////////////////////////////////////////////////////////////////////////////////
|
////////////////////////////////////////////////////////////////////////////////
|
//
|
//
|
// Filename: zipload.cpp
|
// Filename: zipload.cpp
|
//
|
//
|
// Project: CMod S6 System on a Chip, ZipCPU demonstration project
|
// Project: CMod S6 System on a Chip, ZipCPU demonstration project
|
//
|
//
|
// Purpose: To load the flash--both a the two configurations and the
|
// Purpose: To load the flash--both a the two configurations and the
|
// a program for the ZipCPU into (flash) memory.
|
// a program for the ZipCPU into (flash) memory.
|
//
|
//
|
// Steps:
|
// Steps:
|
// 1. Reboot the CMod into the alternate/debug/command mode
|
// 1. Reboot the CMod into the alternate/debug/command mode
|
// 2. Load flash memory
|
// 2. Load flash memory
|
// 3. Reload (reboot) the CMod configuration into ZipCPU mode
|
// 3. Reload (reboot) the CMod configuration into ZipCPU mode
|
// 4. Program should start on its own.
|
// 4. Program should start on its own.
|
//
|
//
|
// Creator: Dan Gisselquist, Ph.D.
|
// Creator: Dan Gisselquist, Ph.D.
|
// Gisselquist Technology, LLC
|
// Gisselquist Technology, LLC
|
//
|
//
|
////////////////////////////////////////////////////////////////////////////////
|
////////////////////////////////////////////////////////////////////////////////
|
//
|
//
|
// Copyright (C) 2015-2016, Gisselquist Technology, LLC
|
// Copyright (C) 2015-2017, Gisselquist Technology, LLC
|
//
|
//
|
// This program is free software (firmware): you can redistribute it and/or
|
// This program is free software (firmware): you can redistribute it and/or
|
// modify it under the terms of the GNU General Public License as published
|
// modify it under the terms of the GNU General Public License as published
|
// by the Free Software Foundation, either version 3 of the License, or (at
|
// by the Free Software Foundation, either version 3 of the License, or (at
|
// your option) any later version.
|
// your option) any later version.
|
//
|
//
|
// This program is distributed in the hope that it will be useful, but WITHOUT
|
// This program is distributed in the hope that it will be useful, but WITHOUT
|
// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
|
// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
|
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
// for more details.
|
// for more details.
|
//
|
//
|
|
// You should have received a copy of the GNU General Public License along
|
|
// with this program. (It's in the $(ROOT)/doc directory. Run make with no
|
|
// target there if the PDF file isn't present.) If not, see
|
|
// <http://www.gnu.org/licenses/> for a copy.
|
|
//
|
// License: GPL, v3, as defined and found on www.gnu.org,
|
// License: GPL, v3, as defined and found on www.gnu.org,
|
// http://www.gnu.org/licenses/gpl.html
|
// http://www.gnu.org/licenses/gpl.html
|
//
|
//
|
//
|
//
|
////////////////////////////////////////////////////////////////////////////////
|
////////////////////////////////////////////////////////////////////////////////
|
//
|
//
|
//
|
//
|
//
|
|
#include <stdio.h>
|
#include <stdio.h>
|
#include <stdlib.h>
|
#include <stdlib.h>
|
#include <sys/types.h>
|
#include <sys/types.h>
|
