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Commit 9f90e111 authored by Alexander Shiyan's avatar Alexander Shiyan Committed by Greg Kroah-Hartman
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usb: chipidea: usbmisc: Add support for i.MX27/i.MX31 CPUs 



This adds i.MX27 and i.MX31 as the next user of the usbmisc driver.

Tested-by: default avatarChris Ruehl <chris.ruehl@gtsys.com.hk>
Signed-off-by: default avatarAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: default avatarPeter Chen <peter.chen@freescale.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 73de9344

drivers/usb/chipidea/usbmisc_imx.c

+42 −0
Original line number Diff line number Diff line
@@ -21,6 +21,10 @@ 
#define MX25_USB_PHY_CTRL_OFFSET	0x08

#define MX25_BM_EXTERNAL_VBUS_DIVIDER	BIT(23)



#define MX27_H1_PM_BIT			BIT(8)

#define MX27_H2_PM_BIT			BIT(16)

#define MX27_OTG_PM_BIT			BIT(24)



#define MX53_USB_OTG_PHY_CTRL_0_OFFSET	0x08

#define MX53_USB_UH2_CTRL_OFFSET	0x14

#define MX53_USB_UH3_CTRL_OFFSET	0x18
@@ -68,6 +72,36 @@ static int usbmisc_imx25_post(struct imx_usbmisc_data *data) 
	return 0;

}



static int usbmisc_imx27_init(struct imx_usbmisc_data *data)

{

	unsigned long flags;

	u32 val;



	switch (data->index) {

	case 0:

		val = MX27_OTG_PM_BIT;

		break;

	case 1:

		val = MX27_H1_PM_BIT;

		break;

	case 2:

		val = MX27_H2_PM_BIT;

		break;

	default:

		return -EINVAL;

	};



	spin_lock_irqsave(&usbmisc->lock, flags);

	if (data->disable_oc)

		val = readl(usbmisc->base) | val;

	else

		val = readl(usbmisc->base) & ~val;

	writel(val, usbmisc->base);

	spin_unlock_irqrestore(&usbmisc->lock, flags);



	return 0;

}



static int usbmisc_imx53_init(struct imx_usbmisc_data *data)

{

	void __iomem *reg = NULL;
@@ -128,6 +162,10 @@ static const struct usbmisc_ops imx25_usbmisc_ops = { 
	.post = usbmisc_imx25_post,

};



static const struct usbmisc_ops imx27_usbmisc_ops = {

	.init = usbmisc_imx27_init,

};



static const struct usbmisc_ops imx53_usbmisc_ops = {

	.init = usbmisc_imx53_init,

};
@@ -161,6 +199,10 @@ static const struct of_device_id usbmisc_imx_dt_ids[] = { 
		.compatible = "fsl,imx25-usbmisc",

		.data = &imx25_usbmisc_ops,

	},

	{

		.compatible = "fsl,imx27-usbmisc",

		.data = &imx27_usbmisc_ops,

	},

	{

		.compatible = "fsl,imx53-usbmisc",

		.data = &imx53_usbmisc_ops,