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57 lines
1.9 KiB
Diff
57 lines
1.9 KiB
Diff
From 4c247e982b2e0f35371195241528282aade02899 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Fri, 9 Aug 2019 08:52:16 +0100
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Subject: [PATCH 755/773] Revert "net: bcmgenet: Workaround for Pi 4B network
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issue"
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This reverts commit 9c0770ea7682a84a22c33410ef6870af258abacc.
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---
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.../net/ethernet/broadcom/genet/bcmgenet.c | 22 -------------------
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1 file changed, 22 deletions(-)
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--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
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+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
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@@ -72,10 +72,6 @@
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#define GENET_RDMA_REG_OFF (priv->hw_params->rdma_offset + \
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TOTAL_DESC * DMA_DESC_SIZE)
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-static bool force_reneg = false;
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-module_param(force_reneg, bool, 0444);
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-MODULE_PARM_DESC(force_reneg, "Force a renegotiation after the initial link-up");
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-
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static inline void bcmgenet_writel(u32 value, void __iomem *offset)
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{
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/* MIPS chips strapped for BE will automagically configure the
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@@ -2614,7 +2610,6 @@ static void bcmgenet_irq_task(struct wor
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unsigned int status;
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struct bcmgenet_priv *priv = container_of(
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work, struct bcmgenet_priv, bcmgenet_irq_work);
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- static int first_link = 1;
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netif_dbg(priv, intr, priv->dev, "%s\n", __func__);
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@@ -2627,23 +2622,6 @@ static void bcmgenet_irq_task(struct wor
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if (status & UMAC_IRQ_LINK_EVENT) {
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priv->dev->phydev->link = !!(status & UMAC_IRQ_LINK_UP);
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phy_mac_interrupt(priv->dev->phydev);
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-
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- if (priv->dev->phydev->link && first_link) {
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- first_link = 0;
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- /*
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- * HACK: Some Pi4Bs, when paired with some switches,
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- * come up in a strange state where they are unable to
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- * transmit, causing them to fail to get an IP address.
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- * Although the failure mechanism is not yet understood,
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- * forcing renegotiation at this point has been shown
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- * to be effective in avoiding the problem.
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- */
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- if (force_reneg) {
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- dev_info(&priv->pdev->dev,
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- "Forcing renegotiation\n");
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- genphy_restart_aneg(priv->dev->phydev);
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- }
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- }
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}
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}
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