1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * 4 * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> 5 * Copyright (C) 2010 Joonas Lahtinen <joonas.lahtinen@gmail.com> 6 * Copyright (C) 2013 John Crispin <john@phrozen.org> 7 */ 8 9 #include <linux/string.h> 10 #include <linux/of_fdt.h> 11 #include <linux/of_platform.h> 12 13 #include <asm/bootinfo.h> 14 #include <asm/addrspace.h> 15 16 #include <asm/mach-ralink/ralink_regs.h> 17 18 #include "common.h" 19 20 struct ralink_soc_info soc_info; 21 22 enum ralink_soc_type ralink_soc; 23 EXPORT_SYMBOL_GPL(ralink_soc); 24 25 const char *get_system_type(void) 26 { 27 return soc_info.sys_type; 28 } 29 30 static __init void prom_init_cmdline(void) 31 { 32 int argc; 33 char **argv; 34 int i; 35 36 pr_debug("prom: fw_arg0=%08x fw_arg1=%08x fw_arg2=%08x fw_arg3=%08x\n", 37 (unsigned int)fw_arg0, (unsigned int)fw_arg1, 38 (unsigned int)fw_arg2, (unsigned int)fw_arg3); 39 40 argc = fw_arg0; 41 argv = (char **) KSEG1ADDR(fw_arg1); 42 43 if (!argv) { 44 pr_debug("argv=%p is invalid, skipping\n", 45 argv); 46 return; 47 } 48 49 for (i = 0; i < argc; i++) { 50 char *p = (char *) KSEG1ADDR(argv[i]); 51 52 if (CPHYSADDR(p) && *p) { 53 pr_debug("argv[%d]: %s\n", i, p); 54 strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline)); 55 strlcat(arcs_cmdline, p, sizeof(arcs_cmdline)); 56 } 57 } 58 } 59 60 void __init prom_init(void) 61 { 62 prom_soc_init(&soc_info); 63 64 pr_info("SoC Type: %s\n", get_system_type()); 65 66 prom_init_cmdline(); 67 } 68