LXR uboot/drivers/mmc/mmc

   1/*
   2 * Copyright (C) 2016 Google, Inc
   3 * Written by Simon Glass <sjg@chromium.org>
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#include <common.h>
   9#include <mmc.h>
  10
  11static struct list_head mmc_devices;
  12static int cur_dev_num = -1;
  13
  14struct mmc *find_mmc_device(int dev_num)
  15{
  16        struct mmc *m;
  17        struct list_head *entry;
  18
  19        list_for_each(entry, &mmc_devices) {
  20                m = list_entry(entry, struct mmc, link);
  21
  22                if (m->block_dev.devnum == dev_num)
  23                        return m;
  24        }
  25
  26#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
  27        printf("MMC Device %d not found\n", dev_num);
  28#endif
  29
  30        return NULL;
  31}
  32
  33int mmc_get_next_devnum(void)
  34{
  35        return cur_dev_num++;
  36}
  37
  38struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
  39{
  40        return &mmc->block_dev;
  41}
  42
  43int get_mmc_num(void)
  44{
  45        return cur_dev_num;
  46}
  47
  48void mmc_do_preinit(void)
  49{
  50        struct mmc *m;
  51        struct list_head *entry;
  52
  53        list_for_each(entry, &mmc_devices) {
  54                m = list_entry(entry, struct mmc, link);
  55
  56#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
  57                mmc_set_preinit(m, 1);
  58#endif
  59                if (m->preinit)
  60                        mmc_start_init(m);
  61        }
  62}
  63
  64void mmc_list_init(void)
  65{
  66        INIT_LIST_HEAD(&mmc_devices);
  67        cur_dev_num = 0;
  68}
  69
  70void mmc_list_add(struct mmc *mmc)
  71{
  72        INIT_LIST_HEAD(&mmc->link);
  73
  74        list_add_tail(&mmc->link, &mmc_devices);
  75}
  76
  77#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
  78void print_mmc_devices(char separator)
  79{
  80        struct mmc *m;
  81        struct list_head *entry;
  82        char *mmc_type;
  83
  84        list_for_each(entry, &mmc_devices) {
  85                m = list_entry(entry, struct mmc, link);
  86
  87                if (m->has_init)
  88                        mmc_type = IS_SD(m) ? "SD" : "eMMC";
  89                else
  90                        mmc_type = NULL;
  91
  92                printf("%s: %d", m->cfg->name, m->block_dev.devnum);
  93                if (mmc_type)
  94                        printf(" (%s)", mmc_type);
  95
  96                if (entry->next != &mmc_devices) {
  97                        printf("%c", separator);
  98                        if (separator != '\n')
  99                                puts(" ");
 100                }
 101        }
 102
 103        printf("\n");
 104}
 105
 106#else
 107void print_mmc_devices(char separator) { }
 108#endif
 109