This is next version patch series for - http://u-boot.10912.n7.nabble.com/PATCH-0-5-sf-Add-support-to-access-dual-fl...

"nr_flash" support look likes how many no.of flashes can be connected to a controller from a given chipselect. Usually from every controller we can connect single flash with a single chipselect line and current sf framework support too. but there are some hw logics(ex: xilinx zynq qspi) describes two/dual memories are connected with a single chipselect line from a controller.

This code nothing harm to existing sf with single flash as newly added code is moved onto CONFIG_SF_NR_FLASH config option.

Changes for v2: - rebase to current spi tree - "option" variable on spi_slave so-that controller driver can specify which they use - Unify common code -- Thanks, Jagan.

Jagannadha Sutradharudu Teki (4): sf: ops: Unify read_ops bank configuration sf: Add dual memories support - DUAL_STACKED sf: Add dual memories support - DUAL_PARALLEL sf: Add CONFIG_SF_NR_FLASH

README | 6 +++ doc/SPI/README.nr-flash | 92 ++++++++++++++++++++++++++++++++++++++++++++++ drivers/mtd/spi/sf.c | 4 ++ drivers/mtd/spi/sf_ops.c | 80 +++++++++++++++++++++++++++++++--------- drivers/mtd/spi/sf_probe.c | 21 ++++++++--- include/spi.h | 9 +++++ include/spi_flash.h | 11 ++++++ 7 files changed, 199 insertions(+), 24 deletions(-) create mode 100644 doc/SPI/README.nr-flash