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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright 2019 IBM Corp.
- * Eddie James <eajames@linux.ibm.com>
- */
- #include <common.h>
- #include <clk.h>
- #include <dm.h>
- #include <malloc.h>
- #include <sdhci.h>
- #include <linux/err.h>
- struct aspeed_sdhci_plat {
- struct mmc_config cfg;
- struct mmc mmc;
- };
- static int aspeed_sdhci_probe(struct udevice *dev)
- {
- struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
- struct aspeed_sdhci_plat *plat = dev_get_platdata(dev);
- struct sdhci_host *host = dev_get_priv(dev);
- u32 max_clk;
- struct clk clk;
- int ret;
- ret = clk_get_by_index(dev, 0, &clk);
- if (ret)
- return ret;
- ret = clk_enable(&clk);
- if (ret)
- goto free;
- host->name = dev->name;
- host->ioaddr = dev_read_addr_ptr(dev);
- max_clk = clk_get_rate(&clk);
- if (IS_ERR_VALUE(max_clk)) {
- ret = max_clk;
- goto err;
- }
- host->max_clk = max_clk;
- host->mmc = &plat->mmc;
- host->mmc->dev = dev;
- host->mmc->priv = host;
- upriv->mmc = host->mmc;
- ret = sdhci_setup_cfg(&plat->cfg, host, 0, 0);
- if (ret)
- goto err;
- ret = sdhci_probe(dev);
- if (ret)
- goto err;
- return 0;
- err:
- clk_disable(&clk);
- free:
- clk_free(&clk);
- return ret;
- }
- static int aspeed_sdhci_bind(struct udevice *dev)
- {
- struct aspeed_sdhci_plat *plat = dev_get_platdata(dev);
- return sdhci_bind(dev, &plat->mmc, &plat->cfg);
- }
- static const struct udevice_id aspeed_sdhci_ids[] = {
- { .compatible = "aspeed,ast2400-sdhci" },
- { .compatible = "aspeed,ast2500-sdhci" },
- { .compatible = "aspeed,ast2600-sdhci" },
- { }
- };
- U_BOOT_DRIVER(aspeed_sdhci_drv) = {
- .name = "aspeed_sdhci",
- .id = UCLASS_MMC,
- .of_match = aspeed_sdhci_ids,
- .ops = &sdhci_ops,
- .bind = aspeed_sdhci_bind,
- .probe = aspeed_sdhci_probe,
- .priv_auto_alloc_size = sizeof(struct sdhci_host),
- .platdata_auto_alloc_size = sizeof(struct aspeed_sdhci_plat),
- };
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