arch/mips/bcm47xx/board.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/errno.h>
   3 #include <linux/export.h>
   4 #include <linux/string.h>
   5 #include <bcm47xx.h>
   6 #include <bcm47xx_board.h>
   7
   8 struct bcm47xx_board_type {
   9         const enum bcm47xx_board board;
  10         const char *name;
  11 };
  12
  13 struct bcm47xx_board_type_list1 {
  14         struct bcm47xx_board_type board;
  15         const char *value1;
  16 };
  17
  18 struct bcm47xx_board_type_list2 {
  19         struct bcm47xx_board_type board;
  20         const char *value1;
  21         const char *value2;
  22 };
  23
  24 struct bcm47xx_board_type_list3 {
  25         struct bcm47xx_board_type board;
  26         const char *value1;
  27         const char *value2;
  28         const char *value3;
  29 };
  30
  31 struct bcm47xx_board_store {
  32         enum bcm47xx_board board;
  33         char name[BCM47XX_BOARD_MAX_NAME];
  34 };
  35
  36 /* model_name */
  37 static const
  38 struct bcm47xx_board_type_list1 bcm47xx_board_list_model_name[] __initconst = {
  39         {{BCM47XX_BOARD_DLINK_DIR130, "D-Link DIR-130"}, "DIR-130"},
  40         {{BCM47XX_BOARD_DLINK_DIR330, "D-Link DIR-330"}, "DIR-330"},
  41         { {0}, NULL},
  42 };
  43
  44 /* hardware_version */
  45 static const
  46 struct bcm47xx_board_type_list1 bcm47xx_board_list_hardware_version[] __initconst = {
  47         {{BCM47XX_BOARD_ASUS_RTN10U, "Asus RT-N10U"}, "RTN10U"},
  48         {{BCM47XX_BOARD_ASUS_RTN10D, "Asus RT-N10D"}, "RTN10D"},
  49         {{BCM47XX_BOARD_ASUS_RTN12, "Asus RT-N12"}, "RT-N12"},
  50         {{BCM47XX_BOARD_ASUS_RTN12B1, "Asus RT-N12B1"}, "RTN12B1"},
  51         {{BCM47XX_BOARD_ASUS_RTN12C1, "Asus RT-N12C1"}, "RTN12C1"},
  52         {{BCM47XX_BOARD_ASUS_RTN12D1, "Asus RT-N12D1"}, "RTN12D1"},
  53         {{BCM47XX_BOARD_ASUS_RTN12HP, "Asus RT-N12HP"}, "RTN12HP"},
  54         {{BCM47XX_BOARD_ASUS_RTN16, "Asus RT-N16"}, "RT-N16-"},
  55         {{BCM47XX_BOARD_ASUS_WL320GE, "Asus WL320GE"}, "WL320G-"},
  56         {{BCM47XX_BOARD_ASUS_WL330GE, "Asus WL330GE"}, "WL330GE-"},
  57         {{BCM47XX_BOARD_ASUS_WL500GD, "Asus WL500GD"}, "WL500gd-"},
  58         {{BCM47XX_BOARD_ASUS_WL500GPV1, "Asus WL500GP V1"}, "WL500gp-"},
  59         {{BCM47XX_BOARD_ASUS_WL500GPV2, "Asus WL500GP V2"}, "WL500GPV2-"},
  60         {{BCM47XX_BOARD_ASUS_WL500W, "Asus WL500W"}, "WL500gW-"},
  61         {{BCM47XX_BOARD_ASUS_WL520GC, "Asus WL520GC"}, "WL520GC-"},
  62         {{BCM47XX_BOARD_ASUS_WL520GU, "Asus WL520GU"}, "WL520GU-"},
  63         {{BCM47XX_BOARD_BELKIN_F7D3301, "Belkin F7D3301"}, "F7D3301"},
  64         {{BCM47XX_BOARD_BELKIN_F7D3302, "Belkin F7D3302"}, "F7D3302"},
  65         {{BCM47XX_BOARD_BELKIN_F7D4301, "Belkin F7D4301"}, "F7D4301"},
  66         {{BCM47XX_BOARD_BELKIN_F7D4302, "Belkin F7D4302"}, "F7D4302"},
  67         {{BCM47XX_BOARD_BELKIN_F7D4401, "Belkin F7D4401"}, "F7D4401"},
  68         { {0}, NULL},
  69 };
  70
  71 /* hardware_version, boardnum */
  72 static const
  73 struct bcm47xx_board_type_list2 bcm47xx_board_list_hw_version_num[] __initconst = {
  74         {{BCM47XX_BOARD_MICROSOFT_MN700, "Microsoft MN-700"}, "WL500-", "mn700"},
  75         {{BCM47XX_BOARD_ASUS_WL500G, "Asus WL500G"}, "WL500-", "asusX"},
  76         { {0}, NULL},
  77 };
  78
  79 /* productid */
  80 static const
  81 struct bcm47xx_board_type_list1 bcm47xx_board_list_productid[] __initconst = {
  82         {{BCM47XX_BOARD_ASUS_RTAC66U, "Asus RT-AC66U"}, "RT-AC66U"},
  83         {{BCM47XX_BOARD_ASUS_RTN10, "Asus RT-N10"}, "RT-N10"},
  84         {{BCM47XX_BOARD_ASUS_RTN10D, "Asus RT-N10D"}, "RT-N10D"},
  85         {{BCM47XX_BOARD_ASUS_RTN15U, "Asus RT-N15U"}, "RT-N15U"},
  86         {{BCM47XX_BOARD_ASUS_RTN16, "Asus RT-N16"}, "RT-N16"},
  87         {{BCM47XX_BOARD_ASUS_RTN53, "Asus RT-N53"}, "RT-N53"},
  88         {{BCM47XX_BOARD_ASUS_RTN66U, "Asus RT-N66U"}, "RT-N66U"},
  89         {{BCM47XX_BOARD_ASUS_WL300G, "Asus WL300G"}, "WL300g"},
  90         {{BCM47XX_BOARD_ASUS_WLHDD, "Asus WLHDD"}, "WLHDD"},
  91         { {0}, NULL},
  92 };
  93
  94 /* ModelId */
  95 static const
  96 struct bcm47xx_board_type_list1 bcm47xx_board_list_ModelId[] __initconst = {
  97         {{BCM47XX_BOARD_DELL_TM2300, "Dell TrueMobile 2300"}, "WX-5565"},
  98         {{BCM47XX_BOARD_MOTOROLA_WE800G, "Motorola WE800G"}, "WE800G"},
  99         {{BCM47XX_BOARD_MOTOROLA_WR850GP, "Motorola WR850GP"}, "WR850GP"},
 100         {{BCM47XX_BOARD_MOTOROLA_WR850GV2V3, "Motorola WR850G"}, "WR850G"},
 101         { {0}, NULL},
 102 };
 103
 104 /* melco_id or buf1falo_id */
 105 static const
 106 struct bcm47xx_board_type_list1 bcm47xx_board_list_melco_id[] __initconst = {
 107         {{BCM47XX_BOARD_BUFFALO_WBR2_G54, "Buffalo WBR2-G54"}, "29bb0332"},
 108         {{BCM47XX_BOARD_BUFFALO_WHR2_A54G54, "Buffalo WHR2-A54G54"}, "290441dd"},
 109         {{BCM47XX_BOARD_BUFFALO_WHR_G125, "Buffalo WHR-G125"}, "32093"},
 110         {{BCM47XX_BOARD_BUFFALO_WHR_G54S, "Buffalo WHR-G54S"}, "30182"},
