Re: [PATCH 2/2] tty: pl011: Work around QDF2400 E44 for earlycon

2017-02-14 Thread Christopher Covington
On 02/07/2017 11:31 PM, Shanker Donthineni wrote: > Hi Cov, > > The same PL011 driver will be used in virtutal machine, make sure > your changes have no side effects in VM. Fundamentally, this is the same workaround as has been tested in the qserver downstream kernel for over a year. Cheers, Cov

Re: [PATCH 2/2] tty: pl011: Work around QDF2400 E44 for earlycon

2017-02-07 Thread Shanker Donthineni
Hi Cov, The same PL011 driver will be used in virtutal machine, make sure your changes have no side effects in VM. On 02/07/2017 10:07 PM, Timur Tabi wrote: Christopher Covington wrote: The previous change worked around QDF2432v1 and QDF2400v1 SoC erratum 44 for the full-fledged console, w

Re: [PATCH 2/2] tty: pl011: Work around QDF2400 E44 for earlycon

2017-02-07 Thread Timur Tabi
Christopher Covington wrote: The previous change worked around QDF2432v1 and QDF2400v1 SoC erratum 44 for the full-fledged console, when UART AMBA Port (UAP) data is available. Additionally provide a workaround the earlycon case, again checking TXFE == 0 instead of BUSY == 1. As earlycon is opera

[PATCH 2/2] tty: pl011: Work around QDF2400 E44 for earlycon

2017-02-07 Thread Christopher Covington
The previous change worked around QDF2432v1 and QDF2400v1 SoC erratum 44 for the full-fledged console, when UART AMBA Port (UAP) data is available. Additionally provide a workaround the earlycon case, again checking TXFE == 0 instead of BUSY == 1. As earlycon is operating before UAP data is availab