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Improve RGMII TX / RX delay handling, from OpenBSD.

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This commit is contained in:
jmcneill 2020-05-25 19:49:28 +00:00
parent 207da896f9
commit a004389994
4 changed files with 36 additions and 9 deletions
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6
sys/dev/acpi/genet_acpi.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: genet_acpi.c,v 1.1 2020/02/22 02:28:06 jmcneill Exp $ */
/* $NetBSD: genet_acpi.c,v 1.2 2020/05/25 19:49:28 jmcneill Exp $ */
/*-
* Copyright (c) 2020 Jared McNeill <jmcneill@invisible.ca>
@ -29,7 +29,7 @@
#include "opt_net_mpsafe.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: genet_acpi.c,v 1.1 2020/02/22 02:28:06 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: genet_acpi.c,v 1.2 2020/05/25 19:49:28 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@ -131,6 +131,8 @@ genet_acpi_attach(device_t parent, device_t self, void *aux)
sc->sc_phy_mode = GENET_PHY_MODE_RGMII_RXID;
else if (strcmp(phy_mode, "rgmii-txid") == 0)
sc->sc_phy_mode = GENET_PHY_MODE_RGMII_TXID;
else if (strcmp(phy_mode, "rgmii-id") == 0)
sc->sc_phy_mode = GENET_PHY_MODE_RGMII_ID;
else if (strcmp(phy_mode, "rgmii") == 0)
sc->sc_phy_mode = GENET_PHY_MODE_RGMII;
else {

6
sys/dev/fdt/genet_fdt.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: genet_fdt.c,v 1.1 2020/02/22 00:28:35 jmcneill Exp $ */
/* $NetBSD: genet_fdt.c,v 1.2 2020/05/25 19:49:28 jmcneill Exp $ */
/*-
* Copyright (c) 2020 Jared McNeill <jmcneill@invisible.ca>
@ -29,7 +29,7 @@
#include "opt_net_mpsafe.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: genet_fdt.c,v 1.1 2020/02/22 00:28:35 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: genet_fdt.c,v 1.2 2020/05/25 19:49:28 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@ -108,6 +108,8 @@ genet_fdt_attach(device_t parent, device_t self, void *aux)
sc->sc_phy_mode = GENET_PHY_MODE_RGMII_RXID;
else if (strcmp(phy_mode, "rgmii-txid") == 0)
sc->sc_phy_mode = GENET_PHY_MODE_RGMII_TXID;
else if (strcmp(phy_mode, "rgmii-id") == 0)
sc->sc_phy_mode = GENET_PHY_MODE_RGMII_ID;
else if (strcmp(phy_mode, "rgmii") == 0)
sc->sc_phy_mode = GENET_PHY_MODE_RGMII;
else {

30
sys/dev/ic/bcmgenet.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: bcmgenet.c,v 1.5 2020/03/29 13:20:04 jmcneill Exp $ */
/* $NetBSD: bcmgenet.c,v 1.6 2020/05/25 19:49:28 jmcneill Exp $ */
/*-
* Copyright (c) 2020 Jared McNeill <jmcneill@invisible.ca>
@ -34,7 +34,7 @@
#include "opt_ddb.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: bcmgenet.c,v 1.5 2020/03/29 13:20:04 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: bcmgenet.c,v 1.6 2020/05/25 19:49:28 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@ -165,6 +165,8 @@ genet_update_link(struct genet_softc *sc)
val |= GENET_EXT_RGMII_OOB_RGMII_MODE_EN;
if (sc->sc_phy_mode == GENET_PHY_MODE_RGMII)
val |= GENET_EXT_RGMII_OOB_ID_MODE_DISABLE;
else
val &= ~GENET_EXT_RGMII_OOB_ID_MODE_DISABLE;
WR4(sc, GENET_EXT_RGMII_OOB_CTRL, val);
val = RD4(sc, GENET_UMAC_CMD);
@ -507,9 +509,13 @@ genet_init_locked(struct genet_softc *sc)
return 0;
if (sc->sc_phy_mode == GENET_PHY_MODE_RGMII ||
sc->sc_phy_mode == GENET_PHY_MODE_RGMII_RXID)
sc->sc_phy_mode == GENET_PHY_MODE_RGMII_ID ||
sc->sc_phy_mode == GENET_PHY_MODE_RGMII_RXID ||
sc->sc_phy_mode == GENET_PHY_MODE_RGMII_TXID)
WR4(sc, GENET_SYS_PORT_CTRL,
GENET_SYS_PORT_MODE_EXT_GPHY);
else
WR4(sc, GENET_SYS_PORT_CTRL, 0);
/* Write hardware address */
val = enaddr[3] | (enaddr[2] << 8) | (enaddr[1] << 16) |
@ -908,6 +914,7 @@ genet_attach(struct genet_softc *sc)
struct ifnet *ifp = &sc->sc_ec.ec_if;
uint8_t eaddr[ETHER_ADDR_LEN];
u_int maj, min;
int mii_flags = 0;
const uint32_t rev = RD4(sc, GENET_SYS_REV_CTRL);
min = __SHIFTOUT(rev, SYS_REV_MINOR);
@ -922,6 +929,21 @@ genet_attach(struct genet_softc *sc)
return ENXIO;
}
switch (sc->sc_phy_mode) {
case GENET_PHY_MODE_RGMII_TXID:
mii_flags |= MIIF_TXID;
break;
case GENET_PHY_MODE_RGMII_RXID:
mii_flags |= MIIF_RXID;
break;
case GENET_PHY_MODE_RGMII_ID:
mii_flags |= MIIF_RXID | MIIF_TXID;
break;
case GENET_PHY_MODE_RGMII:
default:
break;
}
aprint_naive("\n");
aprint_normal(": GENETv%d.%d\n", maj, min);
@ -968,7 +990,7 @@ genet_attach(struct genet_softc *sc)
mii->mii_writereg = genet_mii_writereg;
mii->mii_statchg = genet_mii_statchg;
mii_attach(sc->sc_dev, mii, 0xffffffff, sc->sc_phy_id, MII_OFFSET_ANY,
0);
mii_flags);
if (LIST_EMPTY(&mii->mii_phys)) {
aprint_error_dev(sc->sc_dev, "no PHY found!\n");

3
sys/dev/ic/bcmgenetvar.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: bcmgenetvar.h,v 1.1 2020/02/22 00:28:35 jmcneill Exp $ */
/* $NetBSD: bcmgenetvar.h,v 1.2 2020/05/25 19:49:28 jmcneill Exp $ */
/*-
* Copyright (c) 2020 Jared McNeill <jmcneill@invisible.ca>
@ -37,6 +37,7 @@
enum genet_phy_mode {
GENET_PHY_MODE_RGMII,
GENET_PHY_MODE_RGMII_ID,
GENET_PHY_MODE_RGMII_TXID,
GENET_PHY_MODE_RGMII_RXID,
};