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("miniROUTER",          MACH_ADM5120_RB_150),
  79 };
  80
  81 static unsigned long __init find_machtype_byname(char *name)
  82 {
  83         unsigned long ret;
  84         int i;
  85
  86         ret = MACH_ADM5120_GENERIC;
  87         if (name == NULL)
  88                 goto out;
  89
  90         if (*name == '\0')
  91                 goto out;
  92
  93         for (i=0; i<ARRAY_SIZE(common_boards); i++) {
  94                 if (strcmp(common_boards[i].name, name) == 0) {
  95                         ret = common_boards[i].mach_type;
  96                         break;
  97                 }
  98         }
  99
 100 out:
 101         return ret;
 102 }
 103
 104 static unsigned long __init detect_machtype_routerboot(void)
 105 {
 106         char *name;
 107
 108         name = routerboot_get_boardname();
 109         return find_machtype_byname(name);
 110 }
 111
 112 static unsigned long __init detect_machtype_generic(void)
 113 {
 114         char *name;
 115
 116         name = generic_prom_getenv("board_name");
 117         return find_machtype_byname(name);
 118 }
 119
 120 unsigned long __init detect_machtype_cfe(void)
 121 {
 122         char *name;
 123
 124         name = cfe_getenv("BOARD_NAME");
 125         return find_machtype_byname(name);
 126 }
 127
 128 static struct {
 129         unsigned long   mach_type;
 130         u16             vendor_id;
 131         u16             board_id;
 132 } zynos_boards[] __initdata = {
 133 #define ZYNOS_BOARD(vi, bi, mt) { .vendor_id = (vi), .board_id = (bi), \
 134                 .mach_type = (mt) }
 135
 136 #define ZYXEL_BOARD(bi, mt) ZYNOS_BOARD(ZYNOS_VENDOR_ID_ZYXEL, bi, mt)
 137 #define DLINK_BOARD(bi, mt) ZYNOS_BOARD(ZYNOS_VENDOR_ID_DLINK, bi, mt)
 138 #define LUCENT_BOARD(bi, mt) ZYNOS_BOARD(ZYNOS_VENDOR_ID_LUCENT, bi, mt)
 139         ZYXEL_BOARD(ZYNOS_BOARD_HS100,  MACH_ADM5120_HS100),
 140         ZYXEL_BOARD(ZYNOS_BOARD_P334,   MACH_ADM5120_P334),
 141         ZYXEL_BOARD(ZYNOS_BOARD_P334U,  MACH_ADM5120_P334U),
 142         ZYXEL_BOARD(ZYNOS_BOARD_P334W,  MACH_ADM5120_P334W),
 143         ZYXEL_BOARD(ZYNOS_BOARD_P334WH, MACH_ADM5120_P334WH),
 144         ZYXEL_BOARD(ZYNOS_BOARD_P334WHD, MACH_ADM5120_P334WHD),
 145         ZYXEL_BOARD(ZYNOS_BOARD_P334WT, MACH_ADM5120_P334WT),
 146         ZYXEL_BOARD(ZYNOS_BOARD_P335,   MACH_ADM5120_P335),
 147         ZYXEL_BOARD(ZYNOS_BOARD_P335PLUS, MACH_ADM5120_P335PLUS),
 148         ZYXEL_BOARD(ZYNOS_BOARD_P335U,  MACH_ADM5120_P335U)
 149 };
 150
 151 static unsigned long __init detect_machtype_bootbase(void)
 152 {
 153         unsigned long ret;
 154         int i;
 155
 156         ret = MACH_ADM5120_GENERIC;
 157         for (i=0; i<ARRAY_SIZE(zynos_boards); i++) {
 158                 if (zynos_boards[i].vendor_id == bootbase_info.vendor_id &&
 159                         zynos_boards[i].board_id == bootbase_info.board_id) {
 160                         ret = zynos_boards[i].mach_type;
 161                         break;
 162                 }
 163         }
 164
 165         return ret;
 166 }
 167
 168 static struct {
 169         unsigned long   mach_type;
 170         u16     vid;
 171         u16     did;
 172         u16     svid;
 173         u16     sdid;
 174 } mylo_boards[]  __initdata = {
 175 #define MYLO_BOARD(v,d,sv,sd,mt) { .vid = (v), .did = (d), .svid = (sv), \
 176         .sdid = (sd), .mach_type = (mt) }
 177 #define COMPEX_BOARD(d,mt) MYLO_BOARD(VENID_COMPEX,(d),VENID_COMPEX,(d),(mt))
 178
 179         COMPEX_BOARD(DEVID_COMPEX_NP27G, MACH_ADM5120_NP27G),
