linux_dsm_epyc7002/include/linux/usb/ehci_pdriver.h
Andreas Herrmann c99e76c55f USB: host: Introduce flag to enable use of 64-bit dma_mask for ehci-platform
ehci-octeon driver used a 64-bit dma_mask. With removal of ehci-octeon
and usage of ehci-platform ehci dma_mask is now limited to 32 bits
(coerced in ehci_platform_probe).

Provide a flag in ehci platform data to allow use of 64 bits for
dma_mask.

Cc: David Daney <david.daney@cavium.com>
Cc: Alex Smith <alex.smith@imgtec.com>
Signed-off-by: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-25 20:48:28 +08:00

64 lines
2.3 KiB
C

/*
* Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __USB_CORE_EHCI_PDRIVER_H
#define __USB_CORE_EHCI_PDRIVER_H
struct platform_device;
struct usb_hcd;
/**
* struct usb_ehci_pdata - platform_data for generic ehci driver
*
* @caps_offset: offset of the EHCI Capability Registers to the start of
* the io memory region provided to the driver.
* @has_tt: set to 1 if TT is integrated in root hub.
* @port_power_on: set to 1 if the controller needs a power up after
* initialization.
* @port_power_off: set to 1 if the controller needs to be powered down
* after initialization.
* @no_io_watchdog: set to 1 if the controller does not need the I/O
* watchdog to run.
* @reset_on_resume: set to 1 if the controller needs to be reset after
* a suspend / resume cycle (but can't detect that itself).
*
* These are general configuration options for the EHCI controller. All of
* these options are activating more or less workarounds for some hardware.
*/
struct usb_ehci_pdata {
int caps_offset;
unsigned has_tt:1;
unsigned has_synopsys_hc_bug:1;
unsigned big_endian_desc:1;
unsigned big_endian_mmio:1;
unsigned no_io_watchdog:1;
unsigned reset_on_resume:1;
unsigned dma_mask_64:1;
/* Turn on all power and clocks */
int (*power_on)(struct platform_device *pdev);
/* Turn off all power and clocks */
void (*power_off)(struct platform_device *pdev);
/* Turn on only VBUS suspend power and hotplug detection,
* turn off everything else */
void (*power_suspend)(struct platform_device *pdev);
int (*pre_setup)(struct usb_hcd *hcd);
};
#endif /* __USB_CORE_EHCI_PDRIVER_H */