File: [local] / sys / dev / mii / ciphy.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:12:46 2008 UTC (16 years, 3 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
|
/* $OpenBSD: ciphy.c,v 1.18 2006/12/31 15:04:33 krw Exp $ */
/* $FreeBSD: ciphy.c,v 1.1 2004/09/10 20:57:45 wpaul Exp $ */
/*
* Copyright (c) 2004
* Bill Paul <wpaul@windriver.com>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Driver for the Cicada CS8201 10/100/1000 copper PHY.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <net/if.h>
#include <net/if_media.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#include <dev/pci/pcivar.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/mii/miidevs.h>
#include <dev/mii/ciphyreg.h>
#include <machine/bus.h>
int ciphymatch(struct device *, void *, void *);
void ciphyattach(struct device *, struct device *, void *);
struct cfattach ciphy_ca = {
sizeof(struct mii_softc),
ciphymatch,
ciphyattach,
mii_phy_detach,
mii_phy_activate
};
struct cfdriver ciphy_cd = {
NULL, "ciphy", DV_DULL
};
int ciphy_service(struct mii_softc *, struct mii_data *, int);
void ciphy_status(struct mii_softc *);
void ciphy_reset(struct mii_softc *);
void ciphy_fixup(struct mii_softc *);
const struct mii_phy_funcs ciphy_funcs = {
ciphy_service, ciphy_status, ciphy_reset,
};
static const struct mii_phydesc ciphys[] = {
{ MII_OUI_CICADA, MII_MODEL_CICADA_CS8201,
MII_STR_CICADA_CS8201 },
{ MII_OUI_CICADA, MII_MODEL_CICADA_CS8201A,
MII_STR_CICADA_CS8201A },
{ MII_OUI_CICADA, MII_MODEL_CICADA_CS8201B,
MII_STR_CICADA_CS8201B },
{ MII_OUI_xxCICADA, MII_MODEL_xxCICADA_CS8201B,
MII_STR_xxCICADA_CS8201B },
{ 0, 0,
NULL },
};
int
ciphymatch(struct device *parent, void *match, void *aux)
{
struct mii_attach_args *ma = aux;
if (mii_phy_match(ma, ciphys) != NULL)
return (10);
return (0);
}
void
ciphyattach(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;
const struct mii_phydesc *mpd;
mpd = mii_phy_match(ma, ciphys);
printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
sc->mii_inst = mii->mii_instance;
sc->mii_phy = ma->mii_phyno;
sc->mii_funcs = &ciphy_funcs;
sc->mii_pdata = mii;
sc->mii_flags = ma->mii_flags;
sc->mii_anegticks = MII_ANEGTICKS;
sc->mii_flags |= MIIF_NOISOLATE;
PHY_RESET(sc);
sc->mii_capabilities =
PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
if (sc->mii_capabilities & BMSR_EXTSTAT)
sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
if ((sc->mii_capabilities & BMSR_MEDIAMASK) ||
(sc->mii_capabilities & EXTSR_MEDIAMASK))
mii_phy_add_media(sc);
}
int
ciphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
int reg, speed, gig;
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;
ciphy_fixup(sc); /* XXX hardware bug work-around */
switch (IFM_SUBTYPE(ife->ifm_media)) {
case IFM_AUTO:
if (mii_phy_auto(sc, 0) == EJUSTRETURN)
return (0);
break;
case IFM_1000_T:
speed = CIPHY_S1000;
goto setit;
case IFM_100_TX:
speed = CIPHY_S100;
goto setit;
case IFM_10_T:
speed = CIPHY_S10;
setit:
if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
speed |= CIPHY_BMCR_FDX;
gig = CIPHY_1000CTL_AFD;
} else {
gig = CIPHY_1000CTL_AHD;
}
PHY_WRITE(sc, CIPHY_MII_1000CTL, 0);
PHY_WRITE(sc, CIPHY_MII_BMCR, speed);
PHY_WRITE(sc, CIPHY_MII_ANAR, CIPHY_SEL_TYPE);
if (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T)
break;
PHY_WRITE(sc, CIPHY_MII_1000CTL, gig);
PHY_WRITE(sc, CIPHY_MII_BMCR,
speed|CIPHY_BMCR_AUTOEN|CIPHY_BMCR_STARTNEG);
if (mii->mii_media.ifm_media & IFM_ETH_MASTER)
gig |= CIPHY_1000CTL_MSE|CIPHY_1000CTL_MSC;
PHY_WRITE(sc, CIPHY_MII_1000CTL, gig);
break;
case IFM_NONE:
PHY_WRITE(sc, MII_BMCR, BMCR_ISO|BMCR_PDOWN);
break;
case IFM_100_T4:
default:
return (EINVAL);
}
break;
case MII_TICK:
/*
* If we're not currently selected, just return.
