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if_gem.c (212725) if_gem.c (213893)
1/*-
2 * Copyright (C) 2001 Eduardo Horvath.
3 * Copyright (c) 2001-2003 Thomas Moestl
4 * Copyright (c) 2007 Marius Strobl <marius@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

--- 15 unchanged lines hidden (view full) ---

24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * from: NetBSD: gem.c,v 1.21 2002/06/01 23:50:58 lukem Exp
29 */
30
31#include <sys/cdefs.h>
1/*-
2 * Copyright (C) 2001 Eduardo Horvath.
3 * Copyright (c) 2001-2003 Thomas Moestl
4 * Copyright (c) 2007 Marius Strobl <marius@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

--- 15 unchanged lines hidden (view full) ---

24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * from: NetBSD: gem.c,v 1.21 2002/06/01 23:50:58 lukem Exp
29 */
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD: head/sys/dev/gem/if_gem.c 212725 2010-09-16 09:29:48Z marius $");
32__FBSDID("$FreeBSD: head/sys/dev/gem/if_gem.c 213893 2010-10-15 14:52:11Z marius $");
33
34/*
35 * Driver for Apple GMAC, Sun ERI and Sun GEM Ethernet controllers
36 */
37
38#if 0
39#define GEM_DEBUG
40#endif

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144#define GEM_BANK2_BITWAIT(sc, r, clr, set) \
145 gem_bitwait((sc), GEM_RES_BANK2, (r), (clr), (set))
146
147int
148gem_attach(struct gem_softc *sc)
149{
150 struct gem_txsoft *txs;
151 struct ifnet *ifp;
33
34/*
35 * Driver for Apple GMAC, Sun ERI and Sun GEM Ethernet controllers
36 */
37
38#if 0
39#define GEM_DEBUG
40#endif

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144#define GEM_BANK2_BITWAIT(sc, r, clr, set) \
145 gem_bitwait((sc), GEM_RES_BANK2, (r), (clr), (set))
146
147int
148gem_attach(struct gem_softc *sc)
149{
150 struct gem_txsoft *txs;
151 struct ifnet *ifp;
152 int error, i;
152 int error, i, phy;
153 uint32_t v;
154
155 if (bootverbose)
156 device_printf(sc->sc_dev, "flags=0x%x\n", sc->sc_flags);
157
158 /* Set up ifnet structure. */
159 ifp = sc->sc_ifp = if_alloc(IFT_ETHER);
160 if (ifp == NULL)

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289 v = GEM_BANK1_READ_4(sc, GEM_MIF_CONFIG);
290 if ((v & GEM_MIF_CONFIG_MDI1) != 0) {
291 v |= GEM_MIF_CONFIG_PHY_SEL;
292 GEM_BANK1_WRITE_4(sc, GEM_MIF_CONFIG, v);
293 GEM_BANK1_BARRIER(sc, GEM_MIF_CONFIG, 4,
294 BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
295 switch (sc->sc_variant) {
296 case GEM_SUN_ERI:
153 uint32_t v;
154
155 if (bootverbose)
156 device_printf(sc->sc_dev, "flags=0x%x\n", sc->sc_flags);
157
158 /* Set up ifnet structure. */
159 ifp = sc->sc_ifp = if_alloc(IFT_ETHER);
160 if (ifp == NULL)

