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From: Sergey Shtylyov <s.shtylyov@omp.ru>
To: Biju Das <biju.das.jz@bp.renesas.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>
Cc: Sergei Shtylyov <sergei.shtylyov@gmail.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Sergey Shtylyov <s.shtylyov@omprussia.ru>,
	"Adam Ford" <aford173@gmail.com>, Andrew Lunn <andrew@lunn.ch>,
	Yuusuke Ashizuka <ashiduka@fujitsu.com>,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
	<netdev@vger.kernel.org>, <linux-renesas-soc@vger.kernel.org>,
	Chris Paterson <Chris.Paterson2@renesas.com>,
	Biju Das <biju.das@bp.renesas.com>,
	"Prabhakar Mahadev Lad" <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: Re: [PATCH 05/10] ravb: Initialize GbEthernet DMAC
Date: Mon, 4 Oct 2021 15:40:03 +0300	[thread overview]
Message-ID: <58ca2e47-9c25-c394-51e5-067ebaa66538@omp.ru> (raw)
In-Reply-To: <20211001150636.7500-6-biju.das.jz@bp.renesas.com>

Hello!

On 10/1/21 6:06 PM, Biju Das wrote:

> Initialize GbEthernet DMAC found on RZ/G2L SoC.
> 
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
> RFC->v1:
>  * Removed RIC3 initialization from DMAC init, as it is 
>    same as reset value.

   I'm not sure we do a reset everytime...

>  * moved stubs function to earlier patches.
>  * renamed "rgeth" with "gbeth"
> ---
>  drivers/net/ethernet/renesas/ravb.h      |  3 ++-
>  drivers/net/ethernet/renesas/ravb_main.c | 30 +++++++++++++++++++++++-
>  2 files changed, 31 insertions(+), 2 deletions(-)
> 
[...]
> diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
> index dc817b4d95a1..5790a9332e7b 100644
> --- a/drivers/net/ethernet/renesas/ravb_main.c
> +++ b/drivers/net/ethernet/renesas/ravb_main.c
> @@ -489,7 +489,35 @@ static void ravb_emac_init(struct net_device *ndev)
>  
>  static int ravb_dmac_init_gbeth(struct net_device *ndev)
>  {
> -	/* Place holder */
> +	int error;
> +
> +	error = ravb_ring_init(ndev, RAVB_BE);
> +	if (error)
> +		return error;
> +
> +	/* Descriptor format */
> +	ravb_ring_format(ndev, RAVB_BE);
> +
> +	/* Set AVB RX */

   AVB? We don't have it, do we?

> +	ravb_write(ndev, 0x60000000, RCR);

   Not even RCR.EFFS? And what do bits 29..30 mean?

[...]
> +	/* Set FIFO size */
> +	ravb_write(ndev, 0x00222200, TGC);

   Do TBD<n> (other than TBD0) fields even exist?

[...]

MBR, Sergey

  reply	other threads:[~2021-10-04 12:40 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-01 15:06 [PATCH 00/10] Add Gigabit Ethernet driver support Biju Das
2021-10-01 15:06 ` [PATCH 01/10] ravb: Rename "ravb_set_features_rx_csum" function to "ravb_set_features_rcar" Biju Das
2021-10-01 15:06 ` [PATCH 02/10] ravb: Rename "no_ptp_cfg_active" and "ptp_cfg_active" variables Biju Das
2021-10-01 20:43   ` Sergey Shtylyov
2021-10-02  7:53     ` Biju Das
2021-10-02 18:19       ` Sergey Shtylyov
2021-10-03  7:05         ` Biju Das
2021-10-01 15:06 ` [PATCH 03/10] ravb: Add nc_queue to struct ravb_hw_info Biju Das
2021-10-02 18:35   ` Sergey Shtylyov
2021-10-03  6:58     ` Biju Das
2021-10-06 19:45       ` Sergei Shtylyov
2021-10-06 20:12         ` Biju Das
2021-10-01 15:06 ` [PATCH 04/10] ravb: Add support for RZ/G2L SoC Biju Das
2021-10-02 19:43   ` Sergey Shtylyov
2021-10-03  6:51     ` Biju Das
2021-10-04  7:10       ` Geert Uytterhoeven
2021-10-04  7:49         ` Biju Das
2021-10-04 13:28       ` Biju Das
2021-10-01 15:06 ` [PATCH 05/10] ravb: Initialize GbEthernet DMAC Biju Das
2021-10-04 12:40   ` Sergey Shtylyov [this message]
2021-10-04 13:12     ` Biju Das
2021-10-04 15:50       ` Sergei Shtylyov
2021-10-04 18:42         ` Biju Das
2021-10-01 15:06 ` [PATCH 06/10] ravb: Exclude gPTP feature support for RZ/G2L Biju Das
2021-10-01 15:06 ` [PATCH 07/10] ravb: Add tsrq to struct ravb_hw_info Biju Das
2021-10-04 18:00   ` Sergey Shtylyov
2021-10-04 18:37     ` Sergei Shtylyov
2021-10-04 18:47       ` Biju Das
2021-10-04 18:54         ` Sergey Shtylyov
2021-10-04 19:28           ` Biju Das
2021-10-01 15:06 ` [PATCH 08/10] ravb: Add magic_pkt " Biju Das
2021-10-01 15:06 ` [PATCH 09/10] ravb: Add half_duplex " Biju Das
2021-10-01 15:06 ` [PATCH 10/10] ravb: Initialize GbEthernet E-MAC Biju Das
2021-10-04 18:55   ` Sergey Shtylyov
2021-10-04 19:23     ` Biju Das
2021-10-04 19:27       ` Sergey Shtylyov
2021-10-04 19:33         ` Biju Das
2021-10-02 13:00 ` [PATCH 00/10] Add Gigabit Ethernet driver support patchwork-bot+netdevbpf

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