On Thu, Mar 13, 2014 at 10:18:41AM +0100, Denis Carikli wrote:
> This adds the i.MX25 and the i.MX35 support in the
> ChipIdea usbmisc driver.
>
> The i.MX25 and i.MX35 usb controllers are similar enough to be
> able to use the same code.
>
> Signed-off-by: Denis Carikli <denis@xxxxxxxxxx>
> ---
> Changelog v3->v4:
> - The MXC_EHCI_INTERFACE_* were renamed in MX25_EHCI_INTERFACE_*
> - Since the peripheral mode also works with USB OTG,
> the commit summary was updated to reflect that.
>
> Changelog v2->v3:
> - Add a commit log
>
> 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..419b895 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 MX25_EHCI_INTERFACE_SINGLE_UNI (2 << 0)
> +#define MX25_EHCI_INTERFACE_DIFF_UNI (0 << 0)
> +#define MX25_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 |= (MX25_EHCI_INTERFACE_DIFF_UNI & MX25_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 |= (MX25_EHCI_INTERFACE_SINGLE_UNI & MX25_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
>
>
>
Applied, thanks.
--
Best Regards,
Peter Chen
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