Index: head/sys/arm/nvidia/tegra_ehci.c =================================================================== --- head/sys/arm/nvidia/tegra_ehci.c (revision 297578) +++ head/sys/arm/nvidia/tegra_ehci.c (revision 297579) @@ -1,322 +1,322 @@ /*- * Copyright (c) 2016 Michal Meloun * 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. * * 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. */ #include __FBSDID("$FreeBSD$"); /* * EHCI driver for Tegra SoCs. */ #include "opt_bus.h" #include "opt_platform.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "usbdevs.h" #define TEGRA_EHCI_REG_OFF 0x100 #define TEGRA_EHCI_REG_SIZE 0x100 /* Compatible devices. */ #define TEGRA124_EHCI 1 static struct ofw_compat_data compat_data[] = { {"nvidia,tegra124-ehci", (uintptr_t)TEGRA124_EHCI}, {NULL, 0}, }; struct tegra_ehci_softc { ehci_softc_t ehci_softc; device_t dev; struct resource *ehci_mem_res; /* EHCI core regs. */ struct resource *ehci_irq_res; /* EHCI core IRQ. */ int usb_alloc_called; clk_t clk; phy_t phy; hwreset_t reset; }; static void tegra_ehci_post_reset(struct ehci_softc *ehci_softc) { uint32_t usbmode; /* Force HOST mode. */ usbmode = EOREAD4(ehci_softc, EHCI_USBMODE_LPM); usbmode &= ~EHCI_UM_CM; usbmode |= EHCI_UM_CM_HOST; device_printf(ehci_softc->sc_bus.bdev, "set host controller mode\n"); EOWRITE4(ehci_softc, EHCI_USBMODE_LPM, usbmode); } static int tegra_ehci_probe(device_t dev) { if (!ofw_bus_status_okay(dev)) return (ENXIO); if (ofw_bus_search_compatible(dev, compat_data)->ocd_data != 0) { device_set_desc(dev, "Nvidia Tegra EHCI controller"); return (BUS_PROBE_DEFAULT); } return (ENXIO); } static int tegra_ehci_detach(device_t dev) { struct tegra_ehci_softc *sc; ehci_softc_t *esc; sc = device_get_softc(dev); esc = &sc->ehci_softc; if (sc->clk != NULL) clk_release(sc->clk); if (esc->sc_bus.bdev != NULL) device_delete_child(dev, esc->sc_bus.bdev); if (esc->sc_flags & EHCI_SCFLG_DONEINIT) ehci_detach(esc); if (esc->sc_intr_hdl != NULL) bus_teardown_intr(dev, esc->sc_irq_res, esc->sc_intr_hdl); if (sc->ehci_irq_res != NULL) bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ehci_irq_res); if (sc->ehci_mem_res != NULL) bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->ehci_mem_res); if (sc->usb_alloc_called) usb_bus_mem_free_all(&esc->sc_bus, &ehci_iterate_hw_softc); /* During module unload there are lots of children leftover. */ device_delete_children(dev); return (0); } static int tegra_ehci_attach(device_t dev) { struct tegra_ehci_softc *sc; ehci_softc_t *esc; int rv, rid; uint64_t freq; phandle_t node; sc = device_get_softc(dev); sc->dev = dev; node = ofw_bus_get_node(dev); esc = &sc->ehci_softc; /* Allocate resources. */ rid = 0; sc->ehci_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE | RF_SHAREABLE); if (sc->ehci_mem_res == NULL) { device_printf(dev, "Cannot allocate memory resources\n"); rv = ENXIO; goto out; } rid = 0; sc->ehci_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE); if (sc->ehci_irq_res == NULL) { device_printf(dev, "Cannot allocate IRQ resources\n"); rv = ENXIO; goto out; } rv = hwreset_get_by_ofw_name(dev, "usb", &sc->reset); if (rv != 0) { device_printf(dev, "Cannot get reset\n"); rv = ENXIO; goto out; } rv = phy_get_by_ofw_property(sc->dev, "nvidia,phy", &sc->phy); if (rv != 0) { device_printf(sc->dev, "Cannot