board/amcc/bubinga/bubinga.c

   1 /*
   2  * (C) Copyright 2000-2005
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <asm/processor.h>
  10 #include <asm/io.h>
  11
  12 DECLARE_GLOBAL_DATA_PTR;
  13
  14 long int spd_sdram(void);
  15
  16 int board_early_init_f(void)
  17 {
  18         mtdcr(UIC0SR, 0xFFFFFFFF);      /* clear all ints */
  19         mtdcr(UIC0ER, 0x00000000);      /* disable all ints */
  20         mtdcr(UIC0CR, 0x00000010);
  21         mtdcr(UIC0PR, 0xFFFF7FF0);      /* set int polarities */
  22         mtdcr(UIC0TR, 0x00000010);      /* set int trigger levels */
  23         mtdcr(UIC0SR, 0xFFFFFFFF);      /* clear all ints */
  24
  25         /*
  26          * Configure CPC0_PCI to enable PerWE as output
  27          * and enable the internal PCI arbiter if selected
  28          */
  29         if (in_8((void *)FPGA_REG1) & FPGA_REG1_PCI_INT_ARB)
  30                 mtdcr(CPC0_PCI, CPC0_PCI_HOST_CFG_EN | CPC0_PCI_ARBIT_EN);
  31         else
  32                 mtdcr(CPC0_PCI, CPC0_PCI_HOST_CFG_EN);
  33
  34         return 0;
  35 }
  36
  37 /*
  38  * Check Board Identity:
  39  */
  40 int checkboard(void)
  41 {
  42         char buf[64];
  43         int i = getenv_f("serial#", buf, sizeof(buf));
  44
  45         puts("Board: Bubinga - AMCC PPC405EP Evaluation Board");
  46
  47         if (i > 0) {
  48                 puts(", serial# ");
  49                 puts(buf);
  50         }
  51         putc('\n');
  52
  53         return (0);
  54 }
  55
  56 /* -------------------------------------------------------------------------
  57   dram_init() reads EEPROM via I2c. EEPROM contains all of
  58   the necessary info for SDRAM controller configuration
  59    ------------------------------------------------------------------------- */
  60 int dram_init(void)
  61 {
  62         gd->ram_size = spd_sdram();
  63
  64         return 0;
  65 }