diff options
| author | iabdalkader <i.abdalkader@gmail.com> | 2024-11-29 16:56:20 +0100 |
|---|---|---|
| committer | Damien George <damien@micropython.org> | 2024-12-10 10:40:06 +1100 |
| commit | b5e80fafb2d5ef69fd80dbc6d7e839ffaa5a0f98 (patch) | |
| tree | 856da4ba87254574864f5a7253f90374863f8200 /drivers | |
| parent | d5d366beef8d0331ee533b28d2e3024e34123ef1 (diff) | |
drivers/memory/spiflash: Add a config option to soft-reset SPI flash.
Add a compile-time config option to soft-reset SPI flash on init. This
puts the flash in a known state on reset. Note this option is
disabled by default.
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/memory/spiflash.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/memory/spiflash.c b/drivers/memory/spiflash.c index e66153636..773334e16 100644 --- a/drivers/memory/spiflash.c +++ b/drivers/memory/spiflash.c @@ -44,6 +44,8 @@ #define CMD_RD_DEVID (0x9f) #define CMD_CHIP_ERASE (0xc7) #define CMD_C4READ (0xeb) +#define CMD_RSTEN (0x66) +#define CMD_RESET (0x99) // 32 bit addressing commands #define CMD_WRITE_32 (0x12) @@ -180,6 +182,14 @@ void mp_spiflash_init(mp_spiflash_t *self) { // Ensure SPI flash is out of sleep mode mp_spiflash_deepsleep_internal(self, 0); + // Software reset. + #if MICROPY_HW_SPIFLASH_SOFT_RESET + mp_spiflash_write_cmd(self, CMD_RSTEN); + mp_spiflash_write_cmd(self, CMD_RESET); + mp_spiflash_wait_wip0(self); + mp_hal_delay_ms(1); + #endif + #if defined(CHECK_DEVID) // Validate device id uint32_t devid; |