From: Rouven Czerwinski <[email protected]> The i.MX8M family of processors moved the SEC_CONFIG_1 fuse to a different location. Extend the hab driver with the new location and take care of the DIR_BT_DIS fuse which only needs to be burned on i.MX8MQ.
Signed-off-by: Rouven Czerwinski <[email protected]> Signed-off-by: Ahmad Fatoum <[email protected]> --- drivers/hab/hab.c | 32 +++++++++++++++++++++++++++----- 1 file changed, 27 insertions(+), 5 deletions(-) diff --git a/drivers/hab/hab.c b/drivers/hab/hab.c index aa848979b467..ee402352f243 100644 --- a/drivers/hab/hab.c +++ b/drivers/hab/hab.c @@ -150,23 +150,45 @@ static int imx_hab_permanent_write_enable_ocotp(int enable) return imx_ocotp_permanent_write(enable); } +static uint32_t get_sec_config_fuse(void) { + if (cpu_is_mx6()) { + return OCOTP_SEC_CONFIG_1; + } else { + return MX8M_OCOTP_SEC_CONFIG_1; + } +} + static int imx_hab_lockdown_device_ocotp(void) { int ret; + uint32_t dis_fuse; + uint32_t sec_fuse; - ret = imx_ocotp_write_field(OCOTP_DIR_BT_DIS, 1); - if (ret < 0) - return ret; + if (cpu_is_mx6() || cpu_is_mx8mq()) { + if (cpu_is_mx6()) { + dis_fuse = OCOTP_DIR_BT_DIS; + } else { + dis_fuse = MX8MQ_OCOTP_DIR_BT_DIS; + } + ret = imx_ocotp_write_field(dis_fuse, 1); + if (ret < 0) + return ret; + } - return imx_ocotp_write_field(OCOTP_SEC_CONFIG_1, 1); + sec_fuse = get_sec_config_fuse(); + + return imx_ocotp_write_field(sec_fuse, 1); } static int imx_hab_device_locked_down_ocotp(void) { int ret; + uint32_t fuse; unsigned int v; - ret = imx_ocotp_read_field(OCOTP_SEC_CONFIG_1, &v); + fuse = get_sec_config_fuse(); + + ret = imx_ocotp_read_field(fuse, &v); if (ret < 0) return ret; -- 2.39.2
