Re: [U-Boot] [PATCH v2] spi: kirkwood_spi: implement workaround for FE-9144572

2018-01-22 Thread Jagan Teki
On Tue, Oct 17, 2017 at 4:15 AM, Chris Packham wrote: > On Tue, Oct 17, 2017 at 10:46 AM, Jagan Teki wrote: >> On Tue, Oct 17, 2017 at 3:07 AM, Chris Packham >> wrote: >>> Erratum NO. FE-9144572: The device SPI

Re: [U-Boot] [PATCH v2] spi: kirkwood_spi: implement workaround for FE-9144572

2017-10-16 Thread Chris Packham
On Tue, Oct 17, 2017 at 10:46 AM, Jagan Teki wrote: > On Tue, Oct 17, 2017 at 3:07 AM, Chris Packham > wrote: >> Erratum NO. FE-9144572: The device SPI interface supports frequencies of >> up to 50 MHz. However, due to this erratum, when the

Re: [U-Boot] [PATCH v2] spi: kirkwood_spi: implement workaround for FE-9144572

2017-10-16 Thread Jagan Teki
On Tue, Oct 17, 2017 at 3:07 AM, Chris Packham wrote: > Erratum NO. FE-9144572: The device SPI interface supports frequencies of > up to 50 MHz. However, due to this erratum, when the device core clock > is 250 MHz and the SPI interfaces is configured for 50MHz SPI clock

[U-Boot] [PATCH v2] spi: kirkwood_spi: implement workaround for FE-9144572

2017-10-16 Thread Chris Packham
Erratum NO. FE-9144572: The device SPI interface supports frequencies of up to 50 MHz. However, due to this erratum, when the device core clock is 250 MHz and the SPI interfaces is configured for 50MHz SPI clock and CPOL=CPHA=1 there might occur data corruption on reads from the SPI device.