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From 88d0993dbe84a9b88212a4845fca28bf4c919ffb Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Tue, 26 Nov 2013 23:59:32 +0100
Subject: [PATCH 14/16] bgmac: stuff
---
drivers/net/ethernet/broadcom/bgmac.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -120,6 +120,7 @@ static netdev_tx_t bgmac_dma_tx_add(stru
struct net_device *net_dev = bgmac->net_dev;
struct bgmac_dma_desc *dma_desc;
struct bgmac_slot_info *slot;
+ int size = ring->num_slots * sizeof(struct bgmac_dma_desc);
u32 ctl0, ctl1;
int free_slots;
@@ -160,6 +161,8 @@ static netdev_tx_t bgmac_dma_tx_add(stru
dma_desc->ctl0 = cpu_to_le32(ctl0);
dma_desc->ctl1 = cpu_to_le32(ctl1);
+ dma_sync_single_for_device(dma_dev, ring->dma_base, size, DMA_TO_DEVICE);
+
netdev_sent_queue(net_dev, skb->len);
wmb();
@@ -311,6 +314,8 @@ static void bgmac_dma_rx_setup_desc(stru
struct bgmac_dma_ring *ring, int desc_idx)
{
struct bgmac_dma_desc *dma_desc = ring->cpu_base + desc_idx;
+ struct device *dma_dev = bgmac->core->dma_dev;
+ int size = ring->num_slots * sizeof(struct bgmac_dma_desc);
u32 ctl0 = 0, ctl1 = 0;
if (desc_idx == ring->num_slots - 1)
@@ -325,6 +330,8 @@ static void bgmac_dma_rx_setup_desc(stru
dma_desc->addr_high = cpu_to_le32(upper_32_bits(ring->slots[desc_idx].dma_addr));
dma_desc->ctl0 = cpu_to_le32(ctl0);
dma_desc->ctl1 = cpu_to_le32(ctl1);
+
+ dma_sync_single_for_device(dma_dev, ring->dma_base, size, DMA_TO_DEVICE);
}
static int bgmac_dma_rx_read(struct bgmac *bgmac, struct bgmac_dma_ring *ring,
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