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authorSascha Hauer <s.hauer@pengutronix.de>2017-01-13 12:12:09 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2017-01-19 15:20:50 +0100
commit2eb99b610bf321eb56aba5d72d1b4ff346823374 (patch)
tree359b2ff33b97b5eeef05ee234ae85143b6cdcebc
parentfc10539f7dc088f2466cfcf21899a461f93feedf (diff)
downloadbarebox-2eb99b610bf321eb56aba5d72d1b4ff346823374.tar.gz
usb: imx: Add usbmisc support for i.MX7
Taken directly from Linux-4.10-rc3 Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--drivers/usb/imx/imx-usb-misc.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/usb/imx/imx-usb-misc.c b/drivers/usb/imx/imx-usb-misc.c
index b7606e2..dc0de9e 100644
--- a/drivers/usb/imx/imx-usb-misc.c
+++ b/drivers/usb/imx/imx-usb-misc.c
@@ -353,6 +353,7 @@ static __maybe_unused struct imx_usb_misc_data mx5_data = {
#define MX6_USB_CTRL(n) ((n) * 4)
#define MX6_USB_CTRL_OVER_CUR_DIS (1 << 7)
+#define MX6_USB_CTRL_OVER_CUR_ACT_HIGH (1 << 8)
static void mx6_hsic_pullup(unsigned long reg, int on)
{
@@ -427,6 +428,46 @@ static __maybe_unused struct imx_usb_misc_data mx6_data = {
.post_init = mx6_post_init,
};
+#define MX7D_USBNC_USB_CTRL2 0x4
+#define MX7D_USB_VBUS_WAKEUP_SOURCE_MASK 0x3
+#define MX7D_USB_VBUS_WAKEUP_SOURCE(v) (v << 0)
+#define MX7D_USB_VBUS_WAKEUP_SOURCE_VBUS MX7D_USB_VBUS_WAKEUP_SOURCE(0)
+#define MX7D_USB_VBUS_WAKEUP_SOURCE_AVALID MX7D_USB_VBUS_WAKEUP_SOURCE(1)
+#define MX7D_USB_VBUS_WAKEUP_SOURCE_BVALID MX7D_USB_VBUS_WAKEUP_SOURCE(2)
+#define MX7D_USB_VBUS_WAKEUP_SOURCE_SESS_END MX7D_USB_VBUS_WAKEUP_SOURCE(3)
+
+static int usbmisc_imx7d_init(void __iomem *base, int port,
+ unsigned int flags)
+{
+ u32 reg;
+
+ if (port >= 1)
+ return -EINVAL;
+
+ reg = readl(base);
+ if (flags & MXC_EHCI_DISABLE_OVERCURRENT) {
+ reg |= MX6_USB_CTRL_OVER_CUR_DIS;
+ } else {
+ reg &= ~MX6_USB_CTRL_OVER_CUR_DIS;
+ if (flags & MXC_EHCI_OC_PIN_ACTIVE_LOW)
+ reg &= ~MX6_USB_CTRL_OVER_CUR_ACT_HIGH;
+ else
+ reg |= MX6_USB_CTRL_OVER_CUR_ACT_HIGH;
+ }
+ writel(reg, base);
+
+ reg = readl(base + MX7D_USBNC_USB_CTRL2);
+ reg &= ~MX7D_USB_VBUS_WAKEUP_SOURCE_MASK;
+ writel(reg | MX7D_USB_VBUS_WAKEUP_SOURCE_BVALID,
+ base + MX7D_USBNC_USB_CTRL2);
+
+ return 0;
+}
+
+static __maybe_unused struct imx_usb_misc_data mx7_data = {
+ .init = usbmisc_imx7d_init,
+};
+
#define VF610_OVER_CUR_DIS BIT(7)
static __maybe_unused int vf610_initialize_usb_hw(void __iomem *base, int port,
@@ -498,6 +539,12 @@ static struct platform_device_id imx_usbmisc_ids[] = {
.driver_data = (unsigned long)&mx6_data,
},
#endif
+#ifdef CONFIG_ARCH_IMX7
+ {
+ .name = "imx7d-usb-misc",
+ .driver_data = (unsigned long)&mx7_data,
+ },
+#endif
{
/* sentinel */
},
@@ -546,6 +593,12 @@ static __maybe_unused struct of_device_id imx_usbmisc_dt_ids[] = {
.data = &mx6_data,
},
#endif
+#ifdef CONFIG_ARCH_IMX7
+ {
+ .compatible = "fsl,imx7d-usbmisc",
+ .data = &mx7_data,
+ },
+#endif
#ifdef CONFIG_ARCH_VF610
{
.compatible = "fsl,vf610-usbmisc",