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openmptcprouter/6.1/target/linux/bcm27xx/patches-6.1/950-0181-bcmgenet-constrain-max-DMA-burst-length.patch
Ycarus (Yannick Chabanois) 3743692973 Fix RPI5 support
2023-11-17 17:31:36 +01:00

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From 4a35d2ff920b04605b8a2f967c6fb6fc8ed719dd Mon Sep 17 00:00:00 2001
From: Jonathan Bell <jonathan@raspberrypi.org>
Date: Wed, 12 Sep 2018 14:44:53 +0100
Subject: [PATCH] bcmgenet: constrain max DMA burst length
---
drivers/net/ethernet/broadcom/genet/bcmgenet.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
@@ -31,7 +31,7 @@
#define ENET_PAD 8
#define ENET_MAX_MTU_SIZE (ETH_DATA_LEN + ETH_HLEN + VLAN_HLEN + \
ENET_BRCM_TAG_LEN + ETH_FCS_LEN + ENET_PAD)
-#define DMA_MAX_BURST_LENGTH 0x10
+#define DMA_MAX_BURST_LENGTH 0x08
/* misc. configuration */
#define MAX_NUM_OF_FS_RULES 16