[5.10.y-cip,36/61] ravb: Initialize GbEthernet DMAC

Message ID	20220110122331.24114-37-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive)
State	Accepted
Delegated to:	Pavel Machek
Headers	show Return-Path: <prabhakar.mahadev-lad.rj@bp.renesas.com> ip: 210.160.252.172, mailfrom: prabhakar.mahadev-lad.rj@bp.renesas.com) From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>, Pavel Machek <pavel@denx.de> Cc: Biju Das <biju.das.jz@bp.renesas.com> Subject: [PATCH 5.10.y-cip 36/61] ravb: Initialize GbEthernet DMAC Date: Mon, 10 Jan 2022 12:23:06 +0000 Message-Id: <20220110122331.24114-37-prabhakar.mahadev-lad.rj@bp.renesas.com> In-Reply-To: <20220110122331.24114-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20220110122331.24114-1-prabhakar.mahadev-lad.rj@bp.renesas.com>
Series	Add Ethernet support to RZ/G2L \| expand [5.10.y-cip,00/61] Add Ethernet support to RZ/G2L [5.10.y-cip,01/61] dt-bindings: net: renesas,etheravb: Add additional clocks [5.10.y-cip,02/61] dt-bindings: net: renesas,etheravb: Fix optional second clock name [5.10.y-cip,03/61] dt-bindings: net: renesas,etheravb: Document Gigabit Ethernet IP [5.10.y-cip,04/61] dt-bindings: net: renesas,etheravb: Drop "int_" prefix and "_n" suffix from inte… [5.10.y-cip,05/61] net: ethernet: ravb: Enable optional refclk [5.10.y-cip,06/61] net: ethernet: ravb: Fix release of refclk [5.10.y-cip,07/61] net: ethernet: ravb: Use devm_platform_get_and_ioremap_resource() [5.10.y-cip,08/61] ravb: Fix a typo in comment [5.10.y-cip,09/61] ravb: Remove checks for unsupported internal delay modes [5.10.y-cip,10/61] ravb: Use unsigned int for num_tx_desc variable in struct ravb_private [5.10.y-cip,11/61] ravb: Add struct ravb_hw_info to driver data [5.10.y-cip,12/61] ravb: Add aligned_tx to struct ravb_hw_info [5.10.y-cip,13/61] ravb: Add max_rx_len to struct ravb_hw_info [5.10.y-cip,14/61] ravb: Add stats_len to struct ravb_hw_info [5.10.y-cip,15/61] ravb: Add gstrings_stats and gstrings_size to struct ravb_hw_info [5.10.y-cip,16/61] ravb: Add net_features and net_hw_features to struct ravb_hw_info [5.10.y-cip,17/61] ravb: Add internal delay hw feature to struct ravb_hw_info [5.10.y-cip,18/61] ravb: Add tx_counters to struct ravb_hw_info [5.10.y-cip,19/61] ravb: Remove the macros NUM_TX_DESC_GEN[23] [5.10.y-cip,20/61] ravb: Add multi_irq to struct ravb_hw_info [5.10.y-cip,21/61] ravb: Add no_ptp_cfg_active to struct ravb_hw_info [5.10.y-cip,22/61] ravb: Add ptp_cfg_active to struct ravb_hw_info [5.10.y-cip,23/61] ravb: Factorise ravb_ring_free function [5.10.y-cip,24/61] ravb: Factorise ravb_ring_format function [5.10.y-cip,25/61] ravb: Factorise ravb_ring_init function [5.10.y-cip,26/61] ravb: Factorise ravb_rx function [5.10.y-cip,27/61] ravb: Factorise ravb_adjust_link function [5.10.y-cip,28/61] ravb: Factorise ravb_set_features [5.10.y-cip,29/61] ravb: Factorise ravb_dmac_init function [5.10.y-cip,30/61] ravb: Factorise ravb_emac_init function [5.10.y-cip,31/61] ravb: Add reset support [5.10.y-cip,32/61] ravb: Rename "ravb_set_features_rx_csum" function to "ravb_set_features_rcar" [5.10.y-cip,33/61] ravb: Rename "no_ptp_cfg_active" and "ptp_cfg_active" variables [5.10.y-cip,34/61] ravb: Add nc_queue to struct ravb_hw_info [5.10.y-cip,35/61] ravb: Add support for RZ/G2L SoC [5.10.y-cip,36/61] ravb: Initialize GbEthernet DMAC [5.10.y-cip,37/61] ravb: remove APSR_DM [5.10.y-cip,38/61] ravb: Exclude gPTP feature support for RZ/G2L [5.10.y-cip,39/61] ravb: Add tsrq to struct ravb_hw_info [5.10.y-cip,40/61] ravb: Add magic_pkt to struct ravb_hw_info [5.10.y-cip,41/61] ravb: Add half_duplex to struct ravb_hw_info [5.10.y-cip,42/61] ravb: update "undocumented" annotations [5.10.y-cip,43/61] ravb: Remove extra TAB [5.10.y-cip,44/61] ravb: Initialize GbEthernet E-MAC [5.10.y-cip,45/61] ravb: Add rx_max_buf_size to struct ravb_hw_info [5.10.y-cip,46/61] ravb: Use ALIGN macro for max_rx_len [5.10.y-cip,47/61] ravb: Fillup ravb_alloc_rx_desc_gbeth() stub [5.10.y-cip,48/61] ravb: Fillup ravb_rx_ring_free_gbeth() stub [5.10.y-cip,49/61] ravb: Fillup ravb_rx_ring_format_gbeth() stub [5.10.y-cip,50/61] ravb: Fillup ravb_rx_gbeth() stub [5.10.y-cip,51/61] ravb: Add carrier_counters to struct ravb_hw_info [5.10.y-cip,52/61] ravb: Add support to retrieve stats for GbEthernet [5.10.y-cip,53/61] ravb: Rename "tsrq" variable [5.10.y-cip,54/61] ravb: Optimize ravb_emac_init_gbeth function [5.10.y-cip,55/61] ravb: Rename "nc_queue" feature bit [5.10.y-cip,56/61] ravb: Update ravb_emac_init_gbeth() [5.10.y-cip,57/61] ravb: Fix typo AVB->DMAC [5.10.y-cip,58/61] clk: renesas: r9a07g044: Add ethernet clock sources [5.10.y-cip,59/61] clk: renesas: r9a07g044: Add GbEthernet clock/reset [5.10.y-cip,60/61] arm64: dts: renesas: r9a07g044: Add GbEthernet nodes [5.10.y-cip,61/61] arm64: dts: renesas: rzg2l-smarc-som: Enable Ethernet

