diff options
| -rw-r--r-- | sys/dev/fdt/files.fdt | 6 | ||||
| -rw-r--r-- | sys/dev/fdt/rkusbphy.c | 241 |
2 files changed, 246 insertions, 1 deletions
diff --git a/sys/dev/fdt/files.fdt b/sys/dev/fdt/files.fdt index 9d795822199..e653fbc8aff 100644 --- a/sys/dev/fdt/files.fdt +++ b/sys/dev/fdt/files.fdt @@ -1,4 +1,4 @@ -# $OpenBSD: files.fdt,v 1.183 2023/04/01 08:39:05 kettenis Exp $ +# $OpenBSD: files.fdt,v 1.184 2023/04/02 01:21:39 dlg Exp $ # # Config file and device description for machine-independent FDT code. # Included by ports that need it. @@ -345,6 +345,10 @@ device rkcomphy attach rkcomphy at fdt file dev/fdt/rkcomphy.c rkcomphy +device rkusbphy +attach rkusbphy at fdt +file dev/fdt/rkusbphy.c rkusbphy + device rkdrm: drmbase, wsemuldisplaydev, rasops15, rasops16, rasops24, rasops32 attach rkdrm at fdt file dev/fdt/rkdrm.c rkdrm diff --git a/sys/dev/fdt/rkusbphy.c b/sys/dev/fdt/rkusbphy.c new file mode 100644 index 00000000000..f3c63fb311b --- /dev/null +++ b/sys/dev/fdt/rkusbphy.c @@ -0,0 +1,241 @@ +/* $OpenBSD: rkusbphy.c,v 1.1 2023/04/02 01:21:39 dlg Exp $ */ + +/* + * Copyright (c) 2023 David Gwynne <dlg@openbsd.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * Rockchip USB2PHY with Innosilicon IP + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/device.h> + +#include <machine/intr.h> +#include <machine/bus.h> +#include <machine/fdt.h> + +#include <dev/ofw/openfirm.h> +#include <dev/ofw/ofw_clock.h> +#include <dev/ofw/ofw_regulator.h> +#include <dev/ofw/ofw_misc.h> +#include <dev/ofw/fdt.h> + +/* + * chip stuff + */ + +struct rkusbphy_reg { + bus_size_t r_offs; +}; + +struct rkusbphy_port_regs { + struct rkusbphy_reg pr_phy_sus; + struct rkusbphy_reg pr_bvalid_det_en; +}; + +struct rkusbphy_chip { + bus_addr_t c_base_addr; + struct rkusbphy_port_regs c_regs; +}; + +static const struct rkusbphy_chip rkusbphy_rk3568[] = { + { + .c_base_addr = 0xfe8a0000, + }, + { + .c_base_addr = 0xfe8b0000, + }, +}; + +/* + * driver stuff + */ + +struct rkusbphy_softc { + struct device sc_dev; + const struct rkusbphy_chip *sc_chip; + struct regmap *sc_grf; + int sc_node; + + struct phy_device sc_otg_phy; + struct phy_device sc_host_phy; +}; +#define DEVNAME(_sc) ((_sc)->sc_dev.dv_xname) + +static int rkusbphy_match(struct device *, void *, void *); +static void rkusbphy_attach(struct device *, struct device *, void *); + +static int rkusbphy_otg_phy_enable(void *, uint32_t *); +static int rkusbphy_host_phy_enable(void *, uint32_t *); + +struct rkusbphy_port_config { + const char *pc_name; + int (*pc_enable)(void *, uint32_t *); +}; + +static void rkusbphy_register(struct rkusbphy_softc *, + struct phy_device *, const struct rkusbphy_port_config *); + +static const struct rkusbphy_port_config rkusbphy_otg_config = { + .pc_name = "otg-port", + .pc_enable = rkusbphy_otg_phy_enable, +}; + +static const struct rkusbphy_port_config rkusbphy_host_config = { + .pc_name = "host-port", + .pc_enable = rkusbphy_host_phy_enable, +}; + +const struct cfattach rkusbphy_ca = { + sizeof (struct