[U-Boot] [PATCH 2/4] MMC Card Capacity Bug Fix

[Sudhakar Rajashekhara <sudhakar.raj@ti.com>]

Hi Alagu,

On Wed, May 12, 2010 at 15:08:25, Alagu Sankar wrote:
> Fixed a bug in card capacity calculation for MMC high-capacity cards.
> 
> Signed-off-by: Alagu Sankar <alagusankar@embwise.com>
> ---
>  drivers/mmc/mmc.c |    9 ++++++++-
>  1 files changed, 8 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
> index 959d8ad..e7abf94 100644
> --- a/drivers/mmc/mmc.c
> +++ b/drivers/mmc/mmc.c
> @@ -393,6 +393,7 @@ int mmc_change_freq(struct mmc *mmc)
>  	char ext_csd[512];
>  	char cardtype;
>  	int err;
> +	unsigned int sec_count;
>  

This can be uint too or you can use unsigned int to typecast below.

Regards,
Sudhakar

>  	mmc->card_caps = 0;
>  
> @@ -407,8 +408,14 @@ int mmc_change_freq(struct mmc *mmc)
>  	if (err)
>  		return err;
>  
> -	if (ext_csd[212] || ext_csd[213] || ext_csd[214] || ext_csd[215])
> +	sec_count = ((uint)ext_csd[212] |
> +			((uint)ext_csd[213] << 8) |
> +			((uint)ext_csd[214] << 16) |
> +			((uint)ext_csd[215] << 24));
> +	if (sec_count) {
>  		mmc->high_capacity = 1;
> +		mmc->capacity = sec_count * 512;
> +	}
>  
>  	cardtype = ext_csd[196] & 0xf;
>  
> -- 
> 1.6.0.6
> 
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