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-rw-r--r--drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h2
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c3
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
index 3b6e559aa0b9..ef8a07c68ca7 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
@@ -343,6 +343,8 @@
#define XGMAC_DMA_CH_RX_CONTROL(x) (0x00003108 + (0x80 * (x)))
#define XGMAC_RxPBL GENMASK(21, 16)
#define XGMAC_RxPBL_SHIFT 16
+#define XGMAC_RBSZ GENMASK(14, 1)
+#define XGMAC_RBSZ_SHIFT 1
#define XGMAC_RXST BIT(0)
#define XGMAC_DMA_CH_TxDESC_HADDR(x) (0x00003110 + (0x80 * (x)))
#define XGMAC_DMA_CH_TxDESC_LADDR(x) (0x00003114 + (0x80 * (x)))
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
index 22a7f0cc1b90..f3f08ccc379b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
@@ -482,7 +482,8 @@ static void dwxgmac2_set_bfsize(void __iomem *ioaddr, int bfsize, u32 chan)
u32 value;
value = readl(ioaddr + XGMAC_DMA_CH_RX_CONTROL(chan));
- value |= bfsize << 1;
+ value &= ~XGMAC_RBSZ;
+ value |= bfsize << XGMAC_RBSZ_SHIFT;
writel(value, ioaddr + XGMAC_DMA_CH_RX_CONTROL(chan));
}