board/eltec/elppc/srom.h

   1 /*
   2  * (C) Copyright 2002 ELTEC Elektronik AG
   3  * Frank Gottschling <fgottschling@eltec.de>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 /* common srom defs */
   9 #define FIRST_DEVICE            0x00
  10 #define SECOND_DEVICE           0x04
  11 #define FIRST_BLOCK             0x00
  12 #define SECOND_BLOCK            0x02
  13 #define BLOCK_SIZE              0x100
  14 #define ERROR                   (-1)
  15
  16 #define CLK2P0TO1_1MB_PB_0P5DH  0x79000100
  17 #define CLK2P5TO1_1MB_PB_0P5DH  0x7B000100
  18
  19 #define CPU_TYPE_740            0x08
  20 #define CPU_TYPE_750            0x08
  21 #define CPU_TYPE                ((get_pvr()>>16)&0xffff)
  22
  23 #define ABS(x)                  ((x<0)?-x:x)
  24 #define SROM_SHORT(pX)          (*(u8 *)(pX) | *((u8 *)(pX)+1) << 8)
  25
  26 /* bab7xx ELTEC srom */
  27 #define I2C_BUS_DAT             (CONFIG_SYS_ISA_IO + 0x220)
  28 #define I2C_BUS_DIR             (CONFIG_SYS_ISA_IO + 0x221)
  29
  30 /* srom at mpc107 */
  31 #define MPC107_I2CADDR          (mpc107_eumb_addr + 0x3000)     /* address      */
  32 #define MPC107_I2CFDR           (mpc107_eumb_addr + 0x3004)     /* freq divider */
  33 #define MPC107_I2CCR            (mpc107_eumb_addr + 0x3008)     /* control      */
  34 #define MPC107_I2CSR            (mpc107_eumb_addr + 0x300c)     /* status       */
  35 #define MPC107_I2CDR            (mpc107_eumb_addr + 0x3010)     /* data         */
  36 #define MPC107_I2C_TIMEOUT      10000000
  37
  38 /* i82559 */
  39 #define EE_ADDR_BITS            6
  40 #define EE_SIZE                 0x40                            /* 0x40 words */
  41 #define EE_CHECKSUM             0xBABA
  42
  43 /* dc21143 */
  44 #define DEC_SROM_SIZE           128
  45
  46
  47 /*
  48  * structure of revision srom
  49  */
  50 typedef struct  {
  51     char    magic[8];           /* 000 - Magic number */
  52     char    revrev[2];          /* 008 - Revision of structure */
  53     unsigned short size;        /* 00A - Size of CRC area */
  54     unsigned long  crc;         /* 00C - CRC */
  55     char    board[16];          /* 010 - Board Revision information */
  56     char    option[4][16];      /* 020 - Option Revision information */
  57     char    serial[8];          /* 060 - Board serial number */
  58     char    etheraddr[6];       /* 068 - Ethernet node addresse */
  59     char    reserved[2];        /* 06E - Reserved */
  60     char    revision[7][2];     /* 070 - Revision codes */
  61     char    category[2];        /* 07E - Category codes */
  62     char    text[64];           /* 080 - Text field */
  63     char    res[64];            /* 0C0 - Reserved */
  64 } revinfo;
  65
  66 unsigned long el_srom_checksum (unsigned char *ptr, unsigned long size);
  67 int el_srom_load  (unsigned char addr, unsigned char *buf, int cnt,
  68                    unsigned char device, unsigned char block);
  69 int el_srom_store (unsigned char addr, unsigned char *buf, int cnt,
  70                    unsigned char device, unsigned char block);
  71
  72 int mpc107_i2c_init (unsigned long eumb_addr, unsigned long divider);
  73 int mpc107_i2c_read_byte (unsigned char device, unsigned char block, unsigned char offset);
  74 int mpc107_i2c_write_byte (unsigned char device, unsigned char block,
  75                            unsigned char offset, unsigned char val);
  76 int mpc107_srom_load (unsigned char addr, unsigned char *pBuf, int cnt,
  77                       unsigned char device, unsigned char block);
  78 int mpc107_srom_store (unsigned char addr, unsigned char *pBuf, int cnt,
  79                        unsigned char device, unsigned char block);
  80
  81 int dc_srom_load (unsigned short *dest);
  82 int dc_srom_store (unsigned short *src);
  83
  84 unsigned short eepro100_srom_checksum (unsigned short *sromdata);
  85 void eepro100_srom_load (unsigned short *destination);
  86 int  eepro100_srom_store (unsigned short *source);