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,
74 .name = "TL-WR841N-v1.5",
75 .mach_type = AR71XX_MACH_TL_WR841N_V1,
78 .mach_type = AR71XX_MACH_TL_WR941ND,
80 .name = "TL-WR1043ND",
81 .mach_type = AR71XX_MACH_TL_WR1043ND,
84 .mach_type = AR71XX_MACH_UBNT_RS,
87 .mach_type = AR71XX_MACH_UBNT_RSPRO,
89 .name = "Ubiquiti AR71xx-based board",
90 .mach_type = AR71XX_MACH_UBNT_RS,
92 .name = "UBNT-LS-SR71",
93 .mach_type = AR71XX_MACH_UBNT_LSSR71,
96 .mach_type = AR71XX_MACH_UBNT_LSX,
99 .mach_type = AR71XX_MACH_UBNT_BULLET_M,
102 .mach_type = AR71XX_MACH_UBNT_ROCKET_M,
105 .mach_type = AR71XX_MACH_UBNT_NANO_M,
108 .mach_type = AR71XX_MACH_WNDR3700,
111 .mach_type = AR71XX_MACH_WNR2000,
114 .mach_type = AR71XX_MACH_WRT160NL,
117 .mach_type = AR71XX_MACH_WP543,
120 .mach_type = AR71XX_MACH_WRT400N,
123 .mach_type = AR71XX_MACH_PB42,
126 .mach_type = AR71XX_MACH_PB44,
128 .name = "MZK-W300NH",
129 .mach_type = AR71XX_MACH_MZK_W300NH,
132 .mach_type = AR71XX_MACH_MZK_W04NU,
136 static int __init ar71xx_board_setup(char *name)
140 for (i = 0; i < ARRAY_SIZE(boards); i++)
141 if (strcmp(name, boards[i].name) == 0) {
142 ar71xx_mach = boards[i].mach_type;
148 __setup("board=", ar71xx_board_setup);
150 static int __init ar71xx_ethaddr_setup(char *str)
152 ar71xx_parse_mac_addr(str);
155 __setup("ethaddr=", ar71xx_ethaddr_setup);
157 static int __init ar71xx_kmac_setup(char *str)
159 ar71xx_parse_mac_addr(str);
162 __setup("kmac=", ar71xx_kmac_setup);
164 static inline int is_valid_ram_addr(void *addr)
166 if (((u32) addr > KSEG0) &&
167 ((u32) addr < (KSEG0 + AR71XX_MEM_SIZE_MAX)))
170 if (((u32) addr > KSEG1) &&
171 ((u32) addr < (KSEG1 + AR71XX_MEM_SIZE_MAX)))
177 static void __init ar71xx_prom_append_cmdline(const char *name,
182 snprintf(buf, sizeof(buf), " %s=%s", name, value);
183 strlcat(arcs_cmdline, buf, sizeof(arcs_cmdline));
186 static void __init ar71xx_prom_find_env(char **envp, const char *name)
188 int len = strlen(name);
191 if (!is_valid_ram_addr(envp))
194 for (p = envp; is_valid_ram_addr(*p); p++) {
195 if (strncmp(name, *p, len) == 0 && (*p)[len] == '=') {
196 ar71xx_prom_append_cmdline(name, *p + len + 1);
200 /* RedBoot env comes in pointer pairs - key, value */
201 if (strncmp(name, *p, len) == 0 && (*p)[len] == 0)
202 if (is_valid_ram_addr(*(++p))) {
203 ar71xx_prom_append_cmdline(name, *p);
209 static int __init ar71xx_prom_init_myloader(void)
211 struct myloader_info *mylo;
215 mylo = myloader_get_info();
220 case DEVID_COMPEX_WP543:
221 ar71xx_prom_append_cmdline("board", "WP543");
224 printk(KERN_WARNING "prom: unknown device id: %x\n",
230 snprintf(mac_buf, sizeof(mac_buf), "%02x:%02x:%02x:%02x:%02x:%02x",
231 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
233 ar71xx_prom_append_cmdline("ethaddr", mac_buf);
238 #ifdef CONFIG_IMAGE_CMDLINE_HACK
239 extern char __image_cmdline[];
241 static int __init ar71xx_use__image_cmdline(void)
243 char *p = __image_cmdline;
255 strlcpy(arcs_cmdline, p, sizeof(arcs_cmdline));
257 strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
258 strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
264 static int inline ar71xx_use__image_cmdline(void) { return 0; }
267 static __init void ar71xx_prom_init_cmdline(int argc, char **argv)
271 if (ar71xx_use__image_cmdline())
274 if (!is_valid_ram_addr(argv))
277 for (i = 0; i < argc; i++)
278 if (is_valid_ram_addr(argv[i])) {
279 strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
280 strlcat(arcs_cmdline, argv[i], sizeof(arcs_cmdline));
284 void __init prom_init(void)
288 printk(KERN_DEBUG "prom: fw_arg0=%08x, fw_arg1=%08x, "
289 "fw_arg2=%08x, fw_arg3=%08x\n",
290 (unsigned int)fw_arg0, (unsigned int)fw_arg1,
291 (unsigned int)fw_arg2, (unsigned int)fw_arg3);
294 ar71xx_mach = AR71XX_MACH_GENERIC;
296 if (ar71xx_prom_init_myloader())
299 ar71xx_prom_init_cmdline(fw_arg0, (char **)fw_arg1);
301 envp = (char **)fw_arg2;
302 ar71xx_prom_find_env(envp, "board");
303 ar71xx_prom_find_env(envp, "ethaddr");
306 void __init prom_free_prom_memory(void)
308 /* We do not have to prom memory to free */