board/qca/arm/common/cmd_blowsecfuse.c

/*
 * Copyright (c) 2015-2017 The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * 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.
 */

#include <common.h>
#include <command.h>
#include <image.h>
#include <nand.h>
#include <errno.h>
#include <asm/arch-qca-common/smem.h>
#include <asm/arch-qca-common/scm.h>
#include <linux/mtd/ubi.h>
#include <part.h>
#include <asm/arch-qca-common/qca_common.h>

#define FUSEPROV_SUCCESS		0x0
#define FUSEPROV_INVALID_HASH		0x09
#define FUSEPROV_SECDAT_LOCK_BLOWN	0xB
#define TZ_BLOW_FUSE_SECDAT		0x20

int do_fuseipq(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
	int ret;
	uint32_t fuse_status = 0;
	struct fuse_blow {
		uint32_t address;
		uint32_t status;
	} fuseip;

	if (argc != 2) {
		printf("No Arguments provided\n");
		printf("Command format: fuseipq <address>\n");
		return 1;
	}

	fuseip.address = simple_strtoul(argv[1], NULL, 16);
	fuseip.status = (uint32_t)&fuse_status;

	ret = qca_scm_fuseipq(SCM_SVC_FUSE, TZ_BLOW_FUSE_SECDAT,
			&fuseip, sizeof(fuseip));

	if (ret || fuse_status)
		printf("%s: Error in QFPROM write (%d, %d)\n",
			__func__, ret, fuse_status);

	if (fuse_status == FUSEPROV_SECDAT_LOCK_BLOWN)
		printf("Fuse already blown\n");
	else if (fuse_status == FUSEPROV_INVALID_HASH)
		printf("Invalid sec.dat\n");
	else if (fuse_status  != FUSEPROV_SUCCESS)
		printf("Failed to Blow fuses");
	else
		printf("Blow Success\n");

	return 0;
}

U_BOOT_CMD(fuseipq, 2, 0, do_fuseipq,
		"fuse QFPROM registers from memory\n",
		"fuseipq [address]  - Load fuse(s) and blows in the qfprom\n");