diff options
Diffstat (limited to 'bsp/lpc54608-LPCXpresso/drivers/drv_sd.c')
| -rw-r--r-- | bsp/lpc54608-LPCXpresso/drivers/drv_sd.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/bsp/lpc54608-LPCXpresso/drivers/drv_sd.c b/bsp/lpc54608-LPCXpresso/drivers/drv_sd.c index e1239b7899..f5efc2a9d7 100644 --- a/bsp/lpc54608-LPCXpresso/drivers/drv_sd.c +++ b/bsp/lpc54608-LPCXpresso/drivers/drv_sd.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2006-2018, RT-Thread Development Team + * Copyright (c) 2006-2021, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * @@ -394,22 +394,22 @@ rt_err_t mci_hw_init(const char *device_name) rt_kprintf("SD_Init failed!\n"); return -RT_ERROR; } - - /* - follow the page: https://community.nxp.com/thread/454769 - - The issue concerns sdmmc library bug (I finally solved) in SD_Init() in the file sdmmc/src/fsl_sd.c:SD_SelectBusTiming() - calls SD_SwitchFunction() which sets block size to 64bytes (512bits).Therefore SD_SetBlockSize(card, FSL_SDMMC_DEFAULT_BLOCK_SIZE) - should be called again before SD_Init() exits. - */ - - if (kStatus_Success != SDMMC_SetBlockSize(_mci_device->card.host.base, _mci_device->card.host.transfer, FSL_SDMMC_DEFAULT_BLOCK_SIZE)) - { + + /* + follow the page: https://community.nxp.com/thread/454769 + + The issue concerns sdmmc library bug (I finally solved) in SD_Init() in the file sdmmc/src/fsl_sd.c:SD_SelectBusTiming() + calls SD_SwitchFunction() which sets block size to 64bytes (512bits).Therefore SD_SetBlockSize(card, FSL_SDMMC_DEFAULT_BLOCK_SIZE) + should be called again before SD_Init() exits. + */ + + if (kStatus_Success != SDMMC_SetBlockSize(_mci_device->card.host.base, _mci_device->card.host.transfer, FSL_SDMMC_DEFAULT_BLOCK_SIZE)) + { SD_Deinit(&_mci_device->card); memset(&_mci_device->card, 0U, sizeof(_mci_device->card)); rt_kprintf("SD_Init failed!\n"); - return -RT_ERROR; - } + return -RT_ERROR; + } /* initialize mutex lock */ rt_mutex_init(&_mci_device->lock, device_name, RT_IPC_FLAG_FIFO); |