From: Max Krummenacher max.krummenacher@toradex.com
We have two commands to change the bootmode fuses: mfgr_fuse which set fuse 0/5 and 0/6 and updt_fuse which burns bit 4 of 0/5.
Before BSP 2.6 we fused in mfgr_fuse 0x5062, which boots from the user partition of the eMMC. To workaround certain hangs we moved to fastboot mode and using the first bootpartition of the eMMC requiring a fuse value of 0x5072 which could be achieved by the then added updt_fuse command. At the same time the mfgr_fuse command was changed to also fuse 0x5072, revert that second change so that one can fuse both values, one with just mfgr_fuse and the later with mfgr_fuse;updt_fuse.
Note that the mfgr_fuse command is only needed at module production time, a customer might need to use updt_fuse when upgrading an older module to be compatible with a newer image. The command is integrated into the image update scripts.
Signed-off-by: Max Krummenacher max.krummenacher@toradex.com Acked-by: Stefan Agner stefan.agner@toradex.com Acked-by: Marcel Ziswiler marcel.ziswiler@toradex.com
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Changes in v2: - Remove Colibri iMX6 change which inadvertently slipped in here.
board/toradex/apalis_imx6/do_fuse.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/board/toradex/apalis_imx6/do_fuse.c b/board/toradex/apalis_imx6/do_fuse.c index e6793e366a..22d191f52a 100644 --- a/board/toradex/apalis_imx6/do_fuse.c +++ b/board/toradex/apalis_imx6/do_fuse.c @@ -29,7 +29,7 @@ static int mfgr_fuse(void) return CMD_RET_FAILURE; } /* boot cfg */ - fuse_prog(0, 5, 0x00005072); + fuse_prog(0, 5, 0x00005062); /* BT_FUSE_SEL */ fuse_prog(0, 6, 0x00000010); return CMD_RET_SUCCESS;