target/linux/adm5120/files/arch/mips/adm5120/prom.c

   1 /*
   2  *  $Id$
   3  *
   4  *  ADM5120 specific prom routines
   5  *
   6  *  Copyright (C) 2007 OpenWrt.org
   7  *  Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
   8  *
   9  *  This program is free software; you can redistribute it and/or
  10  *  modify it under the terms of the GNU General Public License
  11  *  as published by the Free Software Foundation; either version 2
  12  *  of the License, or (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the
  21  *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  22  *  Boston, MA  02110-1301, USA.
  23  *
  24  */
  25
  26 #include <linux/init.h>
  27 #include <linux/kernel.h>
  28 #include <linux/string.h>
  29 #include <linux/mm.h>
  30
  31 #include <asm/bootinfo.h>
  32 #include <asm/addrspace.h>
  33
  34 #include <asm/mach-adm5120/adm5120_info.h>
  35 #include <asm/mach-adm5120/adm5120_defs.h>
  36 #include <asm/mach-adm5120/adm5120_uart.h>
  37
  38 #include <prom/cfe.h>
  39 #include <prom/generic.h>
  40 #include <prom/routerboot.h>
  41 #include <prom/myloader.h>
  42 #include <prom/zynos.h>
  43
  44 unsigned int adm5120_prom_type  = ADM5120_PROM_GENERIC;
  45
  46 struct board_desc {
  47         unsigned long   mach_type;
  48         char            *name;
  49 };
  50
  51 #define DEFBOARD(n, mt) { .mach_type = (mt), .name = (n)}
  52 static struct board_desc common_boards[] __initdata = {
  53         /* Cellvision/SparkLAN boards */
  54         DEFBOARD("CAS-630",             MACH_ADM5120_CAS630),
  55         DEFBOARD("CAS-670",             MACH_ADM5120_CAS670),
  56         DEFBOARD("CAS-771",             MACH_ADM5120_CAS771),
  57         DEFBOARD("CAS-790",             MACH_ADM5120_CAS790),
  58         DEFBOARD("CAS-861",             MACH_ADM5120_CAS861),
  59         /* Compex boards */
  60         DEFBOARD("WP54G-WRT",           MACH_ADM5120_WP54G_WRT),
  61         /* Edimax boards */
  62         DEFBOARD("BR-6104K",            MACH_ADM5120_BR6104K),
  63         DEFBOARD("BR-6104KP",           MACH_ADM5120_BR6104K),
  64         /* Infineon boards */
  65         DEFBOARD("EASY 5120P-ATA",      MACH_ADM5120_EASY5120PATA),
  66         DEFBOARD("EASY 5120-RT",        MACH_ADM5120_EASY5120RT),
  67         DEFBOARD("EASY 5120-WVoIP",     MACH_ADM5120_EASY5120WVOIP),
  68         DEFBOARD("EASY 83000",          MACH_ADM5120_EASY83000),
  69         /* Mikrotik RouterBOARDs */
  70         DEFBOARD("111",                 MACH_ADM5120_RB_111),
  71         DEFBOARD("112",                 MACH_ADM5120_RB_112),
  72         DEFBOARD("133",                 MACH_ADM5120_RB_133),
  73         DEFBOARD("133C",                MACH_ADM5120_RB_133C),
  74         DEFBOARD("133C3",               MACH_ADM5120_RB_133C),
  75         DEFBOARD("150",                 MACH_ADM5120_RB_153), /* it's intentional */
  76         DEFBOARD("153",                 MACH_ADM5120_RB_153),
  77         DEFBOARD("miniROUTER",          MACH_ADM5120_RB_150),
  78 };
  79
  80 static unsigned long __init find_machtype_byname(char *name)
  81 {
  82         unsigned long ret;
  83         int i;
  84
  85         ret = MACH_ADM5120_GENERIC;
  86         if (name == NULL)
  87                 goto out;
  88
  89         if (*name == '\0')
  90                 goto out;
  91
