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/*
* Copyright (C) 2014, Toradex AG
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* Helpers for i.MX OTP fusing during module production
*/
#include <common.h>
#include <fuse.h>
static unsigned mfgr_fuse(void);
unsigned mfgr_fuse(void)
{
unsigned val, val6;
unsigned mac_hi, mac_lo;
uchar mac_id[6];
fuse_sense(0, 5, &val);
printf("Fuse 0, 5: %8x\n", val);
fuse_sense(0, 6, &val6);
printf("Fuse 0, 6: %8x\n", val6);
fuse_sense(4, 3, &val);
printf("Fuse 4, 3: %8x\n", val);
fuse_sense(4, 2, &val);
printf("Fuse 4, 2: %8x\n", val);
if(val6 & 0x10)
{
puts("BT_FUSE_SEL already fused, will do nothing\n");
return 1;
}
/* boot cfg */
fuse_prog(0, 5, 0x00005062);
/* BT_FUSE_SEL */
fuse_prog(0, 6, 0x00000010);
return 0;
}
int do_mfgr_fuse(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
puts("Fusing...\n");
if(!mfgr_fuse())
puts("done.\n");
else
puts("failed.\n");
return 0;
}
U_BOOT_CMD(
mfgr_fuse, 1, 0, do_mfgr_fuse,
"OTP fusing during module production\n"
"requires the environment variable ethaddr to be set\n",
""
);
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