/* * (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"); 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; } 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 */