 111         {{BCM47XX_BOARD_BUFFALO_WHR_HP_G54, "Buffalo WHR-HP-G54"}, "30189"},
 112         {{BCM47XX_BOARD_BUFFALO_WLA2_G54L, "Buffalo WLA2-G54L"}, "29129"},
 113         {{BCM47XX_BOARD_BUFFALO_WZR_G300N, "Buffalo WZR-G300N"}, "31120"},
 114         {{BCM47XX_BOARD_BUFFALO_WZR_RS_G54, "Buffalo WZR-RS-G54"}, "30083"},
 115         {{BCM47XX_BOARD_BUFFALO_WZR_RS_G54HP, "Buffalo WZR-RS-G54HP"}, "30103"},
 116         { {0}, NULL},
 117 };
 118
 119 /* boot_hw_model, boot_hw_ver */
 120 static const
 121 struct bcm47xx_board_type_list2 bcm47xx_board_list_boot_hw[] __initconst = {
 122         /* like WRT160N v3.0 */
 123         {{BCM47XX_BOARD_CISCO_M10V1, "Cisco M10"}, "M10", "1.0"},
 124         /* like WRT310N v2.0 */
 125         {{BCM47XX_BOARD_CISCO_M20V1, "Cisco M20"}, "M20", "1.0"},
 126         {{BCM47XX_BOARD_LINKSYS_E900V1, "Linksys E900 V1"}, "E900", "1.0"},
 127         /* like WRT160N v3.0 */
 128         {{BCM47XX_BOARD_LINKSYS_E1000V1, "Linksys E1000 V1"}, "E100", "1.0"},
 129         {{BCM47XX_BOARD_LINKSYS_E1000V2, "Linksys E1000 V2"}, "E1000", "2.0"},
 130         {{BCM47XX_BOARD_LINKSYS_E1000V21, "Linksys E1000 V2.1"}, "E1000", "2.1"},
 131         {{BCM47XX_BOARD_LINKSYS_E1200V2, "Linksys E1200 V2"}, "E1200", "2.0"},
 132         {{BCM47XX_BOARD_LINKSYS_E2000V1, "Linksys E2000 V1"}, "Linksys E2000", "1.0"},
 133         {{BCM47XX_BOARD_LINKSYS_E2500V3, "Linksys E2500 V3"}, "E2500", "1.0"},
 134         /* like WRT610N v2.0 */
 135         {{BCM47XX_BOARD_LINKSYS_E3000V1, "Linksys E3000 V1"}, "E300", "1.0"},
 136         {{BCM47XX_BOARD_LINKSYS_E3200V1, "Linksys E3200 V1"}, "E3200", "1.0"},
 137         {{BCM47XX_BOARD_LINKSYS_E4200V1, "Linksys E4200 V1"}, "E4200", "1.0"},
 138         {{BCM47XX_BOARD_LINKSYS_WRT150NV11, "Linksys WRT150N V1.1"}, "WRT150N", "1.1"},
 139         {{BCM47XX_BOARD_LINKSYS_WRT150NV1, "Linksys WRT150N V1"}, "WRT150N", "1"},
 140         {{BCM47XX_BOARD_LINKSYS_WRT160NV1, "Linksys WRT160N V1"}, "WRT160N", "1.0"},
 141         {{BCM47XX_BOARD_LINKSYS_WRT160NV3, "Linksys WRT160N V3"}, "WRT160N", "3.0"},
 142         {{BCM47XX_BOARD_LINKSYS_WRT300NV11, "Linksys WRT300N V1.1"}, "WRT300N", "1.1"},
 143         {{BCM47XX_BOARD_LINKSYS_WRT310NV1, "Linksys WRT310N V1"}, "WRT310N", "1.0"},
 144         {{BCM47XX_BOARD_LINKSYS_WRT310NV2, "Linksys WRT310N V2"}, "WRT310N", "2.0"},
 145         {{BCM47XX_BOARD_LINKSYS_WRT320N_V1, "Linksys WRT320N V1"}, "WRT320N", "1.0"},
 146         {{BCM47XX_BOARD_LINKSYS_WRT54G3GV2, "Linksys WRT54G3GV2-VF"}, "WRT54G3GV2-VF", "1.0"},
