csu3_am335x/EVSE/GPL/plc-utils.LNX.2.1.20/source/ram/sdram.c

/*====================================================================*
*
*   Copyright (c) 2013 Qualcomm Atheros, Inc.
*
*   All rights reserved.
*
*====================================================================*/

/*====================================================================*
 *
 *   sdram.c - create INT6300 sdram configuration files;
 *
 *   sdram.h
 *
 *   this program writes two sdram configuration files in the current
 *   working directory; both files are for Linux toolkit programs and
 *   not the Windows Device Manager;
 *
 *   one of these sdram configuration blocks must be sent to the 
 *   INT6300 bootloader with VS_SET_SDRAM before downloading NVM 
 *   and PIB files;
 *
 *   Contributor(s):
 *	Charles Maier <cmaier@qca.qualcomm.com>
 *
 *--------------------------------------------------------------------*/

#include <stdio.h>
#include <unistd.h>
#include <stdint.h>
#include <fcntl.h>

#include "../tools/memory.h"
#include "../ram/sdram.h"

#ifndef MAKEFILE
#include "../tools/checksum32.c"
#endif

#define FILE1 "sdram16mb.cfg"
#define FILE2 "sdram64mb.cfg"

int main (int argc, char const * argv []) 

{ 
	const uint8_t sdram16mb [32] = 
	{ 
		0x00, 
		0x00, 
		0x00, 
		0x01, 
		0x68, 
		0x2f, 
		0x14, 
		0x00, 
		0x92, 
		0xd4, 
		0xe1, 
		0x01, 
		0xd6, 
		0x83, 
		0x08, 
		0x00, 
		0x88, 
		0x32, 
		0x00, 
		0x00, 
		0xdb, 
		0x06, 
		0x00, 
		0x00, 
		0x00, 
		0x00, 
		0x00, 
		0x00, 
		0x00, 
		0x00, 
		0x00, 
		0x00
	}; 
	const uint8_t sdram64mb [32] = 
	{ 
		0x00, 
		0x00, 
		0x00, 
		0x04, 
		0x88, 
		0x31, 
		0x14, 
		0x00, 
		0x91, 
		0xd4, 
		0xe1, 
		0x01, 
		0xe3, 
		0x2b, 
		0x01, 
		0x00, 
		0x89, 
		0x30, 
		0x00, 
		0x00, 
		0x66, 
		0x03, 
		0x00, 
		0x00, 
		0x00, 
		0x01, 
		0x00, 
		0x00, 
		0x00, 
		0x00, 
		0x00, 
		0x00
	}; 
	int fd; 
	uint32_t checksum; 
	if ((fd = open (FILE1, O_CREAT | O_WRONLY | O_TRUNC, 0444)) != - 1) 
	{ 
		printf ("writing %s\n", FILE1); 
		checksum = checksum32 (sdram16mb, sizeof (sdram16mb), 0); 
		write (fd, sdram16mb, sizeof (sdram16mb)); 
		write (fd, & checksum, sizeof (checksum)); 
		close (fd); 
	} 
	if ((fd = open (FILE2, O_CREAT | O_WRONLY | O_TRUNC, 0444)) != - 1) 
	{ 
		printf ("writing %s\n", FILE2); 
		checksum = checksum32 (sdram64mb, sizeof (sdram64mb), 0); 
		write (fd, sdram64mb, sizeof (sdram64mb)); 
		write (fd, & checksum, sizeof (checksum)); 
		close (fd); 
	} 
	return (0); 
}