  92         for (i=0; i<ARRAY_SIZE(common_boards); i++) {
  93                 if (strcmp(common_boards[i].name, name) == 0) {
  94                         ret = common_boards[i].mach_type;
  95                         break;
  96                 }
  97         }
  98
  99 out:
 100         return ret;
 101 }
 102
 103 static unsigned long __init detect_machtype_routerboot(void)
 104 {
 105         char *name;
 106
 107         name = routerboot_get_boardname();
 108         return find_machtype_byname(name);
 109 }
 110
 111 static unsigned long __init detect_machtype_generic(void)
 112 {
 113         char *name;
 114
 115         name = generic_prom_getenv("board_name");
 116         return find_machtype_byname(name);
 117 }
 118
 119 unsigned long __init detect_machtype_cfe(void)
 120 {
 121         char *name;
 122
 123         name = cfe_getenv("BOARD_NAME");
 124         return find_machtype_byname(name);
 125 }
 126
 127 static struct {
 128         unsigned long   mach_type;
 129         u16             vendor_id;
 130         u16             board_id;
 131 } zynos_boards[] __initdata = {
 132 #define ZYNOS_BOARD(vi, bi, mt) { .vendor_id = (vi), .board_id = (bi), \
 133                 .mach_type = (mt) }
 134
 135 #define ZYXEL_BOARD(bi, mt) ZYNOS_BOARD(ZYNOS_VENDOR_ID_ZYXEL, bi, mt)
 136 #define DLINK_BOARD(bi, mt) ZYNOS_BOARD(ZYNOS_VENDOR_ID_DLINK, bi, mt)
 137 #define LUCENT_BOARD(bi, mt) ZYNOS_BOARD(ZYNOS_VENDOR_ID_LUCENT, bi, mt)
 138         ZYXEL_BOARD(ZYNOS_BOARD_HS100,  MACH_ADM5120_HS100),
 139         ZYXEL_BOARD(ZYNOS_BOARD_P334,   MACH_ADM5120_P334),
 140         ZYXEL_BOARD(ZYNOS_BOARD_P334U,  MACH_ADM5120_P334U),
 141         ZYXEL_BOARD(ZYNOS_BOARD_P334W,  MACH_ADM5120_P334W),
 142         ZYXEL_BOARD(ZYNOS_BOARD_P334WH, MACH_ADM5120_P334WH),
 143         ZYXEL_BOARD(ZYNOS_BOARD_P334WHD, MACH_ADM5120_P334WHD),
 144         ZYXEL_BOARD(ZYNOS_BOARD_P334WT, MACH_ADM5120_P334WT),
 145         ZYXEL_BOARD(ZYNOS_BOARD_P335,   MACH_ADM5120_P335),
 146         ZYXEL_BOARD(ZYNOS_BOARD_P335PLUS, MACH_ADM5120_P335PLUS),
 147         ZYXEL_BOARD(ZYNOS_BOARD_P335U,  MACH_ADM5120_P335U)
 148 };
 149
 150 static unsigned long __init detect_machtype_bootbase(void)
 151 {
 152         unsigned long ret;
 153         int i;
 154
 155         ret = MACH_ADM5120_GENERIC;
 156         for (i=0; i<ARRAY_SIZE(zynos_boards); i++) {
 157                 if (zynos_boards[i].vendor_id == bootbase_info.vendor_id &&
 158                         zynos_boards[i].board_id == bootbase_info.board_id) {
 159                         ret = zynos_boards[i].mach_type;
 160                         break;
 161                 }
 162         }
 163
 164         return ret;
 165 }
 166
 167 static struct {
 168         unsigned long   mach_type;
 169         u16     vid;
 170         u16     did;
 171         u16     svid;
 172         u16     sdid;
 173 } mylo_boards[]  __initdata = {
 174 #define MYLO_BOARD(v,d,sv,sd,mt) { .vid = (v), .did = (d), .svid = (sv), \
 175         .sdid = (sd), .mach_type = (mt) }
 176 #define COMPEX_BOARD(d,mt) MYLO_BOARD(VENID_COMPEX,(d),VENID_COMPEX,(d),(mt))
 177
 178         COMPEX_BOARD(DEVID_COMPEX_NP27G, MACH_ADM5120_NP27G),
 179         COMPEX_BOARD(DEVID_COMPEX_NP28G, MACH_ADM5120_NP28G),
 180         COMPEX_BOARD(DEVID_COMPEX_NP28GHS, MACH_ADM5120_NP28GHS),
 181         COMPEX_BOARD(DEVID_COMPEX_WP54G, MACH_ADM5120_WP54G),
