netdev - [PATCH net-next 1/7] net: sparx5: do some preparation work

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Message-ID: <20241106-sparx5-lan969x-switch-driver-4-v1-1-f7f7316436bd@microchip.com>
Date: Wed, 6 Nov 2024 20:16:39 +0100
From: Daniel Machon <daniel.machon@...rochip.com>
To: <UNGLinuxDriver@...rochip.com>, Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, "Lars
 Povlsen" <lars.povlsen@...rochip.com>, Steen Hegelund
	<Steen.Hegelund@...rochip.com>, Horatiu Vultur
	<horatiu.vultur@...rochip.com>, Russell King <linux@...linux.org.uk>,
	<jacob.e.keller@...el.com>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH net-next 1/7] net: sparx5: do some preparation work

The sparx5_port_init() does initial configuration of a variety of
different features and options for each port. Some are shared for all
types of devices, some are not. As it is now, common configuration is
done after configuration of low-speed devices. This will not work when
adding RGMII support in a subsequent patch.

In preparation for lan969x RGMII support, move a block of code, that
configures 2g5 devices, down. This ensures that the configuration common
to all devices is done before configuration of 2g5, 5g, 10g and 25g
devices.

Also, expose the two symbols: SPX5_ETYPE_TAG_C and SPX5_ETYPE_TAG_S,
which will be needed by the lan969x RGMII configuration in a subsequent
patch.

Reviewed-by: Steen Hegelund <Steen.Hegelund@...rochip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@...rochip.com>
Signed-off-by: Daniel Machon <daniel.machon@...rochip.com>
---
 .../net/ethernet/microchip/sparx5/sparx5_main.h    |  3 ++
 .../net/ethernet/microchip/sparx5/sparx5_port.c    | 39 ++++++++++------------
 2 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
index 146bdc938adc..91ae383a5555 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h
@@ -134,6 +134,9 @@ enum sparx5_feature {
 
 #define SPARX5_MAX_PTP_ID	512
 
+#define SPX5_ETYPE_TAG_C     0x8100
+#define SPX5_ETYPE_TAG_S     0x88a8
+
 struct sparx5;
 
 struct sparx5_calendar_data {
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c
index 1401761c6251..bb04c2ccf112 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c
@@ -12,9 +12,6 @@
 #include "sparx5_main.h"
 #include "sparx5_port.h"
 
-#define SPX5_ETYPE_TAG_C     0x8100
-#define SPX5_ETYPE_TAG_S     0x88a8
-
 #define SPX5_WAIT_US         1000
 #define SPX5_WAIT_MAX_US     2000
 
@@ -1067,24 +1064,6 @@ int sparx5_port_init(struct sparx5 *sparx5,
 	if (err)
 		return err;
 
-	/* Configure MAC vlan awareness */
-	err = sparx5_port_max_tags_set(sparx5, port);
-	if (err)
-		return err;
-
-	/* Set Max Length */
-	spx5_rmw(DEV2G5_MAC_MAXLEN_CFG_MAX_LEN_SET(ETH_MAXLEN),
-		 DEV2G5_MAC_MAXLEN_CFG_MAX_LEN,
-		 sparx5,
-		 DEV2G5_MAC_MAXLEN_CFG(port->portno));
-
-	/* 1G/2G5: Signal Detect configuration */
-	spx5_wr(DEV2G5_PCS1G_SD_CFG_SD_POL_SET(sd_pol) |
-		DEV2G5_PCS1G_SD_CFG_SD_SEL_SET(sd_sel) |
-		DEV2G5_PCS1G_SD_CFG_SD_ENA_SET(sd_ena),
-		sparx5,
-		DEV2G5_PCS1G_SD_CFG(port->portno));
-
 	/* Set Pause WM hysteresis */
 	spx5_rmw(QSYS_PAUSE_CFG_PAUSE_START_SET(pause_start) |
 		 QSYS_PAUSE_CFG_PAUSE_STOP_SET(pause_stop) |
@@ -1108,6 +1087,24 @@ int sparx5_port_init(struct sparx5 *sparx5,
 		 ANA_CL_FILTER_CTRL_FILTER_SMAC_MC_DIS,
 		 sparx5, ANA_CL_FILTER_CTRL(port->portno));
 
+	/* Configure MAC vlan awareness */
+	err = sparx5_port_max_tags_set(sparx5, port);
+	if (err)
+		return err;
+
+	/* Set Max Length */
+	spx5_rmw(DEV2G5_MAC_MAXLEN_CFG_MAX_LEN_SET(ETH_MAXLEN),
+		 DEV2G5_MAC_MAXLEN_CFG_MAX_LEN,
+		 sparx5,
+		 DEV2G5_MAC_MAXLEN_CFG(port->portno));
+
+	/* 1G/2G5: Signal Detect configuration */
+	spx5_wr(DEV2G5_PCS1G_SD_CFG_SD_POL_SET(sd_pol) |
+		DEV2G5_PCS1G_SD_CFG_SD_SEL_SET(sd_sel) |
+		DEV2G5_PCS1G_SD_CFG_SD_ENA_SET(sd_ena),
+		sparx5,
+		DEV2G5_PCS1G_SD_CFG(port->portno));
+
 	if (conf->portmode == PHY_INTERFACE_MODE_QSGMII ||
 	    conf->portmode == PHY_INTERFACE_MODE_SGMII) {
 		err = sparx5_serdes_set(sparx5, port, conf);

-- 
2.34.1