Re: [PATCH v2 2/2] spi: cadence-qspi: Add direct mode support

2020-01-26 Thread Jagan Teki
On Mon, Jan 27, 2020 at 10:42 AM Vignesh Raghavendra wrote: > > Hi Jagan, > > On 26/01/20 10:13 pm, Jagan Teki wrote: > > On Fri, Jan 17, 2020 at 9:23 PM Simon Goldschmidt > > wrote: > >> > >> On Fri, Jan 17, 2020 at 2:20 PM Simon Goldschmidt > >> wrote: > >>> > >>> On Fri, Jan 17, 2020 at 2:01

Re: [PATCH v2 2/2] spi: cadence-qspi: Add direct mode support

2020-01-26 Thread Vignesh Raghavendra
Hi Jagan, On 26/01/20 10:13 pm, Jagan Teki wrote: > On Fri, Jan 17, 2020 at 9:23 PM Simon Goldschmidt > wrote: >> >> On Fri, Jan 17, 2020 at 2:20 PM Simon Goldschmidt >> wrote: >>> >>> On Fri, Jan 17, 2020 at 2:01 PM Vignesh Raghavendra wrote: [...] >> void cadence_qspi_apb_enter_xip(void

Re: [PATCH v2 2/2] spi: cadence-qspi: Add direct mode support

2020-01-26 Thread Jagan Teki
On Fri, Jan 17, 2020 at 9:23 PM Simon Goldschmidt wrote: > > On Fri, Jan 17, 2020 at 2:20 PM Simon Goldschmidt > wrote: > > > > On Fri, Jan 17, 2020 at 2:01 PM Vignesh Raghavendra wrote: > > > > > > > > > > > > On 17/01/20 6:21 pm, Simon Goldschmidt wrote: > > > > On Tue, Nov 19, 2019 at 11:12 A

Re: [PATCH v2 2/2] spi: cadence-qspi: Add direct mode support

2020-01-17 Thread Simon Goldschmidt
On Fri, Jan 17, 2020 at 2:20 PM Simon Goldschmidt wrote: > > On Fri, Jan 17, 2020 at 2:01 PM Vignesh Raghavendra wrote: > > > > > > > > On 17/01/20 6:21 pm, Simon Goldschmidt wrote: > > > On Tue, Nov 19, 2019 at 11:12 AM Vignesh Raghavendra > > > wrote: > > >> > > >> Add support for Direct Acce

Re: [PATCH v2 2/2] spi: cadence-qspi: Add direct mode support

2020-01-17 Thread Simon Goldschmidt
On Fri, Jan 17, 2020 at 2:01 PM Vignesh Raghavendra wrote: > > > > On 17/01/20 6:21 pm, Simon Goldschmidt wrote: > > On Tue, Nov 19, 2019 at 11:12 AM Vignesh Raghavendra > > wrote: > >> > >> Add support for Direct Access Controller mode of Cadence QSPI. This > >> allows MMIO access to SPI NOR fl

Re: [PATCH v2 2/2] spi: cadence-qspi: Add direct mode support

2020-01-17 Thread Vignesh Raghavendra
On 17/01/20 6:21 pm, Simon Goldschmidt wrote: > On Tue, Nov 19, 2019 at 11:12 AM Vignesh Raghavendra wrote: >> >> Add support for Direct Access Controller mode of Cadence QSPI. This >> allows MMIO access to SPI NOR flash providing better read performance. >> Direct mode is only exercised if AHB

Re: [PATCH v2 2/2] spi: cadence-qspi: Add direct mode support

2020-01-17 Thread Simon Goldschmidt
On Tue, Nov 19, 2019 at 11:12 AM Vignesh Raghavendra wrote: > > Add support for Direct Access Controller mode of Cadence QSPI. This > allows MMIO access to SPI NOR flash providing better read performance. > Direct mode is only exercised if AHB window size is greater than 8MB. > Support for flash a

[U-Boot] [PATCH v2 2/2] spi: cadence-qspi: Add direct mode support

2019-11-19 Thread Vignesh Raghavendra
Add support for Direct Access Controller mode of Cadence QSPI. This allows MMIO access to SPI NOR flash providing better read performance. Direct mode is only exercised if AHB window size is greater than 8MB. Support for flash address remapping is also not supported at the moment and can be added i