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net: dsa: qca8k: Force CPU port to its highest bandwidth

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By default autonegotiation is enabled to configure MAC on all ports.
For the CPU port autonegotiation can not be used so we need to set
some sensible defaults manually.

This patch forces the default setting of the CPU port to 1000Mbps/full
duplex which is the chip maximum capability.

Also correct size of the bit field used to configure link speed.

Fixes: 6b93fb4648 ("net-next: dsa: add new driver for qca8xxx family")
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michal Vokáč
2018-05-23 08:20:21 +02:00
committed by David S. Miller
parent eee1fe6476
commit 79a4ed4f0f
2 changed files with 9 additions and 3 deletions
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6
drivers/net/dsa/qca8k.c
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@@ -490,6 +490,7 @@ qca8k_setup(struct dsa_switch *ds)
{
struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
int ret, i, phy_mode = -1;
u32 mask;
/* Make sure that port 0 is the cpu port */
if (!dsa_is_cpu_port(ds, 0)) {
@@ -515,7 +516,10 @@ qca8k_setup(struct dsa_switch *ds)
if (ret < 0)
return ret;
/* Enable CPU Port */
/* Enable CPU Port, force it to maximum bandwidth and full-duplex */
mask = QCA8K_PORT_STATUS_SPEED_1000 | QCA8K_PORT_STATUS_TXFLOW |
QCA8K_PORT_STATUS_RXFLOW | QCA8K_PORT_STATUS_DUPLEX;
qca8k_write(priv, QCA8K_REG_PORT_STATUS(QCA8K_CPU_PORT), mask);
qca8k_reg_set(priv, QCA8K_REG_GLOBAL_FW_CTRL0,
QCA8K_GLOBAL_FW_CTRL0_CPU_PORT_EN);
qca8k_port_set_status(priv, QCA8K_CPU_PORT, 1);