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Commit c10b4f03 authored by Peter Chen's avatar Peter Chen Committed by Greg Kroah-Hartman
Browse files

usb: chipidea: otg: add otg file used to access otgsc 



This file is mainly used to access otgsc currently, it may
add otg related things in the future.

Tested-by: default avatarMarek Vasut <marex@denx.de>
Signed-off-by: default avatarPeter Chen <peter.chen@freescale.com>
Signed-off-by: default avatarAlexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d66895f9

drivers/usb/chipidea/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -2,7 +2,7 @@ ccflags-$(CONFIG_USB_CHIPIDEA_DEBUG) := -DDEBUG 


obj-$(CONFIG_USB_CHIPIDEA)		+= ci_hdrc.o



ci_hdrc-y				:= core.o

ci_hdrc-y				:= core.o otg.o

ci_hdrc-$(CONFIG_USB_CHIPIDEA_UDC)	+= udc.o

ci_hdrc-$(CONFIG_USB_CHIPIDEA_HOST)	+= host.o

ci_hdrc-$(CONFIG_USB_CHIPIDEA_DEBUG)	+= debug.o

drivers/usb/chipidea/bits.h

+10 −0
Original line number Diff line number Diff line
@@ -79,11 +79,21 @@ 
#define OTGSC_ASVIS	      BIT(18)

#define OTGSC_BSVIS	      BIT(19)

#define OTGSC_BSEIS	      BIT(20)

#define OTGSC_1MSIS	      BIT(21)

#define OTGSC_DPIS	      BIT(22)

#define OTGSC_IDIE	      BIT(24)

#define OTGSC_AVVIE	      BIT(25)

#define OTGSC_ASVIE	      BIT(26)

#define OTGSC_BSVIE	      BIT(27)

#define OTGSC_BSEIE	      BIT(28)

#define OTGSC_1MSIE	      BIT(29)

#define OTGSC_DPIE	      BIT(30)

#define OTGSC_INT_EN_BITS	(OTGSC_IDIE | OTGSC_AVVIE | OTGSC_ASVIE \

				| OTGSC_BSVIE | OTGSC_BSEIE | OTGSC_1MSIE \

				| OTGSC_DPIE)

#define OTGSC_INT_STATUS_BITS	(OTGSC_IDIS | OTGSC_AVVIS | OTGSC_ASVIS	\

				| OTGSC_BSVIS | OTGSC_BSEIS | OTGSC_1MSIS \

				| OTGSC_DPIS)



/* USBMODE */

#define USBMODE_CM            (0x03UL <<  0)

drivers/usb/chipidea/core.c

+2 −1
Original line number Diff line number Diff line
@@ -72,6 +72,7 @@ 
#include "bits.h"

#include "host.h"

#include "debug.h"

#include "otg.h"



/* Controller register map */

static uintptr_t ci_regs_nolpm[] = {
@@ -528,7 +529,7 @@ static int ci_hdrc_probe(struct platform_device *pdev) 
		goto stop;



	if (ci->is_otg)

		hw_write(ci, OP_OTGSC, OTGSC_IDIE, OTGSC_IDIE);

		ci_hdrc_otg_init(ci);



	ret = dbg_create_files(ci);

	if (!ret)

drivers/usb/chipidea/otg.c

0 → 100644
+35 −0
Original line number Diff line number Diff line 
/*

 * otg.c - ChipIdea USB IP core OTG driver

 *

 * Copyright (C) 2013 Freescale Semiconductor, Inc.

 *

 * Author: Peter Chen

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */



/*

 * This file mainly handles otgsc register, it may include OTG operation

 * in the future.

 */



#include <linux/usb/otg.h>

#include <linux/usb/gadget.h>

#include <linux/usb/chipidea.h>



#include "ci.h"

#include "bits.h"

#include "otg.h"



/**

 * ci_hdrc_otg_init - initialize otgsc bits

 * ci: the controller

 */

int ci_hdrc_otg_init(struct ci_hdrc *ci)

{

	ci_enable_otg_interrupt(ci, OTGSC_IDIE);



	return 0;

}

drivers/usb/chipidea/otg.h

0 → 100644
+32 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2013 Freescale Semiconductor, Inc.

 *

 * Author: Peter Chen

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */



#ifndef __DRIVERS_USB_CHIPIDEA_OTG_H

#define __DRIVERS_USB_CHIPIDEA_OTG_H



static inline void ci_clear_otg_interrupt(struct ci_hdrc *ci, u32 bits)

{

	/* Only clear request bits */

	hw_write(ci, OP_OTGSC, OTGSC_INT_STATUS_BITS, bits);

}



static inline void ci_enable_otg_interrupt(struct ci_hdrc *ci, u32 bits)

{

	hw_write(ci, OP_OTGSC, bits, bits);

}



static inline void ci_disable_otg_interrupt(struct ci_hdrc *ci, u32 bits)

{

	hw_write(ci, OP_OTGSC, bits, 0);

}



int ci_hdrc_otg_init(struct ci_hdrc *ci);



#endif /* __DRIVERS_USB_CHIPIDEA_OTG_H */