/* $OpenBSD: rktcphy.c,v 1.1 2021/06/29 12:43:09 patrick Exp $ */ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2019 Emmanuel Vadot * * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS 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. */ /* * Rockchip PHY TYPEC */ #include #include #include #include #include #include #include #include #include #include #define GRF_USB3OTG_BASE(x) (0x2430 + (0x10 * x)) #define GRF_USB3OTG_CON0(x) (GRF_USB3OTG_BASE(x) + 0x0) #define GRF_USB3OTG_CON1(x) (GRF_USB3OTG_BASE(x) + 0x4) #define USB3OTG_CON1_U3_DIS (1 << 0) #define GRF_USB3PHY_BASE(x) (0x0e580 + (0xc * (x))) #define GRF_USB3PHY_CON0(x) (GRF_USB3PHY_BASE(x) + 0x0) #define USB3PHY_CON0_USB2_ONLY (1 << 3) #define GRF_USB3PHY_CON1(x) (GRF_USB3PHY_BASE(x) + 0x4) #define GRF_USB3PHY_CON2(x) (GRF_USB3PHY_BASE(x) + 0x8) #define GRF_USB3PHY_STATUS0 0x0e5c0 #define GRF_USB3PHY_STATUS1 0x0e5c4 #define CMN_PLL0_VCOCAL_INIT (0x84 << 2) #define CMN_PLL0_VCOCAL_ITER (0x85 << 2) #define CMN_PLL0_INTDIV (0x94 << 2) #define CMN_PLL0_FRACDIV (0x95 << 2) #define CMN_PLL0_HIGH_THR (0x96 << 2) #define CMN_PLL0_DSM_DIAG (0x97 << 2) #define CMN_PLL0_SS_CTRL1 (0x98 << 2) #define CMN_PLL0_SS_CTRL2 (0x99 << 2) #define CMN_DIAG_PLL0_FBH_OVRD (0x1c0 << 2) #define CMN_DIAG_PLL0_FBL_OVRD (0x1c1 << 2) #define CMN_DIAG_PLL0_OVRD (0x1c2 << 2) #define CMN_DIAG_PLL0_V2I_TUNE (0x1c5 << 2) #define CMN_DIAG_PLL0_CP_TUNE (0x1c6 << 2) #define CMN_DIAG_PLL0_LF_PROG (0x1c7 << 2) #define CMN_DIAG_HSCLK_SEL (0x1e0 << 2) #define CMN_DIAG_HSCLK_SEL_PLL_CONFIG 0x30 #define CMN_DIAG_HSCLK_SEL_PLL_MASK 0x33 #define TX_TXCC_MGNFS_MULT_000(lane) ((0x4050 | ((lane) << 9)) << 2) #define XCVR_DIAG_BIDI_CTRL(lane) ((0x40e8 | ((lane) << 9)) << 2) #define XCVR_DIAG_LANE_FCM_EN_MGN(lane) ((0x40f2 | ((lane) << 9)) << 2) #define TX_PSC_A0(lane) ((0x4100 | ((lane) << 9)) << 2) #define TX_PSC_A1(lane) ((0x4101 | ((lane) << 9)) << 2) #define TX_PSC_A2(lane) ((0x4102 | ((lane) << 9)) << 2) #define TX_PSC_A3(lane) ((0x4103 | ((lane) << 9)) << 2) #define TX_RCVDET_EN_TMR(lane) ((0x4122 | ((lane) << 9)) << 2) #define TX_RCVDET_ST_TMR(lane) ((0x4123 | ((lane) << 9)) << 2) #define RX_PSC_A0(lane) ((0x8000 | ((lane) << 9)) << 2) #define RX_PSC_A1(lane) ((0x8001 | ((lane) << 9)) << 2) #define RX_PSC_A2(lane) ((0x8002 | ((lane) << 9)) << 2) #define RX_PSC_A3(lane) ((0x8003 | ((lane) << 9)) << 2) #define RX_PSC_CAL(lane) ((0x8006 | ((lane) << 9)) << 2) #define RX_PSC_RDY(lane) ((0x8007 | ((lane) << 9)) << 2) #define RX_SIGDET_HL_FILT_TMR(lane) ((0x8090 | ((lane) << 9)) << 2) #define RX_REE_CTRL_DATA_MASK(lane) ((0x81bb | ((lane) << 9)) << 2) #define RX_DIAG_SIGDET_TUNE(lane) ((0x81dc | ((lane) << 9)) << 2) #define PMA_LANE_CFG (0xc000 << 2) #define PIN_ASSIGN_D_F 0x5100 #define DP_MODE_CTL (0xc008 << 2) #define DP_MODE_ENTER_A2 0xc104 #define PMA_CMN_CTRL1 (0xc800 << 2) #define PMA_CMN_CTRL1_READY (1 << 0) #define HREAD4(sc, reg) \ (bus_space_read_4((sc)->sc_iot, (sc)->sc_ioh, (reg))) #define HWRITE4(sc, reg, val) \ bus_space_write_4((sc)->sc_iot, (sc)->sc_ioh, (reg), (val)) #define HSET4(sc, reg, bits) \ HWRITE4((sc), (reg), HREAD4((sc), (reg)) | (bits)) #define HCLR4(sc, reg, bits) \ HWRITE4((sc), (reg), HREAD4((sc), (reg)) & ~(bits)) struct rktcphy_softc { struct device sc_dev; bus_space_tag_t sc_iot; bus_space_handle_t sc_ioh; int sc_node; struct regmap *sc_grf; struct phy_device sc_pd; int sc_mode; int sc_phy_ctrl_id; }; int rktcphy_match(struct device *, void *, void *); void rktcphy_attach(struct device *, struct device *, void *); void rktcphy_set_usb2_only(struct rktcphy_softc *, int); int rktcphy_enable(void *, uint32_t *); struct cfattach rktcphy_ca = { sizeof (struct rktcphy_softc), rktcphy_match, rktcphy_attach }; struct cfdriver rktcphy_cd = { NULL, "rktcphy", DV_DULL }; int rktcphy_match(struct device *parent, void *match, void *aux) { struct fdt_attach_args *faa = aux; return OF_is_compatible(faa->fa_node, "rockchip,rk3399-typec-phy"); } void rktcphy_attach(struct device *parent, struct device *self, void *aux) { struct rktcphy_softc *sc = (struct rktcphy_softc *)self; struct fdt_attach_args *faa = aux; uint32_t grf; int usb3; if (faa->fa_nreg < 1) { printf(": no registers\n"); return; } sc->sc_node = faa->fa_node; sc->sc_iot = faa->fa_iot; if (bus_space_map(sc->sc_iot, faa->fa_reg[0].addr, faa->fa_reg[0].size, 0, &sc->sc_ioh)) { printf(": can't map registers\n"); return; } /* * Find out which phy we are. There is no property for this so we need * to know the address to use the correct GRF registers. */ switch (faa->fa_reg[0].addr) { case 0xff7c0000: sc->sc_phy_ctrl_id = 0; break; case 0xff800000: sc->sc_phy_ctrl_id = 1; break; default: printf(": unknown address 0x%llx\n", faa->fa_reg[0].addr); return; } grf = OF_getpropint(sc->sc_node, "rockchip,grf", 0); sc->sc_grf = regmap_byphandle(grf); reset_assert(sc->sc_node, "uphy"); reset_assert(sc->sc_node, "uphy-pipe"); reset_assert(sc->sc_node, "uphy-tcphy"); clock_set_assigned(sc->sc_node); /* Only usb3 port is supported right now */ usb3 = OF_getnodebyname(sc->sc_node, "usb3-port"); if (usb3 == 0) { printf(": no usb3-port child node\n"); return; } printf("\n"); sc->sc_pd.pd_node = usb3; sc->sc_pd.pd_cookie = sc; sc->sc_pd.pd_enable = rktcphy_enable; phy_register(&sc->sc_pd); } void rktcphy_set_usb2_only(struct rktcphy_softc *sc, int usb2only) { uint32_t reg; /* Disable usb3tousb2 only */ reg = regmap_read_4(sc->sc_grf, GRF_USB3PHY_CON0(sc->sc_phy_ctrl_id)); if (usb2only) reg |= USB3PHY_CON0_USB2_ONLY; else reg &= ~USB3PHY_CON0_USB2_ONLY; /* Write