diff options
| author |   Peter Chen <peter.chen@freescale.com> | 2014-11-05 14:58:32 +0800 |
|---|---|---|
| committer | Peter Chen <peter.chen@freescale.com> | 2015-08-14 10:03:56 +0800 |
| commit | ed6e5eb50f7f07561d6a40f18bc11484736098db (patch) | |
| tree | dce4741eb70ab31c643693ea16ee5cb34f408668 /drivers/usb | |
| parent | usb: chipidea: add ahb burst configuration interface (diff) | |
| download | linux-dev-ed6e5eb50f7f07561d6a40f18bc11484736098db.tar.xz linux-dev-ed6e5eb50f7f07561d6a40f18bc11484736098db.zip | |
usb: chipidea: usbmisc_imx: add non-burst setting for imx6
With this setting and AHBBRST at SBUSCFG as "Incremental burst of
unspecified length", each non-burst size can be taken as single
transfer. It is benefit for non-burst size transfer.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/chipidea/usbmisc_imx.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index 3cefd49ddb00..5ddab30ee240 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -54,6 +54,7 @@ #define MX53_USB_PHYCTRL1_PLLDIV_MASK 0x3 #define MX53_USB_PLL_DIV_24_MHZ 0x01 +#define MX6_BM_NON_BURST_SETTING BIT(1) #define MX6_BM_OVER_CUR_DIS BIT(7) #define MX6_BM_WAKEUP_ENABLE BIT(10) #define MX6_BM_ID_WAKEUP BIT(16) @@ -255,14 +256,21 @@ static int usbmisc_imx6q_init(struct imx_usbmisc_data *data) if (data->index > 3) return -EINVAL; + spin_lock_irqsave(&usbmisc->lock, flags); + if (data->disable_oc) { - spin_lock_irqsave(&usbmisc->lock, flags); reg = readl(usbmisc->base + data->index * 4); writel(reg | MX6_BM_OVER_CUR_DIS, usbmisc->base + data->index * 4); - spin_unlock_irqrestore(&usbmisc->lock, flags); } + /* SoC non-burst setting */ + reg = readl(usbmisc->base + data->index * 4); + writel(reg | MX6_BM_NON_BURST_SETTING, + usbmisc->base + data->index * 4); + + spin_unlock_irqrestore(&usbmisc->lock, flags); + usbmisc_imx6q_set_wakeup(data, false); return 0; |