Updated the dual_flash documentation as it uses mode_bits from spi drivers to inform the sf framework.
Signed-off-by: Jagannadha Sutradharudu Teki jaganna@xilinx.com Cc: Marek Vasut marex@denx.de --- doc/SPI/README.dual-flash | 5 +++-- doc/SPI/README.sf-features | 3 +++ 2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/doc/SPI/README.dual-flash b/doc/SPI/README.dual-flash index 6c88d65..05b875f 100644 --- a/doc/SPI/README.dual-flash +++ b/doc/SPI/README.dual-flash @@ -9,7 +9,8 @@ to a given controller with single chip select line, but there are some hw logics(ex: xilinx zynq qspi) that describes two/dual memories are connected with a single chip select line from a controller.
-"dual_flash" from include/spi.h describes these types of connection mode +"dual_flash" from include/spi_flash.h describes these types of connection mode +in spi flash side and "mode_bits" options for controller driver.
Possible connections: -------------------- @@ -54,7 +55,7 @@ SF_DUAL_STACKED_FLASH: by default, if U_PAGE is unset lower memory should accessible, once user wants to access upper memory need to set U_PAGE.
-SPI_FLASH_CONN_DUALPARALLEL: +SF_DUAL_PARALLEL_FLASH: - dual spi/qspi flash memories are connected with a single chipselect line and these two memories are operating parallel with separate buses. - xilinx zynq qspi controller has implemented this feature [1] diff --git a/doc/SPI/README.sf-features b/doc/SPI/README.sf-features index d35f56d..4047e95 100644 --- a/doc/SPI/README.sf-features +++ b/doc/SPI/README.sf-features @@ -73,6 +73,9 @@ based on the selected flash features/operations from spi_slave {} and spi_flash_params {} - include/spi_flash.h
@dual_flash: flash can be operated in dual flash [3] +- SF_SINGLE_FLASH: default connection single flash +- SF_DUAL_STACKED_FLASH: dual flash with dual stacked connection +- SF_DUAL_PARALLEL_FLASH: dual flash with dual parallel connection @shift: variable shift operator useful for dual parallel @poll_cmd: find the read_status or flag_status for polling erase/write operations @erase_cmd: discovered erase command