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      1 /*	$NetBSD: zynq7000_usb.c,v 1.3 2022/10/25 22:52:48 jmcneill Exp $	*/
      2 /*-
      3  * Copyright (c) 2015  Genetec Corporation.  All rights reserved.
      4  * Written by Hashimoto Kenichi for Genetec Corporation.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     16  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     17  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     18  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     19  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     20  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     21  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     24  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     25  * POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: zynq7000_usb.c,v 1.3 2022/10/25 22:52:48 jmcneill Exp $");
     30 
     31 #include "opt_soc.h"
     32 
     33 #include <sys/param.h>
     34 #include <sys/bus.h>
     35 #include <sys/conf.h>
     36 #include <sys/device.h>
     37 #include <sys/intr.h>
     38 #include <sys/kernel.h>
     39 #include <sys/systm.h>
     40 
     41 #include <dev/usb/usb.h>
     42 #include <dev/usb/usbdi.h>
     43 #include <dev/usb/usbdivar.h>
     44 #include <dev/usb/usb_mem.h>
     45 
     46 #include <dev/usb/ehcireg.h>
     47 #include <dev/usb/ehcivar.h>
     48 
     49 #include <arm/xilinx/zynq_usbvar.h>
     50 #include <arm/xilinx/zynq_usbreg.h>
     51 
     52 #include <dev/fdt/fdtvar.h>
     53 
     54 static const struct device_compatible_entry compat_data[] = {
     55 	{ .compat = "xlnx,zynq-usb-2.20a" },
     56 	DEVICE_COMPAT_EOL
     57 };
     58 
     59 static int zynqusb_match(device_t, struct cfdata *, void *);
     60 static void zynqusb_attach(device_t, device_t, void *);
     61 
     62 /* attach structures */
     63 CFATTACH_DECL_NEW(zynqusb, sizeof(struct zynqehci_softc),
     64     zynqusb_match, zynqusb_attach, NULL, NULL);
     65 
     66 static int
     67 zynqusb_match(device_t parent, struct cfdata *cf, void *aux)
     68 {
     69 	struct fdt_attach_args * const faa = aux;
     70 
     71 	return of_compatible_match(faa->faa_phandle, compat_data);
     72 }
     73 
     74 static void
     75 zynqusb_attach(device_t parent, device_t self, void *aux)
     76 {
     77 	struct fdt_attach_args * faa = aux;
     78 	char intrstr[128];
     79 	const int phandle = faa->faa_phandle;
     80 	struct zynqehci_softc *sc = device_private(self);
     81 	ehci_softc_t *hsc = &sc->sc_hsc;
     82 	bus_addr_t addr;
     83 	bus_size_t size;
     84 
     85 	if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
     86 		aprint_error(": couldn't get registers\n");
     87 		return;
     88 	}
     89 
     90 	if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) {
     91 		aprint_error(": failed to decode interrupt\n");
     92 		return;
     93 	}
     94 
     95 	if (fdtbus_intr_establish(phandle, 0, IPL_USB, IST_LEVEL, ehci_intr,
     96 				  hsc) == NULL) {
     97 		aprint_error("failed to establish interrupt on %s\n",
     98 		    intrstr);
     99 		return;
    100 	}
    101 
    102 	zynqusb_attach_common(parent, self, faa->faa_bst, faa->faa_dmat,
    103 	    addr, size, 0, ZYNQUSBC_IF_ULPI, ZYNQUSB_HOST);
    104 	aprint_normal_dev(self, "interrupting on %s\n", intrstr);
    105 }
    106