Some CPU needs cache handling. So this patch add the config of CONFIG_SH_ETHER_CACHE_WRITEBACK, and it calls wback function.

Signed-off-by: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com --- drivers/net/sh_eth.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c index 86cc324..53d918d 100644 --- a/drivers/net/sh_eth.c +++ b/drivers/net/sh_eth.c @@ -36,6 +36,12 @@ #ifndef CONFIG_SH_ETHER_PHY_ADDR # error "Please define CONFIG_SH_ETHER_PHY_ADDR" #endif +#ifdef CONFIG_SH_ETHER_CACHE_WRITEBACK +#define flush_cache_wback(addr, len) \ + dcache_wback_range((u32)addr, (u32)(addr + len - 1)) +#else +#define flush_cache_wback(...) +#endif

#define SH_ETH_PHY_DELAY 50000

@@ -197,6 +203,7 @@ int sh_eth_send(struct eth_device *dev, volatile void *packet, int len) }

/* Update tx descriptor */ + flush_cache_wback(packet, len); port_info->tx_desc_cur->td2 = ADDR_TO_PHY(packet); port_info->tx_desc_cur->td1 = len << 16; /* Must preserve the end of descriptor list indication */ @@ -312,6 +319,7 @@ static int sh_eth_tx_desc_init(struct sh_eth_dev *eth)

tmp_addr = (u32) (((int)port_info->tx_desc_malloc + TX_DESC_SIZE - 1) & ~(TX_DESC_SIZE - 1)); + flush_cache_wback(tmp_addr, NUM_TX_DESC * sizeof(struct tx_desc_s)); /* Make sure we use a P2 address (non-cacheable) */ port_info->tx_desc_base = (struct tx_desc_s *)ADDR_TO_P2(tmp_addr); port_info->tx_desc_cur = port_info->tx_desc_base; @@ -361,6 +369,7 @@ static int sh_eth_rx_desc_init(struct sh_eth_dev *eth)

tmp_addr = (u32) (((int)port_info->rx_desc_malloc + RX_DESC_SIZE - 1) & ~(RX_DESC_SIZE - 1)); + flush_cache_wback(tmp_addr, NUM_RX_DESC * sizeof(struct rx_desc_s)); /* Make sure we use a P2 address (non-cacheable) */ port_info->rx_desc_base = (struct rx_desc_s *)ADDR_TO_P2(tmp_addr);