From: peter.chen@freescale.com (Peter Chen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v13 05/14] usb: chipidea: otg: Add otg file used to access otgsc
Date: Fri, 26 Jul 2013 17:18:21 +0800 [thread overview]
Message-ID: <1374830310-21765-6-git-send-email-peter.chen@freescale.com> (raw)
In-Reply-To: <1374830310-21765-1-git-send-email-peter.chen@freescale.com>
This file is mainly used to access otgsc currently, it may
add otg related things in the future.
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
---
drivers/usb/chipidea/Makefile | 2 +-
drivers/usb/chipidea/bits.h | 10 ++++++++
drivers/usb/chipidea/core.c | 3 +-
drivers/usb/chipidea/otg.c | 50 +++++++++++++++++++++++++++++++++++++++++
drivers/usb/chipidea/otg.h | 19 +++++++++++++++
5 files changed, 82 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile
index 6cf5f68..a99d980 100644
--- a/drivers/usb/chipidea/Makefile
+++ b/drivers/usb/chipidea/Makefile
@@ -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
diff --git a/drivers/usb/chipidea/bits.h b/drivers/usb/chipidea/bits.h
index aefa026..dd0cf9e 100644
--- a/drivers/usb/chipidea/bits.h
+++ b/drivers/usb/chipidea/bits.h
@@ -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)
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index a5df24c..761f7e8 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -71,6 +71,7 @@
#include "bits.h"
#include "host.h"
#include "debug.h"
+#include "otg.h"
/* Controller register map */
static uintptr_t ci_regs_nolpm[] = {
@@ -508,7 +509,7 @@ 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)
diff --git a/drivers/usb/chipidea/otg.c b/drivers/usb/chipidea/otg.c
new file mode 100644
index 0000000..abefb4d
--- /dev/null
+++ b/drivers/usb/chipidea/otg.c
@@ -0,0 +1,50 @@
+/*
+ * 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"
+
+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);
+}
+
+void ci_enable_otg_interrupt(struct ci_hdrc *ci, u32 bits)
+{
+ hw_write(ci, OP_OTGSC, bits, bits);
+}
+
+void ci_disable_otg_interrupt(struct ci_hdrc *ci, u32 bits)
+{
+ hw_write(ci, OP_OTGSC, bits, 0);
+}
+
+/**
+ * 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;
+}
diff --git a/drivers/usb/chipidea/otg.h b/drivers/usb/chipidea/otg.h
new file mode 100644
index 0000000..f24ec37
--- /dev/null
+++ b/drivers/usb/chipidea/otg.h
@@ -0,0 +1,19 @@
+/*
+ * 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
+
+int ci_hdrc_otg_init(struct ci_hdrc *ci);
+void ci_clear_otg_interrupt(struct ci_hdrc *ci, u32 bits);
+void ci_enable_otg_interrupt(struct ci_hdrc *ci, u32 bits);
+void ci_disable_otg_interrupt(struct ci_hdrc *ci, u32 bits);
+
+#endif /* __DRIVERS_USB_CHIPIDEA_OTG_H */
--
1.7.0.4
next prev parent reply other threads:[~2013-07-26 9:18 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-26 9:18 [PATCH v13 00/14] Add tested id switch and vbus connect detect support for Chipidea Peter Chen
2013-07-26 9:18 ` [PATCH v13 01/14] usb: chipidea: add vbus regulator control Peter Chen
2013-07-26 9:18 ` [PATCH v13 02/14] usb: chipidea: imx: remove vbus regulator operation Peter Chen
2013-07-29 22:30 ` Michael Grzeschik
2013-07-30 1:46 ` Peter Chen
2013-07-26 9:18 ` [PATCH v13 03/14] usb: chipidea: imx: add return value check for devm_regulator_get Peter Chen
2013-07-29 22:47 ` Michael Grzeschik
2013-07-30 1:50 ` Peter Chen
2013-07-26 9:18 ` [PATCH v13 04/14] usb: chipidea: udc: otg_set_peripheral is useless for some chipidea users Peter Chen
2013-07-26 9:18 ` Peter Chen [this message]
2013-07-26 9:18 ` [PATCH v13 06/14] usb: chipidea: Add role init and destory APIs Peter Chen
2013-07-26 9:18 ` [PATCH v13 07/14] usb: chipidea: add flag CI_HDRC_DUAL_ROLE_NOT_OTG Peter Chen
2013-07-26 9:18 ` [PATCH v13 08/14] usb: chipidea: disable all interrupts and clear all interrupts status Peter Chen
2013-07-26 9:18 ` [PATCH v13 09/14] usb: chipidea: move otg relate things to otg file Peter Chen
2013-07-26 9:18 ` [PATCH v13 10/14] usb: chipidea: add vbus interrupt handler Peter Chen
2013-07-26 9:18 ` [PATCH v13 11/14] usb: chipidea: add wait vbus lower than OTGSC_BSV before role starts Peter Chen
2013-07-26 9:18 ` [PATCH v13 12/14] usb: chipidea: udc: misuse flag CI_HDRC_REGS_SHARED and CI_HDRC_PULLUP_ON_VBUS Peter Chen
2013-07-26 9:18 ` [PATCH v13 13/14] usb: chipidea: udc: .pullup is valid when vbus is on at CI_HDRC_PULLUP_ON_VBUS Peter Chen
2013-07-26 9:18 ` [PATCH v13 14/14] usb: chipidea: udc: fix the oops when plugs in usb cable after rmmod gadget Peter Chen
2013-07-31 14:14 ` [PATCH v13 00/14] Add tested id switch and vbus connect detect support for Chipidea Chen Peter-B29397
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1374830310-21765-6-git-send-email-peter.chen@freescale.com \
--to=peter.chen@freescale.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).