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f07e572f64
bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G bcm2710: boot tested on RPi 3B v1.2 bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
32 lines
1.2 KiB
Diff
32 lines
1.2 KiB
Diff
From cbe8b55622fc2f0a959da599447c87cf1f967a91 Mon Sep 17 00:00:00 2001
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From: Jonathan Bell <jonathan@raspberrypi.org>
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Date: Tue, 14 May 2019 17:17:59 +0100
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Subject: [PATCH] net: genet: enable link energy detect powerdown for
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external PHYs
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There are several warts surrounding bcmgenet_mii_probe() as this
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function is called from ndo_open, but it's calling registration-type
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functions. The probe should be called at probe time and refactored
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such that the PHY device data can be extracted to limit the scope
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of this flag to Broadcom PHYs.
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For now, pass this flag in as it puts our attached PHY into a low-power
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state when disconnected.
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Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
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---
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drivers/net/ethernet/broadcom/genet/bcmmii.c | 2 ++
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1 file changed, 2 insertions(+)
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--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
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+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
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@@ -316,6 +316,8 @@ int bcmgenet_mii_probe(struct net_device
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/* Communicate the integrated PHY revision */
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if (priv->internal_phy)
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phy_flags = priv->gphy_rev;
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+ else
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+ phy_flags = PHY_BRCM_AUTO_PWRDWN_ENABLE;
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/* Initialize link state variables that bcmgenet_mii_setup() uses */
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priv->old_link = -1;
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