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Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0210-bcmgenet-constrain-max-DMA-burst-length.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0210-bcmgenet-constrain-max-DMA-burst-length.patch20
1 files changed, 20 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0210-bcmgenet-constrain-max-DMA-burst-length.patch b/target/linux/bcm27xx/patches-5.4/950-0210-bcmgenet-constrain-max-DMA-burst-length.patch
new file mode 100644
index 0000000000..7f065eb630
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0210-bcmgenet-constrain-max-DMA-burst-length.patch
@@ -0,0 +1,20 @@
+From f4d211891064eef8b133838c213485a228ad75f3 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
+@@ -28,7 +28,7 @@
+ #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 CLEAR_ALL_HFB 0xFF