uboot-phytec

// SPDX-License-Identifier: GPL-2.0+

/*

 * (C) Copyright 2015 Linaro

 * peter.griffin <peter.griffin@linaro.org>

 */

​

#include <common.h>

#include <dm.h>

#include <dwmmc.h>

#include <errno.h>

#include <fdtdec.h>

#include <malloc.h>

​

DECLARE_GLOBAL_DATA_PTR;

​

struct hi6220_dwmmc_plat {

    struct mmc_config cfg;

    struct mmc mmc;

};

​

struct hi6220_dwmmc_priv_data {

    struct dwmci_host host;

};

​

struct hisi_mmc_data {

    unsigned int clock;

    bool use_fifo;

};

​

static int hi6220_dwmmc_ofdata_to_platdata(struct udevice *dev)

{

    struct hi6220_dwmmc_priv_data *priv = dev_get_priv(dev);

    struct dwmci_host *host = &priv->host;

​

    host->name = dev->name;

    host->ioaddr = (void *)devfdt_get_addr(dev);

    host->buswidth = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),

                    "bus-width", 4);

​

    /* use non-removable property for differentiating SD card and eMMC */

    if (dev_read_bool(dev, "non-removable"))

        host->dev_index = 0;

    else

        host->dev_index = 1;

​

    host->priv = priv;

​

    return 0;

}

​

static int hi6220_dwmmc_probe(struct udevice *dev)

{

    struct hi6220_dwmmc_plat *plat = dev_get_platdata(dev);

    struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);

    struct hi6220_dwmmc_priv_data *priv = dev_get_priv(dev);

    struct dwmci_host *host = &priv->host;

    struct hisi_mmc_data *mmc_data;

​

    mmc_data = (struct hisi_mmc_data *)dev_get_driver_data(dev);

​

    /* Use default bus speed due to absence of clk driver */

    host->bus_hz = mmc_data->clock;

​

    dwmci_setup_cfg(&plat->cfg, host, host->bus_hz, 400000);

    host->mmc = &plat->mmc;

​

    host->fifo_mode = mmc_data->use_fifo;

    host->mmc->priv = &priv->host;

    upriv->mmc = host->mmc;

    host->mmc->dev = dev;

​

    return dwmci_probe(dev);

}

​

static int hi6220_dwmmc_bind(struct udevice *dev)

{

    struct hi6220_dwmmc_plat *plat = dev_get_platdata(dev);

    int ret;

​

    ret = dwmci_bind(dev, &plat->mmc, &plat->cfg);

    if (ret)

        return ret;

​

    return 0;

}

​

static const struct hisi_mmc_data hi3660_mmc_data = {

    .clock = 3200000,

    .use_fifo = true,

};

​

static const struct hisi_mmc_data hi6220_mmc_data = {