/* * (C) Copyright 2000 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ long int spd_sdram (void); #include <common.h> #include "bubinga405ep.h" #include <asm/processor.h> int board_pre_init (void) { mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */ mtdcr (uicer, 0x00000000); /* disable all ints */ mtdcr (uiccr, 0x00000010); mtdcr (uicpr, 0xFFFF7FF0); /* set int polarities */ mtdcr (uictr, 0x00000010); /* set int trigger levels */ mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */ #if 0 #define mtebc(reg, data) mtdcr(ebccfga,reg);mtdcr(ebccfgd,data) /* CS1 */ /* BAS=0xF00,BS=0x0(1MB),BU=0x3(R/W),BW=0x0( 8 bits) */ mtebc (pb1ap, 0x02815480); mtebc (pb1cr, 0xF0018000); p = (unsigned int*)0xEF600708; t = *p; t = t | 0x00000400; *p = t; /* BAS=0xF01,BS=0x0(1MB),BU=0x3(R/W),BW=0x0(8 bits) */ mtebc (pb2ap, 0x04815A80); mtebc (pb2cr, 0xF0118000); /* BAS=0xF02,BS=0x0(1MB),BU=0x3(R/W),BW=0x0( 8 bits) */ mtebc (pb3ap, 0x01815280); mtebc (pb3cr, 0xF0218000); /* BAS=0xF03,BS=0x0(1MB),BU=0x3(R/W),BW=0x0(8 bits) */ mtebc (pb7ap, 0x01815280); mtebc (pb7cr, 0xF0318000); /* set UART1 control to select CTS/RTS */ #define FPGA_BRDC 0xF0300004 *(volatile char *) (FPGA_BRDC) |= 0x1; #endif return 0; } /* ------------------------------------------------------------------------- */ /* * Check Board Identity: */ int checkboard (void) { unsigned char *s = getenv ("serial#"); unsigned char *e; puts ("Board: "); if (!s || strncmp (s, "BUBINGA405EP", 9)) { puts ("### No HW ID - assuming WALNUT405"); } else { for (e = s; *e; ++e) { if (*e == ' ') break; } for (; s < e; ++s) { putc (*s); } } putc ('\n'); return (0); } /* ------------------------------------------------------------------------- initdram(int board_type) reads EEPROM via I2c. EEPROM contains all of the necessary info for SDRAM controller configuration ------------------------------------------------------------------------- */ long int initdram (int board_type) { long int ret; ret = spd_sdram (); return ret; } /* ------------------------------------------------------------------------- */ int testdram (void) { /* TODO: XXX XXX XXX */ printf ("test: xxx MB - ok\n"); return (0); } /* ------------------------------------------------------------------------- */