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MLK-23331 arm64: dts: imx8mn: Update settings according to latest datasheet 

According to latest datasheet Rev.0.1, 03/2020, VDD_ARM does
NOT have dependency on VDD_SOC, so below table in datasheet
can be used directly for VDD_ARM:

Clock               Voltage
1.2GHz              0.85V
1.4GHz              0.95V
1.5GHz              1.0V

For DDR4 EVK board, system runs at nominal mode, so GPU can
ONLY run up to 400MHz.

For LPDDR4 EVK board, system runs at over-drive mode, so GPU
can run up to 600MHz.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
5.4-rM2-2.2.x-imx-squashed
Anson Huang 2020-02-21 17:21:16 +08:00
parent befb57153a
commit 0cd4e78334
2 changed files with 13 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
View File

@ -97,12 +97,6 @@
};
};
&a53_opp_table {
opp-1200000000 {
opp-microvolt = <950000>;
};
};
&clk {
assigned-clocks = <&clk IMX8MN_AUDIO_PLL1>, <&clk IMX8MN_AUDIO_PLL2>;
assigned-clock-rates = <393216000>, <361267200>;
@ -831,6 +825,19 @@
};
&gpu {
assigned-clocks = <&clk IMX8MN_CLK_GPU_CORE_SRC>,
<&clk IMX8MN_CLK_GPU_SHADER_SRC>,
<&clk IMX8MN_CLK_GPU_AXI>,
<&clk IMX8MN_CLK_GPU_AHB>,
<&clk IMX8MN_GPU_PLL>,
<&clk IMX8MN_CLK_GPU_CORE_DIV>,
<&clk IMX8MN_CLK_GPU_SHADER_DIV>;
assigned-clock-parents = <&clk IMX8MN_GPU_PLL_OUT>,
<&clk IMX8MN_GPU_PLL_OUT>,
<&clk IMX8MN_SYS_PLL1_800M>,
<&clk IMX8MN_SYS_PLL1_800M>;
assigned-clock-rates = <0>, <0>, <800000000>, <400000000>, <1200000000>,
<400000000>, <400000000>;
status= "okay";
};

6
arch/arm64/boot/dts/freescale/imx8mn-evk.dts
View File

@ -125,12 +125,6 @@
cpu-supply = <&buck2_reg>;
};
&a53_opp_table {
opp-1200000000 {
opp-microvolt = <950000>;
};
};
&clk {
assigned-clocks = <&clk IMX8MN_AUDIO_PLL1>, <&clk IMX8MN_AUDIO_PLL2>;
assigned-clock-rates = <393216000>, <361267200>;