 147         {{BCM47XX_BOARD_LINKSYS_WRT610NV1, "Linksys WRT610N V1"}, "WRT610N", "1.0"},
 148         {{BCM47XX_BOARD_LINKSYS_WRT610NV2, "Linksys WRT610N V2"}, "WRT610N", "2.0"},
 149         { {0}, NULL},
 150 };
 151
 152 /* board_id */
 153 static const
 154 struct bcm47xx_board_type_list1 bcm47xx_board_list_board_id[] __initconst = {
 155         {{BCM47XX_BOARD_LUXUL_ABR_4400_V1, "Luxul ABR-4400 V1"}, "luxul_abr4400_v1"},
 156         {{BCM47XX_BOARD_LUXUL_XAP_310_V1, "Luxul XAP-310 V1"}, "luxul_xap310_v1"},
 157         {{BCM47XX_BOARD_LUXUL_XAP_1210_V1, "Luxul XAP-1210 V1"}, "luxul_xap1210_v1"},
 158         {{BCM47XX_BOARD_LUXUL_XAP_1230_V1, "Luxul XAP-1230 V1"}, "luxul_xap1230_v1"},
 159         {{BCM47XX_BOARD_LUXUL_XAP_1240_V1, "Luxul XAP-1240 V1"}, "luxul_xap1240_v1"},
 160         {{BCM47XX_BOARD_LUXUL_XAP_1500_V1, "Luxul XAP-1500 V1"}, "luxul_xap1500_v1"},
 161         {{BCM47XX_BOARD_LUXUL_XBR_4400_V1, "Luxul XBR-4400 V1"}, "luxul_xbr4400_v1"},
 162         {{BCM47XX_BOARD_LUXUL_XVW_P30_V1, "Luxul XVW-P30 V1"}, "luxul_xvwp30_v1"},
 163         {{BCM47XX_BOARD_LUXUL_XWR_600_V1, "Luxul XWR-600 V1"}, "luxul_xwr600_v1"},
 164         {{BCM47XX_BOARD_LUXUL_XWR_1750_V1, "Luxul XWR-1750 V1"}, "luxul_xwr1750_v1"},
 165         {{BCM47XX_BOARD_NETGEAR_R6200_V1, "Netgear R6200 V1"}, "U12H192T00_NETGEAR"},
 166         {{BCM47XX_BOARD_NETGEAR_R6300_V1, "Netgear R6300 V1"}, "U12H218T00_NETGEAR"},
 167         {{BCM47XX_BOARD_NETGEAR_WGR614V8, "Netgear WGR614 V8"}, "U12H072T00_NETGEAR"},
 168         {{BCM47XX_BOARD_NETGEAR_WGR614V9, "Netgear WGR614 V9"}, "U12H094T00_NETGEAR"},
 169         {{BCM47XX_BOARD_NETGEAR_WGR614_V10, "Netgear WGR614 V10"}, "U12H139T01_NETGEAR"},
 170         {{BCM47XX_BOARD_NETGEAR_WN2500RP_V1, "Netgear WN2500RP V1"}, "U12H197T00_NETGEAR"},
 171         {{BCM47XX_BOARD_NETGEAR_WN2500RP_V2, "Netgear WN2500RP V2"}, "U12H294T00_NETGEAR"},
 172         {{BCM47XX_BOARD_NETGEAR_WNDR3300, "Netgear WNDR3300"}, "U12H093T00_NETGEAR"},
 173         {{BCM47XX_BOARD_NETGEAR_WNDR3400V1, "Netgear WNDR3400 V1"}, "U12H155T00_NETGEAR"},
 174         {{BCM47XX_BOARD_NETGEAR_WNDR3400V2, "Netgear WNDR3400 V2"}, "U12H187T00_NETGEAR"},
 175         {{BCM47XX_BOARD_NETGEAR_WNDR3400_V3, "Netgear WNDR3400 V3"}, "U12H208T00_NETGEAR"},
 176         {{BCM47XX_BOARD_NETGEAR_WNDR3400VCNA, "Netgear WNDR3400 Vcna"}, "U12H155T01_NETGEAR"},
 177         {{BCM47XX_BOARD_NETGEAR_WNDR3700V3, "Netgear WNDR3700 V3"}, "U12H194T00_NETGEAR"},
 178         {{BCM47XX_BOARD_NETGEAR_WNDR4000, "Netgear WNDR4000"}, "U12H181T00_NETGEAR"},
