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80 lines
1.9 KiB
80 lines
1.9 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Copyright (c) 2017 Intel Corporation |
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*/ |
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#include <common.h> |
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#include <dm.h> |
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#include <dm/device.h> |
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#include <linux/io.h> |
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#include <linux/sizes.h> |
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#include <malloc.h> |
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#include <mmc.h> |
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#include <sdhci.h> |
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#define SDHCI_TANGIER_FMAX 200000000 |
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#define SDHCI_TANGIER_FMIN 400000 |
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struct sdhci_tangier_plat { |
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struct mmc_config cfg; |
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struct mmc mmc; |
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void __iomem *ioaddr; |
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}; |
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static int sdhci_tangier_bind(struct udevice *dev) |
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{ |
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struct sdhci_tangier_plat *plat = dev_get_platdata(dev); |
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return sdhci_bind(dev, &plat->mmc, &plat->cfg); |
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} |
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static int sdhci_tangier_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 sdhci_tangier_plat *plat = dev_get_platdata(dev); |
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struct sdhci_host *host = dev_get_priv(dev); |
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fdt_addr_t base; |
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int ret; |
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base = devfdt_get_addr(dev); |
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if (base == FDT_ADDR_T_NONE) |
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return -EINVAL; |
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plat->ioaddr = devm_ioremap(dev, base, SZ_1K); |
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if (!plat->ioaddr) |
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return -ENOMEM; |
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host->name = dev->name; |
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host->ioaddr = plat->ioaddr; |
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host->quirks = SDHCI_QUIRK_NO_HISPD_BIT | SDHCI_QUIRK_BROKEN_VOLTAGE | |
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SDHCI_QUIRK_32BIT_DMA_ADDR | SDHCI_QUIRK_WAIT_SEND_CMD; |
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/* MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195 */ |
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host->voltages = MMC_VDD_165_195; |
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ret = sdhci_setup_cfg(&plat->cfg, host, SDHCI_TANGIER_FMAX, |
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SDHCI_TANGIER_FMIN); |
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if (ret) |
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return ret; |
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upriv->mmc = &plat->mmc; |
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host->mmc = &plat->mmc; |
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host->mmc->priv = host; |
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return sdhci_probe(dev); |
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} |
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static const struct udevice_id sdhci_tangier_match[] = { |
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{ .compatible = "intel,sdhci-tangier" }, |
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{ /* sentinel */ } |
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}; |
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U_BOOT_DRIVER(sdhci_tangier) = { |
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.name = "sdhci-tangier", |
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.id = UCLASS_MMC, |
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.of_match = sdhci_tangier_match, |
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.bind = sdhci_tangier_bind, |
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.probe = sdhci_tangier_probe, |
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.ops = &sdhci_ops, |
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.priv_auto_alloc_size = sizeof(struct sdhci_host), |
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.platdata_auto_alloc_size = sizeof(struct sdhci_tangier_plat), |
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};
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