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- // 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 = dev_read_addr_ptr(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 = {
- .clock = 50000000,
- .use_fifo = false,
- };
- static const struct udevice_id hi6220_dwmmc_ids[] = {
- { .compatible = "hisilicon,hi6220-dw-mshc",
- .data = (ulong)&hi6220_mmc_data },
- { .compatible = "hisilicon,hi3798cv200-dw-mshc",
- .data = (ulong)&hi6220_mmc_data },
- { .compatible = "hisilicon,hi3660-dw-mshc",
- .data = (ulong)&hi3660_mmc_data },
- { }
- };
- U_BOOT_DRIVER(hi6220_dwmmc_drv) = {
- .name = "hi6220_dwmmc",
- .id = UCLASS_MMC,
- .of_match = hi6220_dwmmc_ids,
- .ofdata_to_platdata = hi6220_dwmmc_ofdata_to_platdata,
- .ops = &dm_dwmci_ops,
- .bind = hi6220_dwmmc_bind,
- .probe = hi6220_dwmmc_probe,
- .priv_auto_alloc_size = sizeof(struct hi6220_dwmmc_priv_data),
- .platdata_auto_alloc_size = sizeof(struct hi6220_dwmmc_plat),
- };
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