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45 lines
1.5 KiB
Diff
45 lines
1.5 KiB
Diff
From 1ddf09acee075f2c805e57e925d5df17fa82ece7 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Tue, 11 Jun 2024 16:44:07 +0100
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Subject: [PATCH 478/697] lan78xx: Read initial EEE status from DT
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Add two new DT properties:
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* microchip,eee-enabled - a boolean to enable EEE
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* microchip,tx-lpi-timer - time in microseconds to wait before entering
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low power state
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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drivers/net/usb/lan78xx.c | 21 ++++++++++++++++++++-
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1 file changed, 20 insertions(+), 1 deletion(-)
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--- a/drivers/net/usb/lan78xx.c
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+++ b/drivers/net/usb/lan78xx.c
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@@ -2422,7 +2422,26 @@ static int lan78xx_phy_init(struct lan78
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mii_adv_to_linkmode_adv_t(fc, mii_adv);
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linkmode_or(phydev->advertising, fc, phydev->advertising);
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- phy_support_eee(phydev);
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+ if (of_property_read_bool(phydev->mdio.dev.of_node,
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+ "microchip,eee-enabled")) {
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+ struct ethtool_keee edata;
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+ memset(&edata, 0, sizeof(edata));
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+
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+ linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
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+ edata.advertised);
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+ linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
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+ edata.advertised);
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+
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+ edata.eee_enabled = true;
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+ edata.tx_lpi_enabled = true;
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+ if (of_property_read_u32(phydev->mdio.dev.of_node,
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+ "microchip,tx-lpi-timer",
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+ &edata.tx_lpi_timer))
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+ edata.tx_lpi_timer = 600; /* non-aggressive */
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+ (void)lan78xx_set_eee(dev->net, &edata);
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+
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+ phy_support_eee(phydev);
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+ }
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if (phydev->mdio.dev.of_node) {
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u32 reg;
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