mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-16 08:13:17 +00:00
8ef761ed4c
Implement the functions in mmc_legacy.c for driver-model block devices, so that MMC can use driver model for these. This allows CONFIG_BLK to be enabled with DM_MMC. Signed-off-by: Simon Glass <sjg@chromium.org>
140 lines
2.4 KiB
C
140 lines
2.4 KiB
C
/*
|
|
* Copyright (C) 2015 Google, Inc
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <mmc.h>
|
|
#include <dm.h>
|
|
#include <dm/lists.h>
|
|
#include <dm/root.h>
|
|
|
|
struct mmc *mmc_get_mmc_dev(struct udevice *dev)
|
|
{
|
|
struct mmc_uclass_priv *upriv;
|
|
|
|
if (!device_active(dev))
|
|
return NULL;
|
|
upriv = dev_get_uclass_priv(dev);
|
|
return upriv->mmc;
|
|
}
|
|
|
|
#ifdef CONFIG_BLK
|
|
struct mmc *find_mmc_device(int dev_num)
|
|
{
|
|
struct udevice *dev, *mmc_dev;
|
|
int ret;
|
|
|
|
ret = blk_get_device(IF_TYPE_MMC, dev_num, &dev);
|
|
|
|
if (ret) {
|
|
#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
|
|
printf("MMC Device %d not found\n", dev_num);
|
|
#endif
|
|
return NULL;
|
|
}
|
|
|
|
mmc_dev = dev_get_parent(dev);
|
|
|
|
return mmc_get_mmc_dev(mmc_dev);
|
|
}
|
|
|
|
int get_mmc_num(void)
|
|
{
|
|
return max(blk_find_max_devnum(IF_TYPE_MMC), 0);
|
|
}
|
|
|
|
int mmc_get_next_devnum(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = get_mmc_num();
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return ret + 1;
|
|
}
|
|
|
|
struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
|
|
{
|
|
struct blk_desc *desc;
|
|
struct udevice *dev;
|
|
|
|
device_find_first_child(mmc->dev, &dev);
|
|
if (!dev)
|
|
return NULL;
|
|
desc = dev_get_uclass_platdata(dev);
|
|
|
|
return desc;
|
|
}
|
|
|
|
void mmc_do_preinit(void)
|
|
{
|
|
struct udevice *dev;
|
|
struct uclass *uc;
|
|
int ret;
|
|
|
|
ret = uclass_get(UCLASS_MMC, &uc);
|
|
if (ret)
|
|
return;
|
|
uclass_foreach_dev(dev, uc) {
|
|
struct mmc *m = mmc_get_mmc_dev(dev);
|
|
|
|
if (!m)
|
|
continue;
|
|
#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
|
|
mmc_set_preinit(m, 1);
|
|
#endif
|
|
if (m->preinit)
|
|
mmc_start_init(m);
|
|
}
|
|
}
|
|
|
|
#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
|
|
void print_mmc_devices(char separator)
|
|
{
|
|
struct udevice *dev;
|
|
char *mmc_type;
|
|
bool first = true;
|
|
|
|
for (uclass_first_device(UCLASS_MMC, &dev);
|
|
dev;
|
|
uclass_next_device(&dev)) {
|
|
struct mmc *m = mmc_get_mmc_dev(dev);
|
|
|
|
if (!first) {
|
|
printf("%c", separator);
|
|
if (separator != '\n')
|
|
puts(" ");
|
|
}
|
|
if (m->has_init)
|
|
mmc_type = IS_SD(m) ? "SD" : "eMMC";
|
|
else
|
|
mmc_type = NULL;
|
|
|
|
printf("%s: %d", m->cfg->name, mmc_get_blk_desc(m)->devnum);
|
|
if (mmc_type)
|
|
printf(" (%s)", mmc_type);
|
|
}
|
|
|
|
printf("\n");
|
|
}
|
|
|
|
#else
|
|
void print_mmc_devices(char separator) { }
|
|
#endif
|
|
#endif /* CONFIG_BLK */
|
|
|
|
U_BOOT_DRIVER(mmc) = {
|
|
.name = "mmc",
|
|
.id = UCLASS_MMC,
|
|
};
|
|
|
|
UCLASS_DRIVER(mmc) = {
|
|
.id = UCLASS_MMC,
|
|
.name = "mmc",
|
|
.flags = DM_UC_FLAG_SEQ_ALIAS,
|
|
.per_device_auto_alloc_size = sizeof(struct mmc_uclass_priv),
|
|
};
|