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Re: [PATCH] Documentation: Note QDF2400 SoC Erratum 44

From Will Deacon <will.deacon@arm.com>
Newsgroups linux.kernel
Subject Re: [PATCH] Documentation: Note QDF2400 SoC Erratum 44
Date 2017-02-17 19:30 +0100
Message-ID <tbVs5-7Mv-1@gated-at.bofh.it> (permalink)
References <tbfMe-5no-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Wed, Feb 15, 2017 at 04:54:07PM -0500, Christopher Covington wrote:
> The Qualcomm Datacenter Technologies QDF2400 family of SoCs contains a
> custom (non-PrimeCell) implementation of the SBSA UART. Occasionally the
> BUSY bit in the Flag Register gets stuck as 1, erratum 44 for both 2432v1
> and 2400v1 SoCs.Checking that the Transmit FIFO Empty (TXFE) bit is 0,
> instead of checking that the BUSY bit is 1, works around the issue. Note
> this in the customary location. To minimize conflicts, this documentation
> update is separate from the code changes, "tty: pl011: Work around QDF2400
> E44 stuck BUSY bit".
> 
> Signed-off-by: Christopher Covington <cov@codeaurora.org>
> Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
> Acked-by: Mark Rutland <mark.rutland@arm.com>
> Acked-by: Timur Tabi <timur@codeaurora.org>
> ---
> Documentation to go with https://patchwork.kernel.org/patch/9575103/

Please poke me when that goes into -next. I don't want to merge the doc
until the patch is queued too.

Thanks,

Will

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[PATCH] Documentation: Note QDF2400 SoC Erratum 44 Christopher Covington <cov@codeaurora.org> - 2017-02-15 23:00 +0100
  Re: [PATCH] Documentation: Note QDF2400 SoC Erratum 44 Will Deacon <will.deacon@arm.com> - 2017-02-17 19:30 +0100

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