[U-Boot] [PATCH V2 4/8] net/designware: Consecutive writes must have delay

[Amit Virdi]

From: Armando Visconti <armando.visconti at st.com>

This patch solves a TX/RX problem which happens at 10Mbps, due to the
fact that we are not respecting 4 cyles of the phy_clk (2.5MHz) between
two consecutive writes on the same register.

Signed-off-by: Armando Visconti <armando.visconti at st.com>
Signed-off-by: Amit Virdi <amit.virdi at st.com>
---
 drivers/net/designware.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/net/designware.c b/drivers/net/designware.c
index fc14b70..933032c 100644
--- a/drivers/net/designware.c
+++ b/drivers/net/designware.c
@@ -175,8 +175,7 @@ static int dw_eth_init(struct eth_device *dev, bd_t *bis)
 	writel(readl(&dma_p->opmode) | RXSTART, &dma_p->opmode);
 	writel(readl(&dma_p->opmode) | TXSTART, &dma_p->opmode);
 
-	writel(readl(&mac_p->conf) | RXENABLE, &mac_p->conf);
-	writel(readl(&mac_p->conf) | TXENABLE, &mac_p->conf);
+	writel(readl(&mac_p->conf) | RXENABLE | TXENABLE, &mac_p->conf);
 
 	return 0;
 }
-- 
1.7.2.2