 180         COMPEX_BOARD(DEVID_COMPEX_NP28G, MACH_ADM5120_NP28G),
 181         COMPEX_BOARD(DEVID_COMPEX_NP28GHS, MACH_ADM5120_NP28GHS),
 182         COMPEX_BOARD(DEVID_COMPEX_WP54G, MACH_ADM5120_WP54G),
 183         COMPEX_BOARD(DEVID_COMPEX_WP54Gv1C, MACH_ADM5120_WP54Gv1C),
 184         COMPEX_BOARD(DEVID_COMPEX_WP54AG, MACH_ADM5120_WP54AG),
 185         COMPEX_BOARD(DEVID_COMPEX_WPP54G, MACH_ADM5120_WPP54G),
 186         COMPEX_BOARD(DEVID_COMPEX_WPP54AG, MACH_ADM5120_WPP54AG),
 187 };
 188
 189 static unsigned long __init detect_machtype_myloader(void)
 190 {
 191         unsigned long ret;
 192         int i;
 193
 194         ret = MACH_ADM5120_GENERIC;
 195         for (i=0; i<ARRAY_SIZE(mylo_boards); i++) {
 196                 if (mylo_boards[i].vid == myloader_info.vid &&
 197                         mylo_boards[i].did == myloader_info.did &&
 198                         mylo_boards[i].svid == myloader_info.svid &&
 199                         mylo_boards[i].sdid == myloader_info.sdid) {
 200                         ret = mylo_boards[i].mach_type;
 201                         break;
 202                 }
 203         }
 204
 205         return ret;
 206 }
 207
 208 static void __init prom_detect_machtype(void)
 209 {
 210         if (bootbase_present()) {
 211                 adm5120_prom_type = ADM5120_PROM_BOOTBASE;
 212                 mips_machtype = detect_machtype_bootbase();
 213                 return;
 214         }
 215
 216         if (cfe_present()) {
 217                 adm5120_prom_type = ADM5120_PROM_CFE;
 218                 mips_machtype = detect_machtype_cfe();
 219                 return;
 220         }
 221
 222         if (myloader_present()) {
 223                 adm5120_prom_type = ADM5120_PROM_MYLOADER;
 224                 mips_machtype = detect_machtype_myloader();
 225                 return;
 226         }
 227
 228         if (routerboot_present()) {
 229                 adm5120_prom_type = ADM5120_PROM_ROUTERBOOT;
 230                 mips_machtype = detect_machtype_routerboot();
 231                 return;
 232         }
 233
 234         if (generic_prom_present()) {
 235                 adm5120_prom_type = ADM5120_PROM_GENERIC;
 236                 mips_machtype = detect_machtype_generic();
 237                 return;
 238         }
 239
 240         mips_machtype = MACH_ADM5120_GENERIC;
 241 }
 242
 243 /* TODO: this is an ugly hack for RouterBOARDS */
 244 extern char _image_cmdline;
 245 static void __init prom_init_cmdline(void)
 246 {
 247         char *cmd;
 248
 249         /* init command line, register a default kernel command line */
 250         cmd = &_image_cmdline + 8;
 251         if( strlen(cmd) > 0) strcpy( &(arcs_cmdline[0]), cmd);
 252                 else strcpy(&(arcs_cmdline[0]), CONFIG_CMDLINE);
 253
 254 }
 255
 256 #define UART_READ(r) \
 257         __raw_readl((void __iomem *)(KSEG1ADDR(ADM5120_UART0_BASE)+(r)))
 258 #define UART_WRITE(r, v) \
 259         __raw_writel((v), (void __iomem *)(KSEG1ADDR(ADM5120_UART0_BASE)+(r)))
 260
 261 void __init prom_putchar(char ch)
 262 {
 263         while ((UART_READ(UART_REG_FLAG) & UART_FLAG_TXFE) == 0);
 264         UART_WRITE(UART_REG_DATA, ch);
 265         while ((UART_READ(UART_REG_FLAG) & UART_FLAG_TXFE) == 0);
 266 }
 267
 268 void __init prom_init(void)
 269 {
 270         mips_machgroup = MACH_GROUP_ADM5120;
 271         prom_detect_machtype();
 272
 273         prom_init_cmdline();
 274 }
 275
 276 void __init prom_free_prom_memory(void)
 277 {
 278         /* We do not have to prom memory to free */
 279 }