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

   1 /*
   2  *  ADM5120 specific prom routines
   3  *
   4  *  Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify it
   7  *  under the terms of the GNU General Public License version 2 as published
   8  *  by the Free Software Foundation.
   9  *
  10  */
  11
  12 #include <linux/init.h>
  13 #include <linux/kernel.h>
  14 #include <linux/string.h>
  15 #include <linux/mm.h>
  16 #include <linux/io.h>
  17
  18 #include <asm/addrspace.h>
  19 #include <asm/bootinfo.h>
  20 #include <asm/mips_machine.h>
  21
  22 #include <asm/mach-adm5120/adm5120_info.h>
  23 #include <asm/mach-adm5120/adm5120_defs.h>
  24 #include <asm/mach-adm5120/adm5120_uart.h>
  25
  26 #include <prom/cfe.h>
  27 #include <prom/generic.h>
  28 #include <prom/routerboot.h>
  29 #include <prom/myloader.h>
  30 #include <prom/zynos.h>
  31
  32 unsigned int adm5120_prom_type  = ADM5120_PROM_GENERIC;
  33
  34 struct board_desc {
  35         unsigned long   mach_type;
  36         char            *name;
  37 };
  38
  39 #define DEFBOARD(n, mt) { .mach_type = (mt), .name = (n)}
  40 static struct board_desc common_boards[] __initdata = {
  41         /* Cellvision/SparkLAN boards */
  42         DEFBOARD("CAS-630",     MACH_ADM5120_CAS630),
  43         DEFBOARD("CAS-670",     MACH_ADM5120_CAS670),
  44         DEFBOARD("CAS-700",     MACH_ADM5120_CAS700),
  45         DEFBOARD("CAS-771",     MACH_ADM5120_CAS771),
  46         DEFBOARD("CAS-790",     MACH_ADM5120_CAS790),
  47         DEFBOARD("CAS-861",     MACH_ADM5120_CAS861),
  48         DEFBOARD("NFS-101U",    MACH_ADM5120_NFS101U),
  49         /* Compex boards */
  50         DEFBOARD("WP54G-WRT",   MACH_ADM5120_WP54G_WRT),
  51         /* Edimax boards */
  52         DEFBOARD("BR-6104K",    MACH_ADM5120_BR6104K),
  53         DEFBOARD("BR-6104KP",   MACH_ADM5120_BR6104KP),
  54         DEFBOARD("BR-6104WG",   MACH_ADM5120_BR61X4WG),
  55         DEFBOARD("BR-6114WG",   MACH_ADM5120_BR61X4WG),
  56         /* Infineon boards */
  57         DEFBOARD("EASY 5120P-ATA",      MACH_ADM5120_EASY5120PATA),
  58         DEFBOARD("EASY 5120-RT",        MACH_ADM5120_EASY5120RT),
  59         DEFBOARD("EASY 5120-WVoIP",     MACH_ADM5120_EASY5120WVOIP),
  60         DEFBOARD("EASY 83000",          MACH_ADM5120_EASY83000),
  61         /* Mikrotik RouterBOARDs */
  62         DEFBOARD("111",         MACH_ADM5120_RB_11X),
  63         DEFBOARD("112",         MACH_ADM5120_RB_11X),
  64         DEFBOARD("133",         MACH_ADM5120_RB_133),
  65         DEFBOARD("133C",        MACH_ADM5120_RB_133C),
  66         DEFBOARD("133C3",       MACH_ADM5120_RB_133C),
  67         DEFBOARD("150",         MACH_ADM5120_RB_153), /* it's intentional */
  68         DEFBOARD("153",         MACH_ADM5120_RB_153),
  69         DEFBOARD("192",         MACH_ADM5120_RB_192),
  70         DEFBOARD("miniROUTER",  MACH_ADM5120_RB_150),
  71         /* OSBRiDGE boards */
  72         DEFBOARD("OSBRiDGE 5GXi",       MACH_ADM5120_5GXI),
  73         /* Motorola boards */
  74         DEFBOARD("Powerline MU Gateway",MACH_ADM5120_PMUGW),
  75 };
  76
  77 static unsigned long __init find_machtype_byname(char *name)
  78 {
  79         unsigned long ret;
  80         int i;
  81
  82         ret = MACH_ADM5120_GENERIC;
  83         if (name == NULL)
