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usb-imx28: fix enable 

we need to power on the PLL when enabling the USB clock.

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Eric Bénard 2013-09-10 19:57:54 +02:00 committed by Sascha Hauer
parent bf04eedf69
commit f0b68f0008
1 changed files with 3 additions and 2 deletions
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5
arch/arm/mach-mxs/usb-imx28.c
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@ -46,6 +46,7 @@
#define CLK_PLL0CTRL0 (IMX_CCM_BASE + 0x0)
#define CLK_PLL1CTRL0 (IMX_CCM_BASE + 0x20)
#define PLLCTRL0_EN_USB_CLKS (1 << 18)
#define PLLCTRL0_POWER (1 << 17)
#define DIGCTRL_CTRL (IMX_DIGCTL_BASE + 0x0)
#define DIGCTL_CTRL_USB0_CLKGATE (1 << 2)
@ -77,7 +78,7 @@ int imx28_usb_phy0_enable(void)
imx28_usb_phy_reset((void *)IMX_USBPHY0_BASE);
/* Turn on the USB clocks */
writel(PLLCTRL0_EN_USB_CLKS, CLK_PLL0CTRL0 + SET);
writel(PLLCTRL0_EN_USB_CLKS | PLLCTRL0_POWER, CLK_PLL0CTRL0 + SET);
writel(DIGCTL_CTRL_USB0_CLKGATE, DIGCTRL_CTRL + CLR);
@ -91,7 +92,7 @@ int imx28_usb_phy1_enable(void)
imx28_usb_phy_reset((void *)IMX_USBPHY1_BASE);
/* Turn on the USB clocks */
writel(PLLCTRL0_EN_USB_CLKS, CLK_PLL1CTRL0 + SET);
writel(PLLCTRL0_EN_USB_CLKS | PLLCTRL0_POWER, CLK_PLL1CTRL0 + SET);
writel(DIGCTL_CTRL_USB1_CLKGATE, DIGCTRL_CTRL + CLR);