net: gem: Disable broadcast setting

There is no need for GEM to accepts broadcast packets because they are not
handled by u-boot anyway. That's why use HW IP feature and don't waste time
on these packats which will be dropped anyway.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Link: https://lore.kernel.org/r/0e236c3a6514a2a633ef3a5b71a967c46f7fbae7.1634303007.git.michal.simek@xilinx.com

diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index ff59982..c309c3c 100644 (file)
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -60,6 +60,7 @@
 #define ZYNQ_GEM_NWCFG_SPEED100                0x00000001 /* 100 Mbps operation */
 #define ZYNQ_GEM_NWCFG_SPEED1000       0x00000400 /* 1Gbps operation */
 #define ZYNQ_GEM_NWCFG_FDEN            0x00000002 /* Full Duplex mode */
+#define ZYNQ_GEM_NWCFG_NO_BRDC         BIT(5) /* No broadcast */
 #define ZYNQ_GEM_NWCFG_FSREM           0x00020000 /* FCS removal */
 #define ZYNQ_GEM_NWCFG_SGMII_ENBL      0x08000000 /* SGMII Enable */
 #define ZYNQ_GEM_NWCFG_PCS_SEL         0x00000800 /* PCS select */
@@ -77,6 +78,7 @@
 
 #define ZYNQ_GEM_NWCFG_INIT            (ZYNQ_GEM_DBUS_WIDTH | \
                                        ZYNQ_GEM_NWCFG_FDEN | \
+                                       ZYNQ_GEM_NWCFG_NO_BRDC | \
                                        ZYNQ_GEM_NWCFG_FSREM | \
                                        ZYNQ_GEM_NWCFG_MDCCLKDIV)