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authorTheo de Raadt <deraadt@cvs.openbsd.org>2001-04-11 06:47:33 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>2001-04-11 06:47:33 +0000
commitbb9b544d3deb8d6b913b2567e51e9bf25fbd4f60 (patch)
tree377e1d79548750b4e73c07f8ca38f358498adf35 /sys
parent1b0e276e102c876f3642457f2941228c1b93a722 (diff)
driver for BCM5201/5202 PHY
Diffstat (limited to 'sys')
-rw-r--r--sys/dev/mii/bmtphy.c244
-rw-r--r--sys/dev/mii/bmtphyreg.h33
-rw-r--r--sys/dev/mii/files.mii6
3 files changed, 282 insertions, 1 deletions
diff --git a/sys/dev/mii/bmtphy.c b/sys/dev/mii/bmtphy.c
new file mode 100644
index 00000000000..7a3a86a77bf
--- /dev/null
+++ b/sys/dev/mii/bmtphy.c
@@ -0,0 +1,244 @@
+/* $OpenBSD: bmtphy.c,v 1.1 2001/04/11 06:47:31 deraadt Exp $ */
+/* $NetBSD: nsphy.c,v 1.25 2000/02/02 23:34:57 thorpej Exp $ */
+
+/*
+ * driver for Broadcom BCM5201/5202 Mini-Theta ethernet 10/100 PHY
+ * Data Sheet available from Broadcom
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+#include <sys/socket.h>
+#include <sys/errno.h>
+
+#include <net/if.h>
+#include <net/if_media.h>
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+#include <dev/mii/miidevs.h>
+
+#include <dev/mii/bmtphyreg.h>
+
+int bmtphymatch __P((struct device *, void *, void *));
+void bmtphyattach __P((struct device *, struct device *, void *));
+
+struct cfattach bmtphy_ca = {
+ sizeof(struct mii_softc), bmtphymatch, bmtphyattach, mii_phy_detach,
+ mii_phy_activate
+};
+
+struct cfdriver bmtphy_cd = {
+ NULL, "bmtphy", DV_DULL
+};
+
+int bmtphy_service __P((struct mii_softc *, struct mii_data *, int));
+void bmtphy_status __P((struct mii_softc *));
+void bmtphy_reset __P((struct mii_softc *));
+
+int
+bmtphymatch(parent, match, aux)
+ struct device *parent;
+ void *match;
+ void *aux;
+{
+ struct mii_attach_args *ma = aux;
+
+ if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_BROADCOM &&
+ MII_MODEL(ma->mii_id2) == MII_MODEL_BROADCOM_BCM5201)
+ return (10);
+
+ return (0);
+}
+
+void
+bmtphyattach(parent, self, aux)
+ struct device *parent;
+ struct device *self;
+ void *aux;
+{
+ struct mii_softc *sc = (struct mii_softc *)self;
+ struct mii_attach_args *ma = aux;
+ struct mii_data *mii = ma->mii_data;
+
+ printf(": %s, rev. %d\n", MII_STR_BROADCOM_BCM5201,
+ MII_REV(ma->mii_id2));
+
+ sc->mii_inst = mii->mii_instance;
+ sc->mii_phy = ma->mii_phyno;
+ sc->mii_service = bmtphy_service;
+ sc->mii_status = bmtphy_status;
+ sc->mii_pdata = mii;
+ sc->mii_flags = mii->mii_flags;
+
+ bmtphy_reset(sc);
+
+ sc->mii_capabilities =
+ PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
+ if (sc->mii_capabilities & BMSR_MEDIAMASK)
+ mii_phy_add_media(sc);
+}
+
+int
+bmtphy_service(sc, mii, cmd)
+ struct mii_softc *sc;
+ struct mii_data *mii;
+ int cmd;
+{
+ struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
+ int reg;
+
+ if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0)
+ return (ENXIO);
+
+ switch (cmd) {
+ case MII_POLLSTAT:
+ /*
+ * If we're not polling our PHY instance, just return.
+ */
+ if (IFM_INST(ife->ifm_media) != sc->mii_inst)
+ return (0);
+ break;
+
+ case MII_MEDIACHG:
+ /*
+ * If the media indicates a different PHY instance,
+ * isolate ourselves.
+ */
+ if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
+ reg = PHY_READ(sc, MII_BMCR);
+ PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
+ return (0);
+ }
+
+ /*
+ * If the interface is not up, don't do anything.
+ */
+ if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
+ break;
+
+ mii_phy_setmedia(sc);
+ break;
+
+ case MII_TICK:
+ /*
+ * If we're not currently selected, just return.
+ */
+ if (IFM_INST(ife->ifm_media) != sc->mii_inst)
+ return (0);
+
+ /*
+ * Only used for autonegotiation.
+ */
+ if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
+ return (0);
+
+ /*
+ * Is the interface even up?
+ */
+ if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
+ return (0);
+
+ /*
+ * Check to see if we have link. If we do, we don't
+ * need to restart the autonegotiation process. Read
+ * the BMSR twice in case it's latched.
+ */
+ reg = PHY_READ(sc, MII_BMSR) |
+ PHY_READ(sc, MII_BMSR);
+ if (reg & BMSR_LINK)
+ return (0);
+
+ /*
+ * Only retry autonegotiation every 5 seconds.
