diff options
| author | Damien George | 2018-09-20 11:29:37 +1000 |
|---|---|---|
| committer | Damien George | 2018-09-20 11:29:37 +1000 |
| commit | 9639e0d26f064595518d44d792d890b5d7f84294 (patch) | |
| tree | cfa813303aba1e836a3130d834756531938fd43f | |
| parent | dc77fdb7d432ce818a60f7a3b290d5eee760f7bc (diff) | |
stm32/sdram: Add support for 32-bit wide data bus and 256MB in MPU cfg.
| -rw-r--r-- | ports/stm32/sdram.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/ports/stm32/sdram.c b/ports/stm32/sdram.c index 83b002dcf..6350b1d95 100644 --- a/ports/stm32/sdram.c +++ b/ports/stm32/sdram.c @@ -69,6 +69,10 @@ bool sdram_init(void) { mp_hal_pin_config_alt_static(MICROPY_HW_FMC_BA1, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_BA1); mp_hal_pin_config_alt_static(MICROPY_HW_FMC_NBL0, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_NBL0); mp_hal_pin_config_alt_static(MICROPY_HW_FMC_NBL1, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_NBL1); + #ifdef MICROPY_HW_FMC_NBL2 + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_NBL2, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_NBL2); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_NBL3, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_NBL3); + #endif mp_hal_pin_config_alt_static(MICROPY_HW_FMC_A0, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_A0); mp_hal_pin_config_alt_static(MICROPY_HW_FMC_A1, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_A1); mp_hal_pin_config_alt_static(MICROPY_HW_FMC_A2, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_A2); @@ -100,6 +104,24 @@ bool sdram_init(void) { mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D13, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D13); mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D14, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D14); mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D15, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D15); + #ifdef MICROPY_HW_FMC_D16 + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D16, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D16); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D17, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D17); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D18, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D18); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D19, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D19); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D20, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D20); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D21, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D21); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D22, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D22); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D23, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D23); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D24, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D24); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D25, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D25); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D26, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D26); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D27, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D27); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D28, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D28); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D29, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D29); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D30, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D30); + mp_hal_pin_config_alt_static(MICROPY_HW_FMC_D31, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_NONE, STATIC_AF_FMC_D31); + #endif /* SDRAM device configuration */ hsdram.Instance = FMC_SDRAM_DEVICE; @@ -225,7 +247,7 @@ static void sdram_init_seq(SDRAM_HandleTypeDef /* Configure the MPU attributes as Write-Through for External SDRAM */ MPU_InitStruct.Enable = MPU_REGION_ENABLE; MPU_InitStruct.BaseAddress = SDRAM_START_ADDRESS; - MPU_InitStruct.Size = MPU_REGION_SIZE_8MB; + MPU_InitStruct.Size = MPU_REGION_SIZE_256MB; MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS; MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE; MPU_InitStruct.IsCacheable = MPU_ACCESS_CACHEABLE; |