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/io.h>
  32 #include <asm/bootinfo.h>
  33 #include <asm/addrspace.h>
  34
  35 #include <adm5120_info.h>
  36 #include <adm5120_defs.h>
  37 #include <adm5120_uart.h>
  38
  39 #include <prom/cfe.h>
  40 #include <prom/generic.h>
  41 #include <prom/routerboot.h>
  42 #include <prom/myloader.h>
  43 #include <prom/zynos.h>
  44
  45 unsigned int adm5120_prom_type  = ADM5120_PROM_GENERIC;
  46
  47 struct board_desc {
  48         unsigned long   mach_type;
  49         char            *name;
  50 };
  51
  52 #define DEFBOARD(n, mt) { .mach_type = (mt), .name = (n)}
  53 static struct board_desc common_boards[] __initdata = {
  54         /* Cellvision/SparkLAN boards */
  55         DEFBOARD("CAS-630",             MACH_ADM5120_CAS630),
  56         DEFBOARD("CAS-670",             MACH_ADM5120_CAS670),
  57         DEFBOARD("CAS-771",             MACH_ADM5120_CAS771),
  58         DEFBOARD("CAS-790",             MACH_ADM5120_CAS790),
  59         DEFBOARD("CAS-861",             MACH_ADM5120_CAS861),
  60         /* Compex boards */
  61         DEFBOARD("WP54G-WRT",           MACH_ADM5120_WP54G_WRT),
  62         /* Edimax boards */
  63         DEFBOARD("BR-6104K",            MACH_ADM5120_BR6104K),
  64         DEFBOARD("BR-6104KP",           MACH_ADM5120_BR6104K),
  65         /* Infineon boards */
  66         DEFBOARD("EASY 5120P-ATA",      MACH_ADM5120_EASY5120PATA),
  67         DEFBOARD("EASY 5120-RT",        MACH_ADM5120_EASY5120RT),
  68         DEFBOARD("EASY 5120-WVoIP",     MACH_ADM5120_EASY5120WVOIP),
  69         DEFBOARD("EASY 83000",          MACH_ADM5120_EASY83000),
  70         /* Mikrotik RouterBOARDs */
  71         DEFBOARD("111",                 MACH_ADM5120_RB_111),
  72         DEFBOARD("112",                 MACH_ADM5120_RB_112),
  73         DEFBOARD("133",                 MACH_ADM5120_RB_133),
  74         DEFBOARD("133C",                MACH_ADM5120_RB_133C),
  75         DEFBOARD("133C3",               MACH_ADM5120_RB_133C),
  76         DEFBOARD("150",                 MACH_ADM5120_RB_153), /* it's intentional */
  77         DEFBOARD("153",                 MACH_ADM5120_RB_153),
  78         DEFBOARD("192",                 MACH_ADM5120_RB_192),
  79         DEFBOARD("miniROUTER",          MACH_ADM5120_RB_150),
  80 };
  81
  82 static unsigned long __init find_machtype_byname(char *name)
  83 {
  84         unsigned long ret;
  85         int i;
  86
  87         ret = MACH_ADM5120_GENERIC;
  88         if (name == NULL)
  89                 goto out;
  90
  91         if (*name == '\0')
  92                 goto out;
  93
  94         for (i=0; i<ARRAY_SIZE(common_boards); i++) {
  95                 if (strcmp(common_boards[i].name, name) == 0) {
  96                         ret = common_boards[i].mach_type;
  97                         break;
  98                 }
  99         }
 100
 101 out:
 102         return ret;
 103 }
 104
 105 static unsigned long __init detect_machtype_routerboot(void)
 106 {
 107         char *name;
 108
 109         name = routerboot_get_boardname();
 110         return find_machtype_byname(name);
