[PATCH 1/2] ARM: i.MX: fusemap-ocotp: add sec fuses for i.MX8M

Sascha Hauer sha at pengutronix.de
Wed Oct 4 00:42:44 PDT 2023


On Mon, Oct 02, 2023 at 11:20:42AM +0200, Ahmad Fatoum wrote:
> From: Rouven Czerwinski <r.czerwinski at pengutronix.de>
> 
> For i.MX8M devices, the security config 1 fuse was moved to 0x470[25].
> Additionally, all devices except the i.MX8MQ have the DIR_BT_DIS fused
> within the factory, see [1].
> 
> [1]: https://community.nxp.com/t5/i-MX-Processors/DIR-BT-DIS-and-others/m-p/1220615/highlight/true#M168363
> 
> Signed-off-by: Rouven Czerwinski <r.czerwinski at pengutronix.de>
> Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
> ---
>  include/mach/imx/ocotp-fusemap.h | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/include/mach/imx/ocotp-fusemap.h b/include/mach/imx/ocotp-fusemap.h
> index 6ba794c16619..02ac5d8e73bb 100644
> --- a/include/mach/imx/ocotp-fusemap.h
> +++ b/include/mach/imx/ocotp-fusemap.h
> @@ -53,5 +53,9 @@
>  #define OCOTP_GP1			(OCOTP_WORD(0x660) | OCOTP_BIT(0) | OCOTP_WIDTH(32))
>  #define OCOTP_GP2			(OCOTP_WORD(0x670) | OCOTP_BIT(0) | OCOTP_WIDTH(32))
>  #define OCOTP_PAD_SETTINGS		(OCOTP_WORD(0x6d0) | OCOTP_BIT(0) | OCOTP_WIDTH(6))
> +/* i.MX8M moved the security related fuses */
> +#define MX8M_OCOTP_SEC_CONFIG_1		(OCOTP_WORD(0x470) | OCOTP_BIT(25) | OCOTP_WIDTH(1))
> +/* Only MX8MQ requires fusing of DIR_BT_DIS */
> +#define MX8MQ_OCOTP_DIR_BT_DIS		(OCOTP_WORD(0x470) | OCOTP_BIT(27) | OCOTP_WIDTH(1))

You can merge this into the patch using the defines.

Sascha

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