#include <sys/stat.h>
|
#include <sys/stat.h>
|
#include <fcntl.h>
|
#include <fcntl.h>
|
#include <unistd.h>
|
#include <unistd.h>
|
#include <strings.h>
|
#include <strings.h>
|
#include <ctype.h>
|
#include <ctype.h>
|
#include <string.h>
|
#include <string.h>
|
#include <signal.h>
|
#include <signal.h>
|
#include <assert.h>
|
#include <assert.h>
|
|
|
#include "devbus.h"
|
#include "devbus.h"
|
#include "llcomms.h"
|
#include "llcomms.h"
|
#include "deppi.h"
|
#include "deppi.h"
|
#include "regdefs.h"
|
#include "regdefs.h"
|
#include "flashdrvr.h"
|
#include "flashdrvr.h"
|
|
#include "zipelf.h"
|
bool iself(const char *fname) {
|
|
FILE *fp;
|
|
bool ret = true;
|
|
|
|
if ((!fname)||(!fname[0]))
|
|
return false;
|
|
|
|
fp = fopen(fname, "rb");
|
|
|
|
if (!fp) return false;
|
|
if (0x7f != fgetc(fp)) ret = false;
|
|
if ('E' != fgetc(fp)) ret = false;
|
|
if ('L' != fgetc(fp)) ret = false;
|
|
if ('F' != fgetc(fp)) ret = false;
|
|
fclose(fp);
|
|
return ret;
|
|
}
|
|
|
|
long fgetwords(FILE *fp) {
|
|
// Return the number of words in the current file, and return the
|
|
// file as though it had never been adjusted
|
|
long fpos, flen;
|
|
fpos = ftell(fp);
|
|
if (0 != fseek(fp, 0l, SEEK_END)) {
|
|
fprintf(stderr, "ERR: Could not determine file size\n");
|
|
perror("O/S Err:");
|
|
exit(-2);
|
|
} flen = ftell(fp);
|
|
if (0 != fseek(fp, fpos, SEEK_SET)) {
|
|
fprintf(stderr, "ERR: Could not seek on file\n");
|
|
perror("O/S Err:");
|
|
exit(-2);
|
|
} flen /= sizeof(FPGA::BUSW);
|
|
return flen;
|
|
}
|
|
|
|
FPGA *m_fpga;
|
FPGA *m_fpga;
|
class SECTION {
|
|
public:
|
|
unsigned m_start, m_len;
|
|
FPGA::BUSW m_data[1];
|
|
};
|
|
|
|
SECTION **singlesection(int nwords) {
|
|
fprintf(stderr, "NWORDS = %d\n", nwords);
|
|
size_t sz = (2*(sizeof(SECTION)+sizeof(SECTION *))
|
|
+(nwords-1)*(sizeof(FPGA::BUSW)));
|
|
char *d = (char *)malloc(sz);
|
|
SECTION **r = (SECTION **)d;
|
|
memset(r, 0, sz);
|
|
r[0] = (SECTION *)(&d[2*sizeof(SECTION *)]);
|
|
r[0]->m_len = nwords;
|
|
r[1] = (SECTION *)(&r[0]->m_data[r[0]->m_len]);
|
|
r[0]->m_start = 0;
|
|
r[1]->m_start = 0;
|
|
r[1]->m_len = 0;
|
|
|
|
return r;
|
|
}
|
|
|
|
SECTION **rawsection(const char *fname) {
|
|
SECTION **secpp, *secp;
|
|
unsigned num_words;
|
|
FILE *fp;
|
|
int nr;
|
|
|
|
fp = fopen(fname, "r");
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Could not open: %s\n", fname);
|
|
exit(-1);
|
|
}
|
|
|
|
if ((num_words=fgetwords(fp)) > FLASHWORDS-(RESET_ADDRESS-SPIFLASH)) {
|
|
fprintf(stderr, "File overruns flash memory\n");
|
|
exit(-1);
|
|
}
|
|
secpp = singlesection(num_words);
|
|
secp = secpp[0];
|
|
secp->m_start = RAMBASE;
|
|
secp->m_len = num_words;
|
|
nr= fread(secp->m_data, sizeof(FPGA::BUSW), num_words, fp);
|
|
if (nr != (int)num_words) {
|
|
fprintf(stderr, "Could not read entire file\n");
|
|
perror("O/S Err:");
|
|
exit(-2);
|
|
} assert(secpp[1]->m_len == 0);
|
|
|
|
return secpp;
|
|
}
|
|
|
|
unsigned byteswap(unsigned n) {
|
|
unsigned r;
|
|
|
|
r = (n&0x0ff); n>>= 8;
|
|
r = (r<<8) | (n&0x0ff); n>>= 8;
|
|
r = (r<<8) | (n&0x0ff); n>>= 8;
|
|
r = (r<<8) | (n&0x0ff); n>>= 8;
|
|
|
|
return r;
|
|
}
|
|
|
|
// #define CHEAP_AND_EASY
|
void usage(void) {
|
#ifdef CHEAP_AND_EASY
|
printf("USAGE: zipload [-h] [<bit-file> [<alt-bit-file>]] <zip-program-file>\n");
