MMC may wrongly regconize 2GB eMMC as high capacity
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>
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 36f80fa..f27b7c7 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -553,9 +553,6 @@
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);