mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-30 00:21:06 +00:00
24f5aec364
These functions can be much simpler by squashing lines for immediate
return.
For *_bind() callbacks, they will be a simple wrapper function of an
upper-level bind API.
For mmc_set_{boot_bus_width,part_conf}, they will be a wrapper of
mmc_switch().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/*
|
|
* (C) Copyright 2016 Fuzhou Rockchip Electronics Co., Ltd
|
|
*
|
|
* Rockchip SD Host Controller Interface
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <fdtdec.h>
|
|
#include <libfdt.h>
|
|
#include <malloc.h>
|
|
#include <sdhci.h>
|
|
|
|
/* 400KHz is max freq for card ID etc. Use that as min */
|
|
#define EMMC_MIN_FREQ 400000
|
|
|
|
struct rockchip_sdhc_plat {
|
|
struct mmc_config cfg;
|
|
struct mmc mmc;
|
|
};
|
|
|
|
struct rockchip_sdhc {
|
|
struct sdhci_host host;
|
|
void *base;
|
|
};
|
|
|
|
static int arasan_sdhci_probe(struct udevice *dev)
|
|
{
|
|
struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
|
|
struct rockchip_sdhc_plat *plat = dev_get_platdata(dev);
|
|
struct rockchip_sdhc *prv = dev_get_priv(dev);
|
|
struct sdhci_host *host = &prv->host;
|
|
int ret;
|
|
|
|
host->quirks = SDHCI_QUIRK_WAIT_SEND_CMD;
|
|
|
|
ret = sdhci_setup_cfg(&plat->cfg, host, CONFIG_ROCKCHIP_SDHCI_MAX_FREQ,
|
|
EMMC_MIN_FREQ);
|
|
|
|
host->mmc = &plat->mmc;
|
|
if (ret)
|
|
return ret;
|
|
host->mmc->priv = &prv->host;
|
|
host->mmc->dev = dev;
|
|
upriv->mmc = host->mmc;
|
|
|
|
return sdhci_probe(dev);
|
|
}
|
|
|
|
static int arasan_sdhci_ofdata_to_platdata(struct udevice *dev)
|
|
{
|
|
struct sdhci_host *host = dev_get_priv(dev);
|
|
|
|
host->name = dev->name;
|
|
host->ioaddr = dev_get_addr_ptr(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rockchip_sdhci_bind(struct udevice *dev)
|
|
{
|
|
struct rockchip_sdhc_plat *plat = dev_get_platdata(dev);
|
|
|
|
return sdhci_bind(dev, &plat->mmc, &plat->cfg);
|
|
}
|
|
|
|
static const struct udevice_id arasan_sdhci_ids[] = {
|
|
{ .compatible = "arasan,sdhci-5.1" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(arasan_sdhci_drv) = {
|
|
.name = "arasan_sdhci",
|
|
.id = UCLASS_MMC,
|
|
.of_match = arasan_sdhci_ids,
|
|
.ofdata_to_platdata = arasan_sdhci_ofdata_to_platdata,
|
|
.ops = &sdhci_ops,
|
|
.bind = rockchip_sdhci_bind,
|
|
.probe = arasan_sdhci_probe,
|
|
.priv_auto_alloc_size = sizeof(struct rockchip_sdhc),
|
|
.platdata_auto_alloc_size = sizeof(struct rockchip_sdhc_plat),
|
|
};
|