|
#else
|
printf("\n"
|
#include <libelf.h>
|
"\t-h\tDisplay this usage statement\n"
|
#include <gelf.h>
|
);
|
|
|
void elfread(const char *fname, unsigned &entry, SECTION **§ions) {
|
|
Elf *e;
|
|
int fd, i;
|
|
size_t n;
|
|
char *id;
|
|
Elf_Kind ek;
|
|
GElf_Ehdr ehdr;
|
|
GElf_Phdr phdr;
|
|
const bool dbg = false;
|
|
|
|
if (elf_version(EV_CURRENT) == EV_NONE) {
|
|
fprintf(stderr, "ELF library initialization err, %s\n", elf_errmsg(-1));
|
|
perror("O/S Err:");
|
|
exit(EXIT_FAILURE);
|
|
} if ((fd = open(fname, O_RDONLY, 0)) < 0) {
|
|
fprintf(stderr, "Could not open %s\n", fname);
|
|
perror("O/S Err:");
|
|
exit(EXIT_FAILURE);
|
|
} if ((e = elf_begin(fd, ELF_C_READ, NULL))==NULL) {
|
|
fprintf(stderr, "Could not run elf_begin, %s\n", elf_errmsg(-1));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
ek = elf_kind(e);
|
|
if (ek == ELF_K_ELF) {
|
|
; // This is the kind of file we should expect
|
|
} else if (ek == ELF_K_AR) {
|
|
fprintf(stderr, "Cannot run an archive!\n");
|
|
exit(EXIT_FAILURE);
|
|
} else if (ek == ELF_K_NONE) {
|
|
;
|
|
} else {
|
|
fprintf(stderr, "Unexpected ELF file kind!\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (gelf_getehdr(e, &ehdr) == NULL) {
|
|
fprintf(stderr, "getehdr() failed: %s\n", elf_errmsg(-1));
|
|
exit(EXIT_FAILURE);
|
|
} if ((i=gelf_getclass(e)) == ELFCLASSNONE) {
|
|
fprintf(stderr, "getclass() failed: %s\n", elf_errmsg(-1));
|
|
exit(EXIT_FAILURE);
|
|
} if ((id = elf_getident(e, NULL)) == NULL) {
|
|
fprintf(stderr, "getident() failed: %s\n", elf_errmsg(-1));
|
|
exit(EXIT_FAILURE);
|
|
} if (i != ELFCLASS32) {
|
|
fprintf(stderr, "This is a 64-bit ELF file, ZipCPU ELF files are all 32-bit\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (dbg) {
|
|
printf(" %-20s 0x%jx\n", "e_type", (uintmax_t)ehdr.e_type);
|
|
printf(" %-20s 0x%jx\n", "e_machine", (uintmax_t)ehdr.e_machine);
|
|
printf(" %-20s 0x%jx\n", "e_version", (uintmax_t)ehdr.e_version);
|
|
printf(" %-20s 0x%jx\n", "e_entry", (uintmax_t)ehdr.e_entry);
|
|
printf(" %-20s 0x%jx\n", "e_phoff", (uintmax_t)ehdr.e_phoff);
|
|
printf(" %-20s 0x%jx\n", "e_shoff", (uintmax_t)ehdr.e_shoff);
|
|
printf(" %-20s 0x%jx\n", "e_flags", (uintmax_t)ehdr.e_flags);
|
|
printf(" %-20s 0x%jx\n", "e_ehsize", (uintmax_t)ehdr.e_ehsize);
|
|
printf(" %-20s 0x%jx\n", "e_phentsize", (uintmax_t)ehdr.e_phentsize);
|
|
printf(" %-20s 0x%jx\n", "e_shentsize", (uintmax_t)ehdr.e_shentsize);
|
|
printf("\n");
|
|
}
|
|
|
|
|
|
// Check whether or not this is an ELF file for the ZipCPU ...
|
|
if (ehdr.e_machine != 0x0dadd) {
|
|
fprintf(stderr, "This is not a ZipCPU ELF file\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
// Get our entry address
|
|
entry = ehdr.e_entry;
|
|
|
|
|
|
// Now, let's go look at the program header
|
|
if (elf_getphdrnum(e, &n) != 0) {
|
|
fprintf(stderr, "elf_getphdrnum() failed: %s\n", elf_errmsg(-1));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
unsigned total_octets = 0, current_offset=0, current_section=0;
|
|
for(i=0; i<(int)n; i++) {
|
|
total_octets += sizeof(SECTION *)+sizeof(SECTION);
|
|
|
|
if (gelf_getphdr(e, i, &phdr) != &phdr) {
|
|
fprintf(stderr, "getphdr() failed: %s\n", elf_errmsg(-1));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (dbg) {