get 'nvidia,phy' phy\n"); rv = ENXIO; goto out; } rv = clk_get_by_ofw_index(sc->dev, 0, &sc->clk); if (rv != 0) { device_printf(dev, "Cannot get clock\n"); goto out; } rv = clk_enable(sc->clk); if (rv != 0) { device_printf(dev, "Cannot enable clock\n"); goto out; } freq = 0; rv = clk_get_freq(sc->clk, &freq); if (rv != 0) { device_printf(dev, "Cannot get clock frequency\n"); goto out; } rv = hwreset_deassert(sc->reset); if (rv != 0) { device_printf(dev, "Cannot clear reset: %d\n", rv); rv = ENXIO; goto out; } rv = phy_enable(sc->dev, sc->phy); if (rv != 0) { device_printf(dev, "Cannot enable phy: %d\n", rv); goto out; } /* Fill data for EHCI driver. */ esc->sc_vendor_get_port_speed = ehci_get_port_speed_hostc; esc->sc_vendor_post_reset = tegra_ehci_post_reset; esc->sc_io_tag = rman_get_bustag(sc->ehci_mem_res); esc->sc_bus.parent = dev; esc->sc_bus.devices = esc->sc_devices; esc->sc_bus.devices_max = EHCI_MAX_DEVICES; esc->sc_bus.dma_bits = 32; /* Allocate all DMA memory. */ rv = usb_bus_mem_alloc_all(&esc->sc_bus, USB_GET_DMA_TAG(dev), &ehci_iterate_hw_softc); sc->usb_alloc_called = 1; if (rv != 0) { device_printf(dev, "usb_bus_mem_alloc_all() failed\n"); rv = ENOMEM; goto out; } /* * Set handle to USB related registers subregion used by * generic EHCI driver. */ rv = bus_space_subregion(esc->sc_io_tag, rman_get_bushandle(sc->ehci_mem_res), TEGRA_EHCI_REG_OFF, TEGRA_EHCI_REG_SIZE, &esc->sc_io_hdl); if (rv != 0) { device_printf(dev, "Could not create USB memory subregion\n"); rv = ENXIO; goto out; } /* Setup interrupt handler. */ - rv = bus_setup_intr(dev, sc->ehci_irq_res, INTR_TYPE_BIO, NULL, - (driver_intr_t *)ehci_interrupt, esc, &esc->sc_intr_hdl); + rv = bus_setup_intr(dev, sc->ehci_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, + NULL, (driver_intr_t *)ehci_interrupt, esc, &esc->sc_intr_hdl); if (rv != 0) { device_printf(dev, "Could not setup IRQ\n"); goto out; } /* Add USB bus device. */ esc->sc_bus.bdev = device_add_child(dev, "usbus", -1); if (esc->sc_bus.bdev == NULL) { device_printf(dev, "Could not add USB device\n"); goto out; } device_set_ivars(esc->sc_bus.bdev, &esc->sc_bus); esc->sc_id_vendor = USB_VENDOR_FREESCALE; strlcpy(esc->sc_vendor, "Nvidia", sizeof(esc->sc_vendor)); /* Set flags that affect ehci_init() behavior. */ esc->sc_flags |= EHCI_SCFLG_TT; esc->sc_flags |= EHCI_SCFLG_NORESTERM; rv = ehci_init(esc); if (rv != 0) { device_printf(dev, "USB init failed: %d\n", rv); goto out; } esc->sc_flags |= EHCI_SCFLG_DONEINIT; /* Probe the bus. */ rv = device_probe_and_attach(esc->sc_bus.bdev); if (rv != 0) { device_printf(dev, "device_probe_and_attach() failed\n"); goto out; } return (0); out: tegra_ehci_detach(dev); return (rv); } static device_method_t ehci_methods[] = { /* Device interface */ DEVMETHOD(device_probe, tegra_ehci_probe), DEVMETHOD(device_attach, tegra_ehci_attach), DEVMETHOD(device_detach, tegra_ehci_detach), DEVMETHOD(device_suspend, bus_generic_suspend), DEVMETHOD(device_resume, bus_generic_resume), DEVMETHOD(device_shutdown, bus_generic_shutdown), /* Bus interface */ DEVMETHOD(bus_print_child, bus_generic_print_child), DEVMETHOD_END }; static driver_t ehci_driver = { "ehci", ehci_methods, sizeof(struct tegra_ehci_softc) }; static devclass_t ehci_devclass; DRIVER_MODULE(ehci, simplebus, ehci_driver, ehci_devclass, 0, 