[src/trunk]: src/sys/arch/arm/broadcom RPI DWC2 glue.

[skrll <skrll%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/8e3683e6fe17
branches:  trunk
changeset: 789737:8e3683e6fe17
user:      skrll <skrll%NetBSD.org@localhost>
date:      Thu Sep 05 20:49:25 2013 +0000

description:
RPI DWC2 glue.

diffstat:

 sys/arch/arm/broadcom/bcm2835_dwctwo.c |  167 +++++++++++++++++++++++++++++++++
 1 files changed, 167 insertions(+), 0 deletions(-)

diffs (171 lines):

diff -r a560d4edb0c3 -r 8e3683e6fe17 sys/arch/arm/broadcom/bcm2835_dwctwo.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/arm/broadcom/bcm2835_dwctwo.c    Thu Sep 05 20:49:25 2013 +0000
@@ -0,0 +1,167 @@
+/*     $NetBSD: bcm2835_dwctwo.c,v 1.1 2013/09/05 20:49:25 skrll Exp $ */
+
+/*-
+ * Copyright (c) 2013 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Nick Hudson
+ *
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: bcm2835_dwctwo.c,v 1.1 2013/09/05 20:49:25 skrll Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/mutex.h>
+#include <sys/bus.h>
+#include <sys/workqueue.h>
+
+#include <arm/broadcom/bcm2835reg.h>
+#include <arm/broadcom/bcm_amba.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdivar.h>
+#include <dev/usb/usb_mem.h>
+
+#include <dwc2/dwc2var.h>
+
+#include <dwc2/dwc2.h>
+#include "dwc2_core.h"
+
+struct bcmdwc2_softc {
+       struct dwc2_softc       sc_dwc2;
+
+       void                    *sc_ih;
+};
+
+static struct dwc2_core_params bcmdwc2_params = {
+       .otg_cap                        = 0,    /* HNP/SRP capable */
+       .otg_ver                        = 0,    /* 1.3 */
+       .dma_enable                     = 1,
+       .dma_desc_enable                = 0,
+       .speed                          = 0,    /* High Speed */
+       .enable_dynamic_fifo            = 1,
+       .en_multiple_tx_fifo            = 1,
+       .host_rx_fifo_size              = 774,  /* 774 DWORDs */
+       .host_nperio_tx_fifo_size       = 256,  /* 256 DWORDs */
+       .host_perio_tx_fifo_size        = 512,  /* 512 DWORDs */
+       .max_transfer_size              = 65535,
+       .max_packet_count               = 511,
+       .host_channels                  = 8,
+       .phy_type                       = 1,    /* UTMI */
+       .phy_utmi_width                 = 8,    /* 8 bits */
+       .phy_ulpi_ddr                   = 0,    /* Single */
+       .phy_ulpi_ext_vbus              = 0,
+       .i2c_enable                     = 0,
+       .ulpi_fs_ls                     = 0,
+       .host_support_fs_ls_low_power   = 0,
+       .host_ls_low_power_phy_clk      = 0,    /* 48 MHz */
+       .ts_dline                       = 0,
+       .reload_ctl                     = 0,
+       .ahbcfg                         = 0x10,
+       .uframe_sched                   = 1,
+};
+
+static int bcmdwc2_match(device_t, struct cfdata *, void *);
+static void bcmdwc2_attach(device_t, device_t, void *);
+static void bcmdwc2_deferred(device_t);
+
+CFATTACH_DECL_NEW(bcmdwctwo, sizeof(struct bcmdwc2_softc),
+    bcmdwc2_match, bcmdwc2_attach, NULL, NULL);
+
+/* ARGSUSED */
+static int
+bcmdwc2_match(device_t parent, struct cfdata *match, void *aux)
+{
+       struct amba_attach_args *aaa = aux;
+
+       if (strcmp(aaa->aaa_name, "dwctwo") != 0)
+               return 0;
+
+       return 1;
+}
+
+/* ARGSUSED */
+static void
+bcmdwc2_attach(device_t parent, device_t self, void *aux)
+{
+       struct bcmdwc2_softc *sc = device_private(self);
+       struct amba_attach_args *aaa = aux;
+       int error;
+
+       sc->sc_dwc2.sc_dev = self;
+
+       sc->sc_dwc2.sc_iot = aaa->aaa_iot;
+       sc->sc_dwc2.sc_bus.dmatag = aaa->aaa_dmat;
+       sc->sc_dwc2.sc_params = &bcmdwc2_params;
+
+       error = bus_space_map(aaa->aaa_iot, aaa->aaa_addr, aaa->aaa_size, 0,
+           &sc->sc_dwc2.sc_ioh);
+       if (error) {
+               aprint_error_dev(self,
+                   "can't map registers for %s: %d\n", aaa->aaa_name, error);
+               return;
+       }
+
+       aprint_naive(": USB controller\n");
+       aprint_normal(": USB controller\n");
+
+       sc->sc_ih = bcm2835_intr_establish(aaa->aaa_intr, IPL_USB,
+          dwc2_intr, &sc->sc_dwc2);
+
+       if (sc->sc_ih == NULL) {
+               aprint_error_dev(self, "failed to establish interrupt %d\n",
+                    aaa->aaa_intr);
+               goto fail;
+       }
+       config_defer(self, bcmdwc2_deferred);
+
+       return;
+
+fail:
+       if (sc->sc_ih) {
+               intr_disestablish(sc->sc_ih);
+               sc->sc_ih = NULL;
+       }
+       bus_space_unmap(sc->sc_dwc2.sc_iot, sc->sc_dwc2.sc_ioh, aaa->aaa_size);
+}
+
+static void
+bcmdwc2_deferred(device_t self)
+{
+       struct bcmdwc2_softc *sc = device_private(self);
+       int error;
+
+       error = dwc2_init(&sc->sc_dwc2);
+       if (error != 0) {
+               aprint_error_dev(self, "couldn't initialize host, error=%d\n",
+                   error);
+               return;
+       }
+       sc->sc_dwc2.sc_child = config_found(sc->sc_dwc2.sc_dev,
+           &sc->sc_dwc2.sc_bus, usbctlprint);
+}