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MIPS: ralink: adds prom and cmdline code
Add minimal code to handle commandlines. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/4892/
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John Crispin
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Feb 17, 2013
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/* | ||
* This program is free software; you can redistribute it and/or modify it | ||
* under the terms of the GNU General Public License version 2 as published | ||
* by the Free Software Foundation. | ||
* | ||
* Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> | ||
* Copyright (C) 2010 Joonas Lahtinen <joonas.lahtinen@gmail.com> | ||
* Copyright (C) 2013 John Crispin <blogic@openwrt.org> | ||
*/ | ||
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#include <linux/string.h> | ||
#include <linux/of_fdt.h> | ||
#include <linux/of_platform.h> | ||
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#include <asm/bootinfo.h> | ||
#include <asm/addrspace.h> | ||
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#include "common.h" | ||
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struct ralink_soc_info soc_info; | ||
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const char *get_system_type(void) | ||
{ | ||
return soc_info.sys_type; | ||
} | ||
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static __init void prom_init_cmdline(int argc, char **argv) | ||
{ | ||
int i; | ||
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pr_debug("prom: fw_arg0=%08x fw_arg1=%08x fw_arg2=%08x fw_arg3=%08x\n", | ||
(unsigned int)fw_arg0, (unsigned int)fw_arg1, | ||
(unsigned int)fw_arg2, (unsigned int)fw_arg3); | ||
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argc = fw_arg0; | ||
argv = (char **) KSEG1ADDR(fw_arg1); | ||
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if (!argv) { | ||
pr_debug("argv=%p is invalid, skipping\n", | ||
argv); | ||
return; | ||
} | ||
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for (i = 0; i < argc; i++) { | ||
char *p = (char *) KSEG1ADDR(argv[i]); | ||
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if (CPHYSADDR(p) && *p) { | ||
pr_debug("argv[%d]: %s\n", i, p); | ||
strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline)); | ||
strlcat(arcs_cmdline, p, sizeof(arcs_cmdline)); | ||
} | ||
} | ||
} | ||
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void __init prom_init(void) | ||
{ | ||
int argc; | ||
char **argv; | ||
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prom_soc_init(&soc_info); | ||
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pr_info("SoC Type: %s\n", get_system_type()); | ||
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prom_init_cmdline(argc, argv); | ||
} | ||
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void __init prom_free_prom_memory(void) | ||
{ | ||
} |