Re: [PATCH v4] spi: Add SPI driver for Mikrotik RB4xx series boards

2015-03-31 Thread Jonas Gorski
Hi, On Tue, Mar 31, 2015 at 6:25 PM, Bert Vermeulen wrote: > This driver mediates access between the connected CPLD and other devices > on the bus. > > The m25p80-compatible boot flash and (some models) MMC use regular SPI, > bitbanged as required by the SoC. However the SPI-connected CPLD has >

Re: [PATCH v4] spi: Add SPI driver for Mikrotik RB4xx series boards

2015-03-31 Thread Andy Shevchenko
On Tue, Mar 31, 2015 at 7:25 PM, Bert Vermeulen wrote: > This driver mediates access between the connected CPLD and other devices > on the bus. > > The m25p80-compatible boot flash and (some models) MMC use regular SPI, > bitbanged as required by the SoC. However the SPI-connected CPLD has > a

[PATCH v4] spi: Add SPI driver for Mikrotik RB4xx series boards

2015-03-31 Thread Bert Vermeulen
This driver mediates access between the connected CPLD and other devices on the bus. The m25p80-compatible boot flash and (some models) MMC use regular SPI, bitbanged as required by the SoC. However the SPI-connected CPLD has a "fast write" mode, in which two bits are transferred by SPI clock

Re: [PATCH v4] spi: Add SPI driver for Mikrotik RB4xx series boards

2015-03-31 Thread Andy Shevchenko
On Tue, Mar 31, 2015 at 7:25 PM, Bert Vermeulen b...@biot.com wrote: This driver mediates access between the connected CPLD and other devices on the bus. The m25p80-compatible boot flash and (some models) MMC use regular SPI, bitbanged as required by the SoC. However the SPI-connected CPLD

[PATCH v4] spi: Add SPI driver for Mikrotik RB4xx series boards

2015-03-31 Thread Bert Vermeulen
This driver mediates access between the connected CPLD and other devices on the bus. The m25p80-compatible boot flash and (some models) MMC use regular SPI, bitbanged as required by the SoC. However the SPI-connected CPLD has a fast write mode, in which two bits are transferred by SPI clock

Re: [PATCH v4] spi: Add SPI driver for Mikrotik RB4xx series boards

2015-03-31 Thread Jonas Gorski
Hi, On Tue, Mar 31, 2015 at 6:25 PM, Bert Vermeulen b...@biot.com wrote: This driver mediates access between the connected CPLD and other devices on the bus. The m25p80-compatible boot flash and (some models) MMC use regular SPI, bitbanged as required by the SoC. However the SPI-connected