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289 v = GEM_BANK1_READ_4(sc, GEM_MIF_CONFIG);
290 if ((v & GEM_MIF_CONFIG_MDI1) != 0) {
291 v |= GEM_MIF_CONFIG_PHY_SEL;
292 GEM_BANK1_WRITE_4(sc, GEM_MIF_CONFIG, v);
293 GEM_BANK1_BARRIER(sc, GEM_MIF_CONFIG, 4,
294 BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
295 switch (sc->sc_variant) {
296 case GEM_SUN_ERI:
297 sc->sc_phyad = GEM_PHYAD_EXTERNAL;
297 phy = GEM_PHYAD_EXTERNAL;
298 break;
299 default:
298 break;
299 default:
300 sc->sc_phyad = -1;
300 phy = MII_PHY_ANY;
301 break;
302 }
301 break;
302 }
303 error = mii_phy_probe(sc->sc_dev, &sc->sc_miibus,
304 gem_mediachange, gem_mediastatus);
303 error = mii_attach(sc->sc_dev, &sc->sc_miibus, ifp,
304 gem_mediachange, gem_mediastatus, BMSR_DEFCAPMASK, phy,
305 MII_OFFSET_ANY, 0);
305 }
306
307 /*
308 * Fall back on an internal PHY if no external PHY was found.
309 * Note that with Apple (K2) GMACs GEM_MIF_CONFIG_MDI0 can't be
310 * trusted when the firmware has powered down the chip.
311 */
312 if (error != 0 &&
313 ((v & GEM_MIF_CONFIG_MDI0) != 0 || GEM_IS_APPLE(sc))) {
314 v &= ~GEM_MIF_CONFIG_PHY_SEL;
315 GEM_BANK1_WRITE_4(sc, GEM_MIF_CONFIG, v);
316 GEM_BANK1_BARRIER(sc, GEM_MIF_CONFIG, 4,
317 BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
318 switch (sc->sc_variant) {
319 case GEM_SUN_ERI:
320 case GEM_APPLE_K2_GMAC:
306 }
307
308 /*
309 * Fall back on an internal PHY if no external PHY was found.
310 * Note that with Apple (K2) GMACs GEM_MIF_CONFIG_MDI0 can't be
311 * trusted when the firmware has powered down the chip.
312 */
313 if (error != 0 &&
314 ((v & GEM_MIF_CONFIG_MDI0) != 0 || GEM_IS_APPLE(sc))) {
315 v &= ~GEM_MIF_CONFIG_PHY_SEL;
316 GEM_BANK1_WRITE_4(sc, GEM_MIF_CONFIG, v);
317 GEM_BANK1_BARRIER(sc, GEM_MIF_CONFIG, 4,
318 BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
319 switch (sc->sc_variant) {
320 case GEM_SUN_ERI:
321 case GEM_APPLE_K2_GMAC:
321 sc->sc_phyad = GEM_PHYAD_INTERNAL;
322 phy = GEM_PHYAD_INTERNAL;
322 break;
323 case GEM_APPLE_GMAC:
323 break;
324 case GEM_APPLE_GMAC:
324 sc->sc_phyad = GEM_PHYAD_EXTERNAL;
325 phy = GEM_PHYAD_EXTERNAL;
325 break;
326 default:
326 break;
327 default:
327 sc->sc_phyad = -1;
328 phy = MII_PHY_ANY;
328 break;
329 }
329 break;
330 }
330 error = mii_phy_probe(sc->sc_dev, &sc->sc_miibus,
331 gem_mediachange, gem_mediastatus);
331 error = mii_attach(sc->sc_dev, &sc->sc_miibus, ifp,
332 gem_mediachange, gem_mediastatus, BMSR_DEFCAPMASK, phy,
333 MII_OFFSET_ANY, 0);
332 }
333
334 /*
335 * Try the external PCS SERDES if we didn't find any PHYs.
336 */
337 if (error != 0 && sc->sc_variant == GEM_SUN_GEM) {
338 serdes:
339 GEM_BANK1_WRITE_4(sc, GEM_MII_DATAPATH_MODE,
340 GEM_MII_DATAPATH_SERDES);
341 GEM_BANK1_BARRIER(sc, GEM_MII_DATAPATH_MODE, 4,
342 BUS_SPACE_BARRIER_WRITE);
343 GEM_BANK1_WRITE_4(sc, GEM_MII_SLINK_CONTROL,
344 GEM_MII_SLINK_LOOPBACK | GEM_MII_SLINK_EN_SYNC_D);
345 GEM_BANK1_BARRIER(sc, GEM_MII_SLINK_CONTROL, 4,
346 BUS_SPACE_BARRIER_WRITE);
347 GEM_BANK1_WRITE_4(sc, GEM_MII_CONFIG, GEM_MII_CONFIG_ENABLE);
348 GEM_BANK1_BARRIER(sc, GEM_MII_CONFIG, 4,
349 BUS_SPACE_BARRIER_WRITE);
350 sc->sc_flags |= GEM_SERDES;
334 }
335
336 /*
337 * Try the external PCS SERDES if we didn't find any PHYs.
338 */
339 if (error != 0 && sc->sc_variant == GEM_SUN_GEM) {
340 serdes:
341 GEM_BANK1_WRITE_4(sc, GEM_MII_DATAPATH_MODE,
342 GEM_MII_DATAPATH_SERDES);
343 GEM_BANK1_BARRIER(sc, GEM_MII_DATAPATH_MODE, 4,
344 BUS_SPACE_BARRIER_WRITE);
345 GEM_BANK1_WRITE_4(sc, GEM_MII_SLINK_CONTROL,
346 GEM_MII_SLINK_LOOPBACK | GEM_MII_SLINK_EN_SYNC_D);
347 GEM_BANK1_BARRIER(sc, GEM_MII_SLINK_CONTROL, 4,
348 BUS_SPACE_BARRIER_WRITE);
349 GEM_BANK1_WRITE_4(sc, GEM_MII_CONFIG, GEM_MII_CONFIG_ENABLE);
350 GEM_BANK1_BARRIER(sc, GEM_MII_CONFIG, 4,
351 BUS_SPACE_BARRIER_WRITE);
352 sc->sc_flags |= GEM_SERDES;
351 sc->sc_phyad = GEM_PHYAD_EXTERNAL;
352 error = mii_phy_probe(sc->sc_dev, &sc->sc_miibus,
353 gem_mediachange, gem_mediastatus);
353 error = mii_attach(sc->sc_dev, &sc->sc_miibus, ifp,
354 gem_mediachange, gem_mediastatus, BMSR_DEFCAPMASK,
355 GEM_PHYAD_EXTERNAL, MII_OFFSET_ANY, 0);
354 }
355 if (error != 0) {
356 }
357 if (error != 0) {
356 device_printf(sc->sc_dev, "PHY probe failed: %d\n", error);
358 device_printf(sc->sc_dev, "attaching PHYs failed\n");
357 goto fail_rxd;
358 }
359 sc->sc_mii = device_get_softc(sc->sc_miibus);
360
361 /*
362 * From this point forward, the attachment cannot fail. A failure
363 * before this point releases all resources that may have been
364 * allocated.

