uboot-phytec

// 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>

​

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 = (void *)devfdt_get_addr(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);