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| author | Phil Howard <github@gadgetoid.com> | 2025-06-17 14:55:25 +0100 |
|---|---|---|
| committer | Phil Howard <github@gadgetoid.com> | 2025-06-17 15:17:12 +0100 |
| commit | dc8daad3c90d48efb50f5f0469346fae8402540d (patch) | |
| tree | 335e8d1d57501d318e7afa6f7384681c84fbf099 | |
| parent | b725c26b4e351b71b8f72ad8e55bbbd5ccce4602 (diff) | |
rp2/rp2_flash: Add default MICROPY_HW_FLASH_MAX_FREQ.
Set a default MICROPY_HW_FLASH_MAX_FREQ if PICO_FLASH_SPI_CLKDIV
is unset.
Use a divider of 4, which is the default in boot2_generic_03h.S.
Signed-off-by: Phil Howard <github@gadgetoid.com>
| -rw-r--r-- | ports/rp2/rp2_flash.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/ports/rp2/rp2_flash.c b/ports/rp2/rp2_flash.c index 8b467fc6c..d6b9e1365 100644 --- a/ports/rp2/rp2_flash.c +++ b/ports/rp2/rp2_flash.c @@ -54,7 +54,12 @@ static_assert(MICROPY_HW_FLASH_STORAGE_BYTES % 4096 == 0, "Flash storage size mu // On RP2040 if PICO_USE_FASTEST_SUPPORTED_CLOCK is set then SYS_CLK_HZ can be // 200MHz, potentially putting timings derived from PICO_FLASH_SPI_CLKDIV // out of range. +#ifdef PICO_FLASH_SPI_CLKDIV #define MICROPY_HW_FLASH_MAX_FREQ (SYS_CLK_HZ / PICO_FLASH_SPI_CLKDIV) +#else +// A default PICO_FLASH_SPI_CLKDIV of 4 is set in boot2_generic_03h.S +#define MICROPY_HW_FLASH_MAX_FREQ (SYS_CLK_HZ / 4) +#endif #endif #ifndef MICROPY_HW_FLASH_STORAGE_BASE |