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From: Biju Das <biju.das.jz@bp.renesas.com>
To: "David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>
Cc: Biju Das <biju.das.jz@bp.renesas.com>,
	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: [PATCH 05/10] ravb: Initialize GbEthernet DMAC
Date: Fri,  1 Oct 2021 16:06:31 +0100	[thread overview]
Message-ID: <20211001150636.7500-6-biju.das.jz@bp.renesas.com> (raw)
In-Reply-To: <20211001150636.7500-1-biju.das.jz@bp.renesas.com>

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.
 * 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.h b/drivers/net/ethernet/renesas/ravb.h
index f6398fdcead2..9cd3a15743b4 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -81,6 +81,7 @@ enum ravb_reg {
 	RQC3	= 0x00A0,
 	RQC4	= 0x00A4,
 	RPC	= 0x00B0,
+	RTC	= 0x00B4,	/* R-Car Gen3 and RZ/G2L only */
 	UFCW	= 0x00BC,
 	UFCS	= 0x00C0,
 	UFCV0	= 0x00C4,
@@ -193,7 +194,7 @@ enum ravb_reg {
 	GECMR	= 0x05b0,
 	MAHR	= 0x05c0,
 	MALR	= 0x05c8,
-	TROCR	= 0x0700,	/* R-Car Gen3 only */
+	TROCR	= 0x0700,	/* R-Car Gen3 and RZ/G2L only */
 	CEFCR	= 0x0740,
 	FRECR	= 0x0748,
 	TSFRCR	= 0x0750,
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 */
+	ravb_write(ndev, 0x60000000, RCR);
+
+	/* Set Max Frame Length (RTC) */
+	ravb_write(ndev, 0x7ffc0000 | GBETH_RX_BUFF_MAX, RTC);
+
+	/* Set FIFO size */
+	ravb_write(ndev, 0x00222200, TGC);
+
+	ravb_write(ndev, 0, TCCR);
+
+	/* Frame receive */
+	ravb_write(ndev, RIC0_FRE0, RIC0);
+	/* Disable FIFO full warning */
+	ravb_write(ndev, 0x0, RIC1);
+	/* Receive FIFO full error, descriptor empty */
+	ravb_write(ndev, RIC2_QFE0 | RIC2_RFFE, RIC2);
+
+	ravb_write(ndev, TIC_FTE0, TIC);
+
 	return 0;
 }
 
-- 
2.17.1


  parent reply	other threads:[~2021-10-01 15:07 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 ` Biju Das [this message]
2021-10-04 12:40   ` [PATCH 05/10] ravb: Initialize GbEthernet DMAC Sergey Shtylyov
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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