|
|
printf(" %-20s 0x%x\n", "p_type", phdr.p_type);
|
|
printf(" %-20s 0x%jx\n", "p_offset", phdr.p_offset);
|
|
printf(" %-20s 0x%jx\n", "p_vaddr", phdr.p_vaddr);
|
|
printf(" %-20s 0x%jx\n", "p_paddr", phdr.p_paddr);
|
|
printf(" %-20s 0x%jx\n", "p_filesz", phdr.p_filesz);
|
|
printf(" %-20s 0x%jx\n", "p_memsz", phdr.p_memsz);
|
|
printf(" %-20s 0x%x [", "p_flags", phdr.p_flags);
|
|
|
|
if (phdr.p_flags & PF_X) printf(" Execute");
|
|
if (phdr.p_flags & PF_R) printf(" Read");
|
|
if (phdr.p_flags & PF_W) printf(" Write");
|
|
printf("]\n");
|
|
printf(" %-20s 0x%jx\n", "p_align", phdr.p_align);
|
|
}
|
|
|
|
total_octets += phdr.p_memsz;
|
|
}
|
}
|
|
|
char *d = (char *)malloc(total_octets + sizeof(SECTION)+sizeof(SECTION *));
|
void skip_bitfile_header(FILE *fp) {
|
memset(d, 0, total_octets);
|
const unsigned SEARCHLN = 204, MATCHLN = 16;
|
|
const unsigned char matchstr[MATCHLN] = {
|
SECTION **r = sections = (SECTION **)d;
|
0xff, 0xff, 0xff, 0xff,
|
current_offset = (n+1)*sizeof(SECTION *);
|
0xff, 0xff, 0xff, 0xff,
|
current_section = 0;
|
0xff, 0xff, 0xff, 0xff,
|
|
//
|
for(i=0; i<(int)n; i++) {
|
0xaa, 0x99, 0x55, 0x66 };
|
r[i] = (SECTION *)(&d[current_offset]);
|
unsigned char buf[SEARCHLN];
|
|
|
if (gelf_getphdr(e, i, &phdr) != &phdr) {
|
rewind(fp);
|
fprintf(stderr, "getphdr() failed: %s\n", elf_errmsg(-1));
|
fread(buf, sizeof(char), SEARCHLN, fp);
|
exit(EXIT_FAILURE);
|
for(int start=0; start+MATCHLN<SEARCHLN; start++) {
|
|
int mloc;
|
|
|
|
// Search backwards, since the starting bytes just aren't that
|
|
// interesting.
|
|
for(mloc = MATCHLN-1; mloc >= 0; mloc--)
|
|
if (buf[start+mloc] != matchstr[mloc])
|
|
break;
|
|
if (mloc < 0) {
|
|
fseek(fp, start, SEEK_SET);
|
|
return;
|
}
|
}
|
|
|
if (dbg) {
|
|
printf(" %-20s 0x%jx\n", "p_offset", phdr.p_offset);
|
|
printf(" %-20s 0x%jx\n", "p_vaddr", phdr.p_vaddr);
|
|
printf(" %-20s 0x%jx\n", "p_paddr", phdr.p_paddr);
|
|
printf(" %-20s 0x%jx\n", "p_filesz", phdr.p_filesz);
|
|
printf(" %-20s 0x%jx\n", "p_memsz", phdr.p_memsz);
|
|
printf(" %-20s 0x%x [", "p_flags", phdr.p_flags);
|
|
|
|
if (phdr.p_flags & PF_X) printf(" Execute");
|
|
if (phdr.p_flags & PF_R) printf(" Read");
|
|
if (phdr.p_flags & PF_W) printf(" Write");
|
|
printf("]\n");
|
|
|
|
printf(" %-20s 0x%jx\n", "p_align", phdr.p_align);
|
|
}
|
}
|
|
|
current_section++;
|
fprintf(stderr, "Could not find bin-file header within bit file\n");
|
|
fclose(fp);
|
r[i]->m_start = phdr.p_paddr;
|
|
r[i]->m_len = phdr.p_filesz/ sizeof(FPGA::BUSW);
|
|
|
|
current_offset += phdr.p_memsz + sizeof(SECTION);
|
|
|
|
// Now, let's read in our section ...
|
|
if (lseek(fd, phdr.p_offset, SEEK_SET) < 0) {
|
|
fprintf(stderr, "Could not seek to file position %08lx\n", phdr.p_offset);
|
|
perror("O/S Err:");
|
|
exit(EXIT_FAILURE);
|
|
} if (phdr.p_filesz > phdr.p_memsz)
|
|
phdr.p_filesz = 0;
|
|
if (read(fd, r[i]->m_data, phdr.p_filesz) != (int)phdr.p_filesz) {
|
|
fprintf(stderr, "Didnt read entire section\n");
|
|
perror("O/S Err:");
|
|
exit(EXIT_FAILURE);
|
exit(EXIT_FAILURE);
|
}
|
}
|
|
|
// Next, we need to byte swap it from big to little endian
|
|
for(unsigned j=0; j<r[i]->m_len; j++)
|
|
r[i]->m_data[j] = byteswap(r[i]->m_data[j]);
|
|
|
|
if (dbg) for(unsigned j=0; j<r[i]->m_len; j++)