  84                 goto out;
  85
  86         if (*name == '\0')
  87                 goto out;
  88
  89         for (i = 0; i < ARRAY_SIZE(common_boards); i++) {
  90                 if (strcmp(common_boards[i].name, name) == 0) {
  91                         ret = common_boards[i].mach_type;
  92                         break;
  93                 }
  94         }
  95
  96 out:
  97         return ret;
  98 }
  99
 100 static unsigned long __init detect_machtype_routerboot(void)
 101 {
 102         char *name;
 103
 104         name = routerboot_get_boardname();
 105         return find_machtype_byname(name);
 106 }
 107
 108 static unsigned long __init detect_machtype_generic(void)
 109 {
 110         char *name;
 111
 112         name = generic_prom_getenv("board_name");
 113         return find_machtype_byname(name);
 114 }
 115
 116 unsigned long __init detect_machtype_cfe(void)
 117 {
 118         char *name;
 119
 120         name = cfe_getenv("BOARD_NAME");
 121         return find_machtype_byname(name);
 122 }
 123
 124 static struct {
 125         unsigned long   mach_type;
 126         u16             vendor_id;
 127         u16             board_id;
 128 } zynos_boards[] __initdata = {
 129 #define ZYNOS_BOARD(vi, bi, mt) \
 130         {.vendor_id = (vi), .board_id = (bi), .mach_type = (mt)}
 131
 132 #define ZYXEL_BOARD(bi, mt) ZYNOS_BOARD(ZYNOS_VENDOR_ID_ZYXEL, bi, mt)
 133 #define DLINK_BOARD(bi, mt) ZYNOS_BOARD(ZYNOS_VENDOR_ID_DLINK, bi, mt)
 134 #define LUCENT_BOARD(bi, mt) ZYNOS_BOARD(ZYNOS_VENDOR_ID_LUCENT, bi, mt)
 135         ZYXEL_BOARD(ZYNOS_BOARD_HS100,  MACH_ADM5120_HS100),
 136         ZYXEL_BOARD(ZYNOS_BOARD_P334U,  MACH_ADM5120_P334U),
 137         ZYXEL_BOARD(ZYNOS_BOARD_P334W,  MACH_ADM5120_P334W),
 138         ZYXEL_BOARD(ZYNOS_BOARD_P334WH, MACH_ADM5120_P334WH),
 139         ZYXEL_BOARD(ZYNOS_BOARD_P334WHD, MACH_ADM5120_P334WHD),
 140         ZYXEL_BOARD(ZYNOS_BOARD_P334WT, MACH_ADM5120_P334WT),
 141         ZYXEL_BOARD(ZYNOS_BOARD_P334WT_ALT,     MACH_ADM5120_P334WT),
 142         ZYXEL_BOARD(ZYNOS_BOARD_P335,   MACH_ADM5120_P335),
 143         ZYXEL_BOARD(ZYNOS_BOARD_P335PLUS, MACH_ADM5120_P335PLUS),
 144         ZYXEL_BOARD(ZYNOS_BOARD_P335U,  MACH_ADM5120_P335U)
 145 };
 146
 147 static unsigned long __init detect_machtype_bootbase(void)
 148 {
 149         int i;
 150
 151         for (i = 0; i < ARRAY_SIZE(zynos_boards); i++) {
 152                 if (zynos_boards[i].vendor_id == bootbase_info.vendor_id &&
 153                         zynos_boards[i].board_id == bootbase_info.board_id) {
 154                         return zynos_boards[i].mach_type;
 155                         break;
 156                 }
 157         }
 158
 159         printk(KERN_WARNING "Unknown ZyXEL model (%u)\n",
 160                                 bootbase_info.board_id);
 161         return MACH_ADM5120_GENERIC;
 162 }
 163
 164 static struct {
 165         unsigned long   mach_type;
 166         u16     vid;
 167         u16     did;
 168         u16     svid;
 169         u16     sdid;
 170 } mylo_boards[]  __initdata = {
 171 #define MYLO_BOARD(v, d, sv, sd, mt) \
 172         {.vid = (v), .did = (d), .svid = (sv), .sdid = (sd), .mach_type = (mt)}
 173 #define COMPEX_BOARD(d, mt) \
 174         MYLO_BOARD(VENID_COMPEX, (d), VENID_COMPEX, (d), (mt))
 175
