board/eltec/elppc/srom.h

   1 /*
   2  * (C) Copyright 2002 ELTEC Elektronik AG
   3  * Frank Gottschling <fgottschling@eltec.de>
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 /* common srom defs */
  25 #define FIRST_DEVICE            0x00
  26 #define SECOND_DEVICE           0x04
  27 #define FIRST_BLOCK             0x00
  28 #define SECOND_BLOCK            0x02
  29 #define BLOCK_SIZE              0x100
  30 #define ERROR                   (-1)
  31
  32 #define CLK2P0TO1_1MB_PB_0P5DH  0x79000100
  33 #define CLK2P5TO1_1MB_PB_0P5DH  0x7B000100
  34
  35 #define CPU_TYPE_740            0x08
  36 #define CPU_TYPE_750            0x08
  37 #define CPU_TYPE                ((get_pvr()>>16)&0xffff)
  38
  39 #define ABS(x)                  ((x<0)?-x:x)
  40 #define SROM_SHORT(pX)          (*(u8 *)(pX) | *((u8 *)(pX)+1) << 8)
  41
  42 /* bab7xx ELTEC srom */
  43 #define I2C_BUS_DAT             (CONFIG_SYS_ISA_IO + 0x220)
  44 #define I2C_BUS_DIR             (CONFIG_SYS_ISA_IO + 0x221)
  45
  46 /* srom at mpc107 */
  47 #define MPC107_I2CADDR          (mpc107_eumb_addr + 0x3000)     /* address      */
  48 #define MPC107_I2CFDR           (mpc107_eumb_addr + 0x3004)     /* freq divider */
  49 #define MPC107_I2CCR            (mpc107_eumb_addr + 0x3008)     /* control      */
  50 #define MPC107_I2CSR            (mpc107_eumb_addr + 0x300c)     /* status       */
  51 #define MPC107_I2CDR            (mpc107_eumb_addr + 0x3010)     /* data         */
  52 #define MPC107_I2C_TIMEOUT      10000000
  53
  54 /* i82559 */
  55 #define EE_ADDR_BITS            6
  56 #define EE_SIZE                 0x40                            /* 0x40 words */
  57 #define EE_CHECKSUM             0xBABA
  58
  59 /* dc21143 */
  60 #define DEC_SROM_SIZE           128
  61
  62
  63 /*
  64  * structure of revision srom
  65  */
  66 typedef struct  {
  67     char    magic[8];           /* 000 - Magic number */
  68     char    revrev[2];          /* 008 - Revision of structure */
  69     unsigned short size;        /* 00A - Size of CRC area */
  70     unsigned long  crc;         /* 00C - CRC */
  71     char    board[16];          /* 010 - Board Revision information */
  72     char    option[4][16];      /* 020 - Option Revision information */
  73     char    serial[8];          /* 060 - Board serial number */
  74     char    etheraddr[6];       /* 068 - Ethernet node addresse */
  75     char    reserved[2];        /* 06E - Reserved */
  76     char    revision[7][2];     /* 070 - Revision codes */
  77     char    category[2];        /* 07E - Category codes */
  78     char    text[64];           /* 080 - Text field */
  79     char    res[64];            /* 0C0 - Reserved */
  80 } revinfo;
  81
  82 unsigned long el_srom_checksum (unsigned char *ptr, unsigned long size);
  83 int el_srom_load  (unsigned char addr, unsigned char *buf, int cnt,
  84                    unsigned char device, unsigned char block);
  85 int el_srom_store (unsigned char addr, unsigned char *buf, int cnt,
  86                    unsigned char device, unsigned char block);
  87
  88 int mpc107_i2c_init (unsigned long eumb_addr, unsigned long divider);
  89 int mpc107_i2c_read_byte (unsigned char device, unsigned char block, unsigned char offset);
  90 int mpc107_i2c_write_byte (unsigned char device, unsigned char block,
  91                            unsigned char offset, unsigned char val);
  92 int mpc107_srom_load (unsigned char addr, unsigned char *pBuf, int cnt,
  93                       unsigned char device, unsigned char block);
  94 int mpc107_srom_store (unsigned char addr, unsigned char *pBuf, int cnt,
  95                        unsigned char device, unsigned char block);
  96
  97 int dc_srom_load (unsigned short *dest);
  98 int dc_srom_store (unsigned short *src);
  99
 100 unsigned short eepro100_srom_checksum (unsigned short *sromdata);
 101 void eepro100_srom_load (unsigned short *destination);
 102 int  eepro100_srom_store (unsigned short *source);