From: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date: Sat, 18 Aug 2012 02:29:18 +0000 (+0800)
Subject: bnx: Enable 500Khz MII management interface frequency
X-Git-Tag: v3.2.0~369
X-Git-Url: http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/7892075d32da727275bf9b3e92f54de79f2eb953

bnx: Enable 500Khz MII management interface frequency

This stablizes MII read/write, thus avoid MII probing failure

Reported-by: jaydg on #dragonflybsd
Tested-by: jaydg on #dragonflybsd
---

diff --git a/sys/dev/netif/bnx/if_bnx.c b/sys/dev/netif/bnx/if_bnx.c
index d0ac885..a6fa0cc 100644
--- a/sys/dev/netif/bnx/if_bnx.c
+++ b/sys/dev/netif/bnx/if_bnx.c
@@ -2440,6 +2440,10 @@ bnx_reset(struct bnx_softc *sc)
 		CSR_WRITE_4(sc, BGE_SERDES_CFG, serdescfg);
 	}
 
+	CSR_WRITE_4(sc, BGE_MI_MODE,
+	    sc->bnx_mi_mode & ~BGE_MIMODE_AUTOPOLL);
+	DELAY(80);
+
 	/* XXX: Broadcom Linux driver. */
 	if (!BNX_IS_57765_PLUS(sc)) {
 		uint32_t v;