From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Vasut <marex@denx.de>
Date: Thu, 27 Sep 2012 18:13:36 +0200
Subject: [U-Boot] [PATCH 1/6] am33xx: Enable UART{1,2,4,5} clocks
In-Reply-To: <1348689859-21803-2-git-send-email-andrew@bradfordembedded.com>
References: <1348689859-21803-1-git-send-email-andrew@bradfordembedded.com>
	<1348689859-21803-2-git-send-email-andrew@bradfordembedded.com>
Message-ID: <201209271813.36568.marex@denx.de>
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To: u-boot@lists.denx.de

Dear Andrew Bradford,

> If configured to use UART{1,2,4,5}, such as on the Beaglebone RS232
> cape, enable the required clocks for the UART in use.
> 
> Signed-off-by: Andrew Bradford <andrew@bradfordembedded.com>
> ---
>  arch/arm/cpu/armv7/am33xx/clock.c |   28 ++++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/arch/arm/cpu/armv7/am33xx/clock.c
> b/arch/arm/cpu/armv7/am33xx/clock.c index 2b19506..4eb9226 100644
> --- a/arch/arm/cpu/armv7/am33xx/clock.c
> +++ b/arch/arm/cpu/armv7/am33xx/clock.c
> @@ -114,6 +114,34 @@ static void enable_per_clocks(void)
>  	while (readl(&cmwkup->wkup_uart0ctrl) != PRCM_MOD_EN)
>  		;
> 
> +	/* UART1 */
> +#ifdef CONFIG_SERIAL2
> +	writel(PRCM_MOD_EN, &cmper->uart1clkctrl);
> +	while (readl(&cmper->uart1clkctrl) != PRCM_MOD_EN)
> +		;

Call WATCHDOG_RESET() here, fix glboally

> +#endif /* CONFIG_SERIAL2 */
> +
> +	/* UART2 */
> +#ifdef CONFIG_SERIAL3
> +	writel(PRCM_MOD_EN, &cmper->uart2clkctrl);
> +	while (readl(&cmper->uart2clkctrl) != PRCM_MOD_EN)
> +		;
> +#endif /* CONFIG_SERIAL3 */
> +
> +	/* UART4 */
> +#ifdef CONFIG_SERIAL5
> +	writel(PRCM_MOD_EN, &cmper->uart4clkctrl);
> +	while (readl(&cmper->uart4clkctrl) != PRCM_MOD_EN)
> +		;
> +#endif /* CONFIG_SERIAL5 */
> +
> +	/* UART5 */
> +#ifdef CONFIG_SERIAL6
> +	writel(PRCM_MOD_EN, &cmper->uart5clkctrl);
> +	while (readl(&cmper->uart5clkctrl) != PRCM_MOD_EN)
> +		;
> +#endif /* CONFIG_SERIAL6 */
> +
>  	/* MMC0*/
>  	writel(PRCM_MOD_EN, &cmper->mmc0clkctrl);
>  	while (readl(&cmper->mmc0clkctrl) != PRCM_MOD_EN)

Best regards,
Marek Vasut