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authorAndy Gross <agross@codeaurora.org>2015-11-06 09:04:06 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-12-02 01:57:12 +0300
commit5ce7d27d5c4dd40d7b147f7a4c2f7308508208a7 (patch)
tree9ca41b7940607eee3ba20c6161eded4f8b8e7452 /drivers/usb/chipidea
parent8ab0f723af247af8dd92196c152c8f1da0254b2f (diff)
downloadlinux-5ce7d27d5c4dd40d7b147f7a4c2f7308508208a7.tar.xz
usb: chipidea: msm: Use posted data writes on AHB
This patch sets the AHBMODE to allow for posted data writes. This results in higher performance. Signed-off-by: Andy Gross <agross@codeaurora.org> Acked-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea')
-rw-r--r--drivers/usb/chipidea/ci_hdrc_msm.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
index d79ecc08a1be..3889809fd0c4 100644
--- a/drivers/usb/chipidea/ci_hdrc_msm.c
+++ b/drivers/usb/chipidea/ci_hdrc_msm.c
@@ -25,7 +25,8 @@ static void ci_hdrc_msm_notify_event(struct ci_hdrc *ci, unsigned event)
case CI_HDRC_CONTROLLER_RESET_EVENT:
dev_dbg(dev, "CI_HDRC_CONTROLLER_RESET_EVENT received\n");
writel(0, USB_AHBBURST);
- writel(0, USB_AHBMODE);
+ /* use AHB transactor, allow posted data writes */
+ writel(0x8, USB_AHBMODE);
usb_phy_init(ci->usb_phy);
break;
case CI_HDRC_CONTROLLER_STOPPED_EVENT: