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>
28 enum ar71xx_mach_type mach_type;
31 static struct board_rec boards[] __initdata = {
34 .mach_type = AR71XX_MACH_RB_411,
37 .mach_type = AR71XX_MACH_RB_411U,
40 .mach_type = AR71XX_MACH_RB_433,
43 .mach_type = AR71XX_MACH_RB_433U,
46 .mach_type = AR71XX_MACH_RB_450,
49 .mach_type = AR71XX_MACH_RB_450G,
52 .mach_type = AR71XX_MACH_RB_493,
55 .mach_type = AR71XX_MACH_AP81,
58 .mach_type = AR71XX_MACH_AP83,
61 .mach_type = AR71XX_MACH_AW_NR580,
64 .mach_type = AR71XX_MACH_DIR_825_B1,
67 .mach_type = AR71XX_MACH_TEW_632BRP,
70 .mach_type = AR71XX_MACH_DIR_615_C1,
73 .mach_type = AR71XX_MACH_TL_WR741ND,
75 .name = "TL-WR841N-v1.5",
76 .mach_type = AR71XX_MACH_TL_WR841N_V1,
79 .mach_type = AR71XX_MACH_TL_WR941ND,
81 .name = "TL-WR1043ND",
82 .mach_type = AR71XX_MACH_TL_WR1043ND,
85 .mach_type = AR71XX_MACH_UBNT_RS,
88 .mach_type = AR71XX_MACH_UBNT_RSPRO,
90 .name = "Ubiquiti AR71xx-based board",
91 .mach_type = AR71XX_MACH_UBNT_RS,
93 .name = "UBNT-LS-SR71",
94 .mach_type = AR71XX_MACH_UBNT_LSSR71,
97 .mach_type = AR71XX_MACH_UBNT_LSX,
100 .mach_type = AR71XX_MACH_UBNT_BULLET_M,
103 .mach_type = AR71XX_MACH_UBNT_ROCKET_M,
106 .mach_type = AR71XX_MACH_UBNT_NANO_M,
109 .mach_type = AR71XX_MACH_WNDR3700,
112 .mach_type = AR71XX_MACH_WNR2000,
115 .mach_type = AR71XX_MACH_WRT160NL,
118 .mach_type = AR71XX_MACH_WP543,
121 .mach_type = AR71XX_MACH_WRT400N,
124 .mach_type = AR71XX_MACH_PB42,
127 .mach_type = AR71XX_MACH_PB44,
129 .name = "MZK-W300NH",
130 .mach_type = AR71XX_MACH_MZK_W300NH,
133 .mach_type = AR71XX_MACH_MZK_W04NU,
137 static int __init ar71xx_board_setup(char *name)
141 for (i = 0; i < ARRAY_SIZE(boards); i++)
142 if (strcmp(name, boards[i].name) == 0) {
143 ar71xx_mach = boards[i].mach_type;
149 __setup("board=", ar71xx_board_setup);
151 static int __init ar71xx_ethaddr_setup(char *str)
153 ar71xx_parse_mac_addr(str);
156 __setup("ethaddr=", ar71xx_ethaddr_setup);
158 static int __init ar71xx_kmac_setup(char *str)
160 ar71xx_parse_mac_addr(str);
163 __setup("kmac=", ar71xx_kmac_setup);
165 static inline int is_valid_ram_addr(void *addr)
167 if (((u32) addr > KSEG0) &&
168 ((u32) addr < (KSEG0 + AR71XX_MEM_SIZE_MAX)))
171 if (((u32) addr > KSEG1) &&
172 ((u32) addr < (KSEG1 + AR71XX_MEM_SIZE_MAX)))
178 static void __init ar71xx_prom_append_cmdline(const char *name,
183 snprintf(buf, sizeof(buf), " %s=%s", name, value);
184 strlcat(arcs_cmdline, buf, sizeof(arcs_cmdline));
187 static void __init ar71xx_prom_find_env(char **envp, const char *name)
189 int len = strlen(name);
192 if (!is_valid_ram_addr(envp))
195 for (p = envp; is_valid_ram_addr(*p); p++) {
196 if (strncmp(name, *p, len) == 0 && (*p)[len] == '=') {
197 ar71xx_prom_append_cmdline(name, *p + len + 1);
201 /* RedBoot env comes in pointer pairs - key, value */
202 if (strncmp(name, *p, len) == 0 && (*p)[len] == 0)
203 if (is_valid_ram_addr(*(++p))) {
204 ar71xx_prom_append_cmdline(name, *p);
210 static int __init ar71xx_prom_init_myloader(void)
212 struct myloader_info *mylo;
216 mylo = myloader_get_info();
221 case DEVID_COMPEX_WP543:
222 ar71xx_prom_append_cmdline("board", "WP543");
225 printk(KERN_WARNING "prom: unknown device id: %x\n",
231 snprintf(mac_buf, sizeof(mac_buf), "%02x:%02x:%02x:%02x:%02x:%02x",
232 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
234 ar71xx_prom_append_cmdline("ethaddr", mac_buf);
239 #ifdef CONFIG_IMAGE_CMDLINE_HACK
240 extern char __image_cmdline[];
242 static int __init ar71xx_use__image_cmdline(void)
244 char *p = __image_cmdline;
256 strlcpy(arcs_cmdline, p, sizeof(arcs_cmdline));
258 strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
259 strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
265 static int inline ar71xx_use__image_cmdline(void) { return 0; }
268 static __init void ar71xx_prom_init_cmdline(int argc, char **argv)
272 if (ar71xx_use__image_cmdline())
275 if (!is_valid_ram_addr(argv))
278 for (i = 0; i < argc; i++)
279 if (is_valid_ram_addr(argv[i])) {
280 strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
281 strlcat(arcs_cmdline, argv[i], sizeof(arcs_cmdline));
285 void __init prom_init(void)
289 printk(KERN_DEBUG "prom: fw_arg0=%08x, fw_arg1=%08x, "
290 "fw_arg2=%08x, fw_arg3=%08x\n",
291 (unsigned int)fw_arg0, (unsigned int)fw_arg1,
292 (unsigned int)fw_arg2, (unsigned int)fw_arg3);
295 ar71xx_mach = AR71XX_MACH_GENERIC;
297 if (ar71xx_prom_init_myloader())
300 ar71xx_prom_init_cmdline(fw_arg0, (char **)fw_arg1);
302 envp = (char **)fw_arg2;
303 ar71xx_prom_find_env(envp, "board");
304 ar71xx_prom_find_env(envp, "ethaddr");
307 void __init prom_free_prom_memory(void)
309 /* We do not have to prom memory to free */