Initial revision

1 files changed, 158 insertions, 0 deletions

diff --git a/common/cmd_fpga.c b/common/cmd_fpga.c
new file mode 100644
index 0000000..4e4c4ab
--- /dev/null
+++ b/common/cmd_fpga.c
@@ -0,0 +1,158 @@
+/*
+ * (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 */