[U-Boot] [PATCH v2 1/2] arm: socfpga: mmc: Enable calibration for drvsel and smpsel

[Pavel Machek <pavel@denx.de>]

On Thu 2015-08-20 02:18:29, Chin Liang See wrote:
> Enable SDMMC calibration to determine the best setting for
> drvsel and smpsel. It will be triggered whenever there is
> a change of card frequency and bus width. This is to ensure
> reliable transmission between the controller and the card.
> 
> Signed-off-by: Chin Liang See <clsee@altera.com>
> Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
> Cc: Pavel Machek <pavel@denx.de>
> Cc: Marek Vasut <marex@denx.de>
> Cc: Stefan Roese <sr@denx.de>



> +			/* Determine if the rectangle fits here */
> +			for (add_col = 0; (add_col < rect_width) && ok;
> +			     add_col++) {
> +				for (add_row = 0; add_row < rect_height;
> +				     add_row++) {
> +					if (!cal_results[start_row + add_row]
> +					    [start_col + add_col]) {
> +						ok = 0;
> +						break;
> +					}
> +				}
> +			}

> +			/*
> +			 * Return 'middle' of rectangle in case of
> +			 * success
> +			 */
> +			if (ok) {
> +				if (rect_width > 1)
> +					rect_width--;
> +
> +				if (rect_height > 1)
> +					rect_height--;
> +
> +				*cal_row = start_row + (rect_height / 2);
> +				*cal_col = start_col + (rect_width / 2);
> +
> +				return 0;
> +			}

This should go into separate function.

The "&& ok" is not neccessary, since you break.

Thanks,
									Pavel
-- 
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