diff options
| author | Shengzhou Liu <Shengzhou.Liu@freescale.com> | 2012-10-22 13:18:24 +0800 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2012-10-22 08:25:12 +0200 |
| commit | 047cea3655cf34ce1f911c282e82598ded998dd2 (patch) | |
| tree | 64b4368d01fb17c1e4745977cc73dba0d8fca93a /doc/README.imx5 | |
| parent | 8b8d779dacc149be0607dfc1b399bbdb62e57108 (diff) | |
| download | u-boot-imx-047cea3655cf34ce1f911c282e82598ded998dd2.zip u-boot-imx-047cea3655cf34ce1f911c282e82598ded998dd2.tar.gz u-boot-imx-047cea3655cf34ce1f911c282e82598ded998dd2.tar.bz2 | |
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>
Diffstat (limited to 'doc/README.imx5')
0 files changed, 0 insertions, 0 deletions