190 lines
5.7 KiB
C
190 lines
5.7 KiB
C
/* $NetBSD: kobo_usb.c,v 1.1 2014/07/25 11:22:50 hkenken Exp $ */
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/*
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* Copyright (c) 2012 Genetec Corporation. All rights reserved.
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* Written by Hiroyuki Bessho for Genetec Corporation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORPORATION
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: kobo_usb.c,v 1.1 2014/07/25 11:22:50 hkenken Exp $");
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#include "opt_imx.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/kthread.h>
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#include <sys/device.h>
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#include <sys/intr.h>
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#include <sys/bus.h>
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#include <sys/gpio.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdivar.h>
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#include <dev/usb/usb_mem.h>
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#include <dev/usb/ehcireg.h>
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#include <dev/usb/ehcivar.h>
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#include <arm/imx/imx51reg.h>
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#include <arm/imx/imx51var.h>
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#include <arm/imx/imxusbreg.h>
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#include <arm/imx/imxusbvar.h>
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#include <arm/imx/imx50_iomuxreg.h>
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#include <arm/imx/imxgpiovar.h>
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#include <arm/imx/imx51_ccmreg.h>
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#include <arm/imx/imx51_ccmvar.h>
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#include "locators.h"
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struct kobo_usbc_softc {
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struct imxusbc_softc sc_imxusbc;
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};
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static int imxusbc_match(device_t, cfdata_t, void *);
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static void imxusbc_attach(device_t, device_t, void *);
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static void kobo_usb_init(struct imxehci_softc *);
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static void init_otg(struct imxehci_softc *);
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static void init_h1(struct imxehci_softc *);
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extern const struct iomux_conf iomux_usb1_config[];
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/* attach structures */
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CFATTACH_DECL_NEW(imxusbc_axi, sizeof(struct kobo_usbc_softc),
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imxusbc_match, imxusbc_attach, NULL, NULL);
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static int
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imxusbc_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct axi_attach_args *aa = aux;
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if (aa->aa_addr == USBOH3_BASE)
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return 1;
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return 0;
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}
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static void
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imxusbc_attach(device_t parent, device_t self, void *aux)
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{
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struct axi_attach_args *aa = aux;
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struct kobo_usbc_softc *sc = device_private(self);
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aprint_normal("\n");
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aprint_naive("\n");
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sc->sc_imxusbc.sc_init_md_hook = kobo_usb_init;
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sc->sc_imxusbc.sc_setup_md_hook = NULL;
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imxusbc_attach_common(parent, self, aa->aa_iot);
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}
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static void
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kobo_usb_init(struct imxehci_softc *sc)
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{
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switch (sc->sc_unit) {
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case 0: /* OTG controller */
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init_otg(sc);
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break;
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case 1: /* EHCI Host 1 */
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init_h1(sc);
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break;
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default:
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aprint_error_dev(sc->sc_hsc.sc_dev, "unit %d not supprted\n",
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sc->sc_unit);
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}
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}
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static void
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init_otg(struct imxehci_softc *sc)
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{
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struct imxusbc_softc *usbc = sc->sc_usbc;
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uint32_t reg;
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reg = bus_space_read_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_USB_CLKONOFF_CTRL);
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reg &= ~USB_CLKONOFF_CTRL_OTG_AHBCLK_OFF;
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bus_space_write_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_USB_CLKONOFF_CTRL, reg);
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sc->sc_iftype = IMXUSBC_IF_UTMI_WIDE;
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imxehci_reset(sc);
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reg = bus_space_read_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_PHYCTRL0);
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reg |= PHYCTRL0_OTG_OVER_CUR_DIS | PHYCTRL0_SUSPENDM;
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bus_space_write_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_PHYCTRL0, reg);
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reg = bus_space_read_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_USBCTRL);
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reg &= ~USBCTRL_OWIR;
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bus_space_write_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_USBCTRL, reg);
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reg = bus_space_read_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_PHYCTRL1);
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reg = (reg & ~PHYCTRL1_PLLDIVVALUE_MASK) | PHYCTRL1_PLLDIVVALUE_24MHZ;
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bus_space_write_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_PHYCTRL1, reg);
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}
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static void
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init_h1(struct imxehci_softc *sc)
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{
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struct imxusbc_softc *usbc = sc->sc_usbc;
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uint32_t reg;
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reg = bus_space_read_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_USB_CLKONOFF_CTRL);
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reg &= ~USB_CLKONOFF_CTRL_H1_AHBCLK_OFF;
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bus_space_write_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_USB_CLKONOFF_CTRL, reg);
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imxehci_reset(sc);
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/* select INTERNAL PHY interface for Host 1 */
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sc->sc_iftype = IMXUSBC_IF_UTMI;
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reg = bus_space_read_4(usbc->sc_iot, usbc->sc_ioh,
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USBOH3_USBCTRL);
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reg |= USBCTRL_H1PM;
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reg &= ~(USBCTRL_H1WIE);
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reg &= ~(USBCTRL_H1UIE);
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bus_space_write_4(usbc->sc_iot, usbc->sc_ioh,
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USBOH3_USBCTRL, reg);
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reg = bus_space_read_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_PHYCTRL0);
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reg &= ~PHYCTRL0_H1_OVER_CUR_DIS;
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reg |= PHYCTRL0_H1_OVER_CUR_POL;
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bus_space_write_4(usbc->sc_iot, usbc->sc_ioh,USBOH3_PHYCTRL0 , reg);
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delay(1000);
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reg = bus_space_read_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_UH1_PHY_CTRL_1);
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reg &= ~PHYCTRL1_PLLDIVVALUE_MASK;
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reg |= PHYCTRL1_PLLDIVVALUE_24MHZ;
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bus_space_write_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_UH1_PHY_CTRL_1, reg);
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reg = bus_space_read_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_UH1_PHY_CTRL_0);
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reg &= ~PHYCTRL0_CHGRDETON;
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reg &= ~PHYCTRL0_CHGRDETEN;
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bus_space_write_4(usbc->sc_iot, usbc->sc_ioh, USBOH3_UH1_PHY_CTRL_0, reg);
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}
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