CVS commit: src/sys/dev/mii

[SAITOH Masanobu]

Module Name:    src
Committed By:   msaitoh
Date:           Thu Feb 14 04:13:40 UTC 2019

Modified Files:
        src/sys/dev/mii: micphy.c

Log Message:
Add KSZ8081 support from FreeBSD.


To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 src/sys/dev/mii/micphy.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.


Modified files:

Index: src/sys/dev/mii/micphy.c
diff -u src/sys/dev/mii/micphy.c:1.5 src/sys/dev/mii/micphy.c:1.6
--- src/sys/dev/mii/micphy.c:1.5	Tue Jan 22 17:41:06 2019
+++ src/sys/dev/mii/micphy.c	Thu Feb 14 04:13:40 2019
@@ -1,4 +1,4 @@
-/*	$NetBSD: micphy.c,v 1.5 2019/01/22 17:41:06 skrll Exp $	*/
+/*	$NetBSD: micphy.c,v 1.6 2019/02/14 04:13:40 msaitoh Exp $	*/
 
 /*-
  * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
@@ -59,7 +59,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: micphy.c,v 1.5 2019/01/22 17:41:06 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: micphy.c,v 1.6 2019/02/14 04:13:40 msaitoh Exp $");
 
 #include "opt_mii.h"
 
@@ -79,6 +79,8 @@ __KERNEL_RCSID(0, "$NetBSD: micphy.c,v 1
 
 static int	micphymatch(device_t, cfdata_t, void *);
 static void	micphyattach(device_t, device_t, void *);
+static void	micphy_reset(struct mii_softc *);
+static int	micphy_service(struct mii_softc *, struct mii_data *, int);
 
 CFATTACH_DECL3_NEW(micphy, sizeof(struct mii_softc),
     micphymatch, micphyattach, mii_phy_detach, mii_phy_activate, NULL, NULL,
@@ -88,10 +90,13 @@ static int	micphy_service(struct mii_sof
 static void	micphy_fixup(struct mii_softc *, int, int, device_t);
 
 static const struct mii_phy_funcs micphy_funcs = {
-	micphy_service, ukphy_status, mii_phy_reset,
+	micphy_service, ukphy_status, micphy_reset,
 };
 
 static const struct mii_phydesc micphys[] = {
+	{ MII_OUI_MICREL,		MII_MODEL_MICREL_KSZ8081,
+	  MII_STR_MICREL_KSZ8081 },
+
 	{ MII_OUI_MICREL,		MII_MODEL_MICREL_KSZ9021RNI,
 	  MII_STR_MICREL_KSZ9021RNI },
 
@@ -99,6 +104,8 @@ static const struct mii_phydesc micphys[
 	  NULL },
 };
 
+#define	MII_KSZ8081_PHYCTL2			0x1f
+
 static int
 micphymatch(device_t parent, cfdata_t match, void *aux)
 {
@@ -149,6 +156,24 @@ micphyattach(device_t parent, device_t s
 	aprint_normal("\n");
 }
 
+static void
+micphy_reset(struct mii_softc *sc)
+{
+	uint16_t reg;
+
+	/*
+	 * The 8081 has no "sticky bits" that survive a soft reset; several bits
+	 * in the Phy Control Register 2 must be preserved across the reset.
+	 * These bits are set up by the bootloader; they control how the phy
+	 * interfaces to the board (such as clock frequency and LED behavior).
+	 */
+	if (sc->mii_mpd_model == MII_MODEL_MICREL_KSZ8081)
+		PHY_READ(sc, MII_KSZ8081_PHYCTL2, &reg);
+	mii_phy_reset(sc);
+	if (sc->mii_mpd_model == MII_MODEL_MICREL_KSZ8081)
+		PHY_WRITE(sc, MII_KSZ8081_PHYCTL2, reg);
+}
+
 static int
 micphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
 {