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stmhal/sdcard: Allow a board to customise the SDIO pins.

This commit is contained in:
Benjamin Weps 2017-06-15 12:48:21 +02:00 committed by Damien George
parent fbd252b77c
commit 3e82bedf46
1 changed files with 18 additions and 6 deletions
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24
stmhal/sdcard.c
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@ -96,6 +96,18 @@
#endif
// If no custom SDIO pins defined, use the default ones
#ifndef MICROPY_HW_SDMMC_CK
#define MICROPY_HW_SDMMC_D0 (pin_C8)
#define MICROPY_HW_SDMMC_D1 (pin_C9)
#define MICROPY_HW_SDMMC_D2 (pin_C10)
#define MICROPY_HW_SDMMC_D3 (pin_C11)
#define MICROPY_HW_SDMMC_CK (pin_C12)
#define MICROPY_HW_SDMMC_CMD (pin_D2)
#endif
// TODO: Since SDIO is fundamentally half-duplex, we really only need to
// tie up one DMA channel. However, the HAL DMA API doesn't
// seem to provide a convenient way to change the direction. I believe that
@ -128,12 +140,12 @@ void sdcard_init(void) {
mp_hal_pin_config_alt(&MICROPY_HW_SDMMC2_D3, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, AF_FN_SDMMC, 2);
#else
// Default SDIO/SDMMC1 config
mp_hal_pin_config(&pin_C8, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, GPIO_AF12_SDIO);
mp_hal_pin_config(&pin_C9, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, GPIO_AF12_SDIO);
mp_hal_pin_config(&pin_C10, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, GPIO_AF12_SDIO);
mp_hal_pin_config(&pin_C11, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, GPIO_AF12_SDIO);
mp_hal_pin_config(&pin_C12, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, GPIO_AF12_SDIO);
mp_hal_pin_config(&pin_D2, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, GPIO_AF12_SDIO);
mp_hal_pin_config(&MICROPY_HW_SDMMC_D0, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, GPIO_AF12_SDIO);
mp_hal_pin_config(&MICROPY_HW_SDMMC_D1, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, GPIO_AF12_SDIO);
mp_hal_pin_config(&MICROPY_HW_SDMMC_D2, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, GPIO_AF12_SDIO);
mp_hal_pin_config(&MICROPY_HW_SDMMC_D3, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, GPIO_AF12_SDIO);
mp_hal_pin_config(&MICROPY_HW_SDMMC_CK, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, GPIO_AF12_SDIO);
mp_hal_pin_config(&MICROPY_HW_SDMMC_CMD, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, GPIO_AF12_SDIO);
#endif
// configure the SD card detect pin