diff options
Diffstat (limited to 'arch/arm/plat-mxs/usb_common.c')
| -rw-r--r-- | arch/arm/plat-mxs/usb_common.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/arch/arm/plat-mxs/usb_common.c b/arch/arm/plat-mxs/usb_common.c index 5d8d0b6d9285..23134489472e 100644 --- a/arch/arm/plat-mxs/usb_common.c +++ b/arch/arm/plat-mxs/usb_common.c @@ -264,13 +264,16 @@ int usbotg_init(struct platform_device *pdev) pdata->xcvr_type = xops->xcvr_type; pdata->pdev = pdev; - otg_used = 0; if (!otg_used) { pr_debug("%s: grab pins\n", __func__); if (xops->init) xops->init(xops); usb_phy_enable(pdata); } + /* Enable internal Phy clock */ + tmp = __raw_readl(pdata->regs + UOG_PORTSC1); + tmp &= ~PORTSC_PHCD; + __raw_writel(tmp, pdata->regs + UOG_PORTSC1); if (pdata->operating_mode == FSL_USB2_DR_HOST) { /* enable FS/LS device */ @@ -288,11 +291,22 @@ EXPORT_SYMBOL(usbotg_init); void usbotg_uninit(struct fsl_usb2_platform_data *pdata) { + int tmp; + struct clk *usb_clk; pr_debug("%s\n", __func__); if (pdata->xcvr_ops && pdata->xcvr_ops->uninit) pdata->xcvr_ops->uninit(pdata->xcvr_ops); + /* Disable internal Phy clock */ + tmp = __raw_readl(pdata->regs + UOG_PORTSC1); + tmp |= PORTSC_PHCD; + __raw_writel(tmp, pdata->regs + UOG_PORTSC1); + + usb_clk = clk_get(NULL, "usb_clk0"); + clk_disable(usb_clk); + clk_put(usb_clk); + pdata->regs = NULL; otg_used--; } @@ -331,11 +345,16 @@ EXPORT_SYMBOL(fsl_usb_host_init); void fsl_usb_host_uninit(struct fsl_usb2_platform_data *pdata) { + struct clk *usb_clk; pr_debug("%s\n", __func__); if (pdata->xcvr_ops && pdata->xcvr_ops->uninit) pdata->xcvr_ops->uninit(pdata->xcvr_ops); + usb_clk = clk_get(NULL, "usb_clk1"); + clk_disable(usb_clk); + clk_put(usb_clk); + pdata->regs = NULL; } EXPORT_SYMBOL(fsl_usb_host_uninit); |