0); MODULE_DEPEND(ehci, usb, 1, 1, 1); \ No newline at end of file Index: head/sys/dev/usb/controller/ehci_fsl.c =================================================================== --- head/sys/dev/usb/controller/ehci_fsl.c (revision 297578) +++ head/sys/dev/usb/controller/ehci_fsl.c (revision 297579) @@ -1,427 +1,427 @@ /*- * Copyright (c) 2010-2012 Semihalf * 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. * * 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. */ #include __FBSDID("$FreeBSD$"); #include "opt_bus.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "opt_platform.h" /* * Register the driver */ /* Forward declarations */ static int fsl_ehci_attach(device_t self); static int fsl_ehci_detach(device_t self); static int fsl_ehci_probe(device_t self); static device_method_t ehci_methods[] = { /* Device interface */ DEVMETHOD(device_probe, fsl_ehci_probe), DEVMETHOD(device_attach, fsl_ehci_attach), DEVMETHOD(device_detach, fsl_ehci_detach), DEVMETHOD(device_suspend, bus_generic_suspend), DEVMETHOD(device_resume, bus_generic_resume), DEVMETHOD(device_shutdown, bus_generic_shutdown), /* Bus interface */ DEVMETHOD(bus_print_child, bus_generic_print_child), { 0, 0 } }; /* kobj_class definition */ static driver_t ehci_driver = { "ehci", ehci_methods, sizeof(struct ehci_softc) }; static devclass_t ehci_devclass; DRIVER_MODULE(ehci, simplebus, ehci_driver, ehci_devclass, 0, 0); MODULE_DEPEND(ehci, usb, 1, 1, 1); /* * Private defines */ #define FSL_EHCI_REG_OFF 0x100 #define FSL_EHCI_REG_SIZE 0x300 /* * Internal interface registers' offsets. * Offsets from 0x000 ehci dev space, big-endian access. */ enum internal_reg { SNOOP1 = 0x400, SNOOP2 = 0x404, AGE_CNT_THRESH = 0x408, SI_CTRL = 0x410, CONTROL = 0x500 }; /* CONTROL register bit flags */ enum control_flags { USB_EN = 0x00000004, UTMI_PHY_EN = 0x00000200, ULPI_INT_EN = 0x00000001 }; /* SI_CTRL register bit flags */ enum si_ctrl_flags { FETCH_32 = 1, FETCH_64 = 0 }; #define SNOOP_RANGE_2GB 0x1E /* * Operational registers' offsets. * Offsets from USBCMD register, little-endian access. */ enum special_op_reg { USBMODE = 0x0A8, PORTSC = 0x084, ULPI_VIEWPORT = 0x70 }; /* USBMODE register bit flags */ enum usbmode_flags { HOST_MODE = 0x3, DEVICE_MODE = 0x2 }; #define PORT_POWER_MASK 0x00001000 /* * Private methods */ static void set_to_host_mode(ehci_softc_t *sc) { int tmp; tmp = bus_space_read_4(sc->sc_io_tag, sc->sc_io_hdl, USBMODE); bus_space_write_4(sc->sc_io_tag, sc->sc_io_hdl, USBMODE, tmp | HOST_MODE); } static void enable_usb(device_t dev, bus_space_tag_t iot, bus_space_handle_t ioh) { int tmp; phandle_t node; char *phy_type; phy_type = NULL; tmp = bus_space_read_4(iot, ioh, CONTROL) | USB_EN; node = ofw_bus_get_node(dev); if ((node != 0) && (OF_getprop_alloc(node, "phy_type", 1, (void **)&phy_type) > 0)) { if (strncasecmp(phy_type, "utmi", strlen("utmi")) == 0) tmp |= UTMI_PHY_EN; free(phy_type, M_OFWPROP); } bus_space_write_4(iot, ioh, CONTROL, tmp); } static void set_32b_prefetch(bus_space_tag_t iot, bus_space_handle_t ioh) { bus_space_write_4(iot, ioh, SI_CTRL, FETCH_32); } static void set_snooping(bus_space_tag_t iot, bus_space_handle_t ioh) { bus_space_write_4(iot, ioh, SNOOP1, SNOOP_RANGE_2GB); bus_space_write_4(iot, ioh, SNOOP2, 0x80000000 | SNOOP_RANGE_2GB); } static void