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4 Commits

Author SHA1 Message Date
Damien George
8bd0a51ca9 stm32/spibdev: Convert to use multiple block read/write interface. 
The spiflash driver now supports read/write of multiple blocks at a time.
 2018-03-03 00:13:15 +11:00
Damien George
0210383da5 stm32/spibdev: Add option to configure SPI block dev to use QSPI flash. 
To use QSPI (in software QSPI mode) the configuration needed is:

    #define MICROPY_HW_SPIFLASH_SIZE_BITS (n * 1024 * 1024)
    #define MICROPY_HW_SPIFLASH_CS      (pin_x1)
    #define MICROPY_HW_SPIFLASH_SCK     (pin_x2)
    #define MICROPY_HW_SPIFLASH_IO0     (pin_x3)
    #define MICROPY_HW_SPIFLASH_IO1     (pin_x4)
    #define MICROPY_HW_SPIFLASH_IO2     (pin_x5)
    #define MICROPY_HW_SPIFLASH_IO3     (pin_x6)
 2018-03-02 23:55:45 +11:00
Damien George
a0dfc38641 stm32/spibdev: Update to work with new spiflash driver. 2018-03-02 23:55:40 +11:00
Damien George
fa13e0d35b stm32: Factor out flash and SPI block-device code to separate files. 
Prior to this patch, storage.c was a combination of code that handled
either internal flash or external SPI flash and exposed one of them as a
block device for the local storage.  It was also exposed to the USB MSC.

This patch splits out the flash and SPI code to separate files, which each
provide a general block-device interface (at the C level).  Then storage.c
just picks one of them to use as the local storage medium.  The aim of this
factoring is to allow to add new block devices in the future and allow for
easier configurability.
 2018-02-13 22:21:46 +11:00