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https://github.com/openwrt/openwrt.git
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51 lines
1.3 KiB
Diff
51 lines
1.3 KiB
Diff
diff -ur linux.old/arch/mips/kernel/head.S linux.dev/arch/mips/kernel/head.S
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--- linux.old/arch/mips/kernel/head.S 2006-12-06 17:30:27.000000000 +0100
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+++ linux.dev/arch/mips/kernel/head.S 2006-12-06 18:34:43.000000000 +0100
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@@ -129,15 +129,20 @@
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#endif
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.endm
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-
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j kernel_entry
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nop
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-
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+ nop
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+
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/*
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* Reserved space for exception handlers.
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* Necessary for machines which link their kernels at KSEG0.
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+ * Use as temporary storage for the kernel command line, so that it
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+ * can be updated easily without having to relink the kernel.
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*/
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- .fill 0x400
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+
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+EXPORT(_image_cmdline)
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+ .ascii "CMDLINE:"
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+ .fill 0x3ec
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EXPORT(stext) # used for profiling
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EXPORT(_stext)
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diff -ur linux.old/arch/mips/adm5120/prom.c linux.dev/arch/mips/adm5120/prom.c
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--- linux.old/arch/mips/adm5120/prom.c 2006-12-06 17:30:27.000000000 +0100
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+++ linux.dev/arch/mips/adm5120/prom.c 2006-12-06 17:41:40.000000000 +0100
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@@ -100,6 +100,7 @@
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}
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+extern char _image_cmdline;
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/*
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* initialize the prom module.
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*/
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@@ -112,8 +112,10 @@
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mips_machtype = adm5120_board.mach_type;
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/* init command line, register a default kernel command line */
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- strcpy(&(arcs_cmdline[0]), CONFIG_CMDLINE);
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+ char *cmd = &_image_cmdline + 8;
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+ if( strlen(cmd) > 0) strcpy( &(arcs_cmdline[0]), cmd);
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+ else strcpy(&(arcs_cmdline[0]), CONFIG_CMDLINE);
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/* init memory map */
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prom_meminit();
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}
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