2 * Atheros AR71xx SoC specific prom routines
4 * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
5 * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published
9 * by the Free Software Foundation.
12 #include <linux/kernel.h>
13 #include <linux/init.h>
15 #include <linux/string.h>
17 #include <asm/bootinfo.h>
18 #include <asm/addrspace.h>
19 #include <asm/fw/myloader/myloader.h>
21 #include <asm/mach-ar71xx/ar71xx.h>
27 enum ar71xx_mach_type mach_type;
30 static struct board_rec boards[] __initdata = {
33 .mach_type = AR71XX_MACH_RB_411,
36 .mach_type = AR71XX_MACH_RB_411U,
39 .mach_type = AR71XX_MACH_RB_433,
42 .mach_type = AR71XX_MACH_RB_433U,
45 .mach_type = AR71XX_MACH_RB_450,
48 .mach_type = AR71XX_MACH_RB_450G,
51 .mach_type = AR71XX_MACH_RB_493,
54 .mach_type = AR71XX_MACH_AP81,
57 .mach_type = AR71XX_MACH_AP83,
60 .mach_type = AR71XX_MACH_AW_NR580,
63 .mach_type = AR71XX_MACH_DIR_825_B1,
66 .mach_type = AR71XX_MACH_TEW_632BRP,
69 .mach_type = AR71XX_MACH_DIR_615_C1,
72 .mach_type = AR71XX_MACH_TL_WR741ND,
75 .mach_type = AR71XX_MACH_TL_WR941ND,
77 .name = "TL-WR1043ND",
78 .mach_type = AR71XX_MACH_TL_WR1043ND,
81 .mach_type = AR71XX_MACH_UBNT_RS,
84 .mach_type = AR71XX_MACH_UBNT_RSPRO,
86 .name = "Ubiquiti AR71xx-based board",
87 .mach_type = AR71XX_MACH_UBNT_RS,
89 .name = "UBNT-LS-SR71",
90 .mach_type = AR71XX_MACH_UBNT_LSSR71,
93 .mach_type = AR71XX_MACH_UBNT_LSX,
96 .mach_type = AR71XX_MACH_UBNT_BULLET_M,
99 .mach_type = AR71XX_MACH_UBNT_ROCKET_M,
102 .mach_type = AR71XX_MACH_UBNT_NANO_M,
105 .mach_type = AR71XX_MACH_WNDR3700,
108 .mach_type = AR71XX_MACH_WNR2000,
111 .mach_type = AR71XX_MACH_WRT160NL,
114 .mach_type = AR71XX_MACH_WP543,
117 .mach_type = AR71XX_MACH_WRT400N,
120 .mach_type = AR71XX_MACH_PB42,
123 .mach_type = AR71XX_MACH_PB44,
125 .name = "MZK-W300NH",
126 .mach_type = AR71XX_MACH_MZK_W300NH,
129 .mach_type = AR71XX_MACH_MZK_W04NU,
133 static int __init ar71xx_board_setup(char *name)
137 for (i = 0; i < ARRAY_SIZE(boards); i++)
138 if (strcmp(name, boards[i].name) == 0) {
139 ar71xx_mach = boards[i].mach_type;
145 __setup("board=", ar71xx_board_setup);
147 static int __init ar71xx_ethaddr_setup(char *str)
149 ar71xx_parse_mac_addr(str);
152 __setup("ethaddr=", ar71xx_ethaddr_setup);
154 static int __init ar71xx_kmac_setup(char *str)
156 ar71xx_parse_mac_addr(str);
159 __setup("kmac=", ar71xx_kmac_setup);
161 static inline int is_valid_ram_addr(void *addr)
163 if (((u32) addr > KSEG0) &&
164 ((u32) addr < (KSEG0 + AR71XX_MEM_SIZE_MAX)))
167 if (((u32) addr > KSEG1) &&
168 ((u32) addr < (KSEG1 + AR71XX_MEM_SIZE_MAX)))
174 static void __init ar71xx_prom_append_cmdline(const char *name,
179 snprintf(buf, sizeof(buf), " %s=%s", name, value);
180 strlcat(arcs_cmdline, buf, sizeof(arcs_cmdline));
183 static void __init ar71xx_prom_find_env(char **envp, const char *name)
185 int len = strlen(name);
188 if (!is_valid_ram_addr(envp))
191 for (p = envp; is_valid_ram_addr(*p); p++) {
192 if (strncmp(name, *p, len) == 0 && (*p)[len] == '=') {
193 ar71xx_prom_append_cmdline(name, *p + len + 1);
197 /* RedBoot env comes in pointer pairs - key, value */
198 if (strncmp(name, *p, len) == 0 && (*p)[len] == 0)
199 if (is_valid_ram_addr(*(++p))) {
200 ar71xx_prom_append_cmdline(name, *p);
206 static int __init ar71xx_prom_init_myloader(void)
208 struct myloader_info *mylo;
212 mylo = myloader_get_info();
217 case DEVID_COMPEX_WP543:
218 ar71xx_prom_append_cmdline("board", "WP543");
221 printk(KERN_WARNING "prom: unknown device id: %x\n",
227 snprintf(mac_buf, sizeof(mac_buf), "%02x:%02x:%02x:%02x:%02x:%02x",
228 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
230 ar71xx_prom_append_cmdline("ethaddr", mac_buf);
235 #ifdef CONFIG_IMAGE_CMDLINE_HACK
236 extern char __image_cmdline[];
238 static int __init ar71xx_use__image_cmdline(void)
240 char *p = __image_cmdline;
252 strlcpy(arcs_cmdline, p, sizeof(arcs_cmdline));
254 strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
255 strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
261 static int inline ar71xx_use__image_cmdline(void) { return 0; }
264 static __init void ar71xx_prom_init_cmdline(int argc, char **argv)
268 if (ar71xx_use__image_cmdline())
271 if (!is_valid_ram_addr(argv))
274 for (i = 0; i < argc; i++)
275 if (is_valid_ram_addr(argv[i])) {
276 strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
277 strlcat(arcs_cmdline, argv[i], sizeof(arcs_cmdline));
281 void __init prom_init(void)
285 printk(KERN_DEBUG "prom: fw_arg0=%08x, fw_arg1=%08x, "
286 "fw_arg2=%08x, fw_arg3=%08x\n",
287 (unsigned int)fw_arg0, (unsigned int)fw_arg1,
288 (unsigned int)fw_arg2, (unsigned int)fw_arg3);
291 ar71xx_mach = AR71XX_MACH_GENERIC;
293 if (ar71xx_prom_init_myloader())
296 ar71xx_prom_init_cmdline(fw_arg0, (char **)fw_arg1);
298 envp = (char **)fw_arg2;
299 ar71xx_prom_find_env(envp, "board");
300 ar71xx_prom_find_env(envp, "ethaddr");
303 void __init prom_free_prom_memory(void)
305 /* We do not have to prom memory to free */