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Message-Id: <20210318080143.32449-2-zajec5@gmail.com>
Date:   Thu, 18 Mar 2021 09:01:43 +0100
From:   Rafał Miłecki <zajec5@...il.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        bcm-kernel-feedback-list@...adcom.com,
        Rafał Miłecki <rafal@...ecki.pl>
Subject: [PATCH net-next V2 2/2] net: dsa: bcm_sf2: fix BCM4908 RGMII reg(s)

From: Rafał Miłecki <rafal@...ecki.pl>

BCM4908 has only 1 RGMII reg for controlling port 7.

Fixes: 73b7a6047971 ("net: dsa: bcm_sf2: support BCM4908's integrated switch")
Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>
---
 drivers/net/dsa/bcm_sf2.c      | 11 +++++++----
 drivers/net/dsa/bcm_sf2_regs.h |  1 +
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 4261a06ad050..9150038b60cb 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -36,7 +36,12 @@ static u16 bcm_sf2_reg_rgmii_cntrl(struct bcm_sf2_priv *priv, int port)
 {
 	switch (priv->type) {
 	case BCM4908_DEVICE_ID:
-		/* TODO */
+		switch (port) {
+		case 7:
+			return REG_RGMII_11_CNTRL;
+		default:
+			break;
+		}
 		break;
 	default:
 		switch (port) {
@@ -1228,9 +1233,7 @@ static const u16 bcm_sf2_4908_reg_offsets[] = {
 	[REG_PHY_REVISION]	= 0x14,
 	[REG_SPHY_CNTRL]	= 0x24,
 	[REG_CROSSBAR]		= 0xc8,
-	[REG_RGMII_0_CNTRL]	= 0xe0,
-	[REG_RGMII_1_CNTRL]	= 0xec,
-	[REG_RGMII_2_CNTRL]	= 0xf8,
+	[REG_RGMII_11_CNTRL]	= 0x014c,
 	[REG_LED_0_CNTRL]	= 0x40,
 	[REG_LED_1_CNTRL]	= 0x4c,
 	[REG_LED_2_CNTRL]	= 0x58,
diff --git a/drivers/net/dsa/bcm_sf2_regs.h b/drivers/net/dsa/bcm_sf2_regs.h
index 3d5515fe43cb..7bffc80f241f 100644
--- a/drivers/net/dsa/bcm_sf2_regs.h
+++ b/drivers/net/dsa/bcm_sf2_regs.h
@@ -21,6 +21,7 @@ enum bcm_sf2_reg_offs {
 	REG_RGMII_0_CNTRL,
 	REG_RGMII_1_CNTRL,
 	REG_RGMII_2_CNTRL,
+	REG_RGMII_11_CNTRL,
 	REG_LED_0_CNTRL,
 	REG_LED_1_CNTRL,
 	REG_LED_2_CNTRL,
-- 
2.26.2

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