From: Raffaele Recalcati <lamiaposta71@gmail.com>
Date: Wed, 23 Mar 2011 04:06:50 +0000 (+0000)
Subject: MMC may wrongly regconize 2GB eMMC as high capacity
X-Git-Tag: v2011.06-rc1~147^2
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=8511cd84ab2749c8edf41d123f365a1d2353528e;p=u-boot

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 36f80fa09f..f27b7c79e5 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -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);