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authorShengzhou Liu <Shengzhou.Liu@freescale.com>2012-10-22 13:18:24 +0800
committerMarek Vasut <marex@denx.de>2012-10-22 08:25:12 +0200
commit047cea3655cf34ce1f911c282e82598ded998dd2 (patch)
tree64b4368d01fb17c1e4745977cc73dba0d8fca93a /spl
parent8b8d779dacc149be0607dfc1b399bbdb62e57108 (diff)
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powerpc/usb: fix bug of CPU hang when missing USB PHY clock
when missing USB PHY clock, u-boot will hang during USB initialization when issuing "usb start". We should check USBGP[PHY_CLK_VALID] bit to avoid CPU hanging in this case. Due to controller issue of PHY_CLK_VALID in ULPI mode, we set USB_EN before checking PHY_CLK_VALID, otherwise PHY_CLK_VALID doesn't work. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Acked-by: Marek Vasut <marex@denx.de>
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