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https://github.com/AsahiLinux/u-boot
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41575d8e4c
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. 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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.platdata_auto = sizeof(struct hi6220_dwmmc_plat),
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};
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