+ */
+ if (++sc->mii_ticks != 5)
+ return (0);
+
+ sc->mii_ticks = 0;
+ bmtphy_reset(sc);
+ if (mii_phy_auto(sc, 0) == EJUSTRETURN)
+ return (0);
+ break;
+
+ case MII_DOWN:
+ mii_phy_down(sc);
+ return (0);
+ }
+
+ /* Update the media status. */
+ mii_phy_status(sc);
+
+ /* Callback if something changed. */
+ mii_phy_update(sc, cmd);
+ return (0);
+}
+
+void
+bmtphy_status(sc)
+ struct mii_softc *sc;
+{
+ struct mii_data *mii = sc->mii_pdata;
+ struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
+ int bmsr, bmcr, auxc;
+
+ mii->mii_media_status = IFM_AVALID;
+ mii->mii_media_active = IFM_ETHER;
+
+ bmsr = PHY_READ(sc, MII_BMSR) |
+ PHY_READ(sc, MII_BMSR);
+ if (bmsr & BMSR_LINK)
+ mii->mii_media_status |= IFM_ACTIVE;
+
+ bmcr = PHY_READ(sc, MII_BMCR);
+ if (bmcr & BMCR_ISO) {
+ mii->mii_media_active |= IFM_NONE;
+ mii->mii_media_status = 0;
+ return;
+ }
+
+ if (bmcr & BMCR_LOOP)
+ mii->mii_media_active |= IFM_LOOP;
+
+ if (bmcr & BMCR_AUTOEN) {
+ /*
+ * The later are only valid if autonegotiation
+ * has completed (or it's disabled).
+ */
+ if ((bmsr & BMSR_ACOMP) == 0) {
+ /* Erg, still trying, I guess... */
+ mii->mii_media_active |= IFM_NONE;
+ return;
+ }
+
+ auxc = PHY_READ(sc, MII_BMTPHY_AUXC);
+ if (auxc & AUXC_SP100)
+ mii->mii_media_active |= IFM_100_TX;
+ else
+ mii->mii_media_active |= IFM_10_T;
+ if (auxc & AUXC_FDX)
+ mii->mii_media_active |= IFM_FDX;
+
+ } else
+ mii->mii_media_active = ife->ifm_media;
+}
+
+void
+bmtphy_reset(sc)
+ struct mii_softc *sc;
+{
+ int anar;
+
+ mii_phy_reset(sc);
+
+ anar = PHY_READ(sc, MII_ANAR);
+ anar |= BMSR_MEDIA_TO_ANAR(PHY_READ(sc, MII_BMSR));
+ PHY_WRITE(sc, MII_ANAR, anar);
+
+ /* Chip resets with FDX bit not set */
+ PHY_WRITE(sc, MII_BMCR, PHY_READ(sc, MII_BMCR) |
+ BMCR_S100|BMCR_AUTOEN|BMCR_STARTNEG|BMCR_FDX);
+}
diff --git a/sys/dev/mii/bmtphyreg.h b/sys/dev/mii/bmtphyreg.h
new file mode 100644
index 00000000000..e0824e6fe9f
--- /dev/null
+++ b/sys/dev/mii/bmtphyreg.h
@@ -0,0 +1,33 @@
+/* $OpenBSD: bmtphyreg.h,v 1.1 2001/04/11 06:47:31 deraadt Exp $ */
+/* $NetBSD: bmtphyreg.h,v 1.1 1998/08/10 23:58:39 thorpej Exp $ */
+
+#ifndef _DEV_MII_BMTPHYREG_H_
+#define _DEV_MII_BMTPHYREG_H_
+
+#define MII_BMTPHY_100RCVERR 0x12 /* 100base-X rcv error counter */
+
+#define MII_BMTPHY_FCSCR 0x13 /* 100base-X false carrier counter */
+
+#define MII_BMTPHY_100DISC 0x14 /* 100base-X rcv error counter */
+
+#define MII_BMTPHY_TXEQUAL 0x15 /* TX equalizer coefficient */
+
+#define MII_BMTPHY_TXEQCTRL 0x16 /* TX equalizer control */
+
+#define MII_BMTPHY_PTEST 0x17 /* PTEST */
+
+#define MII_BMTPHY_AUXC 0x18 /* Aux control/status */
+#define AUXC_FORCELINK 0x4000 /* */
+#define AUXC_AUTONEG 0x0010 /* */
+#define AUXC_FORCE100 0x0004 /* Force 100 indicator */
+#define AUXC_SP100 0x0002 /* SP100 indicator */
+#define AUXC_FDX 0x0001 /* Full duplex indicator */
+
+#define MII_BMTPHY_AUXS 0x19 /* Aux status summary */
+#define AUXS_SP100 0x0008 /* */
+#define AUXS_LINKSTATUS 0x0004 /* */
+
+#define MII_BMTPHY_AUX2 0x1b /* aux mode 2 */
+#define AUX2_TWOLNKLED 0x0004 /* Two link led mode */
+
+#endif /* _DEV_MII_BMTPHYREG_H_ */
diff --git a/sys/dev/mii/files.mii b/sys/dev/mii/files.mii
index d92db511918..a343edead21 100644
--- a/sys/dev/mii/files.mii
+++ b/sys/dev/mii/files.mii
@@ -1,4 +1,4 @@
-# $OpenBSD: files.mii,v 1.14 2000/10/17 19:10:31 jason Exp $
+# $OpenBSD: files.mii,v 1.15 2001/04/11 06:47:31 deraadt Exp $
# $NetBSD: files.mii,v 1.13 1998/11/05 00:36:48 thorpej Exp $
file dev/mii/mii.c mii
@@ -73,6 +73,10 @@ device dcphy: mii_phy
attach dcphy at mii
file dev/mii/dcphy.c dcphy
+device bmtphy: mii_phy
+attach bmtphy at mii
+file dev/mii/bmtphy.c bmtphy
+
device brgphy: mii_phy
attach brgphy at mii
file dev/mii/brgphy.c brgphy