185e7d8e0SSøren Schmidt /*
285e7d8e0SSøren Schmidt * Copyright (c) 2022 Jared McNeill <jmcneill@invisible.ca>
385e7d8e0SSøren Schmidt * Copyright (c) 2022 Soren Schmidt <sos@deepcore.dk>
485e7d8e0SSøren Schmidt * All rights reserved.
585e7d8e0SSøren Schmidt *
685e7d8e0SSøren Schmidt * Redistribution and use in source and binary forms, with or without
785e7d8e0SSøren Schmidt * modification, are permitted provided that the following conditions
885e7d8e0SSøren Schmidt * are met:
985e7d8e0SSøren Schmidt * 1. Redistributions of source code must retain the above copyright
1085e7d8e0SSøren Schmidt * notice, this list of conditions and the following disclaimer.
1185e7d8e0SSøren Schmidt * 2. Redistributions in binary form must reproduce the above copyright
1285e7d8e0SSøren Schmidt * notice, this list of conditions and the following disclaimer in the
1385e7d8e0SSøren Schmidt * documentation and/or other materials provided with the distribution.
1485e7d8e0SSøren Schmidt *
1585e7d8e0SSøren Schmidt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
1685e7d8e0SSøren Schmidt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
1785e7d8e0SSøren Schmidt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1885e7d8e0SSøren Schmidt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
1985e7d8e0SSøren Schmidt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
2085e7d8e0SSøren Schmidt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
2185e7d8e0SSøren Schmidt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
2285e7d8e0SSøren Schmidt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
2385e7d8e0SSøren Schmidt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
2485e7d8e0SSøren Schmidt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2585e7d8e0SSøren Schmidt * POSSIBILITY OF SUCH DAMAGE.
2685e7d8e0SSøren Schmidt */
2785e7d8e0SSøren Schmidt
2885e7d8e0SSøren Schmidt /*
2985e7d8e0SSøren Schmidt * Motorcomm YT8511C / YT8511H Integrated 10/100/1000 Gigabit Ethernet phy
3085e7d8e0SSøren Schmidt */
3185e7d8e0SSøren Schmidt
3285e7d8e0SSøren Schmidt #include <sys/param.h>
3385e7d8e0SSøren Schmidt #include <sys/systm.h>
3485e7d8e0SSøren Schmidt #include <sys/kernel.h>
3585e7d8e0SSøren Schmidt #include <sys/socket.h>
3685e7d8e0SSøren Schmidt #include <sys/errno.h>
3785e7d8e0SSøren Schmidt #include <sys/module.h>
3885e7d8e0SSøren Schmidt #include <sys/bus.h>
3985e7d8e0SSøren Schmidt
4085e7d8e0SSøren Schmidt #include <net/if.h>
4185e7d8e0SSøren Schmidt #include <net/if_media.h>
4285e7d8e0SSøren Schmidt
4385e7d8e0SSøren Schmidt #include <dev/mii/mii.h>
4485e7d8e0SSøren Schmidt #include <dev/mii/miivar.h>
4585e7d8e0SSøren Schmidt
4685e7d8e0SSøren Schmidt #include "miibus_if.h"
4785e7d8e0SSøren Schmidt
4885e7d8e0SSøren Schmidt #define MCOMMPHY_OUI 0x000000
4985e7d8e0SSøren Schmidt #define MCOMMPHY_MODEL 0x10
5085e7d8e0SSøren Schmidt #define MCOMMPHY_REV 0x0a
5185e7d8e0SSøren Schmidt
5285e7d8e0SSøren Schmidt #define EXT_REG_ADDR 0x1e
5385e7d8e0SSøren Schmidt #define EXT_REG_DATA 0x1f
5485e7d8e0SSøren Schmidt
5585e7d8e0SSøren Schmidt /* Extended registers */
