
1 diff -ur linux.old/arch/mips/kernel/head.S linux.dev/arch/mips/kernel/head.S
2 --- linux.old/arch/mips/kernel/head.S 2006-12-06 17:30:27.000000000 +0100
3 +++ linux.dev/arch/mips/kernel/head.S 2006-12-06 18:34:43.000000000 +0100
4 @@ -129,15 +129,20 @@
5 #endif
6 .endm
7
8 -
9 j kernel_entry
10 nop
11 -
12 + nop
13 +
14 /*
15 * Reserved space for exception handlers.
16 * Necessary for machines which link their kernels at KSEG0.
17 + * Use as temporary storage for the kernel command line, so that it
18 + * can be updated easily without having to relink the kernel.
19 */
20 - .fill 0x400
21 +
22 +EXPORT(_image_cmdline)
23 + .ascii "CMDLINE:"
24 + .fill 0x3ec
25
26 EXPORT(stext) # used for profiling
27 EXPORT(_stext)
28 diff -ur linux.old/arch/mips/adm5120/prom.c linux.dev/arch/mips/adm5120/prom.c
29 --- linux.old/arch/mips/adm5120/prom.c 2006-12-06 17:30:27.000000000 +0100
30 +++ linux.dev/arch/mips/adm5120/prom.c 2006-12-06 17:41:40.000000000 +0100
31 @@ -100,6 +100,7 @@
32 }
33
34
35 +extern char _image_cmdline;
36 /*
37 * initialize the prom module.
38 */
39 @@ -112,8 +112,10 @@
40 mips_machtype = adm5120_board.mach_type;
41
42 /* init command line, register a default kernel command line */
43 - strcpy(&(arcs_cmdline[0]), CONFIG_CMDLINE);
44 + char *cmd = &_image_cmdline + 8;
45 + if( strlen(cmd) > 0) strcpy( &(arcs_cmdline[0]), cmd);
46 + else strcpy(&(arcs_cmdline[0]), CONFIG_CMDLINE);
47
48 /* init memory map */
49 prom_meminit();
50 }