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https://github.com/brain-hackers/u-boot-brain
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c40fdca6b7
At present the MMC subsystem maintains its own list of MMC devices. This cannot work with driver model, which needs to maintain this itself. Move the list code into a separate 'legacy' file. The core MMC code remains, and will be shared with the driver-model implementation. Signed-off-by: Simon Glass <sjg@chromium.org>
109 lines
1.8 KiB
C
109 lines
1.8 KiB
C
/*
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* Copyright (C) 2016 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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static struct list_head mmc_devices;
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static int cur_dev_num = -1;
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struct mmc *find_mmc_device(int dev_num)
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{
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struct mmc *m;
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struct list_head *entry;
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list_for_each(entry, &mmc_devices) {
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m = list_entry(entry, struct mmc, link);
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if (m->block_dev.devnum == dev_num)
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return m;
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}
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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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int mmc_get_next_devnum(void)
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{
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return cur_dev_num++;
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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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return &mmc->block_dev;
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}
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int get_mmc_num(void)
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{
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return cur_dev_num;
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}
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void mmc_do_preinit(void)
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{
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struct mmc *m;
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struct list_head *entry;
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list_for_each(entry, &mmc_devices) {
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m = list_entry(entry, struct mmc, link);
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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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void mmc_list_init(void)
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{
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INIT_LIST_HEAD(&mmc_devices);
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cur_dev_num = 0;
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}
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void mmc_list_add(struct mmc *mmc)
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{
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INIT_LIST_HEAD(&mmc->link);
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list_add_tail(&mmc->link, &mmc_devices);
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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 mmc *m;
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struct list_head *entry;
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char *mmc_type;
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list_for_each(entry, &mmc_devices) {
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m = list_entry(entry, struct mmc, link);
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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, m->block_dev.devnum);
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if (mmc_type)
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printf(" (%s)", mmc_type);
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if (entry->next != &mmc_devices) {
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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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}
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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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