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https://github.com/AsahiLinux/u-boot
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caa4daa2ae
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
117 lines
2.7 KiB
C
117 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2015 Linaro
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* peter.griffin <peter.griffin@linaro.org>
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*/
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#include <common.h>
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#include <dm.h>
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#include <dwmmc.h>
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#include <errno.h>
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#include <fdtdec.h>
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#include <malloc.h>
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DECLARE_GLOBAL_DATA_PTR;
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struct hi6220_dwmmc_plat {
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struct mmc_config cfg;
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struct mmc mmc;
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};
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struct hi6220_dwmmc_priv_data {
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struct dwmci_host host;
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};
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struct hisi_mmc_data {
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unsigned int clock;
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bool use_fifo;
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};
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static int hi6220_dwmmc_ofdata_to_platdata(struct udevice *dev)
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{
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struct hi6220_dwmmc_priv_data *priv = dev_get_priv(dev);
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struct dwmci_host *host = &priv->host;
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host->name = dev->name;
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host->ioaddr = dev_read_addr_ptr(dev);
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host->buswidth = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
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"bus-width", 4);
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/* use non-removable property for differentiating SD card and eMMC */
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if (dev_read_bool(dev, "non-removable"))
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host->dev_index = 0;
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else
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host->dev_index = 1;
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host->priv = priv;
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return 0;
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}
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static int hi6220_dwmmc_probe(struct udevice *dev)
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{
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struct hi6220_dwmmc_plat *plat = dev_get_platdata(dev);
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struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
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struct hi6220_dwmmc_priv_data *priv = dev_get_priv(dev);
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struct dwmci_host *host = &priv->host;
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struct hisi_mmc_data *mmc_data;
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mmc_data = (struct hisi_mmc_data *)dev_get_driver_data(dev);
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/* Use default bus speed due to absence of clk driver */
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host->bus_hz = mmc_data->clock;
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dwmci_setup_cfg(&plat->cfg, host, host->bus_hz, 400000);
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host->mmc = &plat->mmc;
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host->fifo_mode = mmc_data->use_fifo;
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host->mmc->priv = &priv->host;
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upriv->mmc = host->mmc;
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host->mmc->dev = dev;
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return dwmci_probe(dev);
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}
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static int hi6220_dwmmc_bind(struct udevice *dev)
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{
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struct hi6220_dwmmc_plat *plat = dev_get_platdata(dev);
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int ret;
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ret = dwmci_bind(dev, &plat->mmc, &plat->cfg);
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if (ret)
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return ret;
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return 0;
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}
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static const struct hisi_mmc_data hi3660_mmc_data = {
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.clock = 3200000,
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.use_fifo = true,
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};
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static const struct hisi_mmc_data hi6220_mmc_data = {
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.clock = 50000000,
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.use_fifo = false,
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};
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static const struct udevice_id hi6220_dwmmc_ids[] = {
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{ .compatible = "hisilicon,hi6220-dw-mshc",
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.data = (ulong)&hi6220_mmc_data },
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{ .compatible = "hisilicon,hi3798cv200-dw-mshc",
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.data = (ulong)&hi6220_mmc_data },
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{ .compatible = "hisilicon,hi3660-dw-mshc",
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.data = (ulong)&hi3660_mmc_data },
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{ }
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};
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U_BOOT_DRIVER(hi6220_dwmmc_drv) = {
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.name = "hi6220_dwmmc",
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.id = UCLASS_MMC,
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.of_match = hi6220_dwmmc_ids,
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.ofdata_to_platdata = hi6220_dwmmc_ofdata_to_platdata,
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.ops = &dm_dwmci_ops,
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.bind = hi6220_dwmmc_bind,
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.probe = hi6220_dwmmc_probe,
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.priv_auto = sizeof(struct hi6220_dwmmc_priv_data),
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.plat_auto = sizeof(struct hi6220_dwmmc_plat),
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};
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