5685e7d8e0SSøren Schmidt #define PHY_CLOCK_GATING_REG 0x0c
5785e7d8e0SSøren Schmidt #define RX_CLK_DELAY_EN 0x0001
5885e7d8e0SSøren Schmidt #define CLK_25M_SEL 0x0006
5985e7d8e0SSøren Schmidt #define CLK_25M_SEL_125M 3
6085e7d8e0SSøren Schmidt #define TX_CLK_DELAY_SEL 0x00f0
6185e7d8e0SSøren Schmidt #define PHY_SLEEP_CONTROL1_REG 0x27
6285e7d8e0SSøren Schmidt #define PLLON_IN_SLP 0x4000
6385e7d8e0SSøren Schmidt
6485e7d8e0SSøren Schmidt #define LOWEST_SET_BIT(mask) ((((mask) - 1) & (mask)) ^ (mask))
6585e7d8e0SSøren Schmidt #define SHIFTIN(x, mask) ((x) * LOWEST_SET_BIT(mask))
6685e7d8e0SSøren Schmidt
6785e7d8e0SSøren Schmidt static int
mcommphy_service(struct mii_softc * sc,struct mii_data * mii,int cmd)6885e7d8e0SSøren Schmidt mcommphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
6985e7d8e0SSøren Schmidt {
7085e7d8e0SSøren Schmidt switch (cmd) {
7185e7d8e0SSøren Schmidt case MII_POLLSTAT:
7285e7d8e0SSøren Schmidt break;
7385e7d8e0SSøren Schmidt
7485e7d8e0SSøren Schmidt case MII_MEDIACHG:
7585e7d8e0SSøren Schmidt mii_phy_setmedia(sc);
7685e7d8e0SSøren Schmidt break;
7785e7d8e0SSøren Schmidt
7885e7d8e0SSøren Schmidt case MII_TICK:
7985e7d8e0SSøren Schmidt if (mii_phy_tick(sc) == EJUSTRETURN)
8085e7d8e0SSøren Schmidt return (0);
8185e7d8e0SSøren Schmidt break;
8285e7d8e0SSøren Schmidt }
8385e7d8e0SSøren Schmidt
8485e7d8e0SSøren Schmidt /* Update the media status. */
8585e7d8e0SSøren Schmidt PHY_STATUS(sc);
8685e7d8e0SSøren Schmidt
8785e7d8e0SSøren Schmidt /* Callback if something changed. */
8885e7d8e0SSøren Schmidt mii_phy_update(sc, cmd);
8985e7d8e0SSøren Schmidt
9085e7d8e0SSøren Schmidt return (0);
9185e7d8e0SSøren Schmidt }
9285e7d8e0SSøren Schmidt
9385e7d8e0SSøren Schmidt static const struct mii_phy_funcs mcommphy_funcs = {
9485e7d8e0SSøren Schmidt mcommphy_service,
9585e7d8e0SSøren Schmidt ukphy_status,
9685e7d8e0SSøren Schmidt mii_phy_reset
9785e7d8e0SSøren Schmidt };
9885e7d8e0SSøren Schmidt
9985e7d8e0SSøren Schmidt static int
mcommphy_probe(device_t dev)10085e7d8e0SSøren Schmidt mcommphy_probe(device_t dev)
10185e7d8e0SSøren Schmidt {
10285e7d8e0SSøren Schmidt struct mii_attach_args *ma = device_get_ivars(dev);
10385e7d8e0SSøren Schmidt
10485e7d8e0SSøren Schmidt /*
10585e7d8e0SSøren Schmidt * The YT8511C reports an OUI of 0. Best we can do here is to match
10685e7d8e0SSøren Schmidt * exactly the contents of the PHY identification registers.
10785e7d8e0SSøren Schmidt */
10885e7d8e0SSøren Schmidt if (MII_OUI(ma->mii_id1, ma->mii_id2) == MCOMMPHY_OUI &&
10985e7d8e0SSøren Schmidt MII_MODEL(ma->mii_id2) == MCOMMPHY_MODEL &&
11085e7d8e0SSøren Schmidt MII_REV(ma->mii_id2) == MCOMMPHY_REV) {
11185e7d8e0SSøren Schmidt device_set_desc(dev, "Motorcomm YT8511 media interface");
11285e7d8e0SSøren Schmidt return BUS_PROBE_DEFAULT;
11385e7d8e0SSøren Schmidt }
11485e7d8e0SSøren Schmidt return (ENXIO);
11585e7d8e0SSøren Schmidt }
11685e7d8e0SSøren Schmidt
11785e7d8e0SSøren Schmidt static int
mcommphy_attach(device_t dev)11885e7d8e0SSøren Schmidt mcommphy_attach(device_t dev)
11985e7d8e0SSøren Schmidt {
12085e7d8e0SSøren Schmidt struct mii_softc *sc = device_get_softc(dev);
