MIMX8MQ5DVAJZAB (Imx8m Quad Lite) console hang issue

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MIMX8MQ5DVAJZAB (Imx8m Quad Lite) console hang issue

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anil_patel
Contributor III

Hi support team,

We are using MIMX8MQ5DVAJZAB (Imx8m Quad Lite) processor and "rel_imx_4.14.98_2.0.0_ga" kernel release for our custom board. In case you are not the right person for this platform, appreciated if you can divert me to the right person and/or divert this query to the right person.

 

We see that the console hangs within 4 to 5 sec after booting the target device.

 

After debugging further and disabling busfreq node we see that the issue is resolved i.e the console does not hang.

 

Please confirm if  this workaround is valid?

 

It would be usefule to know - if there is any specific release or changes required for Imx8m Quad Lite other than in Imx8m Quad?

Because we have not seen such kind issue with MIMX8MQ6DVAJZAA (Imx8m Quad) Processor.

Below is the changes done.

 

    busfreq { /* BUSFREQ */

        compatible = "fsl,imx_busfreq";

        clocks = <&clk IMX8MQ_DRAM_PLL_OUT>, <&clk IMX8MQ_CLK_DRAM_ALT>,

             <&clk IMX8MQ_CLK_DRAM_APB>, <&clk IMX8MQ_CLK_DRAM_APB>,

                 <&clk IMX8MQ_CLK_DRAM_CORE>, <&clk IMX8MQ_CLK_DRAM_ALT_ROOT>,

             <&clk IMX8MQ_SYS1_PLL_40M>, <&clk IMX8MQ_SYS1_PLL_400M>,

             <&clk IMX8MQ_SYS1_PLL_100M>, <&clk IMX8MQ_SYS1_PLL_800M>,

             <&clk IMX8MQ_CLK_NOC>, <&clk IMX8MQ_CLK_MAIN_AXI>,

             <&clk IMX8MQ_CLK_AHB>, <&clk IMX8MQ_CLK_25M>,

             <&clk IMX8MQ_SYS2_PLL_333M>, <&clk IMX8MQ_SYS1_PLL_133M>;

        clock-names = "dram_pll", "dram_alt_src", "dram_apb_src", "dram_apb_pre_div",

                  "dram_core", "dram_alt_root", "sys1_pll_40m", "sys1_pll_400m",

                  "sys1_pll_100m", "sys1_pll_800m", "noc_div", "main_axi_src",

                  "ahb_div", "osc_25m", "sys2_pll_333m", "sys1_pll_133m";

        interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,

                 <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;

        interrupt-name = "irq_busfreq_0", "irq_busfreq_1", "irq_busfreq_2", "irq_busfreq_3";

++  status = "disabled";

    };

 

Thanks in advance for your support and response to the above query.

 

Appreciated for a quick turnaround.

Thanks,

Arjun

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2 Replies

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b36401
NXP Employee
NXP Employee

There shoult not be significant difference between Quad and QuadLite.
However the issue may be caused with processor revision.
There may be some minor changes.
I mean last sign of the partnumber. It is describen on Figure 2 of the DataSheet.

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anil_patel
Contributor III

Hi Victor,

Thank you for your quick response.

but here we are facing issue with latest revision MIMX8MQ5DVAJZAB (Imx8m Quad Lite Rev1.1) with latest kernel release "rel_imx_4.14.98_2.0.0_ga". so can you please tell us which kernel version required for MIMX8MQ5DVAJZAB (Imx8m Quad Lite Rev1.1) ?

Thanks,

Arjun

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