clear_port_power(ehci_softc_t *sc) { int tmp; tmp = bus_space_read_4(sc->sc_io_tag, sc->sc_io_hdl, PORTSC); bus_space_write_4(sc->sc_io_tag, sc->sc_io_hdl, PORTSC, tmp & ~PORT_POWER_MASK); } /* * Public methods */ static int fsl_ehci_probe(device_t dev) { if (!ofw_bus_status_okay(dev)) return (ENXIO); if (((ofw_bus_is_compatible(dev, "fsl-usb2-dr")) == 0) && ((ofw_bus_is_compatible(dev, "fsl-usb2-mph")) == 0)) return (ENXIO); device_set_desc(dev, "Freescale integrated EHCI controller"); return (BUS_PROBE_DEFAULT); } static int fsl_ehci_attach(device_t self) { ehci_softc_t *sc; int rid; int err; bus_space_handle_t ioh; bus_space_tag_t iot; sc = device_get_softc(self); rid = 0; sc->sc_bus.parent = self; sc->sc_bus.devices = sc->sc_devices; sc->sc_bus.devices_max = EHCI_MAX_DEVICES; sc->sc_bus.dma_bits = 32; if (usb_bus_mem_alloc_all(&sc->sc_bus, USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) return (ENOMEM); /* Allocate io resource for EHCI */ sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, RF_ACTIVE); if (sc->sc_io_res == NULL) { err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (ENXIO); } iot = rman_get_bustag(sc->sc_io_res); /* * Set handle to USB related registers subregion used by generic * EHCI driver */ ioh = rman_get_bushandle(sc->sc_io_res); err = bus_space_subregion(iot, ioh, FSL_EHCI_REG_OFF, FSL_EHCI_REG_SIZE, &sc->sc_io_hdl); if (err != 0) { err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (ENXIO); } /* Set little-endian tag for use by the generic EHCI driver */ sc->sc_io_tag = &bs_le_tag; /* Allocate irq */ sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, RF_ACTIVE); if (sc->sc_irq_res == NULL) { err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (ENXIO); } /* Setup interrupt handler */ - err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO, + err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); if (err) { device_printf(self, "Could not setup irq, %d\n", err); sc->sc_intr_hdl = NULL; err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (ENXIO); } /* Add USB device */ sc->sc_bus.bdev = device_add_child(self, "usbus", -1); if (!sc->sc_bus.bdev) { device_printf(self, "Could not add USB device\n"); err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (ENOMEM); } device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); sc->sc_id_vendor = 0x1234; strlcpy(sc->sc_vendor, "Freescale", sizeof(sc->sc_vendor)); /* Enable USB */ err = ehci_reset(sc); if (err) { device_printf(self, "Could not reset the controller\n"); err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (ENXIO); } enable_usb(self, iot, ioh); set_snooping(iot, ioh); set_to_host_mode(sc); set_32b_prefetch(iot, ioh); /* * If usb subsystem is enabled in U-Boot, port power has to be turned * off to allow proper discovery of devices during boot up. */ clear_port_power(sc); /* Set flags */ sc->sc_flags |= EHCI_SCFLG_DONTRESET | EHCI_SCFLG_NORESTERM; err = ehci_init(sc); if (!err) { sc->sc_flags |= EHCI_SCFLG_DONEINIT; err = device_probe_and_attach(sc->sc_bus.bdev); } if (err) { device_printf(self, "USB init failed err=%d\n", err); err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (EIO); } return (0); } static int fsl_ehci_detach(device_t self) { int err; ehci_softc_t *sc; sc = device_get_softc(self); /* * only call ehci_detach() after