[PATCH v7 2/2] nvmem: imx-ocotp-ele: Support accessing controller for i.MX9

[Christophe JAILLET]

Le 02/02/2025 à 01:49, Peng Fan (OSS) a écrit :
> From: Peng Fan <peng.fan-3arQi8VN3Tc at public.gmane.org>
> 
> i.MX9 OCOTP supports a specific peripheral or function being fused
> which means disabled, so
>   - Introduce ocotp_access_gates to be container of efuse gate info
>   - Iterate all nodes to check accessing permission. If not
>     allowed to be accessed, detach the node
...

> +struct access_gate {
> +	u32 word;
> +	u32 mask;
> +};
> +
> +struct ocotp_access_gates {
> +	u32 num_words;
> +	u32 words[OCOTP_MAX_NUM_GATE_WORDS];
> +	u32 num_gates;
> +	struct access_gate *gates;

Could be const.

> +};
> +
>   struct imx_ocotp_priv {
>   	struct device *dev;
>   	void __iomem *base;

...

> +
> +	return imx_ele_ocotp_access_control(priv);
>   }
>   
> +struct access_gate imx93_access_gate[] = {

Could be static const.

> +		[IMX93_OCOTP_NPU_GATE]		= { .word = 19, .mask = BIT(13) },
> +		[IMX93_OCOTP_A550_GATE]		= { .word = 19, .mask = BIT(14) },
> +		[IMX93_OCOTP_A551_GATE]		= { .word = 19, .mask = BIT(15) },

...

> @@ -183,7 +308,53 @@ static const struct ocotp_devtype_data imx93_ocotp_data = {
>   	},
>   };
>   
> +struct access_gate imx95_access_gate[] = {

Could be static const.

> +		[IMX95_OCOTP_CANFD1_GATE]	= { .word = 17, .mask = BIT(20) },
> +		[IMX95_OCOTP_CANFD2_GATE]	= { .word = 17, .mask = BIT(21) },
> +		[IMX95_OCOTP_CANFD3_GATE]	= { .word = 17, .mask = BIT(22) },

...

CJ