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Commit ed6e5eb5 authored by Peter Chen's avatar Peter Chen
Browse files

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: default avatarPeter Chen <peter.chen@freescale.com>
parent 65668718

drivers/usb/chipidea/usbmisc_imx.c

+10 −2
Original line number Diff line number Diff line
@@ -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;



	if (data->disable_oc) {

	spin_lock_irqsave(&usbmisc->lock, flags);



	if (data->disable_oc) {

		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;