|
|
fprintf(stderr, "ADR[%04x] = %08x\n", r[i]->m_start+j,
|
|
r[i]->m_data[j]);
|
|
}
|
|
|
|
r[i] = (SECTION *)(&d[current_offset]);
|
|
r[current_section]->m_start = 0;
|
|
r[current_section]->m_len = 0;
|
|
|
|
elf_end(e);
|
|
close(fd);
|
|
}
|
|
#endif
|
|
|
|
void usage(void) {
|
|
printf("USAGE: ziprun [-h] [<bit-file> [<alt-bit-file>]] <zip-program-file>\n");
|
|
printf("\n"
|
|
"\t-h\tDisplay this usage statement\n");
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
int main(int argc, char **argv) {
|
int skp=0;
|
int skp=0, argn;
|
bool permit_raw_files = false, debug_only = false;
|
bool debug_only = false, verbose = false;
|
unsigned entry = RAMBASE;
|
bool ignore_missing_memory = false;
|
|
unsigned entry = 0;
|
FLASHDRVR *flash = NULL;
|
FLASHDRVR *flash = NULL;
|
const char *bitfile = NULL, *altbitfile = NULL;
|
const char *bitfile = NULL, *altbitfile = NULL, *execfile = NULL;
|
|
size_t bitsz;
|
|
FILE *fp;
|
|
|
if (argc < 2) {
|
if (argc < 2) {
|
usage();
|
usage();
|
exit(EXIT_SUCCESS);
|
exit(EXIT_SUCCESS);
|
}
|
}
|
|
|
skp=1;
|
skp=1;
|
for(int argn=0; argn<argc-skp; argn++) {
|
for(argn=0; argn<argc-skp; argn++) {
|
if (argv[argn+skp][0] == '-') {
|
if (argv[argn+skp][0] == '-') {
|
switch(argv[argn+skp][1]) {
|
switch(argv[argn+skp][1]) {
|
case 'd':
|
case 'd':
|
debug_only = true;
|
debug_only = true;
|
break;
|
break;
|
case 'h':
|
case 'h':
|
usage();
|
usage();
|
exit(EXIT_SUCCESS);
|
exit(EXIT_SUCCESS);
|
break;
|
break;
|
case 'r':
|
case 'v':
|
permit_raw_files = true;
|
verbose = true;
|
break;
|
break;
|
default:
|
default:
|
fprintf(stderr, "Unknown option, -%c\n\n",
|
fprintf(stderr, "Unknown option, -%c\n\n",
|
argv[argn+skp][0]);
|
argv[argn+skp][0]);
|
usage();
|
usage();
|
exit(EXIT_FAILURE);
|
exit(EXIT_FAILURE);
|
break;
|
break;
|
} skp++; argn--;
|
} skp++; argn--;
|
} else { // Check for bit files
|
} else {
|
int sl = strlen(argv[argn+skp]);
|
// Anything here must be either the program to load,
|
if ((sl>4)&&(strcmp(&argv[argn+skp][sl-4],".bit")==0)) {
|
// or a bit file to load
|
if (bitfile == NULL)
|
|
bitfile = argv[argn+skp];
|
|
else if (altbitfile == NULL)
|
|
altbitfile = argv[argn+skp];
|
|
else {
|
|
fprintf(stderr, "Err: Too many bit files listed\n");
|
|
exit(EXIT_FAILURE);
|
|
} skp++; argn--;
|
|
} else
|
|
argv[argn] = argv[argn+skp];
|
argv[argn] = argv[argn+skp];
|
}
|
}
|
} argc -= skp;
|
} argc -= skp;
|
|
|
|
|
|
for(argn=0; argn<argc; argn++) {
|
|
if (iself(argv[argn])) {
|
|
if (execfile) {
|
|
printf("Too many executable files given, %s and %s\n", execfile, argv[argn]);
|
|
usage();
|
|
exit(EXIT_FAILURE);
|
|
} execfile = argv[argn];
|
|
} else { // if (isbitfile(argv[argn]))
|
|
if (!bitfile)
|
|
bitfile = argv[argn];
|
|
else if (!altbitfile)
|
|
altbitfile = argv[argn];
|
|
else {
|
|
printf("Unknown file name or too many files, %s\n", argv[argn]);
|
|
usage();
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (verbose) {
|
|
if (bitfile) printf(" BITFILE: %s\n", bitfile);
|
|
if (altbitfile) printf("ABITFILE: %s\n", altbitfile);
|
|
if (execfile) printf("EXECTFILE: %s\n", execfile);
|
|
}
|
|
|
|
if ((execfile == NULL)&&(bitfile == NULL)) {
|
|
printf("No executable or bit file(s) given!\n\n");
|
|
usage();
