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/*
* Copyright (c) 2009, Code Aurora Forum. All rights reserved.
*
* (C) Copyright 2001
* 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
*/
/*
* Command to change the size, address of SDRAM
*/
#include <common.h>
#include <command.h>
extern int dram_reinit (uint32_t start_addr, uint32_t size, int bank_num);
int do_ramconfig (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
int j;
DECLARE_GLOBAL_DATA_PTR;
if(argc == 1) {
for(j=0;j<CONFIG_NR_DRAM_BANKS; j++) {
printf( "SDRAM BANK %d:\n"
"Base:\t 0x%08lx\n"
"Size:\t 0x%08lx\n",
j,
gd->bd->bi_dram[j].start,
gd->bd->bi_dram[j].size);
}
return 0;
}
if(argc < 4) {
printf( "Missing Parameters...\n"
"Usage: ramconfig <bank> <start_address> <size>\n" );
return 1;
} else {
j = simple_strtoul(argv[1], NULL, 16);
if(j<CONFIG_NR_DRAM_BANKS) {
dram_reinit((uint32_t)simple_strtoul(argv[2], NULL, 16),
(uint32_t)simple_strtoul(argv[3], NULL, 16),
j);
} else {
printf( "Invalid bank...must be < %d\n"
"Usage: ramconfig <bank> <start_address> <size>\n",
CONFIG_NR_DRAM_BANKS);
}
}
return 0;
}
U_BOOT_CMD(
ramconfig, 4, 1, do_ramconfig,
"change sdram start address and size",
" <bank> <start_address> <size>\n"
" change SDRAM start address and size. \n "
" These are passed through ATAG_MEM tag(s) to Linux.\n"
);
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