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1843 int n;
1844 uint32_t v;
1845
1846#ifdef GEM_DEBUG_PHY
1847 printf("%s: phy %d reg %d\n", __func__, phy, reg);
1848#endif
1849
1850 sc = device_get_softc(dev);
359 goto fail_rxd;
360 }
361 sc->sc_mii = device_get_softc(sc->sc_miibus);
362
363 /*
364 * From this point forward, the attachment cannot fail. A failure
365 * before this point releases all resources that may have been
366 * allocated.

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1845 int n;
1846 uint32_t v;
1847
1848#ifdef GEM_DEBUG_PHY
1849 printf("%s: phy %d reg %d\n", __func__, phy, reg);
1850#endif
1851
1852 sc = device_get_softc(dev);
1851 if (sc->sc_phyad != -1 && phy != sc->sc_phyad)
1852 return (0);
1853
1854 if ((sc->sc_flags & GEM_SERDES) != 0) {
1855 switch (reg) {
1856 case MII_BMCR:
1857 reg = GEM_MII_CONTROL;
1858 break;
1859 case MII_BMSR:
1860 reg = GEM_MII_STATUS;
1861 break;

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1904 int n;
1905 uint32_t v;
1906
1907#ifdef GEM_DEBUG_PHY
1908 printf("%s: phy %d reg %d val %x\n", phy, reg, val, __func__);
1909#endif
1910
1911 sc = device_get_softc(dev);
1853 if ((sc->sc_flags & GEM_SERDES) != 0) {
1854 switch (reg) {
1855 case MII_BMCR:
1856 reg = GEM_MII_CONTROL;
1857 break;
1858 case MII_BMSR:
1859 reg = GEM_MII_STATUS;
1860 break;

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1903 int n;
1904 uint32_t v;
1905
1906#ifdef GEM_DEBUG_PHY
1907 printf("%s: phy %d reg %d val %x\n", phy, reg, val, __func__);
1908#endif
1909
1910 sc = device_get_softc(dev);
1912 if (sc->sc_phyad != -1 && phy != sc->sc_phyad)
1913 return (0);
1914
1915 if ((sc->sc_flags & GEM_SERDES) != 0) {
1916 switch (reg) {
1917 case MII_BMSR:
1918 reg = GEM_MII_STATUS;
1919 break;
1920 case MII_BMCR:
1921 reg = GEM_MII_CONTROL;
1922 if ((val & GEM_MII_CONTROL_RESET) == 0)

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1987 uint32_t rxcfg, txcfg, v;
1988
1989 sc = device_get_softc(dev);
1990
1991 GEM_LOCK_ASSERT(sc, MA_OWNED);
1992
1993#ifdef GEM_DEBUG
1994 if ((sc->sc_ifp->if_flags & IFF_DEBUG) != 0)
1911 if ((sc->sc_flags & GEM_SERDES) != 0) {
1912 switch (reg) {
1913 case MII_BMSR:
1914 reg = GEM_MII_STATUS;
1915 break;
1916 case MII_BMCR:
1917 reg = GEM_MII_CONTROL;
1918 if ((val & GEM_MII_CONTROL_RESET) == 0)

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1983 uint32_t rxcfg, txcfg, v;
1984
1985 sc = device_get_softc(dev);
1986
1987 GEM_LOCK_ASSERT(sc, MA_OWNED);
1988
1989#ifdef GEM_DEBUG
1990 if ((sc->sc_ifp->if_flags & IFF_DEBUG) != 0)
1995 device_printf(sc->sc_dev, "%s: status change: PHY = %d\n",
1996 __func__, sc->sc_phyad);
1991 device_printf(sc->sc_dev, "%s: status change\n", __func__);
1997#endif
1998
1999 if ((sc->sc_mii->mii_media_status & IFM_ACTIVE) != 0 &&
2000 IFM_SUBTYPE(sc->sc_mii->mii_media_active) != IFM_NONE)
2001 sc->sc_flags |= GEM_LINK;
2002 else
2003 sc->sc_flags &= ~GEM_LINK;
2004

--- 256 unchanged lines hidden --- 		1992#endif
1993
1994 if ((sc->sc_mii->mii_media_status & IFM_ACTIVE) != 0 &&
1995 IFM_SUBTYPE(sc->sc_mii->mii_media_active) != IFM_NONE)
1996 sc->sc_flags |= GEM_LINK;
1997 else
1998 sc->sc_flags &= ~GEM_LINK;
1999

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