diff options
Diffstat (limited to 'rtemsbsd/sys/dev/mmc/st-sdmmc-config.c')
-rw-r--r-- | rtemsbsd/sys/dev/mmc/st-sdmmc-config.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/rtemsbsd/sys/dev/mmc/st-sdmmc-config.c b/rtemsbsd/sys/dev/mmc/st-sdmmc-config.c new file mode 100644 index 00000000..723a169b --- /dev/null +++ b/rtemsbsd/sys/dev/mmc/st-sdmmc-config.c @@ -0,0 +1,46 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + +/* + * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de) + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <bsp/st-sdmmc-config.h> +#include <dev/mmc/mmcreg.h> + +void +st_sdmmc_get_config(uintptr_t sdmmc_base, struct st_sdmmc_config *cfg) +{ + switch (sdmmc_base) { + case SDMMC1_BASE: + cfg->data_lines = 4; + cfg->dirpol = true; + /* + * FIXME: Also the evaluation board could switch to 1.8V, the + * control for the level converter isn't implemented in the + * driver yet. So only signal 2.9V. + */ + cfg->ocr_voltage = MMC_OCR_280_290 | MMC_OCR_290_300; + break; + } +} |