Subject: Re: [RFC v1 net-next 2/7] mfd: ocelot: add ocelot-serdes capability

From: Lee Jones <[email-masked]>
Date: Fri, 3 Mar 2023 10:48:07 +0000

On Wed, 15 Feb 2023, Colin Foster wrote:

> Add support for the Ocelot SERDES module to support functionality of all
> non-internal phy ports.

Looks non-controversial.

Please provide some explanation of what SERDES means / is.
 
> Signed-off-by: Colin Foster <[email-masked]>
> ---
>  drivers/mfd/ocelot-core.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)

I'd expect this to go in via MFD once it comes out of RFC.

> diff --git a/drivers/mfd/ocelot-core.c b/drivers/mfd/ocelot-core.c
> index b0ff05c1759f..c2224f8a16c0 100644
> --- a/drivers/mfd/ocelot-core.c
> +++ b/drivers/mfd/ocelot-core.c
> @@ -45,6 +45,9 @@
>  #define VSC7512_SIO_CTRL_RES_START	0x710700f8
>  #define VSC7512_SIO_CTRL_RES_SIZE	0x00000100
>  
> +#define VSC7512_HSIO_RES_START		0x710d0000
> +#define VSC7512_HSIO_RES_SIZE		0x00000128
> +
>  #define VSC7512_ANA_RES_START		0x71880000
>  #define VSC7512_ANA_RES_SIZE		0x00010000
>  
> @@ -129,8 +132,13 @@ static const struct resource vsc7512_sgpio_resources[] = {
>  	DEFINE_RES_REG_NAMED(VSC7512_SIO_CTRL_RES_START, VSC7512_SIO_CTRL_RES_SIZE, "gcb_sio"),
>  };
>  
> +static const struct resource vsc7512_serdes_resources[] = {
> +	DEFINE_RES_REG_NAMED(VSC7512_HSIO_RES_START, VSC7512_HSIO_RES_SIZE, "hsio"),
> +};
> +
>  static const struct resource vsc7512_switch_resources[] = {
>  	DEFINE_RES_REG_NAMED(VSC7512_ANA_RES_START, VSC7512_ANA_RES_SIZE, "ana"),
> +	DEFINE_RES_REG_NAMED(VSC7512_HSIO_RES_START, VSC7512_HSIO_RES_SIZE, "hsio"),
>  	DEFINE_RES_REG_NAMED(VSC7512_QS_RES_START, VSC7512_QS_RES_SIZE, "qs"),
>  	DEFINE_RES_REG_NAMED(VSC7512_QSYS_RES_START, VSC7512_QSYS_RES_SIZE, "qsys"),
>  	DEFINE_RES_REG_NAMED(VSC7512_REW_RES_START, VSC7512_REW_RES_SIZE, "rew"),
> @@ -176,6 +184,11 @@ static const struct mfd_cell vsc7512_devs[] = {
>  		.use_of_reg = true,
>  		.num_resources = ARRAY_SIZE(vsc7512_miim1_resources),
>  		.resources = vsc7512_miim1_resources,
> +	}, {
> +		.name = "ocelot-serdes",
> +		.of_compatible = "mscc,vsc7514-serdes",
> +		.num_resources = ARRAY_SIZE(vsc7512_serdes_resources),
> +		.resources = vsc7512_serdes_resources,
>  	}, {
>  		.name = "ocelot-switch",
>  		.of_compatible = "mscc,vsc7512-switch",
> -- 
> 2.25.1
> 

-- 
Lee Jones [李琼斯]