 179         {{BCM47XX_BOARD_NETGEAR_WNDR4500V1, "Netgear WNDR4500 V1"}, "U12H189T00_NETGEAR"},
 180         {{BCM47XX_BOARD_NETGEAR_WNDR4500V2, "Netgear WNDR4500 V2"}, "U12H224T00_NETGEAR"},
 181         {{BCM47XX_BOARD_NETGEAR_WNR1000_V3, "Netgear WNR1000 V3"}, "U12H139T00_NETGEAR"},
 182         {{BCM47XX_BOARD_NETGEAR_WNR1000_V3, "Netgear WNR1000 V3"}, "U12H139T50_NETGEAR"},
 183         {{BCM47XX_BOARD_NETGEAR_WNR2000, "Netgear WNR2000"}, "U12H114T00_NETGEAR"},
 184         {{BCM47XX_BOARD_NETGEAR_WNR3500L, "Netgear WNR3500L"}, "U12H136T99_NETGEAR"},
 185         {{BCM47XX_BOARD_NETGEAR_WNR3500L_V2, "Netgear WNR3500L V2"}, "U12H172T00_NETGEAR"},
 186         {{BCM47XX_BOARD_NETGEAR_WNR3500U, "Netgear WNR3500U"}, "U12H136T00_NETGEAR"},
 187         {{BCM47XX_BOARD_NETGEAR_WNR3500V2, "Netgear WNR3500 V2"}, "U12H127T00_NETGEAR"},
 188         {{BCM47XX_BOARD_NETGEAR_WNR3500V2VC, "Netgear WNR3500 V2vc"}, "U12H127T70_NETGEAR"},
 189         {{BCM47XX_BOARD_NETGEAR_WNR834BV2, "Netgear WNR834B V2"}, "U12H081T00_NETGEAR"},
 190         { {0}, NULL},
 191 };
 192
 193 /* boardtype, boardnum, boardrev */
 194 static const
 195 struct bcm47xx_board_type_list3 bcm47xx_board_list_board[] __initconst = {
 196         {{BCM47XX_BOARD_HUAWEI_B593U_12, "Huawei B593u-12"}, "0x053d", "1234", "0x1301"},
 197         {{BCM47XX_BOARD_HUAWEI_E970, "Huawei E970"}, "0x048e", "0x5347", "0x11"},
 198         {{BCM47XX_BOARD_PHICOMM_M1, "Phicomm M1"}, "0x0590", "80", "0x1104"},
 199         {{BCM47XX_BOARD_ZTE_H218N, "ZTE H218N"}, "0x053d", "1234", "0x1305"},
 200         {{BCM47XX_BOARD_NETGEAR_WNR3500L, "Netgear WNR3500L"}, "0x04CF", "3500", "02"},
 201         {{BCM47XX_BOARD_NETGEAR_WNR3500L_V2, "Netgear WNR3500L V2"}, "0x052b", "3500L", "02"},
 202         {{BCM47XX_BOARD_LINKSYS_WRT54G_TYPE_0101, "Linksys WRT54G/GS/GL"}, "0x0101", "42", "0x10"},
 203         {{BCM47XX_BOARD_LINKSYS_WRT54G_TYPE_0467, "Linksys WRT54G/GS/GL"}, "0x0467", "42", "0x10"},
 204         {{BCM47XX_BOARD_LINKSYS_WRT54G_TYPE_0708, "Linksys WRT54G/GS/GL"}, "0x0708", "42", "0x10"},
 205         { {0}, NULL},
 206 };
 207
 208 /* boardtype, boardrev */
 209 static const
 210 struct bcm47xx_board_type_list2 bcm47xx_board_list_board_type_rev[] __initconst = {
 211         {{BCM47XX_BOARD_SIEMENS_SE505V2, "Siemens SE505 V2"}, "0x0101", "0x10"},
 212         { {0}, NULL},
 213 };
 214
 215 /*
 216  * Some devices don't use any common NVRAM entry for identification and they
 217  * have only one model specific variable.