 111 }
 112
 113 static unsigned long __init detect_machtype_generic(void)
 114 {
 115         char *name;
 116
 117         name = generic_prom_getenv("board_name");
 118         return find_machtype_byname(name);
 119 }
 120
 121 unsigned long __init detect_machtype_cfe(void)
 122 {
 123         char *name;
 124
 125         name = cfe_getenv("BOARD_NAME");
 126         return find_machtype_byname(name);
 127 }
 128
 129 static struct {
 130         unsigned long   mach_type;
 131         u16             vendor_id;
 132         u16             board_id;
 133 } zynos_boards[] __initdata = {
 134 #define ZYNOS_BOARD(vi, bi, mt) { .vendor_id = (vi), .board_id = (bi), \
 135                 .mach_type = (mt) }
 136
 137 #define ZYXEL_BOARD(bi, mt) ZYNOS_BOARD(ZYNOS_VENDOR_ID_ZYXEL, bi, mt)
 138 #define DLINK_BOARD(bi, mt) ZYNOS_BOARD(ZYNOS_VENDOR_ID_DLINK, bi, mt)
 139 #define LUCENT_BOARD(bi, mt) ZYNOS_BOARD(ZYNOS_VENDOR_ID_LUCENT, bi, mt)
 140         ZYXEL_BOARD(ZYNOS_BOARD_HS100,  MACH_ADM5120_HS100),
 141         ZYXEL_BOARD(ZYNOS_BOARD_P334,   MACH_ADM5120_P334),
 142         ZYXEL_BOARD(ZYNOS_BOARD_P334U,  MACH_ADM5120_P334U),
 143         ZYXEL_BOARD(ZYNOS_BOARD_P334W,  MACH_ADM5120_P334W),
 144         ZYXEL_BOARD(ZYNOS_BOARD_P334WH, MACH_ADM5120_P334WH),
 145         ZYXEL_BOARD(ZYNOS_BOARD_P334WHD, MACH_ADM5120_P334WHD),
 146         ZYXEL_BOARD(ZYNOS_BOARD_P334WT, MACH_ADM5120_P334WT),
 147         ZYXEL_BOARD(ZYNOS_BOARD_P335,   MACH_ADM5120_P335),
 148         ZYXEL_BOARD(ZYNOS_BOARD_P335PLUS, MACH_ADM5120_P335PLUS),
 149         ZYXEL_BOARD(ZYNOS_BOARD_P335U,  MACH_ADM5120_P335U)
 150 };
 151
 152 static unsigned long __init detect_machtype_bootbase(void)
 153 {
 154         unsigned long ret;
 155         int i;
 156
 157         ret = MACH_ADM5120_GENERIC;
 158         for (i=0; i<ARRAY_SIZE(zynos_boards); i++) {
 159                 if (zynos_boards[i].vendor_id == bootbase_info.vendor_id &&
 160                         zynos_boards[i].board_id == bootbase_info.board_id) {
 161                         ret = zynos_boards[i].mach_type;
 162                         break;
 163                 }
 164         }
 165
 166         return ret;
 167 }
 168
 169 static struct {
 170         unsigned long   mach_type;
 171         u16     vid;
 172         u16     did;
 173         u16     svid;
 174         u16     sdid;
 175 } mylo_boards[]  __initdata = {
 176 #define MYLO_BOARD(v,d,sv,sd,mt) { .vid = (v), .did = (d), .svid = (sv), \
 177         .sdid = (sd), .mach_type = (mt) }
 178 #define COMPEX_BOARD(d,mt) MYLO_BOARD(VENID_COMPEX,(d),VENID_COMPEX,(d),(mt))
 179
 180         COMPEX_BOARD(DEVID_COMPEX_NP27G, MACH_ADM5120_NP27G),
 181         COMPEX_BOARD(DEVID_COMPEX_NP28G, MACH_ADM5120_NP28G),
 182         COMPEX_BOARD(DEVID_COMPEX_NP28GHS, MACH_ADM5120_NP28GHS),
 183         COMPEX_BOARD(DEVID_COMPEX_WP54G, MACH_ADM5120_WP54G),
 184         COMPEX_BOARD(DEVID_COMPEX_WP54Gv1C, MACH_ADM5120_WP54Gv1C),
 185         COMPEX_BOARD(DEVID_COMPEX_WP54AG, MACH_ADM5120_WP54AG),
 186         COMPEX_BOARD(DEVID_COMPEX_WPP54G, MACH_ADM5120_WPP54G),
