Support writing to NOR-Flash over OSPI using
the following modes:
* 1-1-1
* 1-1-4
* 1-4-4
Supports 4-Byte opcodes conversion for write opcodes.
Allows users to set what write/program opcode is used
in the DTS (not for OPI mode).
Will use some default PP opcodes based on the mode.
Signed-off-by: Georgij Cernysiov <geo.cgv@gmail.com>
Adds support to read and erase NOR-Flash over OSPI using
the following modes:
* 1-1-2
* 1-2-2
* 1-1-4
* 1-4-4
Supports 4-Byte opcodes conversion and gets address width
from the SFDP:BFP.
Signed-off-by: Georgij Cernysiov <geo.cgv@gmail.com>
Simplifies the driver and Gives a generic function to prepare the Regular
commands for each instruction.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
This is the stm32 octospi driver based on the exisitng quadspi
for stm32 devices and source code from the STM32Cube.
This drivers initialized the peripheral and the NOR memory
in SPI or OctoSPI mode with STR or DTR data Transfer rates.
The NOR-flash can provide the SDFP table directly (if supported)
or through the DeviceTree.
Limitation: no DMA transfer.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
