d1cc1732cc
This change adds support for accessing the USB shim from within the kernel. Note that this change by itself does not allow the kernel to act as a host or as a device; it merely exposes the built-in on-chip hardware to the kernel. The <arch/usb_host.h> and <arch/usb_host_def.h> headers are empty at the moment because the kernel does not require any types or definitions specific to the tilegx USB shim; the generic USB core code is all we need. The headers are left in as stubs so that we don't need to modify the hypervisor header (drv_usb_host_intf.h) from upstream. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/*
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* Copyright 2012 Tilera Corporation. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for
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* more details.
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*/
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/**
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* Interface definitions for the USB host driver.
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*/
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#ifndef _SYS_HV_DRV_USB_HOST_INTF_H
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#define _SYS_HV_DRV_USB_HOST_INTF_H
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#include <arch/usb_host.h>
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/** Offset for the EHCI register MMIO region. */
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#define HV_USB_HOST_MMIO_OFFSET_EHCI ((uint64_t) USB_HOST_HCCAPBASE_REG)
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/** Offset for the OHCI register MMIO region. */
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#define HV_USB_HOST_MMIO_OFFSET_OHCI ((uint64_t) USB_HOST_OHCD_HC_REVISION_REG)
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/** Size of the register MMIO region. This turns out to be the same for
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* both EHCI and OHCI. */
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#define HV_USB_HOST_MMIO_SIZE ((uint64_t) 0x1000)
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/** The number of service domains supported by the USB host shim. */
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#define HV_USB_HOST_NUM_SVC_DOM 1
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#endif /* _SYS_HV_DRV_USB_HOST_INTF_H */
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