From: Yuan-Hsin Chen <yuanlmm@gmail.com>
To: balbi@ti.com, gregkh@linuxfoundation.org,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Yuan-Hsin Chen <yhchen@faraday-tech.com>
Subject: [PATCH v2 1/2] usb: gadget: fusb300_udc: add FUSB300_EPSET0_STL_CLR for clearing EP0 stall
Date: Tue, 2 Apr 2013 11:15:28 +0000 [thread overview]
Message-ID: <1364901328-21405-1-git-send-email-yhchen@faraday-tech.com> (raw)
In-Reply-To: <1361516979-7340-1-git-send-email-yhchen@faraday-tech.com>
The final version of fusb300 controller adds EPSET0_STL_CLR
for clearing EP0 stall and also removes EPSET0_EPn_TX0BYTE.
fusb300_udc driver is tested on FARADAY platform a369 with
FUSB300 FPGA v1.8
Signed-off-by: Yuan-Hsin Chen <yhchen@faraday-tech.com>
---
v2:
split patch
drivers/usb/gadget/fusb300_udc.c | 2 +-
drivers/usb/gadget/fusb300_udc.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c
index 72cd5e6..c20cc58 100644
--- a/drivers/usb/gadget/fusb300_udc.c
+++ b/drivers/usb/gadget/fusb300_udc.c
@@ -394,7 +394,7 @@ static void fusb300_clear_epnstall(struct fusb300 *fusb300, u8 ep)
if (reg & FUSB300_EPSET0_STL) {
printk(KERN_DEBUG "EP%d stall... Clear!!\n", ep);
- reg &= ~FUSB300_EPSET0_STL;
+ reg |= FUSB300_EPSET0_STL_CLR;
iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET0(ep));
}
}
diff --git a/drivers/usb/gadget/fusb300_udc.h b/drivers/usb/gadget/fusb300_udc.h
index 542cd83..ccae1b5 100644
--- a/drivers/usb/gadget/fusb300_udc.h
+++ b/drivers/usb/gadget/fusb300_udc.h
@@ -111,8 +111,8 @@
/*
* * EPn Setting 0 (EPn_SET0, offset = 020H+(n-1)*30H, n=1~15 )
* */
+#define FUSB300_EPSET0_STL_CLR (1 << 3)
#define FUSB300_EPSET0_CLRSEQNUM (1 << 2)
-#define FUSB300_EPSET0_EPn_TX0BYTE (1 << 1)
#define FUSB300_EPSET0_STL (1 << 0)
/*
--
1.7.4.1
next prev parent reply other threads:[~2013-04-02 11:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-22 7:09 [PATCH] fusb300_udc: modify stall clear and idma reset procedure Yuan-Hsin Chen
2013-02-26 17:59 ` Felipe Balbi
2013-03-04 9:02 ` Yuan-Hsin Chen
2013-04-02 11:15 ` Yuan-Hsin Chen [this message]
2013-04-02 11:18 ` [PATCH v2 2/2] usb: gadget: fusb300_udc: bug fix of not doing idma reset for each time Yuan-Hsin Chen
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