diff options
| -rw-r--r-- | arch/mips/ralink/prom.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/mips/ralink/prom.c b/arch/mips/ralink/prom.c new file mode 100644 index 00000000000..9c64f029d04 --- /dev/null +++ b/arch/mips/ralink/prom.c @@ -0,0 +1,69 @@ +/* + * 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> + */ + +#include <linux/string.h> +#include <linux/of_fdt.h> +#include <linux/of_platform.h> + +#include <asm/bootinfo.h> +#include <asm/addrspace.h> + +#include "common.h" + +struct ralink_soc_info soc_info; + +const char *get_system_type(void) +{ + return soc_info.sys_type; +} + +static __init void prom_init_cmdline(int argc, char **argv) +{ + int i; + + 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); + + argc = fw_arg0; + argv = (char **) KSEG1ADDR(fw_arg1); + + if (!argv) { + pr_debug("argv=%p is invalid, skipping\n", + argv); + return; + } + + for (i = 0; i < argc; i++) { + char *p = (char *) KSEG1ADDR(argv[i]); + + 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)); + } + } +} + +void __init prom_init(void) +{ + int argc; + char **argv; + + prom_soc_init(&soc_info); + + pr_info("SoC Type: %s\n", get_system_type()); + + prom_init_cmdline(argc, argv); +} + +void __init prom_free_prom_memory(void) +{ +} |