linux-kernel - Re: [PATCH v5] ptp: ocp: add Adva timecard support

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Message-ID: <8a6c5297-6e86-4f0d-a85e-1a93b2215d68@linux.dev>
Date: Wed, 17 Jan 2024 21:23:20 +0000
From: Vadim Fedorenko <vadim.fedorenko@...ux.dev>
To: Sagi Maimon <maimon.sagi@...il.com>, richardcochran@...il.com,
 jonathan.lemon@...il.com, vadfed@...com
Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org, kuba@...nel.org
Subject: Re: [PATCH v5] ptp: ocp: add Adva timecard support

On 17/01/2024 11:43, Sagi Maimon wrote:
> Adding support for the Adva timecard.
> The card uses different drivers to provide access to the
> firmware SPI flash (Altera based).
> Other parts of the code are the same and could be reused.
> 

Hi Sagi,

Thanks for adjusting the code. One signle still have to be
adjusted, see comments below. And this is treated as net-next
material, but net-next is closed now until merge window ends,
you will have to submit new version next week.

Please, also use '[PATCH net-next v6] ...' prefix for it.

> Signed-off-by: Sagi Maimon <maimon.sagi@...il.com>
> ---
>   Changes since version 4:
>   - alignment fix.
> 

Please, preserve changes from all previous versions for next submissions.

>   drivers/ptp/ptp_ocp.c | 302 ++++++++++++++++++++++++++++++++++++++++--
>   1 file changed, 293 insertions(+), 9 deletions(-)
> 

[ ..skip.. ]

> @@ -2603,7 +2819,44 @@ ptp_ocp_art_board_init(struct ptp_ocp *bp, struct ocp_resource *r)
>   	if (err)
>   		return err;
>   
> -	return ptp_ocp_init_clock(bp);
> +	return ptp_ocp_init_clock(bp, r->extra);
> +}
> +
> +/* ADVA specific board initializers; last "resource" registered. */
> +static int
> +ptp_ocp_adva_board_init(struct ptp_ocp *bp, struct ocp_resource *r)
> +{
> +	int err;
> +	u32 version;
> +
> +	bp->flash_start = 0xA00000;
> +	bp->eeprom_map = fb_eeprom_map;
> +	bp->sma_op = &ocp_adva_sma_op;
> +
> +	version = ioread32(&bp->image->version);
> +	/* if lower 16 bits are empty, this is the fw loader. */
> +	if ((version & 0xffff) == 0) {
> +		version = version >> 16;
> +		bp->fw_loader = true;
> +	}
> +	bp->fw_tag = 1;

Please, use fw_tag = 3 here, other tags are for other vendors.

Thanks,
Vadim

> +	bp->fw_version = version & 0xffff;
> +	bp->fw_cap = OCP_CAP_BASIC | OCP_CAP_SIGNAL | OCP_CAP_FREQ;
> +
> +	ptp_ocp_tod_init(bp);
> +	ptp_ocp_nmea_out_init(bp);
> +	ptp_ocp_signal_init(bp);
> +