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board: nucleo_h723zg: Convert to dts based clock configuration

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Configure board clocks using device tree.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit is contained in:
Erwan Gouriou 2021-04-29 14:45:10 +02:00 • committed by Carles Cufí
commit 735af94a1f
2 changed files with 28 additions and 34 deletions
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27
boards/arm/nucleo_h723zg/nucleo_h723zg.dts
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@ -62,6 +62,33 @@
};
};
&clk_hse {
hse-bypass;
clock-frequency = <DT_FREQ_M(8)>; /* STLink 8MHz clock */
status = "okay";
};
&pll {
div-m = <4>;
mul-n = <275>;
div-p = <1>;
div-q = <4>;
div-r = <2>;
clocks = <&clk_hse>;
status = "okay";
};
&rcc {
clocks = <&pll>;
clock-frequency = <DT_FREQ_M(550)>;
d1cpre = <1>;
hpre = <2>; /* HCLK: 275 MHz */
d1ppre = <2>; /* APB1: 137.5 MHz */
d2ppre1 = <2>; /* APB2: 137.5 MHz */
d2ppre2 = <2>; /* APB3: 137.5 MHz */
d3ppre = <2>; /* APB4: 137.5 MHz */
};
&usart3 {
pinctrl-0 = <&usart3_tx_pd8 &usart3_rx_pd9>;
current-speed = <115200>;