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From: Marek Vasut <marex@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v3] powerpc/usb: fix bug of CPU hang when missing USB PHY clock
Date: Mon, 22 Oct 2012 08:28:10 +0200	[thread overview]
Message-ID: <201210220828.10597.marex@denx.de> (raw)
In-Reply-To: <1350883104-31561-1-git-send-email-Shengzhou.Liu@freescale.com>

Dear Shengzhou Liu,

> 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>
[...]

Applied, thanks

Best regards,
Marek Vasut

      reply	other threads:[~2012-10-22  6:28 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-22  5:18 [U-Boot] [PATCH v3] powerpc/usb: fix bug of CPU hang when missing USB PHY clock Shengzhou Liu
2012-10-22  6:28 ` Marek Vasut [this message]

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