@@ -2434,14 +2434,12 @@ mt7531_setup(struct dsa_switch *ds)
val = mt7530_read(priv, MT7531_TOP_SIG_SR);
priv->p5_sgmii = !!(val & PAD_DUAL_SGMII_EN);
- /* all MACs must be forced link-down before sw reset */
+ /* Force link down on all ports before internal reset */
for (i = 0; i < MT7530_NUM_PORTS; i++)
mt7530_write(priv, MT7530_PMCR_P(i), MT7531_FORCE_LNK);
/* Reset the switch through internal reset */
- mt7530_write(priv, MT7530_SYS_CTRL,
- SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |
- SYS_CTRL_REG_RST);
+ mt7530_write(priv, MT7530_SYS_CTRL, SYS_CTRL_SW_RST | SYS_CTRL_REG_RST);
if (!priv->p5_sgmii) {
mt7531_pll_setup(priv);
According to the document MT7531 Reference Manual for Development Board v1.0, the SW_PHY_RST bit on the SYS_CTRL register doesn't exist for MT7531. This is likely why forcing link down on all ports is necessary for MT7531. Therefore, do not set SW_PHY_RST on mt7531_setup(). Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com> --- drivers/net/dsa/mt7530.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)