diff options
| author | Andy Gross <agross@codeaurora.org> | 2015-11-06 09:04:07 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-02 01:57:12 +0300 |
| commit | c56a2b2bc661fe089fde9beffeadcb0ecb5e934b (patch) | |
| tree | 122a18a4b72d4be386bea446898fc9d474a59f7c /drivers/usb/host | |
| parent | 5ce7d27d5c4dd40d7b147f7a4c2f7308508208a7 (diff) | |
| download | linux-c56a2b2bc661fe089fde9beffeadcb0ecb5e934b.tar.xz | |
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>
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/ehci-msm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c index c4f84c81de01..c23e2858c815 100644 --- a/drivers/usb/host/ehci-msm.c +++ b/drivers/usb/host/ehci-msm.c @@ -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); |