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)
crypto-aes
Damien George 5 years ago
parent a0dfc38641
commit 0210383da5

@ -185,6 +185,7 @@ EXTMOD_SRC_C = $(addprefix extmod/,\
)
DRIVERS_SRC_C = $(addprefix drivers/,\
bus/softqspi.c \
memory/spiflash.c \
dht/dht.c \
)

@ -36,6 +36,10 @@
static uint32_t flash_tick_counter_last_write;
#if defined(MICROPY_HW_SPIFLASH_MOSI)
// External SPI flash uses standard SPI interface
STATIC const mp_machine_soft_spi_obj_t spiflash_spi_bus = {
.base = {&mp_machine_soft_spi_type},
.delay_half = MICROPY_PY_MACHINE_SPI_MIN_DELAY,
@ -53,6 +57,29 @@ STATIC const mp_spiflash_config_t spiflash_config = {
.bus.u_spi.proto = &mp_machine_soft_spi_p,
};
#elif defined(MICROPY_HW_SPIFLASH_IO0)
// External SPI flash uses quad SPI interface
#include "drivers/bus/qspi.h"
STATIC const mp_soft_qspi_obj_t soft_qspi_bus = {
.cs = &MICROPY_HW_SPIFLASH_CS,
.clk = &MICROPY_HW_SPIFLASH_SCK,
.io0 = &MICROPY_HW_SPIFLASH_IO0,
.io1 = &MICROPY_HW_SPIFLASH_IO1,
.io2 = &MICROPY_HW_SPIFLASH_IO2,
.io3 = &MICROPY_HW_SPIFLASH_IO3,
};
STATIC const mp_spiflash_config_t spiflash_config = {
.bus_kind = MP_SPIFLASH_BUS_QSPI,
.bus.u_qspi.data = (void*)&soft_qspi_bus,
.bus.u_qspi.proto = &mp_soft_qspi_proto,
};
#endif
STATIC mp_spiflash_t spiflash;
void spi_bdev_init(void) {

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