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drivers/memory/spiflash: Add a config option to soft-reset SPI flash.

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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>
This commit is contained in:
iabdalkader
2024-11-29 16:56:20 +01:00
committed by Damien George
parent d5d366beef
commit b5e80fafb2
1 changed files with 10 additions and 0 deletions
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10
drivers/memory/spiflash.c
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@@ -44,6 +44,8 @@
#define CMD_RD_DEVID (0x9f) #define CMD_RD_DEVID (0x9f)
#define CMD_CHIP_ERASE (0xc7) #define CMD_CHIP_ERASE (0xc7)
#define CMD_C4READ (0xeb) #define CMD_C4READ (0xeb)
#define CMD_RSTEN (0x66)
#define CMD_RESET (0x99)
// 32 bit addressing commands // 32 bit addressing commands
#define CMD_WRITE_32 (0x12) #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 // Ensure SPI flash is out of sleep mode
mp_spiflash_deepsleep_internal(self, 0); 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) #if defined(CHECK_DEVID)
// Validate device id // Validate device id
uint32_t devid; uint32_t devid;