u-boot-brain/drivers/mmc/aspeed_sdhci.c
Simon Glass caa4daa2ae dm: treewide: Rename 'platdata' variables to just 'plat'
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>
2020-12-13 16:51:08 -07:00

92 lines
1.7 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2019 IBM Corp.
* Eddie James <eajames@linux.ibm.com>
*/
#include <common.h>
#include <clk.h>
#include <dm.h>
#include <malloc.h>
#include <sdhci.h>
#include <linux/err.h>
struct aspeed_sdhci_plat {
struct mmc_config cfg;
struct mmc mmc;
};
static int aspeed_sdhci_probe(struct udevice *dev)
{
struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
struct aspeed_sdhci_plat *plat = dev_get_platdata(dev);
struct sdhci_host *host = dev_get_priv(dev);
u32 max_clk;
struct clk clk;
int ret;
ret = clk_get_by_index(dev, 0, &clk);
if (ret)
return ret;
ret = clk_enable(&clk);
if (ret)
goto free;
host->name = dev->name;
host->ioaddr = dev_read_addr_ptr(dev);
max_clk = clk_get_rate(&clk);
if (IS_ERR_VALUE(max_clk)) {
ret = max_clk;
goto err;
}
host->max_clk = max_clk;
host->mmc = &plat->mmc;
host->mmc->dev = dev;
host->mmc->priv = host;
upriv->mmc = host->mmc;
ret = sdhci_setup_cfg(&plat->cfg, host, 0, 0);
if (ret)
goto err;
ret = sdhci_probe(dev);
if (ret)
goto err;
return 0;
err:
clk_disable(&clk);
free:
clk_free(&clk);
return ret;
}
static int aspeed_sdhci_bind(struct udevice *dev)
{
struct aspeed_sdhci_plat *plat = dev_get_platdata(dev);
return sdhci_bind(dev, &plat->mmc, &plat->cfg);
}
static const struct udevice_id aspeed_sdhci_ids[] = {
{ .compatible = "aspeed,ast2400-sdhci" },
{ .compatible = "aspeed,ast2500-sdhci" },
{ .compatible = "aspeed,ast2600-sdhci" },
{ }
};
U_BOOT_DRIVER(aspeed_sdhci_drv) = {
.name = "aspeed_sdhci",
.id = UCLASS_MMC,
.of_match = aspeed_sdhci_ids,
.ops = &sdhci_ops,
.bind = aspeed_sdhci_bind,
.probe = aspeed_sdhci_probe,
.priv_auto = sizeof(struct sdhci_host),
.plat_auto = sizeof(struct aspeed_sdhci_plat),
};