redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

usb: chipidea: Fix Internal error: : 808 [#1] ARM related to STS flag

Browse source 
* init the sts flag to 0 (missed)
* fix write the real bit not sts value
* Set PORTCS_STS and DEVLC_STS only if sts = 1

[Peter Chen: This one and the next patch fix the problem occurred imx27
and imx31, and imx27 and imx31 usb support are enabled until 3.14, so
these two patches isn't needed for -stable]

Signed-off-by: Chris Ruehl <chris.ruehl@gtsys.com.hk>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chris Ruehl 2014-01-10 13:51:29 +08:00 committed by Greg Kroah-Hartman
parent 1071055e2a
commit 3b5d3e6845
1 changed files with 5 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/usb/chipidea/core.c
View file

@ -236,7 +236,7 @@ static int hw_device_init(struct ci_hdrc *ci, void __iomem *base)
static void hw_phymode_configure(struct ci_hdrc *ci)
{
u32 portsc, lpm, sts;
u32 portsc, lpm, sts = 0;
switch (ci->platdata->phy_mode) {
case USBPHY_INTERFACE_MODE_UTMI:
@ -266,10 +266,12 @@ static void hw_phymode_configure(struct ci_hdrc *ci)
if (ci->hw_bank.lpm) {
hw_write(ci, OP_DEVLC, DEVLC_PTS(7) | DEVLC_PTW, lpm);
hw_write(ci, OP_DEVLC, DEVLC_STS, sts);
if (sts)
hw_write(ci, OP_DEVLC, DEVLC_STS, DEVLC_STS);
} else {
hw_write(ci, OP_PORTSC, PORTSC_PTS(7) | PORTSC_PTW, portsc);
hw_write(ci, OP_PORTSC, PORTSC_STS, sts);
if (sts)
hw_write(ci, OP_PORTSC, PORTSC_STS, PORTSC_STS);
}
}