summaryrefslogtreecommitdiffstats
path: root/common/cmd_fpga.c
blob: 4e4c4abe9d5607a7e0d5cfb873d19c330343bd8e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
/*
 * (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>
#include <cmd_fpga.h>
#include <fpga.h>
#if (CONFIG_COMMANDS & CFG_CMD_NET)
#include <net.h>
#endif

#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");

	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:
		    fpga_info( dev );
		    break;

	    case FPGA_LOAD:
			fpga_load( dev, fpga_data, data_size );
		    break;

	    case FPGA_DUMP:
			fpga_dump( dev, fpga_data, data_size );
		    break;

	    default:
		    printf( "Unknown operation.\n" );
		    fpga_usage( cmdtp );
		    break;
    }
    return 0;
}

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;
}

#endif	/* CONFIG_FPGA && CONFIG_COMMANDS & CFG_CMD_FPGA */
OpenPOWER on IntegriCloud