12185e7d8e0SSøren Schmidt uint16_t oldaddr, data;
12285e7d8e0SSøren Schmidt
12385e7d8e0SSøren Schmidt mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &mcommphy_funcs, 0);
12485e7d8e0SSøren Schmidt
12585e7d8e0SSøren Schmidt PHY_RESET(sc);
12685e7d8e0SSøren Schmidt
12785e7d8e0SSøren Schmidt /* begin chip stuff */
12885e7d8e0SSøren Schmidt oldaddr = PHY_READ(sc, EXT_REG_ADDR);
12985e7d8e0SSøren Schmidt
13085e7d8e0SSøren Schmidt PHY_WRITE(sc, EXT_REG_ADDR, PHY_CLOCK_GATING_REG);
13185e7d8e0SSøren Schmidt data = PHY_READ(sc, EXT_REG_DATA);
13285e7d8e0SSøren Schmidt data &= ~CLK_25M_SEL;
133abd9758fSrilysh data |= SHIFTIN(CLK_25M_SEL_125M, CLK_25M_SEL);
13485e7d8e0SSøren Schmidt if (sc->mii_flags & MIIF_RX_DELAY) {
13585e7d8e0SSøren Schmidt data |= RX_CLK_DELAY_EN;
13685e7d8e0SSøren Schmidt } else {
13785e7d8e0SSøren Schmidt data &= ~RX_CLK_DELAY_EN;
13885e7d8e0SSøren Schmidt }
13985e7d8e0SSøren Schmidt data &= ~TX_CLK_DELAY_SEL;
14085e7d8e0SSøren Schmidt if (sc->mii_flags & MIIF_TX_DELAY) {
14185e7d8e0SSøren Schmidt data |= SHIFTIN(0xf, TX_CLK_DELAY_SEL);
14285e7d8e0SSøren Schmidt } else {
14385e7d8e0SSøren Schmidt data |= SHIFTIN(0x2, TX_CLK_DELAY_SEL);
14485e7d8e0SSøren Schmidt }
14585e7d8e0SSøren Schmidt PHY_WRITE(sc, EXT_REG_DATA, data);
14685e7d8e0SSøren Schmidt
14785e7d8e0SSøren Schmidt PHY_WRITE(sc, EXT_REG_ADDR, PHY_SLEEP_CONTROL1_REG);
14885e7d8e0SSøren Schmidt data = PHY_READ(sc, EXT_REG_DATA);
14985e7d8e0SSøren Schmidt data |= PLLON_IN_SLP;
15085e7d8e0SSøren Schmidt PHY_WRITE(sc, EXT_REG_DATA, data);
15185e7d8e0SSøren Schmidt
15285e7d8e0SSøren Schmidt PHY_WRITE(sc, EXT_REG_ADDR, oldaddr);
15385e7d8e0SSøren Schmidt /* end chip stuff */
15485e7d8e0SSøren Schmidt
15585e7d8e0SSøren Schmidt sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
15685e7d8e0SSøren Schmidt if (sc->mii_capabilities & BMSR_EXTSTAT)
15785e7d8e0SSøren Schmidt sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
15885e7d8e0SSøren Schmidt device_printf(dev, " ");
15985e7d8e0SSøren Schmidt mii_phy_add_media(sc);
16085e7d8e0SSøren Schmidt printf("\n");
16185e7d8e0SSøren Schmidt
16285e7d8e0SSøren Schmidt MIIBUS_MEDIAINIT(sc->mii_dev);
16385e7d8e0SSøren Schmidt
16485e7d8e0SSøren Schmidt return (0);
16585e7d8e0SSøren Schmidt }
16685e7d8e0SSøren Schmidt
16785e7d8e0SSøren Schmidt
16885e7d8e0SSøren Schmidt static device_method_t mcommphy_methods[] = {
16985e7d8e0SSøren Schmidt /* device interface */
17085e7d8e0SSøren Schmidt DEVMETHOD(device_probe, mcommphy_probe),
17185e7d8e0SSøren Schmidt DEVMETHOD(device_attach, mcommphy_attach),
17285e7d8e0SSøren Schmidt DEVMETHOD(device_detach, mii_phy_detach),
17385e7d8e0SSøren Schmidt DEVMETHOD(device_shutdown, bus_generic_shutdown),
17485e7d8e0SSøren Schmidt DEVMETHOD_END
17585e7d8e0SSøren Schmidt };
17685e7d8e0SSøren Schmidt
17785e7d8e0SSøren Schmidt static driver_t mcommphy_driver = {
17885e7d8e0SSøren Schmidt "mcommphy",
17985e7d8e0SSøren Schmidt mcommphy_methods,
18085e7d8e0SSøren Schmidt sizeof(struct mii_softc)
18185e7d8e0SSøren Schmidt };
18285e7d8e0SSøren Schmidt
18385e7d8e0SSøren Schmidt DRIVER_MODULE(mcommphy, miibus, mcommphy_driver, 0, 0);
184