*/
if (IFM_INST(ife->ifm_media) != sc->mii_inst)
return (0);
if (mii_phy_tick(sc) == EJUSTRETURN)
return (0);
break;
}
/* Update the media status. */
mii_phy_status(sc);
/*
* Callback if something changed. Note that we need to poke
* apply fixups for certain PHY revs.
*/
if (sc->mii_media_active != mii->mii_media_active ||
sc->mii_media_status != mii->mii_media_status ||
cmd == MII_MEDIACHG) {
ciphy_fixup(sc);
}
mii_phy_update(sc, cmd);
return (0);
}
void
ciphy_status(struct mii_softc *sc)
{
struct mii_data *mii = sc->mii_pdata;
int bmsr, bmcr, gsr;
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, CIPHY_MII_BMCR);
if (bmcr & CIPHY_BMCR_LOOP)
mii->mii_media_active |= IFM_LOOP;
if (bmcr & CIPHY_BMCR_AUTOEN) {
if ((bmsr & CIPHY_BMSR_ACOMP) == 0) {
/* Erg, still trying, I guess... */
mii->mii_media_active |= IFM_NONE;
return;
}
}
bmsr = PHY_READ(sc, CIPHY_MII_AUXCSR);
switch (bmsr & CIPHY_AUXCSR_SPEED) {
case CIPHY_SPEED10:
mii->mii_media_active |= IFM_10_T;
break;
case CIPHY_SPEED100:
mii->mii_media_active |= IFM_100_TX;
break;
case CIPHY_SPEED1000:
mii->mii_media_active |= IFM_1000_T;
break;
default:
printf("%s: unknown PHY speed %x\n",
sc->mii_dev.dv_xname, bmsr & CIPHY_AUXCSR_SPEED);
break;
}
if (bmsr & CIPHY_AUXCSR_FDX)
mii->mii_media_active |= IFM_FDX;
else
mii->mii_media_active |= IFM_HDX;
gsr = PHY_READ(sc, CIPHY_MII_1000STS);
if ((IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) &&
gsr & CIPHY_1000STS_MSR)
mii->mii_media_active |= IFM_ETH_MASTER;
}
void
ciphy_reset(struct mii_softc *sc)
{
mii_phy_reset(sc);
DELAY(1000);
}
#define PHY_SETBIT(x, y, z) \
PHY_WRITE(x, y, (PHY_READ(x, y) | (z)))
#define PHY_CLRBIT(x, y, z) \
PHY_WRITE(x, y, (PHY_READ(x, y) & ~(z)))
void
ciphy_fixup(struct mii_softc *sc)
{
uint16_t model;
uint16_t status, speed;
model = MII_MODEL(PHY_READ(sc, CIPHY_MII_PHYIDR2));
status = PHY_READ(sc, CIPHY_MII_AUXCSR);
speed = status & CIPHY_AUXCSR_SPEED;
if (strcmp(sc->mii_dev.dv_parent->dv_cfdata->cf_driver->cd_name, "nfe") == 0) {
/* need to set for 2.5V RGMII for NVIDIA adapters */
PHY_SETBIT(sc, CIPHY_MII_ECTL1, CIPHY_INTSEL_RGMII);
PHY_SETBIT(sc, CIPHY_MII_ECTL1, CIPHY_IOVOL_2500MV);
}
switch (model) {
case MII_MODEL_CICADA_CS8201:
/* Turn off "aux mode" (whatever that means) */
PHY_SETBIT(sc, CIPHY_MII_AUXCSR, CIPHY_AUXCSR_MDPPS);
/*
* Work around speed polling bug in VT3119/VT3216
* when using MII in full duplex mode.
*/
if ((speed == CIPHY_SPEED10 || speed == CIPHY_SPEED100) &&
(status & CIPHY_AUXCSR_FDX)) {
PHY_SETBIT(sc, CIPHY_MII_10BTCSR, CIPHY_10BTCSR_ECHO);
} else {
PHY_CLRBIT(sc, CIPHY_MII_10BTCSR, CIPHY_10BTCSR_ECHO);
}
/* Enable link/activity LED blink. */
PHY_SETBIT(sc, CIPHY_MII_LED, CIPHY_LED_LINKACTBLINK);
break;
case MII_MODEL_CICADA_CS8201A:
case MII_MODEL_CICADA_CS8201B:
/*
* Work around speed polling bug in VT3119/VT3216
* when using MII in full duplex mode.
*/
if ((speed == CIPHY_SPEED10 || speed == CIPHY_SPEED100) &&
(status & CIPHY_AUXCSR_FDX)) {
PHY_SETBIT(sc, CIPHY_MII_10BTCSR, CIPHY_10BTCSR_ECHO);
} else {
PHY_CLRBIT(sc, CIPHY_MII_10BTCSR, CIPHY_10BTCSR_ECHO);
}
break;
default:
printf("%s: unknown CICADA PHY model %x\n",
sc->mii_dev.dv_xname, model);
break;
}
}