ehci_init() */ if (sc->sc_flags & EHCI_SCFLG_DONEINIT) { ehci_detach(sc); sc->sc_flags &= ~EHCI_SCFLG_DONEINIT; } /* Disable interrupts that might have been switched on in ehci_init */ if (sc->sc_io_tag && sc->sc_io_hdl) bus_space_write_4(sc->sc_io_tag, sc->sc_io_hdl, EHCI_USBINTR, 0); if (sc->sc_irq_res && sc->sc_intr_hdl) { err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); if (err) { device_printf(self, "Could not tear down irq, %d\n", err); return (err); } sc->sc_intr_hdl = NULL; } if (sc->sc_bus.bdev) { device_delete_child(self, sc->sc_bus.bdev); sc->sc_bus.bdev = NULL; } /* During module unload there are lots of children leftover */ device_delete_children(self); if (sc->sc_irq_res) { bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); sc->sc_irq_res = NULL; } if (sc->sc_io_res) { bus_release_resource(self, SYS_RES_MEMORY, 0, sc->sc_io_res); sc->sc_io_res = NULL; sc->sc_io_tag = 0; sc->sc_io_hdl = 0; } return (0); } Index: head/sys/dev/usb/controller/ehci_imx.c =================================================================== --- head/sys/dev/usb/controller/ehci_imx.c (revision 297578) +++ head/sys/dev/usb/controller/ehci_imx.c (revision 297579) @@ -1,337 +1,337 @@ /*- * Copyright (c) 2010-2012 Semihalf * Copyright (c) 2012 The FreeBSD Foundation * Copyright (c) 2013 Ian Lepore * All rights reserved. * * Portions of this software were developed by Oleksandr Rybalko * under sponsorship from the FreeBSD Foundation. * * 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. */ #include __FBSDID("$FreeBSD$"); /* * EHCI driver for Freescale i.MX SoCs which incorporate the USBOH3 controller. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "usbdevs.h" #include #include #include #include "opt_platform.h" /* * Notes on the hardware and related FDT data seen in the wild. * * There are two sets of registers in the USBOH3 implementation; documentation * refers to them as "core" and "non-core" registers. A set of core register * exists for each OTG or EHCI device. There is a single set of non-core * registers per USBOH3, and they control aspects of operation not directly * related to the USB specs, such as whether interrupts from each of the core * devices are able to generate a SoC wakeup event. * * In the FreeBSD universe we might be inclined to describe the core and * non-core registers by using a pair of resource address/size values (two * entries in the reg property for each core). However, we have to work with * existing FDT data (which mostly comes from the linux universe), and the way * they've chosen to represent this is with an entry for a "usbmisc" device * whose reg property describes the non-core registers. The way we handle FDT * data, this means that the resources (memory-mapped register range) for the * non-core registers belongs to a device other than the echi devices. * * At the moment we have no need to access the non-core registers, so all of * this amounts to documenting what's known. The following compat strings have * been seen in existing FDT data: * - "fsl,imx25-usbmisc" * - "fsl,imx51-usbmisc"; * - "fsl,imx6q-usbmisc"; * * In addition to the single usbmisc device, the existing FDT data defines a * separate device for each of the OTG or EHCI cores within the USBOH3. Each of * those devices has a set of core registers described