 176         COMPEX_BOARD(DEVID_COMPEX_NP27G, MACH_ADM5120_NP27G),
 177         COMPEX_BOARD(DEVID_COMPEX_NP28G, MACH_ADM5120_NP28G),
 178         COMPEX_BOARD(DEVID_COMPEX_NP28GHS, MACH_ADM5120_NP28GHS),
 179         COMPEX_BOARD(DEVID_COMPEX_WP54G, MACH_ADM5120_WP54),
 180         COMPEX_BOARD(DEVID_COMPEX_WP54Gv1C, MACH_ADM5120_WP54Gv1C),
 181         COMPEX_BOARD(DEVID_COMPEX_WP54AG, MACH_ADM5120_WP54),
 182         COMPEX_BOARD(DEVID_COMPEX_WPP54G, MACH_ADM5120_WP54),
 183         COMPEX_BOARD(DEVID_COMPEX_WPP54AG, MACH_ADM5120_WP54),
 184 };
 185
 186 static unsigned long __init detect_machtype_myloader(void)
 187 {
 188         unsigned long ret;
 189         int i;
 190
 191         ret = MACH_ADM5120_GENERIC;
 192         for (i = 0; i < ARRAY_SIZE(mylo_boards); i++) {
 193                 if (mylo_boards[i].vid == myloader_info.vid &&
 194                         mylo_boards[i].did == myloader_info.did &&
 195                         mylo_boards[i].svid == myloader_info.svid &&
 196                         mylo_boards[i].sdid == myloader_info.sdid) {
 197                         ret = mylo_boards[i].mach_type;
 198                         break;
 199                 }
 200         }
 201
 202         return ret;
 203 }
 204
 205 static void __init prom_detect_machtype(void)
 206 {
 207         if (bootbase_present()) {
 208                 adm5120_prom_type = ADM5120_PROM_BOOTBASE;
 209                 adm5120_mach_type = detect_machtype_bootbase();
 210                 return;
 211         }
 212
 213         if (cfe_present()) {
 214                 adm5120_prom_type = ADM5120_PROM_CFE;
 215                 adm5120_mach_type = detect_machtype_cfe();
 216                 return;
 217         }
 218
 219         if (myloader_present()) {
 220                 adm5120_prom_type = ADM5120_PROM_MYLOADER;
 221                 adm5120_mach_type = detect_machtype_myloader();
 222                 return;
 223         }
 224
 225         if (routerboot_present()) {
 226                 adm5120_prom_type = ADM5120_PROM_ROUTERBOOT;
 227                 adm5120_mach_type = detect_machtype_routerboot();
 228                 return;
 229         }
 230
 231         if (generic_prom_present()) {
 232                 adm5120_prom_type = ADM5120_PROM_GENERIC;
 233                 adm5120_mach_type = detect_machtype_generic();
 234                 return;
 235         }
 236
 237         adm5120_mach_type = MACH_ADM5120_GENERIC;
 238 }
 239
 240 /* TODO: this is an ugly hack for RouterBOARDS */
 241 extern char _image_cmdline;
 242 static void __init prom_init_cmdline(void)
 243 {
 244         char *cmd;
 245
 246         /* init command line, register a default kernel command line */
 247         cmd = &_image_cmdline + 8;
 248         if (strlen(cmd) > 0)
 249                 strlcpy(arcs_cmdline, cmd, sizeof(arcs_cmdline));
 250
 251 }
 252
 253 #define UART_READ(r) \
 254         __raw_readl((void __iomem *)(KSEG1ADDR(ADM5120_UART0_BASE)+(r)))
 255 #define UART_WRITE(r, v) \
 256         __raw_writel((v), (void __iomem *)(KSEG1ADDR(ADM5120_UART0_BASE)+(r)))
 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         prom_detect_machtype();
 268         prom_init_cmdline();
 269 }
 270
 271 void __init prom_free_prom_memory(void)
 272 {
 273         /* We do not have to prom memory to free */
 274 }