Commit c56a2b2b authored Nov 06, 2015 by Andy Gross Committed by Greg Kroah-Hartman Dec 01, 2015

usb: host: ehci-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>
Tested-by: Georgi Djakov <georgi.djakov@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 5ce7d27d

drivers/usb/host/ehci-msm.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -57,8 +57,8 @@ static int ehci_msm_reset(struct usb_hcd *hcd)

		/* bursts of unspecified length. */
		writel(0, USB_AHBBURST);
		/* Use the AHB transactor */
		writel(0, USB_AHBMODE);
		/* Use the AHB transactor, allow posted data writes */
		writel(0x8, USB_AHBMODE);
		/* Disable streaming mode and select host mode */
		writel(0x13, USB_USBMODE);