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MMC may wrongly regconize 2GB eMMC as high capacity

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Hi Terry,

> So I guess:
> mmc_init calls mmc_send_op_cond  that set  high_capacity,
> than it calls mmc_startup, that, with MMC_CMD_SEND_CSD  command, set
> the capacity, using values in CSD register.
> So I guess that mmc_change_freq should not recalculate high_capacity.
>
> It seems better, isn't it?
>
> Regards,
> Raffaele
>

Finally I think that it is enough to apply the following patch in order
to fix the issue.

Regards,
Raffaele

Signed-off-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
Raffaele Recalcati 2011-03-23 04:06:50 +00:00 committed by Andy Fleming
parent 5db2fe3ad9
commit 8511cd84ab
1 changed files with 0 additions and 3 deletions
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3
drivers/mmc/mmc.c
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@ -553,9 +553,6 @@ int mmc_change_freq(struct mmc *mmc)
if (err)
return err;
if (ext_csd[212] || ext_csd[213] || ext_csd[214] || ext_csd[215])
mmc->high_capacity = 1;
cardtype = ext_csd[196] & 0xf;
err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, 1);