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