Mask */ reg |= (USB3PHY_CON0_USB2_ONLY) << 16; regmap_write_4(sc->sc_grf, GRF_USB3PHY_CON0(sc->sc_phy_ctrl_id), reg); /* Enable the USB3 Super Speed port */ reg = regmap_read_4(sc->sc_grf, GRF_USB3OTG_CON1(sc->sc_phy_ctrl_id)); if (usb2only) reg |= USB3OTG_CON1_U3_DIS; else reg &= ~USB3OTG_CON1_U3_DIS; /* Write Mask */ reg |= (USB3OTG_CON1_U3_DIS) << 16; regmap_write_4(sc->sc_grf, GRF_USB3OTG_CON1(sc->sc_phy_ctrl_id), reg); } int rktcphy_enable(void *cookie, uint32_t *cells) { struct rktcphy_softc *sc = cookie; uint32_t reg; int i; rktcphy_set_usb2_only(sc, false); clock_enable(sc->sc_node, "tcpdcore"); clock_enable(sc->sc_node, "tcpdphy-ref"); reset_deassert(sc->sc_node, "uphy-tcphy"); /* 24M configuration, magic values from rockchip */ HWRITE4(sc, PMA_CMN_CTRL1, 0x830); for (i = 0; i < 4; i++) { HWRITE4(sc, XCVR_DIAG_LANE_FCM_EN_MGN(i), 0x90); HWRITE4(sc, TX_RCVDET_EN_TMR(i), 0x960); HWRITE4(sc, TX_RCVDET_ST_TMR(i), 0x30); } reg = HREAD4(sc, CMN_DIAG_HSCLK_SEL); reg &= ~CMN_DIAG_HSCLK_SEL_PLL_MASK; reg |= CMN_DIAG_HSCLK_SEL_PLL_CONFIG; HWRITE4(sc, CMN_DIAG_HSCLK_SEL, reg); /* PLL configuration, magic values from rockchip */ HWRITE4(sc, CMN_PLL0_VCOCAL_INIT, 0xf0); HWRITE4(sc, CMN_PLL0_VCOCAL_ITER, 0x18); HWRITE4(sc, CMN_PLL0_INTDIV, 0xd0); HWRITE4(sc, CMN_PLL0_FRACDIV, 0x4a4a); HWRITE4(sc, CMN_PLL0_HIGH_THR, 0x34); HWRITE4(sc, CMN_PLL0_SS_CTRL1, 0x1ee); HWRITE4(sc, CMN_PLL0_SS_CTRL2, 0x7f03); HWRITE4(sc, CMN_PLL0_DSM_DIAG, 0x20); HWRITE4(sc, CMN_DIAG_PLL0_OVRD, 0); HWRITE4(sc, CMN_DIAG_PLL0_FBH_OVRD, 0); HWRITE4(sc, CMN_DIAG_PLL0_FBL_OVRD, 0); HWRITE4(sc, CMN_DIAG_PLL0_V2I_TUNE, 0x7); HWRITE4(sc, CMN_DIAG_PLL0_CP_TUNE, 0x45); HWRITE4(sc, CMN_DIAG_PLL0_LF_PROG, 0x8); /* Configure the TX and RX line, magic values from rockchip */ HWRITE4(sc, TX_PSC_A0(0), 0x7799); HWRITE4(sc, TX_PSC_A1(0), 0x7798); HWRITE4(sc, TX_PSC_A2(0), 0x5098); HWRITE4(sc, TX_PSC_A3(0), 0x5098); HWRITE4(sc, TX_TXCC_MGNFS_MULT_000(0), 0x0); HWRITE4(sc, XCVR_DIAG_BIDI_CTRL(0), 0xbf); HWRITE4(sc, RX_PSC_A0(1), 0xa6fd); HWRITE4(sc, RX_PSC_A1(1), 0xa6fd); HWRITE4(sc, RX_PSC_A2(1), 0xa410); HWRITE4(sc, RX_PSC_A3(1), 0x2410); HWRITE4(sc, RX_PSC_CAL(1), 0x23ff); HWRITE4(sc, RX_SIGDET_HL_FILT_TMR(1), 0x13); HWRITE4(sc, RX_REE_CTRL_DATA_MASK(1), 0x03e7); HWRITE4(sc, RX_DIAG_SIGDET_TUNE(1), 0x1004); HWRITE4(sc, RX_PSC_RDY(1), 0x2010); HWRITE4(sc, XCVR_DIAG_BIDI_CTRL(1), 0xfb); HWRITE4(sc, PMA_LANE_CFG, PIN_ASSIGN_D_F); HWRITE4(sc, DP_MODE_CTL, DP_MODE_ENTER_A2); reset_deassert(sc->sc_node, "uphy"); for (i = 10000; i > 0; i--) { reg = HREAD4(sc, PMA_CMN_CTRL1); if (reg & PMA_CMN_CTRL1_READY) break; delay(10); } if (i == 0) { printf("%s: timeout waiting for PMA\n", sc->sc_dev.dv_xname); return ENXIO; } reset_deassert(sc->sc_node, "uphy-pipe"); return 0; }