[PATCH v5 7/7] clk: samsung: Add EPLL and VPLL freq table for exynos5250 SoC

Vikas Sajjan vikas.sajjan at linaro.org
Tue Jun 18 03:10:39 EDT 2013


Hi Andrew,

On 18 June 2013 01:38, Andrew Bresticker <abrestic at chromium.org> wrote:
>> +static __initdata struct samsung_pll_rate_table epll_24mhz_tbl[] = {
>> +       /* sorted in descending order */
>> +       /* PLL_36XX_RATE(rate, m, p, s, k) */
>> +       PLL_36XX_RATE(192000000, 48, 3, 1, 0),
>> +       PLL_36XX_RATE(180633600, 45, 3, 1, 10381),
>> +       PLL_36XX_RATE(180000000, 45, 3, 1, 0),
>> +       PLL_36XX_RATE(73728000, 73, 3, 3, 47710),
>> +       PLL_36XX_RATE(67737600, 90, 4, 3, 20762),
>> +       PLL_36XX_RATE(49152000, 49, 3, 3, 9962),
>> +       PLL_36XX_RATE(45158400, 45, 3, 3, 10381),
>> +       PLL_36XX_RATE(32768000, 131, 3, 5, 4719),
>> +       { },
>> +};
>
> I believe the UM says that 64 <= m <= 511.  Although the above seems
> to work on 5250 and 5420, it might be better to use a table that
> conforms to the constraint on m:
>

OK, will test with the below table and resend.


> PLL_36XX_RATE(192000000, 64, 2, 2, 0),
> PLL_36XX_RATE(180633600, 90, 3, 2, 20762),
> PLL_36XX_RATE(180000000, 90, 3, 2, 0),
> PLL_36XX_RATE(73728000, 98, 2, 4, 19923),
> PLL_36XX_RATE(67737600, 90, 2, 4, 20762),
> PLL_36XX_RATE(49152000, 98, 3, 4, 19923),
> PLL_36XX_RATE(45158400, 90, 3, 4, 20762),
> PLL_36XX_RATE(32768000, 131, 3, 5, 4719)
>
> Thanks,
> Andrew



--
Thanks and Regards
 Vikas Sajjan



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