board/zeus/update.c

   1 /*
   2  * (C) Copyright 2007
   3  * Stefan Roese, DENX Software Engineering, sr@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <config.h>
   9 #include <common.h>
  10 #include <command.h>
  11 #include <asm/processor.h>
  12 #include <asm/io.h>
  13 #include <asm/ppc4xx-gpio.h>
  14 #include <i2c.h>
  15
  16 #if defined(CONFIG_ZEUS)
  17
  18 u8 buf_zeus_ce[] = {
  19 /*00    01    02    03    04    05    06    07 */
  20   0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  21 /*08    09    0a    0b    0c    0d    0e    0f */
  22   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  23 /*10    11    12    13    14    15    16    17 */
  24   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  25 /*18    19    1a    1b    1c    1d    1e    1f */
  26   0x00, 0xc0, 0x50, 0x12, 0x72, 0x3e, 0x00, 0x00 };
  27
  28 u8 buf_zeus_pe[] = {
  29
  30 /* CPU_CLOCK_DIV 1    = 00
  31    CPU_PLB_FREQ_DIV 3 = 10
  32    OPB_PLB_FREQ_DIV 2 = 01
  33    EBC_PLB_FREQ_DIV 2 = 00
  34    MAL_PLB_FREQ_DIV 1 = 00
  35    PCI_PLB_FRQ_DIV 3  = 10
  36    PLL_PLLOUTA        = IS SET
  37    PLL_OPERATING      = IS NOT SET
  38    PLL_FDB_MUL 10     = 1010
  39    PLL_FWD_DIV_A 3    = 101
  40    PLL_FWD_DIV_B 3    = 101
  41    TUNE               = 0x2be */
  42 /*00    01    02    03    04    05    06    07 */
  43   0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  44 /*08    09    0a    0b    0c    0d    0e    0f */
  45   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  46 /*10    11    12    13    14    15    16    17 */
  47   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  48 /*18    19    1a    1b    1c    1d    1e    1f */
  49   0x00, 0x60, 0x68, 0x2d, 0x42, 0xbe, 0x00, 0x00 };
  50
  51 static int update_boot_eeprom(void)
  52 {
  53         u32 len = 0x20;
  54         u8 chip = CONFIG_SYS_I2C_EEPROM_ADDR;
  55         u8 *pbuf;
  56         u8 base;
  57         int i;
  58
  59         if (in_be32((void *)GPIO0_IR) & GPIO_VAL(CONFIG_SYS_GPIO_ZEUS_PE)) {
  60                 pbuf = buf_zeus_pe;
  61                 base = 0x40;
  62         } else {
  63                 pbuf = buf_zeus_ce;
  64                 base = 0x00;
  65         }
  66
  67         for (i = 0; i < len; i++, base++) {
  68                 if (i2c_write(chip, base, 1, &pbuf[i], 1) != 0) {
  69                         printf("i2c_write fail\n");
  70                         return 1;
  71                 }
  72                 udelay(11000);
  73         }
  74
  75         return 0;
  76 }
  77
  78 int do_update_boot_eeprom(cmd_tbl_t* cmdtp, int flag, int argc, char * const argv[])
  79 {
  80         return update_boot_eeprom();
  81 }
  82
  83 U_BOOT_CMD (
  84         update_boot_eeprom, 1, 1, do_update_boot_eeprom,
  85         "update boot eeprom content",
  86         ""
  87 );
  88
  89 #endif