mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
743fcce0a8
Sometimes there is a need to initialize some non-standard registers mapped to the EHCI region before accessing the standard EHCI registers. Add pre_setup() method with 'struct usb_hcd *' parameter to be called just before ehci_setup() to the 'ehci-platform' driver's platform data for this purpose... While at it, add the missing incomplete declaration of 'struct platform_device' to <linux/usb/ehci_pdriver.h>... The patch has been tested on the Marzen and BOCK-W boards. Suggested-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
60 lines
2.1 KiB
C
60 lines
2.1 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.
|
|
*
|
|
* 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;
|
|
|
|
/* 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 */
|