This commit modifies the mvpp2_defaults_set() function to not do the
loopback and FIFO threshold initialization, which are not needed for
PPv2.2.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/marvell/mvpp2.c | 22 ++++++++++++----------
1 file changed, 12 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c
index 8fc818d..23f2368 100644
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -4205,16 +4205,18 @@ static void mvpp2_defaults_set(struct mvpp2_port *port)
{
int tx_port_num, val, queue, ptxq, lrxq;
- /* Configure port to loopback if needed */
- if (port->flags & MVPP2_F_LOOPBACK)
- mvpp2_port_loopback_set(port);
-
- /* Update TX FIFO MIN Threshold */
- val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
- val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
- /* Min. TX threshold must be less than minimal packet length */
- val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(64 - 4 - 2);
- writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
+ if (port->priv->hw_version == MVPP21) {
+ /* Configure port to loopback if needed */
+ if (port->flags & MVPP2_F_LOOPBACK)
+ mvpp2_port_loopback_set(port);
+
+ /* Update TX FIFO MIN Threshold */
+ val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
+ val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
+ /* Min. TX threshold must be less than minimal packet length */
+ val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(64 - 4 - 2);
+ writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
+ }
/* Disable Legacy WRR, Disable EJP, Release from reset */
tx_port_num = mvpp2_egress_port(port);
--
2.7.4
--
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