diff options
| author | Niklas Cassel <niklas.cassel@axis.com> | 2016-12-07 17:20:08 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-12-08 21:07:10 +0300 |
| commit | 4022d039a315951e59d95d22e79198d861ce4490 (patch) | |
| tree | b6e62d85500ffa47e347dfa4f380f3c69eaabbdf /drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c | |
| parent | 89caaa2d80b7bf9bd8632cd3137254f8c685e5db (diff) | |
| download | linux-4022d039a315951e59d95d22e79198d861ce4490.tar.xz | |
net: smmac: allow configuring lower pbl values
The driver currently always sets the PBLx8/PBLx4 bit, which means that
the pbl values configured via the pbl/txpbl/rxpbl DT properties are
always multiplied by 8/4 in the hardware.
In order to allow the DT to configure lower pbl values, while at the
same time not changing behavior of any existing device trees using the
pbl/txpbl/rxpbl settings, add a property to disable the multiplication
of the pbl by 8/4 in the hardware.
Suggested-by: Rabin Vincent <rabinv@axis.com>
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c index 56c8a2342c14..a2831773431a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c @@ -81,6 +81,7 @@ static void stmmac_default_data(struct plat_stmmacenet_data *plat) plat->mdio_bus_data->phy_mask = 0; plat->dma_cfg->pbl = 32; + plat->dma_cfg->pblx8 = true; /* TODO: AXI */ /* Set default value for multicast hash bins */ @@ -115,6 +116,7 @@ static int quark_default_data(struct plat_stmmacenet_data *plat, plat->mdio_bus_data->phy_mask = 0; plat->dma_cfg->pbl = 16; + plat->dma_cfg->pblx8 = true; plat->dma_cfg->fixed_burst = 1; /* AXI (TODO) */ |