 182         COMPEX_BOARD(DEVID_COMPEX_WP54Gv1C, MACH_ADM5120_WP54Gv1C),
 183         COMPEX_BOARD(DEVID_COMPEX_WP54AG, MACH_ADM5120_WP54AG),
 184         COMPEX_BOARD(DEVID_COMPEX_WPP54G, MACH_ADM5120_WPP54G),
 185         COMPEX_BOARD(DEVID_COMPEX_WPP54AG, MACH_ADM5120_WPP54AG),
 186 };
 187
 188 static unsigned long __init detect_machtype_myloader(void)
 189 {
 190         unsigned long ret;
 191         int i;
 192
 193         ret = MACH_ADM5120_GENERIC;
 194         for (i=0; i<ARRAY_SIZE(mylo_boards); i++) {
 195                 if (mylo_boards[i].vid == myloader_info.vid &&
 196                         mylo_boards[i].did == myloader_info.did &&
 197                         mylo_boards[i].svid == myloader_info.svid &&
 198                         mylo_boards[i].sdid == myloader_info.sdid) {
 199                         ret = mylo_boards[i].mach_type;
 200                         break;
 201                 }
 202         }
 203
 204         return ret;
 205 }
 206
 207 static void __init prom_detect_machtype(void)
 208 {
 209         if (bootbase_present()) {
 210                 adm5120_prom_type = ADM5120_PROM_BOOTBASE;
 211                 mips_machtype = detect_machtype_bootbase();
 212                 return;
 213         }
 214
 215         if (cfe_present()) {
 216                 adm5120_prom_type = ADM5120_PROM_CFE;
 217                 mips_machtype = detect_machtype_cfe();
 218                 return;
 219         }
 220
 221         if (myloader_present()) {
 222                 adm5120_prom_type = ADM5120_PROM_MYLOADER;
 223                 mips_machtype = detect_machtype_myloader();
 224                 return;
 225         }
 226
 227         if (routerboot_present()) {
 228                 adm5120_prom_type = ADM5120_PROM_ROUTERBOOT;
 229                 mips_machtype = detect_machtype_routerboot();
 230                 return;
 231         }
 232
 233         if (generic_prom_present()) {
 234                 adm5120_prom_type = ADM5120_PROM_GENERIC;
 235                 mips_machtype = detect_machtype_generic();
 236                 return;
 237         }
 238
 239         mips_machtype = MACH_ADM5120_GENERIC;
 240 }
 241
 242 /* TODO: this is an ugly hack for RouterBOARDS */
 243 extern char _image_cmdline;
 244 static void __init prom_init_cmdline(void)
 245 {
 246         char *cmd;
 247
 248         /* init command line, register a default kernel command line */
 249         cmd = &_image_cmdline + 8;
 250         if( strlen(cmd) > 0) strcpy( &(arcs_cmdline[0]), cmd);
 251                 else strcpy(&(arcs_cmdline[0]), CONFIG_CMDLINE);
 252
 253 }
 254
 255 #define UART_READ(r) *(volatile u32 *)(KSEG1ADDR(ADM5120_UART0_BASE)+(r))
 256 #define UART_WRITE(r,v) *(volatile u32 *)(KSEG1ADDR(ADM5120_UART0_BASE)+(r))=(v)
 257
 258 void __init prom_putchar(char ch)
 259 {
 260         while ((UART_READ(UART_REG_FLAG) & UART_FLAG_TXFE) == 0);
 261         UART_WRITE(UART_REG_DATA, ch);
 262         while ((UART_READ(UART_REG_FLAG) & UART_FLAG_TXFE) == 0);
 263 }
 264
 265 void __init prom_init(void)
 266 {
 267         mips_machgroup = MACH_GROUP_ADM5120;
 268         prom_detect_machtype();
 269
 270         prom_init_cmdline();
 271 }
 272
 273 void __init prom_free_prom_memory(void)
 274 {
 275         /* We do not have to prom memory to free */
 276 }