by the reg property. * * The core registers for each of the four cores in the USBOH3 are divided into * two parts: a set of imx-specific registers at an offset of 0 from the * beginning of the register range, and the standard USB (EHCI or OTG) registers * at an offset of 0x100 from the beginning of the register range. The FreeBSD * way of dealing with this might be to map out two ranges in the reg property, * but that's not what the alternate universe has done. To work with existing * FDT data, we acquire the resource that maps all the core registers, then use * bus_space_subregion() to create another resource that maps just the standard * USB registers, which we provide to the standard USB code in the ehci_softc. * * The following compat strings have been seen for the OTG and EHCI cores. The * FDT compat table in this driver contains all these strings, but as of this * writing, not all of these SoCs have been tested with the driver. The fact * that imx27 is common to all of them gives some hope that the driver will work * on all these SoCs. * - "fsl,imx23-usb", "fsl,imx27-usb"; * - "fsl,imx25-usb", "fsl,imx27-usb"; * - "fsl,imx28-usb", "fsl,imx27-usb"; * - "fsl,imx51-usb", "fsl,imx27-usb"; * - "fsl,imx53-usb", "fsl,imx27-usb"; * - "fsl,imx6q-usb", "fsl,imx27-usb"; * * The FDT data for some SoCs contains the following properties, which we don't * currently do anything with: * - fsl,usbmisc = <&usbmisc 0>; * - fsl,usbphy = <&usbphy0>; * * Some imx SoCs have FDT data related to USB PHY, some don't. We have separate * usbphy drivers where needed; this data is mentioned here just to keep all the * imx-FDT-usb-related info in one place. Here are the usbphy compat strings * known to exist: * - "nop-usbphy" * - "usb-nop-xceiv"; * - "fsl,imx23-usbphy" * - "fsl,imx28-usbphy", "fsl,imx23-usbphy"; * - "fsl,imx6q-usbphy", "fsl,imx23-usbphy"; * */ static struct ofw_compat_data compat_data[] = { {"fsl,imx6q-usb", 1}, {"fsl,imx53-usb", 1}, {"fsl,imx51-usb", 1}, {"fsl,imx28-usb", 1}, {"fsl,imx27-usb", 1}, {"fsl,imx25-usb", 1}, {"fsl,imx23-usb", 1}, {NULL, 0}, }; /* * Each EHCI device in the SoC has some SoC-specific per-device registers at an * offset of 0, then the standard EHCI registers begin at an offset of 0x100. */ #define IMX_EHCI_REG_OFF 0x100 #define IMX_EHCI_REG_SIZE 0x100 struct imx_ehci_softc { ehci_softc_t ehci_softc; struct resource *ehci_mem_res; /* EHCI core regs. */ struct resource *ehci_irq_res; /* EHCI core IRQ. */ }; static int imx_ehci_probe(device_t dev) { if (!ofw_bus_status_okay(dev)) return (ENXIO); if (ofw_bus_search_compatible(dev, compat_data)->ocd_data != 0) { device_set_desc(dev, "Freescale i.MX integrated USB controller"); return (BUS_PROBE_DEFAULT); } return (ENXIO); } static int imx_ehci_detach(device_t dev) { struct imx_ehci_softc *sc; ehci_softc_t *esc; sc = device_get_softc(dev); esc = &sc->ehci_softc; if (esc->sc_bus.bdev != NULL) device_delete_child(dev, esc->sc_bus.bdev); if (esc->sc_flags & EHCI_SCFLG_DONEINIT) ehci_detach(esc); if (esc->sc_intr_hdl != NULL) bus_teardown_intr(dev, esc->sc_irq_res, esc->sc_intr_hdl); if (sc->ehci_irq_res != NULL) bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ehci_irq_res); if (sc->ehci_mem_res != NULL) bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->ehci_mem_res); usb_bus_mem_free_all(&esc->sc_bus, &ehci_iterate_hw_softc); /* During