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TDA4VH DDR config issue

li quan
Intellectual 945 points
Part Number: TDA4VH

Hi, expers:

Does tda4vh supported 2GB + 2GB + 2GB + 4GB ddr config? Out ddr config as follow :

The the system got stuck on ddr4 probe (uboot-r5-spl). 

Out tda4vh board can boot success on 2GB + 2GB + 2GB + 2GB ddr config.

Thanks 

quanli

  • +1
    TI__Mastermind 32455 points

    Hi,

    The hardware does support 2GB on DDRSS0, 1, 2 and 4GB on DDRSS3.

    The issue here is likely related to a single define of "DDRSS_PLL_FHS_CNT" that is getting used by all 4x DDRSS, when in reality they should be different.

    I am assuming that you currently have DDRSS_PLL_FHS_CNT = 6 in your DTSI file. Is that correct? If so, can you make the change below to the file <U-BOOT BASE>/arch/arm/dts/k3-j784s4-ddr.dtsi . Please note this change applies to memorycontroller3 only.

    https://git.ti.com/cgit/ti-u-boot/ti-u-boot/tree/arch/arm/dts/k3-j784s4-ddr.dtsi?h=08.04.01.005 

    		memorycontroller3: memorycontroller@29f0000 {
			compatible = "ti,j721s2-ddrss";
			reg = <0x0 0x029f0000 0x0 0x4000>,
			      <0x0 0x0114000 0x0 0x100>;
			reg-names = "cfg", "ctrl_mmr_lp4";
			power-domains = <&k3_pds 194 TI_SCI_PD_SHARED>,
				<&k3_pds 139 TI_SCI_PD_SHARED>;
			clocks = <&k3_clks 194 1>, <&k3_clks 78 2>;
			ti,ddr-freq0 = <DDRSS_PLL_FREQUENCY_0>;
			ti,ddr-freq1 = <DDRSS_PLL_FREQUENCY_1>;
			ti,ddr-freq2 = <DDRSS_PLL_FREQUENCY_2>;
			ti,ddr-fhs-cnt = 10;                      // Changed from <DDRSS_PLL_FHS_CNT> to 10
  • 0 in reply to Kevin S
    Intellectual 945 points

    Hi, 

    Thanks, It can work normally。