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-rw-r--r--target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c
index 3f2f64e2ae..2859c0dbe1 100644
--- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c
+++ b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c
@@ -730,6 +730,10 @@ static void ar7240sw_setup_port(struct ar7240sw *as, unsigned port, u8 portmask)
portmask = ar7240sw_port_mask(as, AR7240_PORT_CPU);
}
+ /* preserve mirror rx&tx flags */
+ ctrl |= ar7240sw_reg_read(mii, AR7240_REG_PORT_CTRL(port)) &
+ (AR7240_PORT_CTRL_MIRROR_RX | AR7240_PORT_CTRL_MIRROR_TX);
+
/* allow the port to talk to all other ports, but exclude its
* own ID to prevent frames from being reflected back to the
* port that they came from */