141 lines
2.4 KiB
C
141 lines
2.4 KiB
C
/*
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* Copyright (C) 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <mmc.h>
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#include <dm.h>
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#include <dm/lists.h>
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#include <dm/root.h>
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struct mmc *mmc_get_mmc_dev(struct udevice *dev)
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{
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struct mmc_uclass_priv *upriv;
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if (!device_active(dev))
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return NULL;
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upriv = dev_get_uclass_priv(dev);
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return upriv->mmc;
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}
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#ifdef CONFIG_BLK
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struct mmc *find_mmc_device(int dev_num)
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{
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struct udevice *dev, *mmc_dev;
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int ret;
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ret = blk_get_device(IF_TYPE_MMC, dev_num, &dev);
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if (ret) {
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#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
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printf("MMC Device %d not found\n", dev_num);
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#endif
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return NULL;
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}
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mmc_dev = dev_get_parent(dev);
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return mmc_get_mmc_dev(mmc_dev);
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}
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int get_mmc_num(void)
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{
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return max(blk_find_max_devnum(IF_TYPE_MMC), 0);
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}
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int mmc_get_next_devnum(void)
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{
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int ret;
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ret = get_mmc_num();
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if (ret < 0)
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return ret;
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return ret + 1;
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}
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struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
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{
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struct blk_desc *desc;
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struct udevice *dev;
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device_find_first_child(mmc->dev, &dev);
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if (!dev)
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return NULL;
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desc = dev_get_uclass_platdata(dev);
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return desc;
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}
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void mmc_do_preinit(void)
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{
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struct udevice *dev;
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struct uclass *uc;
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int ret;
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ret = uclass_get(UCLASS_MMC, &uc);
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if (ret)
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return;
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uclass_foreach_dev(dev, uc) {
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struct mmc *m = mmc_get_mmc_dev(dev);
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if (!m)
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continue;
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#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
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mmc_set_preinit(m, 1);
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#endif
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if (m->preinit)
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mmc_start_init(m);
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}
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}
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#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
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void print_mmc_devices(char separator)
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{
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struct udevice *dev;
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char *mmc_type;
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bool first = true;
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for (uclass_first_device(UCLASS_MMC, &dev);
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dev;
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uclass_next_device(&dev)) {
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struct mmc *m = mmc_get_mmc_dev(dev);
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if (!first) {
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printf("%c", separator);
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if (separator != '\n')
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puts(" ");
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}
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if (m->has_init)
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mmc_type = IS_SD(m) ? "SD" : "eMMC";
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else
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mmc_type = NULL;
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printf("%s: %d", m->cfg->name, mmc_get_blk_desc(m)->devnum);
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if (mmc_type)
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printf(" (%s)", mmc_type);
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}
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printf("\n");
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}
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#else
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void print_mmc_devices(char separator) { }
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#endif
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#endif /* CONFIG_BLK */
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U_BOOT_DRIVER(mmc) = {
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.name = "mmc",
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.id = UCLASS_MMC,
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};
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UCLASS_DRIVER(mmc) = {
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.id = UCLASS_MMC,
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.name = "mmc",
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.flags = DM_UC_FLAG_SEQ_ALIAS,
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.per_device_auto_alloc_size = sizeof(struct mmc_uclass_priv),
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};
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