 218  * They don't deserve own arrays, let's group them there using key-value array.
 219  */
 220 static const
 221 struct bcm47xx_board_type_list2 bcm47xx_board_list_key_value[] __initconst = {
 222         {{BCM47XX_BOARD_ASUS_WL700GE, "Asus WL700"}, "model_no", "WL700"},
 223         {{BCM47XX_BOARD_LINKSYS_WRT300N_V1, "Linksys WRT300N V1"}, "router_name", "WRT300N"},
 224         {{BCM47XX_BOARD_LINKSYS_WRT600N_V11, "Linksys WRT600N V1.1"}, "Model_Name", "WRT600N"},
 225         {{BCM47XX_BOARD_LINKSYS_WRTSL54GS, "Linksys WRTSL54GS"}, "machine_name", "WRTSL54GS"},
 226         { {0}, NULL},
 227 };
 228
 229 static const
 230 struct bcm47xx_board_type bcm47xx_board_unknown[] __initconst = {
 231         {BCM47XX_BOARD_UNKNOWN, "Unknown Board"},
 232 };
 233
 234 static struct bcm47xx_board_store bcm47xx_board = {BCM47XX_BOARD_NO, "Unknown Board"};
 235
 236 static __init const struct bcm47xx_board_type *bcm47xx_board_get_nvram(void)
 237 {
 238         char buf1[30];
 239         char buf2[30];
 240         char buf3[30];
 241         const struct bcm47xx_board_type_list1 *e1;
 242         const struct bcm47xx_board_type_list2 *e2;
 243         const struct bcm47xx_board_type_list3 *e3;
 244
 245         if (bcm47xx_nvram_getenv("model_name", buf1, sizeof(buf1)) >= 0) {
 246                 for (e1 = bcm47xx_board_list_model_name; e1->value1; e1++) {
 247                         if (!strcmp(buf1, e1->value1))
 248                                 return &e1->board;
 249                 }
 250         }
 251
 252         if (bcm47xx_nvram_getenv("hardware_version", buf1, sizeof(buf1)) >= 0) {
 253                 for (e1 = bcm47xx_board_list_hardware_version; e1->value1; e1++) {
 254                         if (strstarts(buf1, e1->value1))
 255                                 return &e1->board;
 256                 }
 257         }
 258
 259         if (bcm47xx_nvram_getenv("hardware_version", buf1, sizeof(buf1)) >= 0 &&
 260             bcm47xx_nvram_getenv("boardnum", buf2, sizeof(buf2)) >= 0) {
 261                 for (e2 = bcm47xx_board_list_hw_version_num; e2->value1; e2++) {
 262                         if (!strstarts(buf1, e2->value1) &&
 263                             !strcmp(buf2, e2->value2))
 264                                 return &e2->board;
 265                 }
 266         }
 267
 268         if (bcm47xx_nvram_getenv("productid", buf1, sizeof(buf1)) >= 0) {
 269                 for (e1 = bcm47xx_board_list_productid; e1->value1; e1++) {
 270                         if (!strcmp(buf1, e1->value1))
 271                                 return &e1->board;
 272                 }
 273         }
 274
 275         if (bcm47xx_nvram_getenv("ModelId", buf1, sizeof(buf1)) >= 0) {
 276                 for (e1 = bcm47xx_board_list_ModelId; e1->value1; e1++) {
 277                         if (!strcmp(buf1, e1->value1))
 278                                 return &e1->board;
 279                 }
 280         }
 281
 282         if (bcm47xx_nvram_getenv("melco_id", buf1, sizeof(buf1)) >= 0 ||
 283             bcm47xx_nvram_getenv("buf1falo_id", buf1, sizeof(buf1)) >= 0) {
 284                 /* buffalo hardware, check id for specific hardware matches */
 285                 for (e1 = bcm47xx_board_list_melco_id; e1->value1; e1++) {
 286                         if (!strcmp(buf1, e1->value1))
 287                                 return &e1->board;
