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net: dsa: b53: do not enable RGMII delay on bcm63xx

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[ Upstream commit 4af523551d876ab8b8057d1e5303a860fd736fcb ]

bcm63xx's RGMII ports are always in MAC mode, never in PHY mode, so we
shouldn't enable any delays and let the PHY handle any delays as
necessary.

This fixes using RGMII ports with normal PHYs like BCM54612E, which will
handle the delay in the PHY.

Fixes: ce3bf94871 ("net: dsa: b53: add support for BCM63xx RGMIIs")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20250602193953.1010487-3-jonas.gorski@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jonas Gorski
2025-06-02 21:39:50 +02:00
committed by Greg Kroah-Hartman
parent 1c7a023b0c
commit 02c03865d2
1 changed files with 1 additions and 18 deletions
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19
drivers/net/dsa/b53/b53_common.c
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@@ -1237,24 +1237,7 @@ static void b53_adjust_63xx_rgmii(struct dsa_switch *ds, int port,
off = B53_RGMII_CTRL_P(port);
b53_read8(dev, B53_CTRL_PAGE, off, &rgmii_ctrl);
switch (interface) {
case PHY_INTERFACE_MODE_RGMII_ID:
rgmii_ctrl |= (RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC);
break;
case PHY_INTERFACE_MODE_RGMII_RXID:
rgmii_ctrl &= ~(RGMII_CTRL_DLL_TXC);
rgmii_ctrl |= RGMII_CTRL_DLL_RXC;
break;
case PHY_INTERFACE_MODE_RGMII_TXID:
rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC);
rgmii_ctrl |= RGMII_CTRL_DLL_TXC;
break;
case PHY_INTERFACE_MODE_RGMII:
default:
rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC);
break;
}
rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC);
if (port != dev->imp_port) {
if (is63268(dev))