diff options
| author | Fabien Lahoudere <fabien.lahoudere@collabora.co.uk> | 2016-09-26 13:14:20 +0200 |
|---|---|---|
| committer | Peter Chen <peter.chen@nxp.com> | 2016-09-27 12:50:08 +0800 |
| commit | fa5080534830adad1dec942796b5ef2daa4aedf2 (patch) | |
| tree | 61bfbd45fd929c68ff24d2df5605a4102e9682f8 | |
| parent | 8d5cdd9376c3a0750543ac1c57fe56d4b0416547 (diff) | |
| download | usb-peter-usb-dev.tar.gz | |
usb: chipidea: imx: Disable internal 60Mhz clock with ULPI PHYpeter-usb-dev
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.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index 11f51bde44e5f6..e77a4ed4f021da 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; |