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authorFabien Lahoudere <fabien.lahoudere@collabora.co.uk>2016-09-26 13:14:20 +0200
committerPeter Chen <peter.chen@nxp.com>2016-11-14 10:03:40 +0800
commit3be3251db0887f721f9c110e1966900922fc4ff4 (patch)
tree4f2bf05eaa036d9a5003b143c140857021abc473
parentd13631bb15cebe8eba50777cb96e2223e5485c23 (diff)
usb: chipidea: imx: Disable internal 60Mhz clock with ULPI PHY
The internal 60Mhz clock for host2 and host3 are useless in ULPI phy mode, so we disable it when configuring ULPI PHY node for those host. Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.co.uk> Signed-off-by: Peter Chen <peter.chen@nxp.com>
-rw-r--r--drivers/usb/chipidea/usbmisc_imx.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
index 11f51bd..e77a4ed 100644
--- a/drivers/usb/chipidea/usbmisc_imx.c
+++ b/drivers/usb/chipidea/usbmisc_imx.c
@@ -53,6 +53,9 @@
#define MX53_USB_CTRL_1_H3_XCVR_CLK_SEL_ULPI BIT(6)
#define MX53_USB_UH2_CTRL_OFFSET 0x14
#define MX53_USB_UH3_CTRL_OFFSET 0x18
+#define MX53_USB_CLKONOFF_CTRL_OFFSET 0x24
+#define MX53_USB_CLKONOFF_CTRL_H2_INT60CKOFF BIT(21)
+#define MX53_USB_CLKONOFF_CTRL_H3_INT60CKOFF BIT(22)
#define MX53_BM_OVER_CUR_DIS_H1 BIT(5)
#define MX53_BM_OVER_CUR_DIS_OTG BIT(8)
#define MX53_BM_OVER_CUR_DIS_UHx BIT(30)
@@ -239,6 +242,10 @@ static int usbmisc_imx53_init(struct imx_usbmisc_data *data)
val = readl(reg) | MX53_USB_UHx_CTRL_WAKE_UP_EN
| MX53_USB_UHx_CTRL_ULPI_INT_EN;
writel(val, reg);
+ /* Disable internal 60Mhz clock */
+ reg = usbmisc->base + MX53_USB_CLKONOFF_CTRL_OFFSET;
+ val = readl(reg) | MX53_USB_CLKONOFF_CTRL_H2_INT60CKOFF;
+ writel(val, reg);
}
if (data->disable_oc) {
reg = usbmisc->base + MX53_USB_UH2_CTRL_OFFSET;
@@ -260,6 +267,10 @@ static int usbmisc_imx53_init(struct imx_usbmisc_data *data)
val = readl(reg) | MX53_USB_UHx_CTRL_WAKE_UP_EN
| MX53_USB_UHx_CTRL_ULPI_INT_EN;
writel(val, reg);
+ /* Disable internal 60Mhz clock */
+ reg = usbmisc->base + MX53_USB_CLKONOFF_CTRL_OFFSET;
+ val = readl(reg) | MX53_USB_CLKONOFF_CTRL_H3_INT60CKOFF;
+ writel(val, reg);
}
if (data->disable_oc) {
reg = usbmisc->base + MX53_USB_UH3_CTRL_OFFSET;