From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tero Kristo <t-kristo@ti.com>
Subject: Re: [PATCH] ARM: dts: AM4372: clk: efuse based crystal frequency
 detect
Date: Fri, 23 May 2014 14:05:57 +0300
Message-ID: <537F2B95.1010808@ti.com>
References: <062e8a534b1e372db7ed3daa3df7e3c5b885ffab.1400062517.git.nsekhar@ti.com>
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To: Sekhar Nori <nsekhar@ti.com>, Tony Lindgren <tony@atomide.com>, Benoit Cousson <bcousson@baylibre.com>
Cc: Linux OMAP Mailing List <linux-omap@vger.kernel.org>, Linux ARM Mailing List <linux-arm-kernel@lists.infradead.org>, Device Tree Mailing List <devicetree@vger.kernel.org>
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On 05/14/2014 02:36 PM, Sekhar Nori wrote:
> From: Afzal Mohammed <afzal@ti.com>
>
> Currently oscillator frequency is determined based on sysboot settings,
> it may not be the case always. To determine it properly, efuse settings
> also has to be read. CONTROL_STATUS register holds this information.
> Bit 31:	if 0, frequency to be determined based on sysboot
> 	if 1, frequency to be determined based on efuse
> Bit 29,30 - for efuse detection of frequency
> Bit 22,23 - for sysboot detection of frequency
>
> Add clock nodes (mux) to determine oscillator frequency as above.
>
> Signed-off-by: Afzal Mohammed <afzal@ti.com>
> Acked-by: Tero Kristo <t-kristo@ti.com>
> Signed-off-by: Sekhar Nori <nsekhar@ti.com>

Thanks, queued for 3.16.

-Tero

> ---
>   arch/arm/boot/dts/am43xx-clocks.dtsi |   16 ++++++++++++++++
>   1 file changed, 16 insertions(+)
>
> diff --git a/arch/arm/boot/dts/am43xx-clocks.dtsi b/arch/arm/boot/dts/am43xx-clocks.dtsi
> index 142009c..71b029c 100644
> --- a/arch/arm/boot/dts/am43xx-clocks.dtsi
> +++ b/arch/arm/boot/dts/am43xx-clocks.dtsi
> @@ -11,6 +11,22 @@
>   	sys_clkin_ck: sys_clkin_ck {
>   		#clock-cells = <0>;
>   		compatible = "ti,mux-clock";
> +		clocks = <&sysboot_freq_sel_ck>, <&crystal_freq_sel_ck>;
> +		ti,bit-shift = <31>;
> +		reg = <0x0040>;
> +	};
> +
> +	crystal_freq_sel_ck: crystal_freq_sel_ck {
> +		#clock-cells = <0>;
> +		compatible = "ti,mux-clock";
> +		clocks = <&virt_19200000_ck>, <&virt_24000000_ck>, <&virt_25000000_ck>, <&virt_26000000_ck>;
> +		ti,bit-shift = <29>;
> +		reg = <0x0040>;
> +	};
> +
> +	sysboot_freq_sel_ck: sysboot_freq_sel_ck@44e10040 {
> +		#clock-cells = <0>;
> +		compatible = "ti,mux-clock";
>   		clocks = <&virt_19200000_ck>, <&virt_24000000_ck>, <&virt_25000000_ck>, <&virt_26000000_ck>;
>   		ti,bit-shift = <22>;
>   		reg = <0x0040>;
>