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[v2,3/8] usb: chipidea: usbmisc: Add USB Host support for i.MX25/i.MX35 CPUs

Message ID 1394535304-10240-3-git-send-email-denis@eukrea.com (mailing list archive)
State New, archived
Headers show

Commit Message

Denis Carikli March 11, 2014, 10:54 a.m. UTC
Signed-off-by: Denis Carikli <denis@eukrea.com>
---
Changelog v1->v2:
- converted two remaining defines to BIT()
- Removed a variable declaration that was not used in usbmisc_imx25_init
---
 drivers/usb/chipidea/usbmisc_imx.c |   58 ++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

Comments

Peter Chen March 12, 2014, 6:08 a.m. UTC | #1
On Tue, Mar 11, 2014 at 11:54:59AM +0100, Denis Carikli wrote:
> Signed-off-by: Denis Carikli <denis@eukrea.com>
> ---

Add something at commit log please.

> Changelog v1->v2:
> - converted two remaining defines to BIT()
> - Removed a variable declaration that was not used in usbmisc_imx25_init
> ---
>  drivers/usb/chipidea/usbmisc_imx.c |   58 ++++++++++++++++++++++++++++++++++++
>  1 file changed, 58 insertions(+)
> 
> diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
> index cd061ab..3523c09 100644
> --- a/drivers/usb/chipidea/usbmisc_imx.c
> +++ b/drivers/usb/chipidea/usbmisc_imx.c
> @@ -21,6 +21,26 @@
>  #define MX25_USB_PHY_CTRL_OFFSET	0x08
>  #define MX25_BM_EXTERNAL_VBUS_DIVIDER	BIT(23)
>  
> +#define MXC_EHCI_INTERFACE_SINGLE_UNI	(2 << 0)
> +#define MXC_EHCI_INTERFACE_DIFF_UNI	(0 << 0)
> +#define MXC_EHCI_INTERFACE_MASK		(0xf)
> +

Which SoCs will use above Macros?
If only imx25 and imx35, using prefix MX25 please.
Otherwise, adding prefix IMX_ for above Macros and
the comment for which SoC needs them.

> +#define MX25_OTG_SIC_SHIFT		29
> +#define MX25_OTG_SIC_MASK		(0x3 << MX25_OTG_SIC_SHIFT)
> +#define MX25_OTG_PM_BIT			BIT(24)
> +#define MX25_OTG_PP_BIT			BIT(11)
> +#define MX25_OTG_OCPOL_BIT		BIT(3)
> +
> +#define MX25_H1_SIC_SHIFT		21
> +#define MX25_H1_SIC_MASK		(0x3 << MX25_H1_SIC_SHIFT)
> +#define MX25_H1_PP_BIT			BIT(18)
> +#define MX25_H1_PM_BIT			BIT(16)
> +#define MX25_H1_IPPUE_UP_BIT		BIT(7)
> +#define MX25_H1_IPPUE_DOWN_BIT		BIT(6)
> +#define MX25_H1_TLL_BIT			BIT(5)
> +#define MX25_H1_USBTE_BIT		BIT(4)
> +#define MX25_H1_OCPOL_BIT		BIT(2)
> +
>  #define MX27_H1_PM_BIT			BIT(8)
>  #define MX27_H2_PM_BIT			BIT(16)
>  #define MX27_OTG_PM_BIT			BIT(24)
> @@ -50,6 +70,39 @@ struct imx_usbmisc {
>  
>  static struct imx_usbmisc *usbmisc;
>  
> +static int usbmisc_imx25_init(struct imx_usbmisc_data *data)
> +{
> +	unsigned long flags;
> +	u32 val = 0;
> +
> +	if (data->index > 1)
> +		return -EINVAL;
> +
> +	spin_lock_irqsave(&usbmisc->lock, flags);
> +	switch (data->index) {
> +	case 0:
> +		val = readl(usbmisc->base);
> +		val &= ~(MX25_OTG_SIC_MASK | MX25_OTG_PP_BIT);
> +		val |= (MXC_EHCI_INTERFACE_DIFF_UNI & MXC_EHCI_INTERFACE_MASK) << MX25_OTG_SIC_SHIFT;
> +		val |= (MX25_OTG_PM_BIT | MX25_OTG_OCPOL_BIT);
> +		writel(val, usbmisc->base);
> +		break;
> +	case 1:
> +		val = readl(usbmisc->base);
> +		val &= ~(MX25_H1_SIC_MASK | MX25_H1_PP_BIT |  MX25_H1_IPPUE_UP_BIT);
> +		val |= (MXC_EHCI_INTERFACE_SINGLE_UNI & MXC_EHCI_INTERFACE_MASK) << MX25_H1_SIC_SHIFT;
> +		val |= (MX25_H1_PM_BIT | MX25_H1_OCPOL_BIT | MX25_H1_TLL_BIT |
> +			MX25_H1_USBTE_BIT | MX25_H1_IPPUE_DOWN_BIT);
> +
> +		writel(val, usbmisc->base);
> +
> +		break;
> +	}
> +	spin_unlock_irqrestore(&usbmisc->lock, flags);
> +
> +	return 0;
> +}
> +
>  static int usbmisc_imx25_post(struct imx_usbmisc_data *data)
>  {
>  	void __iomem *reg;
> @@ -159,6 +212,7 @@ static int usbmisc_imx6q_init(struct imx_usbmisc_data *data)
>  }
>  
>  static const struct usbmisc_ops imx25_usbmisc_ops = {
> +	.init = usbmisc_imx25_init,
>  	.post = usbmisc_imx25_post,
>  };
>  
> @@ -200,6 +254,10 @@ static const struct of_device_id usbmisc_imx_dt_ids[] = {
>  		.data = &imx25_usbmisc_ops,
>  	},
>  	{
> +		.compatible = "fsl,imx35-usbmisc",
> +		.data = &imx25_usbmisc_ops,
> +	},
> +	{
>  		.compatible = "fsl,imx27-usbmisc",
>  		.data = &imx27_usbmisc_ops,
>  	},
> -- 
> 1.7.9.5
> 
> --
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> 
>
diff mbox

