diff options
| author | Sonic Zhang <sonic.zhang@analog.com> | 2015-01-29 13:37:31 +0800 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2015-03-05 11:17:53 -0500 |
| commit | 2ddaf13bd28d9d9450831e84e30d617d2f49f1bd (patch) | |
| tree | cfa3b345ceffe65c5859f5c32cd4c7e422383a28 /drivers/net/designware.c | |
| parent | a32ab4d910b86c83a6dee557eed68298b7e9b361 (diff) | |
net: configure DWMAC DMA by default AXI burst length
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.
v3-changes:
- Add axi_bus register member to struct eth_dma_regs.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'drivers/net/designware.c')
| -rw-r--r-- | drivers/net/designware.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/designware.c b/drivers/net/designware.c index c03e935e2f..7469e59d49 100644 --- a/drivers/net/designware.c +++ b/drivers/net/designware.c @@ -258,6 +258,10 @@ 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", |