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if ((bitfile == NULL)&&(altbitfile != NULL)) {
|
|
printf("Cannot program an alternate bitfile without a main bitfile\n\n");
|
|
usage();
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
if ((bitfile)&&(access(bitfile,R_OK)!=0)) {
|
if ((bitfile)&&(access(bitfile,R_OK)!=0)) {
|
|
// If there's no code file, or the code file cannot be opened
|
fprintf(stderr, "Cannot open bitfile, %s\n", bitfile);
|
fprintf(stderr, "Cannot open bitfile, %s\n", bitfile);
|
exit(EXIT_FAILURE);
|
exit(EXIT_FAILURE);
|
} if ((altbitfile)&&(access(altbitfile,R_OK)!=0)) {
|
}
|
fprintf(stderr, "Cannot open alternate bitfile, %s\n",
|
|
altbitfile);
|
if ((altbitfile)&&(access(altbitfile,R_OK)!=0)) {
|
|
// If there's no code file, or the code file cannot be opened
|
|
fprintf(stderr, "Cannot open alternate bitfile, %s\n", altbitfile);
|
exit(EXIT_FAILURE);
|
exit(EXIT_FAILURE);
|
} if(((!bitfile)&&(argc<=0)) || ((argc>0)&&(access(argv[0],R_OK)!=0))) {
|
} if ((execfile)&&(access(execfile,R_OK)!=0)) {
|
// If there's no code file, or the code file cannot be opened
|
// If there's no code file, or the code file cannot be opened
|
if (argc>0)
|
fprintf(stderr, "Cannot open executable, %s\n\n", execfile);
|
fprintf(stderr, "Cannot open executable, %s\n", argv[0]);
|
usage();
|
else
|
exit(EXIT_FAILURE);
|
|
} else if (!iself(execfile)) {
|
|
printf("%s is not an executable file\n\n", execfile);
|
usage();
|
usage();
|
exit(EXIT_FAILURE);
|
exit(EXIT_FAILURE);
|
}
|
}
|
|
|
const char *codef = (argc>0)?argv[0]:NULL;
|
char *fbuf = new char[FLASHLEN];
|
DEVBUS::BUSW *fbuf = new DEVBUS::BUSW[FLASHWORDS];
|
|
|
|
// Set the flash buffer to all ones
|
// Set the flash buffer to all ones
|
memset(fbuf, -1, FLASHWORDS*sizeof(fbuf[0]));
|
memset(fbuf, -1, FLASHLEN);
|
|
|
if (debug_only) {
|
if (debug_only) {
|
m_fpga = NULL;
|
m_fpga = NULL;
|
} else {
|
} else {
|
char szSel[64];
|
char szSel[64];
|
strcpy(szSel, "SN:210282768825");
|
strcpy(szSel, S6SN);
|
m_fpga = new FPGA(new DEPPI(szSel));
|
m_fpga = new FPGA(new DEPPI(szSel));
|
}
|
}
|
|
|
|
// Make certain we can talk to the FPGA
|
|
try {
|
|
unsigned v = m_fpga->readio(R_VERSION);
|
|
if (v < 0x20170000) {
|
|
fprintf(stderr, "Could not communicate with board (invalid version)\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
} catch(BUSERR b) {
|
|
fprintf(stderr, "Could not communicate with board (BUSERR when reading VERSION)\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
flash = (debug_only)?NULL : new FLASHDRVR(m_fpga);
|
flash = (debug_only)?NULL : new FLASHDRVR(m_fpga);
|
|
|
// First, see if we need to load a bit file
|
// First, see if we need to load a bit file
|
if (bitfile) {
|
if (bitfile) {
|
int len;
|
|
FILE *fp = fopen(bitfile, "rb");
|
|
|
|
fseek(fp, 0x5dl, SEEK_SET);
|
fp = fopen(bitfile, "r");
|
len = fread(&fbuf[CONFIG_ADDRESS-SPIFLASH],
|
if (strcmp(&argv[argn][strlen(argv[argn])-4],".bit")==0)
|
|
skip_bitfile_header(fp);
|
|
bitsz = fread(&fbuf[CONFIG_ADDRESS-SPIFLASH],
|
sizeof(fbuf[0]),
|
sizeof(fbuf[0]),
|
FLASHWORDS-(CONFIG_ADDRESS-SPIFLASH), fp);
|
FLASHLEN - (CONFIG_ADDRESS-SPIFLASH), fp);
|
assert(len + CONFIG_ADDRESS < ALTCONFIG_ADDRESS);
|
|
fclose(fp);
|
fclose(fp);
|
|
|
for(int i=0; i<4; i++) {
|
try {
|
// printf("0x%08x\n", fbuf[i]);