Patch

diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
index cd061ab..3523c09 100644
--- a/drivers/usb/chipidea/usbmisc_imx.c
+++ b/drivers/usb/chipidea/usbmisc_imx.c
@@ -21,6 +21,26 @@ 
 #define MX25_USB_PHY_CTRL_OFFSET	0x08
 #define MX25_BM_EXTERNAL_VBUS_DIVIDER	BIT(23)
 
+#define MXC_EHCI_INTERFACE_SINGLE_UNI	(2 << 0)
+#define MXC_EHCI_INTERFACE_DIFF_UNI	(0 << 0)
+#define MXC_EHCI_INTERFACE_MASK		(0xf)
+
+#define MX25_OTG_SIC_SHIFT		29
+#define MX25_OTG_SIC_MASK		(0x3 << MX25_OTG_SIC_SHIFT)
+#define MX25_OTG_PM_BIT			BIT(24)
+#define MX25_OTG_PP_BIT			BIT(11)
+#define MX25_OTG_OCPOL_BIT		BIT(3)
+
+#define MX25_H1_SIC_SHIFT		21
+#define MX25_H1_SIC_MASK		(0x3 << MX25_H1_SIC_SHIFT)
+#define MX25_H1_PP_BIT			BIT(18)
+#define MX25_H1_PM_BIT			BIT(16)
+#define MX25_H1_IPPUE_UP_BIT		BIT(7)
+#define MX25_H1_IPPUE_DOWN_BIT		BIT(6)
+#define MX25_H1_TLL_BIT			BIT(5)
+#define MX25_H1_USBTE_BIT		BIT(4)
+#define MX25_H1_OCPOL_BIT		BIT(2)
+
 #define MX27_H1_PM_BIT			BIT(8)
 #define MX27_H2_PM_BIT			BIT(16)
 #define MX27_OTG_PM_BIT			BIT(24)
@@ -50,6 +70,39 @@  struct imx_usbmisc {
 
 static struct imx_usbmisc *usbmisc;
 
+static int usbmisc_imx25_init(struct imx_usbmisc_data *data)
+{
+	unsigned long flags;
+	u32 val = 0;
+
+	if (data->index > 1)
+		return -EINVAL;
+
+	spin_lock_irqsave(&usbmisc->lock, flags);
+	switch (data->index) {
+	case 0:
+		val = readl(usbmisc->base);
+		val &= ~(MX25_OTG_SIC_MASK | MX25_OTG_PP_BIT);
+		val |= (MXC_EHCI_INTERFACE_DIFF_UNI & MXC_EHCI_INTERFACE_MASK) << MX25_OTG_SIC_SHIFT;
+		val |= (MX25_OTG_PM_BIT | MX25_OTG_OCPOL_BIT);
+		writel(val, usbmisc->base);
+		break;
+	case 1:
+		val = readl(usbmisc->base);
+		val &= ~(MX25_H1_SIC_MASK | MX25_H1_PP_BIT |  MX25_H1_IPPUE_UP_BIT);
+		val |= (MXC_EHCI_INTERFACE_SINGLE_UNI & MXC_EHCI_INTERFACE_MASK) << MX25_H1_SIC_SHIFT;
+		val |= (MX25_H1_PM_BIT | MX25_H1_OCPOL_BIT | MX25_H1_TLL_BIT |
+			MX25_H1_USBTE_BIT | MX25_H1_IPPUE_DOWN_BIT);
+
+		writel(val, usbmisc->base);
+
+		break;
+	}
+	spin_unlock_irqrestore(&usbmisc->lock, flags);
+
+	return 0;
+}
+
 static int usbmisc_imx25_post(struct imx_usbmisc_data *data)
 {
 	void __iomem *reg;
@@ -159,6 +212,7 @@  static int usbmisc_imx6q_init(struct imx_usbmisc_data *data)
 }
 
 static const struct usbmisc_ops imx25_usbmisc_ops = {
+	.init = usbmisc_imx25_init,
 	.post = usbmisc_imx25_post,
 };
 
@@ -200,6 +254,10 @@  static const struct of_device_id usbmisc_imx_dt_ids[] = {
 		.data = &imx25_usbmisc_ops,
 	},
 	{
+		.compatible = "fsl,imx35-usbmisc",
+		.data = &imx25_usbmisc_ops,
+	},
+	{
 		.compatible = "fsl,imx27-usbmisc",
 		.data = &imx27_usbmisc_ops,
 	},