 187         COMPEX_BOARD(DEVID_COMPEX_WPP54AG, MACH_ADM5120_WPP54AG),
 188 };
 189
 190 static unsigned long __init detect_machtype_myloader(void)
 191 {
 192         unsigned long ret;
 193         int i;
 194
 195         ret = MACH_ADM5120_GENERIC;
 196         for (i=0; i<ARRAY_SIZE(mylo_boards); i++) {
 197                 if (mylo_boards[i].vid == myloader_info.vid &&
 198                         mylo_boards[i].did == myloader_info.did &&
 199                         mylo_boards[i].svid == myloader_info.svid &&
 200                         mylo_boards[i].sdid == myloader_info.sdid) {
 201                         ret = mylo_boards[i].mach_type;
 202                         break;
 203                 }
 204         }
 205
 206         return ret;
 207 }
 208
 209 static void __init prom_detect_machtype(void)
 210 {
 211         if (bootbase_present()) {
 212                 adm5120_prom_type = ADM5120_PROM_BOOTBASE;
 213                 mips_machtype = detect_machtype_bootbase();
 214                 return;
 215         }
 216
 217         if (cfe_present()) {
 218                 adm5120_prom_type = ADM5120_PROM_CFE;
 219                 mips_machtype = detect_machtype_cfe();
 220                 return;
 221         }
 222
 223         if (myloader_present()) {
 224                 adm5120_prom_type = ADM5120_PROM_MYLOADER;
 225                 mips_machtype = detect_machtype_myloader();
 226                 return;
 227         }
 228
 229         if (routerboot_present()) {
 230                 adm5120_prom_type = ADM5120_PROM_ROUTERBOOT;
 231                 mips_machtype = detect_machtype_routerboot();
 232                 return;
 233         }
 234
 235         if (generic_prom_present()) {
 236                 adm5120_prom_type = ADM5120_PROM_GENERIC;
 237                 mips_machtype = detect_machtype_generic();
 238                 return;
 239         }
 240
 241         mips_machtype = MACH_ADM5120_GENERIC;
 242 }
 243
 244 /* TODO: this is an ugly hack for RouterBOARDS */
 245 extern char _image_cmdline;
 246 static void __init prom_init_cmdline(void)
 247 {
 248         char *cmd;
 249
 250         /* init command line, register a default kernel command line */
 251         cmd = &_image_cmdline + 8;
 252         if( strlen(cmd) > 0) strcpy( &(arcs_cmdline[0]), cmd);
 253                 else strcpy(&(arcs_cmdline[0]), CONFIG_CMDLINE);
 254
 255 }
 256
 257 #define UART_READ(r) \
 258         __raw_readl((void __iomem *)(KSEG1ADDR(ADM5120_UART0_BASE)+(r)))
 259 #define UART_WRITE(r, v) \
 260         __raw_writel((v), (void __iomem *)(KSEG1ADDR(ADM5120_UART0_BASE)+(r)))
 261
 262 void __init prom_putchar(char ch)
 263 {
 264         while ((UART_READ(UART_REG_FLAG) & UART_FLAG_TXFE) == 0);
 265         UART_WRITE(UART_REG_DATA, ch);
 266         while ((UART_READ(UART_REG_FLAG) & UART_FLAG_TXFE) == 0);
 267 }
 268
 269 void __init prom_init(void)
 270 {
 271         mips_machgroup = MACH_GROUP_ADM5120;
 272         prom_detect_machtype();
 273
 274         prom_init_cmdline();
 275 }
 276
 277 void __init prom_free_prom_memory(void)
 278 {
 279         /* We do not have to prom memory to free */
 280 }