|
|
assert(fbuf[i] == 0x0ffffffff);
|
|
} // printf("0x%08x\n", fbuf[4]);
|
|
assert(fbuf[4] == 0x0665599aa);
|
|
|
|
printf("Loading: %s\n", bitfile);
|
printf("Loading: %s\n", bitfile);
|
if ((flash)&&(!flash->write(CONFIG_ADDRESS, len, &fbuf[CONFIG_ADDRESS-SPIFLASH], true))) {
|
flash->write(CONFIG_ADDRESS, bitsz, fbuf, true);
|
fprintf(stderr, "Could not write primary bitfile\n");
|
} catch(BUSERR b) {
|
exit(EXIT_FAILURE);
|
fprintf(stderr, "BUS-ERR @0x%08x\n", b.addr);
|
|
exit(-1);
|
|
}
|
}
|
}
|
} if (altbitfile) {
|
|
int len;
|
|
FILE *fp = fopen(altbitfile, "rb");
|
|
|
|
// The alternate configuration follows the first configuration
|
// Then see if we were given an alternate bit file
|
len = fread(&fbuf[ALTCONFIG_ADDRESS-SPIFLASH],
|
if (altbitfile) {
|
|
size_t altsz;
|
|
assert(CONFIG_ADDRESS + bitsz < ALTCONFIG_ADDRESS);
|
|
|
|
fp = fopen(altbitfile, "r");
|
|
if (strcmp(&argv[argn][strlen(argv[argn])-4],".bit")==0)
|
|
skip_bitfile_header(fp);
|
|
altsz = fread(&fbuf[ALTCONFIG_ADDRESS-SPIFLASH],
|
sizeof(fbuf[0]),
|
sizeof(fbuf[0]),
|
FLASHWORDS-(ALTCONFIG_ADDRESS-SPIFLASH), fp);
|
FLASHLEN-(ALTCONFIG_ADDRESS-SPIFLASH), fp);
|
assert(len + ALTCONFIG_ADDRESS < RESET_ADDRESS);
|
assert(ALTCONFIG_ADDRESS+altsz < RESET_ADDRESS);
|
fclose(fp);
|
fclose(fp);
|
printf("Loading: %s\n", altbitfile);
|
|
|
|
if ((flash)&&(!flash->write(ALTCONFIG_ADDRESS, len, &fbuf[ALTCONFIG_ADDRESS-SPIFLASH], true))) {
|
try {
|
fprintf(stderr, "Could not write alternate bitfile\n");
|
printf("Loading: %s\n", altbitfile);
|
exit(EXIT_FAILURE);
|
flash->write(ALTCONFIG_ADDRESS, altsz, fbuf, true);
|
|
} catch(BUSERR b) {
|
|
fprintf(stderr, "BUS-ERR @0x%08x\n", b.addr);
|
|
exit(-1);
|
}
|
}
|
|
} else {
|
|
assert(CONFIG_ADDRESS+bitsz < RESET_ADDRESS);
|
}
|
}
|
|
|
if (codef) try {
|
if (execfile) try {
|
SECTION **secpp = NULL, *secp;
|
ELFSECTION **secpp = NULL, *secp;
|
|
|
if(iself(codef)) {
|
if(iself(execfile)) {
|
// zip-readelf will help with both of these ...
|
// zip-readelf will help with both of these ...
|
elfread(codef, entry, secpp);
|
elfread(execfile, entry, secpp);
|
assert(entry == RESET_ADDRESS);
|
assert(entry == RESET_ADDRESS);
|
} else if (permit_raw_files) {
|
|
secpp = rawsection(codef);
|
|
entry = RESET_ADDRESS;
|
|
} else {
|
} else {
|
fprintf(stderr, "ERR: %s is not in ELF format\n", codef);
|
fprintf(stderr, "ERR: %s is not in ELF format\n", execfile);
|
exit(EXIT_FAILURE);
|
exit(EXIT_FAILURE);
|
}
|
}
|
|
|
printf("Loading: %s\n", codef);
|
printf("Loading: %s\n", execfile);
|
// assert(secpp[1]->m_len = 0);
|
// assert(secpp[1]->m_len = 0);
|
for(int i=0; secpp[i]->m_len; i++) {
|
for(int i=0; secpp[i]->m_len; i++) {
|
bool valid = false;
|
bool valid = false;
|
secp= secpp[i];
|
secp= secpp[i];
|
if ((secp->m_start >= RESET_ADDRESS)
|
if ((secp->m_start >= RESET_ADDRESS)
|
&&(secp->m_start+secp->m_len
|
&&(secp->m_start+secp->m_len
|
<= SPIFLASH+FLASHWORDS))
|
<= SPIFLASH+FLASHLEN))
|
valid = true;
|
|
if ((secp->m_start >= RAMBASE)
|
|
&&(secp->m_start+secp->m_len
|
|
<= RAMBASE+MEMWORDS))
|
|
valid = true;
|
valid = true;
|
if (!valid) {
|
if (!valid) {
|
fprintf(stderr, "No such memory on board: 0x%08x - %08x\n",
|
fprintf(stderr, "No such memory on board: 0x%08x - %08x\n",
|
