/* * (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 defined(CONFIG_CMD_NET) #include <net.h> #endif #include <fpga.h> #include <malloc.h> /* Local functions */ static int fpga_get_op (char *opstr); /* Local defines */ #define FPGA_NONE -1 #define FPGA_INFO 0 #define FPGA_LOAD 1 #define FPGA_LOADB 2 #define FPGA_DUMP 3 #define FPGA_LOADMK 4 /* Convert bitstream data and load into the fpga */ int fpga_loadbitstream(unsigned long dev, char* fpgadata, size_t size) { #if defined(CONFIG_FPGA_XILINX) unsigned int length; unsigned int swapsize; char buffer[80]; unsigned char *dataptr; unsigned int i; int rc; dataptr = (unsigned char *)fpgadata; /* skip the first bytes of the bitsteam, their meaning is unknown */ length = (*dataptr << 8) + *(dataptr+1); dataptr+=2; dataptr+=length; /* get design name (identifier, length, string) */ length = (*dataptr << 8) + *(dataptr+1); dataptr+=2; if (*dataptr++ != 0x61) { debug("%s: Design name identifier not recognized " "in bitstream\n", __func__); return FPGA_FAIL; } length = (*dataptr << 8) + *(dataptr+1); dataptr+=2; for(i=0;i<length;i++) buffer[i] = *dataptr++; printf(" design filename = \"%s\"\n", buffer); /* get part number (identifier, length, string) */ if (*dataptr++ != 0x62) { printf("%s: Part number identifier not recognized " "in bitstream\n", __func__); return FPGA_FAIL; } length = (*dataptr << 8) + *(dataptr+1); dataptr+=2; for(i=0;i<length;i++) buffer[i] = *dataptr++; printf(" part number = \"%s\"\n", buffer); /* get date (identifier, length, string) */ if (*dataptr++ != 0x63) { printf("%s: Date identifier not recognized in bitstream\n", __func__); return FPGA_FAIL; } length = (*dataptr << 8) + *(dataptr+1); dataptr+=2; for(i=0;i<length;i++) buffer[i] = *dataptr++; printf(" date = \"%s\"\n", buffer); /* get time (identifier, length, string) */ if (*dataptr++ != 0x64) { printf("%s: Time identifier not recognized in bitstream\n", __func__); return FPGA_FAIL; } length = (*dataptr << 8) + *(dataptr+1); dataptr+=2; for(i=0;i<length;i++) buffer[i] = *dataptr++; printf(" time = \"%s\"\n", buffer); /* get fpga data length (identifier, length) */ if (*dataptr++ != 0x65) { printf("%s: Data length identifier not recognized in bitstream\n", __func__); return FPGA_FAIL; } swapsize = ((unsigned int) *dataptr <<24) + ((unsigned int) *(dataptr+1) <<16) + ((unsigned int) *(dataptr+2) <<8 ) + ((unsigned int) *(dataptr+3) ) ; dataptr+=4; printf(" bytes in bitstream = %d\n", swapsize); rc = fpga_load(dev, dataptr, swapsize); return rc; #else printf("Bitstream support only for Xilinx devices\n"); return FPGA_FAIL; #endif } /* ------------------------------------------------------------------------- */ /* 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 * const 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; int wrong_parms = 0; #if defined (CONFIG_FIT) const char *fit_uname = NULL; ulong fit_addr; #endif 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> */ #if defined(CONFIG_FIT) if (fit_parse_subimage (argv[3], (ulong)fpga_data, &fit_addr, &fit_uname)) { fpga_data = (void *)fit_addr; debug("* fpga: subimage '%s' from FIT image " "at 0x%08lx\n", fit_uname, fit_addr); } else #endif { fpga_data = (void *) simple_strtoul (argv[3], NULL, 16); debug("* fpga: cmdline image address = 0x%08lx\n", (ulong)fpga_data); } debug("%s: fpga_data = 0x%x\n", __func__, (uint) fpga_data); case 3: /* fpga <op> <dev | data addr> */ dev = (int) simple_strtoul (argv[2], NULL, 16); debug("%s: device = %d\n", __func__, dev); /* FIXME - this is a really weak test */ if ((argc == 3) && (dev > fpga_count ())) { /* must be buffer ptr */ debug("%s: Assuming buffer pointer in arg 3\n", __func__); #if defined(CONFIG_FIT) if (fit_parse_subimage (argv[2], (ulong)fpga_data, &fit_addr, &fit_uname)) { fpga_data = (void *)fit_addr; debug("* fpga: subimage '%s' from FIT image " "at 0x%08lx\n", fit_uname, fit_addr); } else #endif { fpga_data = (void *) dev; debug("* fpga: cmdline image address = " "0x%08lx\n", (ulong)fpga_data); } debug("%s: fpga_data = 0x%x\n", __func__, (uint) fpga_data); dev = FPGA_INVALID_DEVICE; /* reset device num */ } case 2: /* fpga <op> */ op = (int) fpga_get_op (argv[1]); break; default: debug("%s: Too many or too few args (%d)\n", __func__, argc); op = FPGA_NONE; /* force usage display */ break; } if (dev == FPGA_INVALID_DEVICE) { puts("FPGA device not specified\n"); op = FPGA_NONE; } switch (op) { case FPGA_NONE: case FPGA_INFO: break; case FPGA_LOAD: case FPGA_LOADB: case FPGA_DUMP: if (!fpga_data || !data_size) wrong_parms = 1; break; case FPGA_LOADMK: if (!fpga_data) wrong_parms = 1; break; } if (wrong_parms) { puts("Wrong parameters for FPGA request\n"); op = FPGA_NONE; } switch (op) { case FPGA_NONE: return CMD_RET_USAGE; case FPGA_INFO: rc = fpga_info (dev); break; case FPGA_LOAD: rc = fpga_load (dev, fpga_data, data_size); break; case FPGA_LOADB: rc = fpga_loadbitstream(dev, fpga_data, data_size); break; case FPGA_LOADMK: switch (genimg_get_format (fpga_data)) { case IMAGE_FORMAT_LEGACY: { image_header_t *hdr = (image_header_t *)fpga_data; ulong data; data = (ulong)image_get_data (hdr); data_size = image_get_data_size (hdr); rc = fpga_load (dev, (void *)data, data_size); } break; #if defined(CONFIG_FIT) case IMAGE_FORMAT_FIT: { const void *fit_hdr = (const void *)fpga_data; int noffset; const void *fit_data; if (fit_uname == NULL) { puts ("No FIT subimage unit name\n"); return 1; } if (!fit_check_format (fit_hdr)) { puts ("Bad FIT image format\n"); return 1; } /* get fpga component image node offset */ noffset = fit_image_get_node (fit_hdr, fit_uname); if (noffset < 0) { printf ("Can't find '%s' FIT subimage\n", fit_uname); return 1; } /* verify integrity */ if (!fit_image_check_hashes (fit_hdr, noffset)) { puts ("Bad Data Hash\n"); return 1; } /* get fpga subimage data address and length */ if (fit_image_get_data (fit_hdr, noffset, &fit_data, &data_size)) { puts ("Could not find fpga subimage data\n"); return 1; } rc = fpga_load (dev, fit_data, data_size); } break; #endif default: puts ("** Unknown image type\n"); rc = FPGA_FAIL; break; } break; case FPGA_DUMP: rc = fpga_dump (dev, fpga_data, data_size); break; default: printf ("Unknown operation\n"); return CMD_RET_USAGE; } return (rc); } /* * 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 ("loadb", opstr)) { op = FPGA_LOADB; } else if (!strcmp ("load", opstr)) { op = FPGA_LOAD; } else if (!strcmp ("loadmk", opstr)) { op = FPGA_LOADMK; } 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, "loadable FPGA image support", "[operation type] [device number] [image address] [image size]\n" "fpga operations:\n" " dump\t[dev]\t\t\tLoad device to memory buffer\n" " info\t[dev]\t\t\tlist known device information\n" " load\t[dev] [address] [size]\tLoad device from memory buffer\n" " loadb\t[dev] [address] [size]\t" "Load device from bitstream buffer (Xilinx only)\n" " loadmk [dev] [address]\tLoad device generated with mkimage" #if defined(CONFIG_FIT) "\n" "\tFor loadmk operating on FIT format uImage address must include\n" "\tsubimage unit name in the form of addr:<subimg_uname>" #endif );