[U-Boot] [Patch V6 04/18] net/fm/eth: Use mb() to be compatible for both ARM and PowerPC

[Gong Qianyu]

From: Shaohui Xie <Shaohui.Xie at freescale.com>

Use mb() instead of sync() to be compatible for both ARM and PowerPC.

Signed-off-by: Shaohui Xie <Shaohui.Xie at freescale.com>
Signed-off-by: Mingkai Hu <Mingkai.Hu at freescale.com>
Signed-off-by: Gong Qianyu <Qianyu.Gong at freescale.com>
---
V6:
 - No change.
V5:
 - No change.
V4:
 - No change.
V3:
 - New patch. Separated from patch 'net: Move some header files to include/'

 drivers/net/fm/eth.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/fm/eth.c b/drivers/net/fm/eth.c
index 368d554..ad02c66 100644
--- a/drivers/net/fm/eth.c
+++ b/drivers/net/fm/eth.c
@@ -371,7 +371,7 @@ static void fmc_tx_port_graceful_stop_enable(struct fm_eth *fm_eth)
 	pram = fm_eth->tx_pram;
 	/* graceful stop transmission of frames */
 	setbits_be32(&pram->mode, PRAM_MODE_GRACEFUL_STOP);
-	sync();
+	mb();
 }
 
 static void fmc_tx_port_graceful_stop_disable(struct fm_eth *fm_eth)
@@ -381,7 +381,7 @@ static void fmc_tx_port_graceful_stop_disable(struct fm_eth *fm_eth)
 	pram = fm_eth->tx_pram;
 	/* re-enable transmission of frames */
 	clrbits_be32(&pram->mode, PRAM_MODE_GRACEFUL_STOP);
-	sync();
+	mb();
 }
 
 static int fm_eth_open(struct eth_device *dev, bd_t *bd)
@@ -483,9 +483,9 @@ static int fm_eth_send(struct eth_device *dev, void *buf, int len)
 	muram_writew(&txbd->buf_ptr_hi, 0);
 	out_be32(&txbd->buf_ptr_lo, (u32)buf);
 	muram_writew(&txbd->len, len);
-	sync();
+	mb();
 	muram_writew(&txbd->status, TxBD_READY | TxBD_LAST);
-	sync();
+	mb();
 
 	/* update TxQD, let RISC to send the packet */
 	offset_in = muram_readw(&pram->txqd.offset_in);
@@ -493,7 +493,7 @@ static int fm_eth_send(struct eth_device *dev, void *buf, int len)
 	if (offset_in >= muram_readw(&pram->txqd.bd_ring_size))
 		offset_in = 0;
 	muram_writew(&pram->txqd.offset_in, offset_in);
-	sync();
+	mb();
 
 	/* wait for buffer to be transmitted */
 	for (i = 0; muram_readw(&txbd->status) & TxBD_READY; i++) {
@@ -544,7 +544,7 @@ static int fm_eth_recv(struct eth_device *dev)
 		/* clear the RxBDs */
 		muram_writew(&rxbd->status, RxBD_EMPTY);
 		muram_writew(&rxbd->len, 0);
-		sync();
+		mb();
 
 		/* advance RxBD */
 		rxbd++;
@@ -560,7 +560,7 @@ static int fm_eth_recv(struct eth_device *dev)
 		if (offset_out >= muram_readw(&pram->rxqd.bd_ring_size))
 			offset_out = 0;
 		muram_writew(&pram->rxqd.offset_out, offset_out);
-		sync();
+		mb();
 	}
 	fm_eth->cur_rxbd = (void *)rxbd;
 
-- 
2.1.0.27.g96db324