module unload there are lots of children leftover */ device_delete_children(dev); return (0); } static int imx_ehci_attach(device_t dev) { struct imx_ehci_softc *sc; ehci_softc_t *esc; int err, rid; sc = device_get_softc(dev); esc = &sc->ehci_softc; err = 0; /* Allocate bus_space resources. */ rid = 0; sc->ehci_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE); if (sc->ehci_mem_res == NULL) { device_printf(dev, "Cannot allocate memory resources\n"); err = ENXIO; goto out; } rid = 0; sc->ehci_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE); if (sc->ehci_irq_res == NULL) { device_printf(dev, "Cannot allocate IRQ resources\n"); err = ENXIO; goto out; } esc->sc_io_tag = rman_get_bustag(sc->ehci_mem_res); esc->sc_bus.parent = dev; esc->sc_bus.devices = esc->sc_devices; esc->sc_bus.devices_max = EHCI_MAX_DEVICES; esc->sc_bus.dma_bits = 32; /* allocate all DMA memory */ if (usb_bus_mem_alloc_all(&esc->sc_bus, USB_GET_DMA_TAG(dev), &ehci_iterate_hw_softc) != 0) { device_printf(dev, "usb_bus_mem_alloc_all() failed\n"); err = ENOMEM; goto out; } /* * Set handle to USB related registers subregion used by * generic EHCI driver. */ err = bus_space_subregion(esc->sc_io_tag, rman_get_bushandle(sc->ehci_mem_res), IMX_EHCI_REG_OFF, IMX_EHCI_REG_SIZE, &esc->sc_io_hdl); if (err != 0) { device_printf(dev, "bus_space_subregion() failed\n"); err = ENXIO; goto out; } /* Setup interrupt handler. */ - err = bus_setup_intr(dev, sc->ehci_irq_res, INTR_TYPE_BIO, NULL, - (driver_intr_t *)ehci_interrupt, esc, &esc->sc_intr_hdl); + err = bus_setup_intr(dev, sc->ehci_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, + NULL, (driver_intr_t *)ehci_interrupt, esc, &esc->sc_intr_hdl); if (err != 0) { device_printf(dev, "Could not setup IRQ\n"); goto out; } /* Turn on clocks. */ imx_ccm_usb_enable(dev); /* Add USB bus device. */ esc->sc_bus.bdev = device_add_child(dev, "usbus", -1); if (esc->sc_bus.bdev == NULL) { device_printf(dev, "Could not add USB device\n"); goto out; } device_set_ivars(esc->sc_bus.bdev, &esc->sc_bus); esc->sc_id_vendor = USB_VENDOR_FREESCALE; strlcpy(esc->sc_vendor, "Freescale", sizeof(esc->sc_vendor)); /* Set flags that affect ehci_init() behavior. */ esc->sc_flags |= EHCI_SCFLG_DONTRESET | EHCI_SCFLG_NORESTERM; err = ehci_init(esc); if (err != 0) { device_printf(dev, "USB init failed, usb_err_t=%d\n", err); goto out; } esc->sc_flags |= EHCI_SCFLG_DONEINIT; /* Probe the bus. */ err = device_probe_and_attach(esc->sc_bus.bdev); if (err != 0) { device_printf(dev, "device_probe_and_attach() failed\n"); goto out; } err = 0; out: if (err != 0) imx_ehci_detach(dev); return (err); } static device_method_t ehci_methods[] = { /* Device interface */ DEVMETHOD(device_probe, imx_ehci_probe), DEVMETHOD(device_attach, imx_ehci_attach), DEVMETHOD(device_detach, imx_ehci_detach), DEVMETHOD(device_suspend, bus_generic_suspend), DEVMETHOD(device_resume, bus_generic_resume), DEVMETHOD(device_shutdown, bus_generic_shutdown), /* Bus interface */ DEVMETHOD(bus_print_child, bus_generic_print_child), DEVMETHOD_END }; static driver_t ehci_driver = { "ehci", ehci_methods, sizeof(struct imx_ehci_softc) }; static devclass_t ehci_devclass; DRIVER_MODULE(ehci, simplebus, ehci_driver, ehci_devclass, 0, 0); MODULE_DEPEND(ehci, usb, 1, 1, 1);