Commit 0fc57e4b authored by Ansuel Smith's avatar Ansuel Smith Committed by David S. Miller
Browse files

net: dsa: qca8k: add GLOBAL_FC settings needed for qca8327 



Switch qca8327 needs special settings for the GLOBAL_FC_THRES regs.

Signed-off-by: default avatarAnsuel Smith <ansuelsmth@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5bf9ff3b

drivers/net/dsa/qca8k.c

+10 −0
Original line number Diff line number Diff line
@@ -930,6 +930,16 @@ qca8k_setup(struct dsa_switch *ds) 
		}

	}



	/* Special GLOBAL_FC_THRESH value are needed for ar8327 switch */

	if (priv->switch_id == QCA8K_ID_QCA8327) {

		mask = QCA8K_GLOBAL_FC_GOL_XON_THRES(288) |

		       QCA8K_GLOBAL_FC_GOL_XOFF_THRES(496);

		qca8k_rmw(priv, QCA8K_REG_GLOBAL_FC_THRESH,

			  QCA8K_GLOBAL_FC_GOL_XON_THRES_S |

			  QCA8K_GLOBAL_FC_GOL_XOFF_THRES_S,

			  mask);

	}



	/* Setup our port MTUs to match power on defaults */

	for (i = 0; i < QCA8K_NUM_PORTS; i++)

		priv->port_mtu[i] = ETH_FRAME_LEN + ETH_FCS_LEN;

drivers/net/dsa/qca8k.h

+6 −0
Original line number Diff line number Diff line
@@ -168,6 +168,12 @@ 
#define   QCA8K_PORT_LOOKUP_STATE			GENMASK(18, 16)

#define   QCA8K_PORT_LOOKUP_LEARN			BIT(20)



#define QCA8K_REG_GLOBAL_FC_THRESH			0x800

#define   QCA8K_GLOBAL_FC_GOL_XON_THRES(x)		((x) << 16)

#define   QCA8K_GLOBAL_FC_GOL_XON_THRES_S		GENMASK(24, 16)

#define   QCA8K_GLOBAL_FC_GOL_XOFF_THRES(x)		((x) << 0)

#define   QCA8K_GLOBAL_FC_GOL_XOFF_THRES_S		GENMASK(8, 0)



#define QCA8K_REG_PORT_HOL_CTRL0(_i)			(0x970 + (_i) * 0x8)

#define   QCA8K_PORT_HOL_CTRL0_EG_PRI0_BUF		GENMASK(3, 0)

#define   QCA8K_PORT_HOL_CTRL0_EG_PRI0(x)		((x) << 0)