Message ID

20220110122331.24114-37-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive)

State

Accepted

Delegated to:

Pavel Machek

Headers

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
To: cip-dev@lists.cip-project.org,
	Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>,
	Pavel Machek <pavel@denx.de>
Cc: Biju Das <biju.das.jz@bp.renesas.com>
Subject: [PATCH 5.10.y-cip 36/61] ravb: Initialize GbEthernet DMAC
Date: Mon, 10 Jan 2022 12:23:06 +0000
Message-Id: <20220110122331.24114-37-prabhakar.mahadev-lad.rj@bp.renesas.com>
In-Reply-To: <20220110122331.24114-1-prabhakar.mahadev-lad.rj@bp.renesas.com>
References: <20220110122331.24114-1-prabhakar.mahadev-lad.rj@bp.renesas.com>

Series

Add Ethernet support to RZ/G2L | expand

Commit Message

Lad Prabhakar Jan. 10, 2022, 12:23 p.m. UTC

From: Biju Das <biju.das.jz@bp.renesas.com>

commit 660e3d95e21a929d8a718dcbefe5a63bc4418412 upstream.

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 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 b185f1bb351d..f122ff413469 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 f4211afe5e68..0cc969cf523a 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -487,7 +487,35 @@  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;
 }

[5.10.y-cip,36/61] ravb: Initialize GbEthernet DMAC

Commit Message

Patch