From: Sonic Zhang <sonic.zh...@analog.com>
Board can define its own AXI burst length to improve DWMAC DMA performance.
v2-changes:
- Avoid write burst len register when the Macro is not defined.
Signed-off-by: Sonic Zhang <sonic.zh...@analog.com>
---
drivers/net/designware.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/designware.c b/drivers/net/designware.c
index 9ded895..51eff85 100644
--- a/drivers/net/designware.c
+++ b/drivers/net/designware.c
@@ -256,6 +256,10 @@ static int dw_eth_init(struct eth_device *dev, bd_t *bis)
writel(readl(&dma_p->opmode) | RXSTART | TXSTART, &dma_p->opmode);
+#ifdef CONFIG_DW_AXI_BURST_LEN
+ writel((CONFIG_DW_AXI_BURST_LEN & 0x1FF >> 1), &dma_p->axibus);
+#endif
+
/* Start up the PHY */
if (phy_startup(priv->phydev)) {
printf("Could not initialize PHY %s\n",
--
1.7.9.5
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