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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2022 Nuvoton Technology Corp.
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*/
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#include <common.h>
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#include <dm.h>
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#include <sdhci.h>
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#include <clk.h>
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#include <power/regulator.h>
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#define NPCM_SDHC_MIN_FREQ 400000
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struct npcm_sdhci_plat {
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struct mmc_config cfg;
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struct mmc mmc;
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};
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static int npcm_sdhci_probe(struct udevice *dev)
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{
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struct npcm_sdhci_plat *plat = dev_get_plat(dev);
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struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
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struct sdhci_host *host = dev_get_priv(dev);
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struct udevice *vqmmc_supply;
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int vqmmc_uv, ret;
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struct clk clk;
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host->name = dev->name;
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host->ioaddr = dev_read_addr_ptr(dev);
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host->max_clk = dev_read_u32_default(dev, "clock-frequency", 0);
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ret = clk_get_by_index(dev, 0, &clk);
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if (!ret && host->max_clk) {
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ret = clk_set_rate(&clk, host->max_clk);
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if (ret < 0)
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return ret;
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}
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if (CONFIG_IS_ENABLED(DM_REGULATOR)) {
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device_get_supply_regulator(dev, "vqmmc-supply", &vqmmc_supply);
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vqmmc_uv = dev_read_u32_default(dev, "vqmmc-microvolt", 0);
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/* Set IO voltage */
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if (vqmmc_supply && vqmmc_uv)
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regulator_set_value(vqmmc_supply, vqmmc_uv);
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}
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host->index = dev_read_u32_default(dev, "index", 0);
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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->priv = host;
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host->mmc->dev = dev;
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upriv->mmc = host->mmc;
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ret = sdhci_setup_cfg(&plat->cfg, host, 0, NPCM_SDHC_MIN_FREQ);
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if (ret)
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return ret;
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return sdhci_probe(dev);
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}
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static int npcm_sdhci_bind(struct udevice *dev)
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{
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struct npcm_sdhci_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 npcm_mmc_ids[] = {
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{ .compatible = "nuvoton,npcm750-sdhci" },
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{ .compatible = "nuvoton,npcm845-sdhci" },
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{ }
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};
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U_BOOT_DRIVER(npcm_sdhci_drv) = {
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.name = "npcm_sdhci",
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.id = UCLASS_MMC,
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.of_match = npcm_mmc_ids,
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.ops = &sdhci_ops,
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.bind = npcm_sdhci_bind,
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.probe = npcm_sdhci_probe,
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.priv_auto = sizeof(struct sdhci_host),
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.plat_auto = sizeof(struct npcm_sdhci_plat),
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};
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