From: Jose Abreu <Jose.Abreu@synopsys.com>
Date: Fri, 28 Jun 2019 07:29:15 +0000 (+0200)
Subject: net: stmmac: dwxgmac: Fix the undefined burst setting
X-Git-Tag: microblaze-v5.4-rc1~347^2~118^2~6
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=900a81cc119b89c1525197a6d7f714ef6af38c5e;p=linux-2.6-microblaze.git

net: stmmac: dwxgmac: Fix the undefined burst setting

Undefined burst shall only be set if pdata asks to.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
index 42448973c36e..b739673f8842 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
@@ -91,11 +91,11 @@ static void dwxgmac2_dma_axi(void __iomem *ioaddr, struct stmmac_axi *axi)
 	value |= (axi->axi_rd_osr_lmt << XGMAC_RD_OSR_LMT_SHIFT) &
 		XGMAC_RD_OSR_LMT;
 
+	if (!axi->axi_fb)
+		value |= XGMAC_UNDEF;
+
 	value &= ~XGMAC_BLEN;
 	for (i = 0; i < AXI_BLEN; i++) {
-		if (axi->axi_blen[i])
-			value &= ~XGMAC_UNDEF;
-
 		switch (axi->axi_blen[i]) {
 		case 256:
 			value |= XGMAC_BLEN256;