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/*
* (C) Copyright 2000, 2001
* Rich Ireland, Enterasys Networks, rireland@enterasys.com.
*
* 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
*
*/
/*
* FPGA support
*/
#include <common.h>
#include <command.h>
#if (CONFIG_COMMANDS & CFG_CMD_NET)
#include <net.h>
#endif
#include <fpga.h>
#if 0
#define FPGA_DEBUG
#endif
#ifdef FPGA_DEBUG
#define PRINTF(fmt,args...) printf (fmt ,##args)
#else
#define PRINTF(fmt,args...)
#endif
#if defined (CONFIG_FPGA) && ( CONFIG_COMMANDS & CFG_CMD_FPGA )
/* Local functions */
static void fpga_usage (cmd_tbl_t * cmdtp);
static int fpga_get_op (char *opstr);
/* Local defines */
#define FPGA_NONE -1
#define FPGA_INFO 0
#define FPGA_LOAD 1
#define FPGA_DUMP 3
/* ------------------------------------------------------------------------- */
/* command form:
* fpga <op> <device number> <data addr> <datasize>
* where op is 'load', 'dump', or 'info'
* If there is no device number field, the fpga environment variable is used.
* If there is no data addr field, the fpgadata environment variable is used.
* The info command requires no data address field.
*/
int do_fpga (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
int op, dev = FPGA_INVALID_DEVICE;
size_t data_size = 0;
void *fpga_data = NULL;
char *devstr = getenv ("fpga");
char *datastr = getenv ("fpgadata");
int rc = FPGA_FAIL;
if (devstr)
dev = (int) simple_strtoul (devstr, NULL, 16);
if (datastr)
fpga_data = (void *) simple_strtoul (datastr, NULL, 16);
switch (argc) {
case 5: /* fpga <op> <dev> <data> <datasize> */
data_size = simple_strtoul (argv[4], NULL, 16);
case 4: /* fpga <op> <dev> <data> */
fpga_data = (void *) simple_strtoul (argv[3], NULL, 16);
PRINTF (__FUNCTION__ ": fpga_data = 0x%x\n",
(uint) fpga_data);
case 3: /* fpga <op> <dev | data addr> */
dev = (int) simple_strtoul (argv[2], NULL, 16);
PRINTF (__FUNCTION__ ": device = %d\n", dev);
/* FIXME - this is a really weak test */
if ((argc == 3) && (dev > fpga_count ())) { /* must be buffer ptr */
PRINTF (__FUNCTION__
": Assuming buffer pointer in arg 3\n");
fpga_data = (void *) dev;
PRINTF (__FUNCTION__ ": fpga_data = 0x%x\n",
(uint) fpga_data);
dev = FPGA_INVALID_DEVICE; /* reset device num */
}
case 2: /* fpga <op> */
op = (int) fpga_get_op (argv[1]);
break;
default:
PRINTF (__FUNCTION__ ": Too many or too few args (%d)\n",
argc);
op = FPGA_NONE; /* force usage display */
break;
}
switch (op) {
case FPGA_NONE:
fpga_usage (cmdtp);
break;
case FPGA_INFO:
rc = fpga_info (dev);
break;
case FPGA_LOAD:
rc = fpga_load (dev, fpga_data, data_size);
break;
case FPGA_DUMP:
rc = fpga_dump (dev, fpga_data, data_size);
break;
default:
printf ("Unknown operation.\n");
fpga_usage (cmdtp);
break;
}
return (rc);
}
static void fpga_usage (cmd_tbl_t * cmdtp)
{
printf ("Usage:\n%s\n", cmdtp->usage);
}
/*
* Map op to supported operations. We don't use a table since we
* would just have to relocate it from flash anyway.
*/
static int fpga_get_op (char *opstr)
{
int op = FPGA_NONE;
if (!strcmp ("info", opstr)) {
op = FPGA_INFO;
} else if (!strcmp ("load", opstr)) {
op = FPGA_LOAD;
} else if (!strcmp ("dump", opstr)) {
op = FPGA_DUMP;
}
if (op == FPGA_NONE) {
printf ("Unknown fpga operation \"%s\"\n", opstr);
}
return op;
}
U_BOOT_CMD (fpga, 6, 1, do_fpga,
"fpga - loadable FPGA image support\n",
"fpga [operation type] [device number] [image address] [image size]\n"
"fpga operations:\n"
"\tinfo\tlist known device information.\n"
"\tload\tLoad device from memory buffer.\n"
"\tdump\tLoad device to memory buffer.\n");
#endif /* CONFIG_FPGA && CONFIG_COMMANDS & CFG_CMD_FPGA */
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