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mmc: Add support for HI3660 SoC reusing hi6220_dw_mmc driver

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This commit adds MMC driver support for HI3660 SoC reusing hi6220_dw_mmc
driver. Since HI3660 operates at different clock rate and uses fifo
mode now, let's introduce the platform data and utilize it for different
SoCs supported by this driver.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
This commit is contained in:
Manivannan Sadhasivam 2019-08-02 20:40:10 +05:30 committed by Tom Rini
parent c62c7ef779
commit 122537e1f3
1 changed files with 26 additions and 3 deletions
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29
drivers/mmc/hi6220_dw_mmc.c
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@ -22,6 +22,11 @@ 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);
@ -49,13 +54,17 @@ static int hi6220_dwmmc_probe(struct udevice *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 = 50000000;
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;
@ -75,9 +84,23 @@ static int hi6220_dwmmc_bind(struct udevice *dev)
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" },
{ .compatible = "hisilicon,hi3798cv200-dw-mshc" },
{ .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 },
{ }
};