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fc-loadtool flash ID check: change of reset after the check logic This change only affects those flash configurations that have ID checks enabled. The logic for resetting the flash after the ID check has been changed as follows: 1) If the check fails, we return without attempting to reset the flash. 2) If the check is successful, we reset the flash using the configured method (could be AMD or Intel or Intel W30) instead of always doing an AMD flash reset as the original code did.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 27 May 2019 19:58:01 +0000
parents e7502631a0f9
children 0dd2c87c1b63
line wrap: on
line source

/*
 * Miscellaneous flash commands (fc-loadtool) are implemented here
 */

#include <sys/types.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>
#include "flash.h"

extern struct flash_bank_info flash_bank_info[2];

flashcmd_blankchk(argc, argv, bank)
	char **argv;
{
	struct flash_bank_info *bi;
	u_long offset, len;
	char *strtoul_endp;
	char *targv[4], targ_start[10], targ_len[10];

	if (argc != 4) {
inv:		fprintf(stderr, "usage: %s %s hex-start-offset hex-length\n",
			argv[0], argv[1]);
		return(-1);
	}
	offset = strtoul(argv[2], &strtoul_endp, 16);
	if (*strtoul_endp)
		goto inv;
	if (flash_get_cfi(bank) < 0)
		return(-1);
	bi = flash_bank_info + bank;
	if (offset >= bi->geom->total_size) {
		fprintf(stderr,
		"error: specified offset exceeds flash bank size (0x%lx)\n",
			(u_long) bi->geom->total_size);
		return(-1);
	}
	len = strtoul(argv[3], &strtoul_endp, 16);
	if (*strtoul_endp)
		goto inv;
	if (len > bi->geom->total_size - offset) {
		fprintf(stderr,
	"error: specified offset+length exceed flash bank size (0x%lx)\n",
			(u_long) bi->geom->total_size);
		return(-1);
	}
	/* reset flash to read mode */
	if (bi->ops->reset_cmd(bi) < 0)
		return(-1);
	sprintf(targ_start, "%lx", (u_long) bi->base_addr + offset);
	sprintf(targ_len, "%lx", len);
	targv[0] = "blankchk";
	targv[1] = targ_start;
	targv[2] = targ_len;
	targv[3] = 0;
	tpinterf_make_cmd(targv);
	if (tpinterf_send_cmd() < 0)
		return(-1);
	return tpinterf_pass_output(10);	/* 10 s timeout */
}

flashcmd_dump2file(argc, argv, bank)
	char **argv;
{
	struct flash_bank_info *bi;
	u_long offset, dumplen, maxlen;
	char *strtoul_endp;
	int format;

	if (argc < 3 || argc > 5) {
inv:		fprintf(stderr, "usage: %s %s outfile [offset [length]]\n",
			argv[0], argv[1]);
		return(-1);
	}
	if (flash_get_cfi(bank) < 0)
		return(-1);
	bi = flash_bank_info + bank;
	if (argc >= 4) {
		offset = strtoul(argv[3], &strtoul_endp, 16);
		if (*strtoul_endp)
			goto inv;
		if (offset >= bi->geom->total_size) {
			fprintf(stderr,
		"error: specified offset exceeds flash bank size (0x%lx)\n",
				(u_long) bi->geom->total_size);
			return(-1);
		}
	} else
		offset = 0;
	maxlen = bi->geom->total_size - offset;
	if (argc >= 5) {
		dumplen = strtoul(argv[4], &strtoul_endp, 16);
		if (*strtoul_endp)
			goto inv;
		if (dumplen > maxlen) {
			fprintf(stderr,
	"error: specified offset+length exceed flash bank size (0x%lx)\n",
				(u_long) bi->geom->total_size);
			return(-1);
		}
	} else
		dumplen = maxlen;
	switch (argv[1][5]) {
	case 'b':
		format = 0;
		break;
	case 's':
		format = 1;
		break;
	default:
		fprintf(stderr,
			"internal bug: bad format in flashcmd_dump2file()\n");
		return(-1);
	}
	/* reset flash to read mode */
	if (bi->ops->reset_cmd(bi) < 0)
		return(-1);
	return loadtool_memdump(bi->base_addr + offset, dumplen, argv[2],
				format);
}

flashcmd_erase(argc, argv, bank)
	char **argv;
{
	struct flash_bank_info *bi;
	u_long offset, len;
	char *strtoul_endp;
	struct sector_info *startsec, *endsec, *sp;
	int stat;