 288                 }
 289         }
 290
 291         if (bcm47xx_nvram_getenv("boot_hw_model", buf1, sizeof(buf1)) >= 0 &&
 292             bcm47xx_nvram_getenv("boot_hw_ver", buf2, sizeof(buf2)) >= 0) {
 293                 for (e2 = bcm47xx_board_list_boot_hw; e2->value1; e2++) {
 294                         if (!strcmp(buf1, e2->value1) &&
 295                             !strcmp(buf2, e2->value2))
 296                                 return &e2->board;
 297                 }
 298         }
 299
 300         if (bcm47xx_nvram_getenv("board_id", buf1, sizeof(buf1)) >= 0) {
 301                 for (e1 = bcm47xx_board_list_board_id; e1->value1; e1++) {
 302                         if (!strcmp(buf1, e1->value1))
 303                                 return &e1->board;
 304                 }
 305         }
 306
 307         if (bcm47xx_nvram_getenv("boardtype", buf1, sizeof(buf1)) >= 0 &&
 308             bcm47xx_nvram_getenv("boardnum", buf2, sizeof(buf2)) >= 0 &&
 309             bcm47xx_nvram_getenv("boardrev", buf3, sizeof(buf3)) >= 0) {
 310                 for (e3 = bcm47xx_board_list_board; e3->value1; e3++) {
 311                         if (!strcmp(buf1, e3->value1) &&
 312                             !strcmp(buf2, e3->value2) &&
 313                             !strcmp(buf3, e3->value3))
 314                                 return &e3->board;
 315                 }
 316         }
 317
 318         if (bcm47xx_nvram_getenv("boardtype", buf1, sizeof(buf1)) >= 0 &&
 319             bcm47xx_nvram_getenv("boardrev", buf2, sizeof(buf2)) >= 0 &&
 320             bcm47xx_nvram_getenv("boardnum", buf3, sizeof(buf3)) ==  -ENOENT) {
 321                 for (e2 = bcm47xx_board_list_board_type_rev; e2->value1; e2++) {
 322                         if (!strcmp(buf1, e2->value1) &&
 323                             !strcmp(buf2, e2->value2))
 324                                 return &e2->board;
 325                 }
 326         }
 327
 328         for (e2 = bcm47xx_board_list_key_value; e2->value1; e2++) {
 329                 if (bcm47xx_nvram_getenv(e2->value1, buf1, sizeof(buf1)) >= 0) {
 330                         if (!strcmp(buf1, e2->value2))
 331                                 return &e2->board;
 332                 }
 333         }
 334
 335         return bcm47xx_board_unknown;
 336 }
 337
 338 void __init bcm47xx_board_detect(void)
 339 {
 340         int err;
 341         char buf[10];
 342         const struct bcm47xx_board_type *board_detected;
 343
 344         if (bcm47xx_board.board != BCM47XX_BOARD_NO)
 345                 return;
 346
 347         /* check if the nvram is available */
 348         err = bcm47xx_nvram_getenv("boardtype", buf, sizeof(buf));
 349
 350         /* init of nvram failed, probably too early now */
 351         if (err == -ENXIO)
 352                 return;
 353
 354         board_detected = bcm47xx_board_get_nvram();
 355         bcm47xx_board.board = board_detected->board;
 356         strscpy(bcm47xx_board.name, board_detected->name,
 357                 BCM47XX_BOARD_MAX_NAME);
 358 }
 359
 360 enum bcm47xx_board bcm47xx_board_get(void)
 361 {
 362         return bcm47xx_board.board;
 363 }
 364 EXPORT_SYMBOL(bcm47xx_board_get);
 365
 366 const char *bcm47xx_board_get_name(void)
 367 {
 368         return bcm47xx_board.name;
 369 }
 370 EXPORT_SYMBOL(bcm47xx_board_get_name);