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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Socionext F_SDH30 eMMC driver
- * Copyright 2021 Linaro Ltd.
- * Copyright 2021 Socionext, Inc.
- */
- #include <common.h>
- #include <clk.h>
- #include <dm.h>
- #include <malloc.h>
- #include <sdhci.h>
- struct f_sdh30_plat {
- struct mmc_config cfg;
- struct mmc mmc;
- };
- DECLARE_GLOBAL_DATA_PTR;
- static int f_sdh30_sdhci_probe(struct udevice *dev)
- {
- struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
- struct f_sdh30_plat *plat = dev_get_plat(dev);
- struct sdhci_host *host = dev_get_priv(dev);
- int ret;
- ret = mmc_of_parse(dev, &plat->cfg);
- if (ret)
- return ret;
- host->mmc = &plat->mmc;
- host->mmc->dev = dev;
- host->mmc->priv = host;
- ret = sdhci_setup_cfg(&plat->cfg, host, 200000000, 400000);
- if (ret)
- return ret;
- upriv->mmc = host->mmc;
- mmc_set_clock(host->mmc, host->mmc->cfg->f_min, MMC_CLK_ENABLE);
- return sdhci_probe(dev);
- }
- static int f_sdh30_of_to_plat(struct udevice *dev)
- {
- struct sdhci_host *host = dev_get_priv(dev);
- host->name = strdup(dev->name);
- host->ioaddr = dev_read_addr_ptr(dev);
- host->bus_width = dev_read_u32_default(dev, "bus-width", 4);
- host->index = dev_read_u32_default(dev, "index", 0);
- return 0;
- }
- static int f_sdh30_bind(struct udevice *dev)
- {
- struct f_sdh30_plat *plat = dev_get_plat(dev);
- return sdhci_bind(dev, &plat->mmc, &plat->cfg);
- }
- static const struct udevice_id f_sdh30_mmc_ids[] = {
- { .compatible = "fujitsu,mb86s70-sdhci-3.0" },
- { }
- };
- U_BOOT_DRIVER(f_sdh30_drv) = {
- .name = "f_sdh30_sdhci",
- .id = UCLASS_MMC,
- .of_match = f_sdh30_mmc_ids,
- .of_to_plat = f_sdh30_of_to_plat,
- .ops = &sdhci_ops,
- .bind = f_sdh30_bind,
- .probe = f_sdh30_sdhci_probe,
- .priv_auto = sizeof(struct sdhci_host),
- .plat_auto = sizeof(struct f_sdh30_plat),
- };
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