	if (argc != 4) {
inv:		fprintf(stderr, "usage: %s %s hex-start-offset hex-length\n",
			argv[0], argv[1]);
		return(-1);
	}
	offset = strtoul(argv[2], &strtoul_endp, 16);
	if (*strtoul_endp)
		goto inv;
	if (flash_get_cfi(bank) < 0)
		return(-1);
	bi = flash_bank_info + bank;
	if (offset >= bi->geom->total_size) {
		fprintf(stderr,
		"error: specified offset exceeds flash bank size (0x%lx)\n",
			(u_long) bi->geom->total_size);
		return(-1);
	}
	len = strtoul(argv[3], &strtoul_endp, 16);
	if (*strtoul_endp)
		goto inv;
	if (len > bi->geom->total_size - offset) {
		fprintf(stderr,
	"error: specified offset+length exceed flash bank size (0x%lx)\n",
			(u_long) bi->geom->total_size);
		return(-1);
	}
	if (!len) {
		printf("Zero length specified - nothing to do!\n");
		return(0);
	}
	/* now enforce sector alignment for both offset and length */
	if (get_flash_sector_table(bank) < 0)
		return(-1);
	if (get_flash_sector_range(bi, offset, len, &startsec, &endsec) < 0)
		return(-1);
	stat = flash_id_check(bank, 0);
	if (stat)
		return(stat);
	printf("Erasing %d sector(s)\n", endsec - startsec);
	for (sp = startsec; sp < endsec; sp++) {
		stat = bi->ops->erase_sector(bi, sp);
		if (stat)
			return(stat);
		putchar('.');
		fflush(stdout);
	}
	putchar('\n');
	return(0);
}

flashcmd_quickprog(argc, argv, bank)
	char **argv;
{
	struct flash_bank_info *bi;
	char *targv[4], targ_base[10];
	int stat;

	if (argc != 4) {
		fprintf(stderr, "usage: %s %s hex-offset hex-data-string\n",
			argv[0], argv[1]);
		return(-1);
	}
	if (flash_get_cfi(bank) < 0)
		return(-1);
	bi = flash_bank_info + bank;
	sprintf(targ_base, "%lx", (u_long) bi->base_addr);
	targv[0] = bi->ops->loadagent_setbase_cmd;
	targv[1] = targ_base;
	targv[2] = 0;
	tpinterf_make_cmd(targv);
	if (tpinterf_send_cmd() < 0)
		return(-1);
	stat = tpinterf_pass_output(1);
	if (stat)
		return(stat);
	targv[0] = bi->ops->loadagent_program_cmd;
	targv[1] = argv[2];
	targv[2] = argv[3];
	targv[3] = 0;
	if (tpinterf_make_cmd(targv) < 0) {
		fprintf(stderr,
			"error: unable to form AMFW/INFW target command\n");
		return(-1);
	}
	if (tpinterf_send_cmd() < 0)
		return(-1);
	return tpinterf_pass_output(1);
}

flashcmd_reset(argc, argv, bank)
	char **argv;
{
	struct flash_bank_info *bi;

	if (argc > 2) {
		fprintf(stderr, "error: too many arguments\n");
		return(-1);
	}
	if (flash_get_cfi(bank) < 0)
		return(-1);
	bi = flash_bank_info + bank;
	return bi->ops->reset_cmd(bi);
}

flashcmd_status(argc, argv, bank)
	char **argv;
{
	struct flash_bank_info *bi;

	if (argc > 2) {
		fprintf(stderr, "error: too many arguments\n");
		return(-1);
	}
	if (flash_get_cfi(bank) < 0)
		return(-1);
	bi = flash_bank_info + bank;
	return bi->ops->status_cmd(bi);
}

flashcmd_unlock(argc, argv, bank)
	char **argv;
{
	struct flash_bank_info *bi;
	u_long offset, len;
	char *strtoul_endp;
	struct sector_info *startsec, *endsec, *sp;
	int stat;

	if (flash_get_cfi(bank) < 0)
		return(-1);
	bi = flash_bank_info + bank;
	if (!bi->ops->needs_unlock) {
		fprintf(stderr,
	    "This operation is not applicable to the selected flash type\n");
		return(-1);
	}
	if (argc != 4) {
inv:		fprintf(stderr, "usage: %s %s hex-start-offset hex-length\n",
			argv[0], argv[1]);
		return(-1);
	}
	offset = strtoul(argv[2], &strtoul_endp, 16);
	if (*strtoul_endp)
		goto inv;
	if (offset >= bi->geom->total_size) {
		fprintf(stderr,
		"error: specified offset exceeds flash bank size (0x%lx)\n",
			(u_long) bi->geom->total_size);
		return(-1);
	}
	len = strtoul(argv[3], &strtoul_endp, 16);
	if (*strtoul_endp)
		goto inv;
	if (len > bi->geom->total_size - offset) {
		fprintf(stderr,
	"error: specified offset+length exceed flash bank size (0x%lx)\n",
			(u_long) bi->geom->total_size);
		return(-1);
	}
	if (!len) {
		printf("Zero length specified - nothing to do!\n");
		return(0);
	}
	/* now enforce sector alignment for both offset and length */
	if (get_flash_sector_table(bank) < 0)
		return(-1);
	if (get_flash_sector_range(bi, offset, len, &startsec, &endsec) < 0)
		return(-1);
	printf("Unlocking %d sector(s)\n", endsec - startsec);
	for (sp = startsec; sp < endsec; sp++) {
		stat = bi->ops->unlock_sector(bi, sp);
		if (stat)
			return(stat);
		putchar('.');
		fflush(stdout);
	}
	putchar('\n');
	return(0);
}