[PATCH 2/8] ARM: imx: add clocking support code for the IMX50 SoC

Greg Ungerer gerg at uclinux.org
Wed Oct 23 08:44:22 EDT 2013


Hi Jason,

On 23/10/13 19:19, Jason Cooper wrote:
> Greg,
>
> On Fri, Oct 18, 2013 at 04:04:14PM +1000, gerg at uclinux.org wrote:
>> From: Greg Ungerer <gerg at uclinux.org>
>>
>> Add code to support the specific clock tree of the Freescale IMX50 SoC.
>> It can use much of the common IMX51/IMX53 clocking code.
>>
>> Signed-off-by: Greg Ungerer <gerg at uclinux.org>
>> ---
>>   arch/arm/mach-imx/clk-imx51-imx53.c | 79 +++++++++++++++++++++++++++++++++++++
>>   arch/arm/mach-imx/common.h          |  3 ++
>>   2 files changed, 82 insertions(+)
>>
>> diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c
>> index 7c0dc45..ea4523a 100644
>> --- a/arch/arm/mach-imx/clk-imx51-imx53.c
>> +++ b/arch/arm/mach-imx/clk-imx51-imx53.c
>> @@ -363,6 +363,80 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
>>   	clk_prepare_enable(clk[tmax3]); /* esdhc1, esdhc4 */
>>   }
>>
>> +int __init mx50_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
>> +			unsigned long rate_ckih1, unsigned long rate_ckih2)
>> +{
>> +	int i;
>> +	unsigned long r;
>> +	struct device_node *np;
>> +
>> +	clk[pll1_sw] = imx_clk_pllv2("pll1_sw", "osc", MX53_DPLL1_BASE);
>> +	clk[pll2_sw] = imx_clk_pllv2("pll2_sw", "osc", MX53_DPLL2_BASE);
>> +	clk[pll3_sw] = imx_clk_pllv2("pll3_sw", "osc", MX53_DPLL3_BASE);
>
> What about the apll and it's derivatives?

The IMX50RM.pdf seems light on details on the apll. Is it any different
to the imx51 and imx53 families?

Regards
Greg




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