From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Sat, 9 Aug 2008 11:13:23 +0200
Subject: [U-Boot-Users] [PATCH 5/7 v6] serial: add S3C64XX serial driver
In-Reply-To: <Pine.LNX.4.64.0808062131560.27004@axis700.grange>
References: <Pine.LNX.4.64.0808062001320.27004@axis700.grange>
	<Pine.LNX.4.64.0808062131560.27004@axis700.grange>
Message-ID: <20080809091323.GD18040@game.jcrosoft.org>
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> +	u32 reg;
> +	u32 pclk_ratio = get_PCLK() / gd->baudrate;
> +	int i;
> +
IMHO it's still obscur
> +	/* PCLK / (16 * baudrate) - 1 */
> +	reg = pclk_ratio / 16 - 1;
> +	/* i = pclk_ratio % 16 */
> +	i = pclk_ratio - (reg + 1) * 16;
> +
> +	uart->UBRDIV = reg;
> +	uart->UDIVSLOT = udivslot[i];
> +
> +	for (i = 0; i < 100; i++)
> +		barrier();
> +}

Best Regards,
J.