mmc: Add more debugging for SPL
When MMC booting fails it is sometimes hard to figure out what went wrong as there is no error code. It isn't even clear which MMC device was chosen, since SPL can have its own numbering. Add some debugging to help with this. Signed-off-by: Simon Glass <sjg@chromium.org>
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@@ -50,6 +50,7 @@ int mmc_load_image_raw_sector(struct spl_image_info *spl_image,
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ret = spl_load(spl_image, bootdev, &load, 0, sector << bd->log2blksz);
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if (ret) {
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puts("mmc_load_image_raw_sector: mmc block read error\n");
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log_debug("(error=%d)\n", ret);
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return ret;
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}
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@@ -76,6 +77,12 @@ static int spl_mmc_find_device(struct mmc **mmcp, int mmc_dev)
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int ret;
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#if CONFIG_IS_ENABLED(DM_MMC)
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struct udevice *dev;
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struct uclass *uc;
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log_debug("Selecting MMC dev %d; seqs:\n", mmc_dev);
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uclass_id_foreach_dev(UCLASS_MMC, dev, uc)
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log_debug("%d: %s\n", dev_seq(dev), dev->name);
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ret = mmc_init_device(mmc_dev);
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#else
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ret = mmc_initialize(NULL);
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@@ -91,6 +98,9 @@ static int spl_mmc_find_device(struct mmc **mmcp, int mmc_dev)
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mmc_dev, ret);
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return ret;
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}
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#if CONFIG_IS_ENABLED(DM_MMC)
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log_debug("mmc %d: %s\n", mmc_dev, (*mmcp)->dev->name);
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#endif
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return 0;
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}
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@@ -342,6 +352,8 @@ int spl_mmc_load(struct spl_image_info *spl_image,
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/* Perform peripheral init only once for an mmc device */
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mmc_dev = spl_mmc_get_device_index(bootdev->boot_device);
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log_debug("boot_device=%d, mmc_dev=%d\n", bootdev->boot_device,
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mmc_dev);
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if (!mmc || spl_mmc_get_mmc_devnum(mmc) != mmc_dev) {
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ret = spl_mmc_find_device(&mmc, mmc_dev);
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if (ret)
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