rkusbphy_softc), rkusbphy_match, rkusbphy_attach +}; + +struct cfdriver rkusbphy_cd = { + NULL, "rkusbphy", DV_DULL +}; + +struct rkusbphy_id { + const char *id_name; + const struct rkusbphy_chip *id_chips; + size_t id_nchips; +}; + +#define RKUSBPHY_ID(_n, _c) { _n, _c, nitems(_c) } + +static const struct rkusbphy_id rkusbphy_ids[] = { + RKUSBPHY_ID("rockchip,rk3568-usb2phy", rkusbphy_rk3568), +}; + +static const struct rkusbphy_id * +rkusbphy_lookup(struct fdt_attach_args *faa) +{ + size_t i; + + for (i = 0; i < nitems(rkusbphy_ids); i++) { + const struct rkusbphy_id *id = &rkusbphy_ids[i]; + if (OF_is_compatible(faa->fa_node, id->id_name)) + return (id); + } + + return (NULL); +} + +static int +rkusbphy_match(struct device *parent, void *match, void *aux) +{ + struct fdt_attach_args *faa = aux; + + return (rkusbphy_lookup(faa) != NULL ? 1 : 0); +} + +static void +rkusbphy_attach(struct device *parent, struct device *self, void *aux) +{ + struct rkusbphy_softc *sc = (struct rkusbphy_softc *)self; + struct fdt_attach_args *faa = aux; + const struct rkusbphy_id *id = rkusbphy_lookup(faa); + size_t i; + uint32_t grfph; + + if (faa->fa_nreg < 1) { + printf(": no registers\n"); + return; + } + + for (i = 0; i < id->id_nchips; i++) { + const struct rkusbphy_chip *c = &id->id_chips[i]; + if (faa->fa_reg[0].addr == c->c_base_addr) { + printf(": phy %zu\n", i); + sc->sc_chip = c; + break; + } + } + if (sc->sc_chip == NULL) { + printf(": unknown base address 0x%llu\n", faa->fa_reg[0].addr); + return; + } + + sc->sc_node = faa->fa_node; + + grfph = OF_getpropint(sc->sc_node, "rockchip,usbgrf", 0); + sc->sc_grf = regmap_byphandle(grfph); + if (sc->sc_grf == NULL) { + printf("%s: rockchip,usbgrf 0x%x not found\n", DEVNAME(sc), + grfph); + return; + } + + reset_assert_all(sc->sc_node); + + rkusbphy_register(sc, &sc->sc_otg_phy, &rkusbphy_otg_config); + rkusbphy_register(sc, &sc->sc_host_phy, &rkusbphy_host_config); +} + +static void +rkusbphy_register(struct rkusbphy_softc *sc, struct phy_device *pd, + const struct rkusbphy_port_config *pc) +{ + char status[32]; + int node; + + node = OF_getnodebyname(sc->sc_node, pc->pc_name); + if (node == 0) { + printf("%s: cannot find %s\n", DEVNAME(sc), pc->pc_name); + return; + } + + if (OF_getprop(node, "status", status, sizeof(status)) > 0 && + strcmp(status, "disabled") == 0) + return; + + pd->pd_node = node; + pd->pd_cookie = sc; + pd->pd_enable = pc->pc_enable; + phy_register(pd); +} + +static void +rkusbphy_phy_supply(struct rkusbphy_softc *sc, int node) +{ + int phandle; + + phandle = OF_getpropint(node, "phy-supply", 0); + if (phandle == 0) + return; + + regulator_enable(phandle); +} + +static int +rkusbphy_otg_phy_enable(void *cookie, uint32_t *cells) +{ + struct rkusbphy_softc *sc = cookie; + + rkusbphy_phy_supply(sc, sc->sc_otg_phy.pd_node); + + return (EINVAL); +} + +static int +rkusbphy_host_phy_enable(void *cookie, uint32_t *cells) +{ + struct rkusbphy_softc *sc = cookie; + + rkusbphy_phy_supply(sc, sc->sc_host_phy.pd_node); + + return (EINVAL); +} |