secp->m_start, secp->m_start+secp->m_len);
|
secp->m_start, secp->m_start+secp->m_len);
|
|
if (!ignore_missing_memory)
|
exit(EXIT_FAILURE);
|
exit(EXIT_FAILURE);
|
}
|
}
|
}
|
}
|
|
|
unsigned startaddr = RESET_ADDRESS, codelen = 0;
|
unsigned startaddr = RESET_ADDRESS, codelen = 0;
|
for(int i=0; secpp[i]->m_len; i++) {
|
for(int i=0; secpp[i]->m_len; i++) {
|
secp = secpp[i];
|
secp = secpp[i];
|
if ((secp->m_start >= RAMBASE)
|
|
&&(secp->m_start+secp->m_len
|
unsigned start, idx, ln;
|
<= RAMBASE+MEMWORDS)) {
|
|
for(int i=0; (unsigned)i<secp->m_len; i++) {
|
start = secp->m_start;
|
if (secp->m_data[i] != 0) {
|
idx = 0;
|
fprintf(stderr, "ERR: Cannot set RAM upon bootup!\n");
|
ln = secp->m_len;
|
fprintf(stderr, "(The bootloaders just not that smart ... yet)\n");
|
if (secp->m_start < SPIFLASH) {
|
fprintf(stderr, "Attempting to set %08x - %08x\n", secp->m_start, secp->m_start+secp->m_len-1);
|
start = SPIFLASH;
|
fprintf(stderr, "%08x cannot be set to %08x\n", secp->m_start+i, secp->m_data[i]);
|
idx = SPIFLASH-secp->m_start;
|
exit(EXIT_FAILURE);
|
if (idx > secp->m_len)
|
}
|
continue;
|
}
|
ln = secp->m_len-idx;
|
} else {
|
} if (start + ln > SPIFLASH+FLASHLEN) {
|
if (secp->m_start < startaddr) {
|
if (start > SPIFLASH+FLASHLEN)
|
|
continue;
|
|
ln = SPIFLASH+FLASHLEN-start;
|
|
}
|
|
|
|
// We only ever write to the flash
|
|
if (start < startaddr) {
|
|
// Keep track of the first address in
|
|
// flash, as well as the last address
|
|
// that we will write
|
codelen += (startaddr-secp->m_start);
|
codelen += (startaddr-secp->m_start);
|
startaddr = secp->m_start;
|
startaddr = secp->m_start;
|
} if (secp->m_start+secp->m_len > startaddr+codelen) {
|
} if (start+ln > startaddr+codelen) {
|
codelen = secp->m_start+secp->m_len-startaddr;
|
codelen = secp->m_start+secp->m_len-startaddr;
|
} memcpy(&fbuf[secp->m_start-SPIFLASH],
|
} memcpy(&fbuf[start-SPIFLASH], &secp->m_data[idx], ln);
|
secp->m_data,
|
|
secp->m_len*sizeof(FPGA::BUSW));
|
|
}
|
|
}
|
}
|
if ((flash)&&(!flash->write(startaddr, codelen, &fbuf[startaddr-SPIFLASH], true))) {
|
if ((flash)&&(!flash->write(startaddr, codelen, &fbuf[startaddr-SPIFLASH], true))) {
|
fprintf(stderr, "ERR: Could not write program to flash\n");
|
fprintf(stderr, "ERR: Could not write program to flash\n");
|
exit(EXIT_FAILURE);
|
exit(EXIT_FAILURE);
|
} else if (!flash)
|
} else if (!flash)
|
printf("flash->write(%08x, %d, ... );\n", startaddr,
|
printf("flash->write(%08x, %d, ... );\n", startaddr,
|
codelen);
|
codelen);
|
if (m_fpga) m_fpga->readio(R_VERSION); // Check for bus errors
|
if (m_fpga) m_fpga->readio(R_VERSION); // Check for bus errors
|
|
|
// Now ... how shall we start this CPU?
|
// Now ... how shall we start this CPU?
|
printf("The CPU should be fully loaded, you may now start\n");
|
|
printf("it. To start the CPU, either toggle power or type\n");
|
|
printf("%% wbregs fpgagen1 0 \n");
|
|
printf("%% wbregs fpgagen2 0x0300 \n");
|
|
printf("%% wbregs fpgacmd 14 \n");
|
|
} catch(BUSERR a) {
|
} catch(BUSERR a) {
|
fprintf(stderr, "XULA-BUS error: %08x\n", a.addr);
|
fprintf(stderr, "S6-BUS error: %08x\n", a.addr);
|
exit(-2);
|
exit(-2);
|
}
|
}
|
|
|
if (m_fpga) delete m_fpga;
|
if (m_fpga) delete m_fpga;
|
|
|
return EXIT_SUCCESS;
|
return EXIT_SUCCESS;
|
}
|
}
|
|
|
|
|
