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Microzed SD Card

Former Member

I am running petalinux on my microzed. I can boot from the SD card, but unable to mount it after the kernel comes up. In the log messages I see :
mmc0: error -110 whilst initialising SD card

Any suggestions?

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    Found the problem.

    Clock frequency need to be changed for microzed

    ps7_sd_0: ps7-sdio@e0100000 {
    tttclock-frequency = <0x7735940>;
    -tttcompatible = "xlnx,ps7-sdio-1.00.a", "generic-sdhci";
    -tttinterrupt-parent = <&ps7_scugic_0>;
    -tttinterrupts = <0x0 0x18 0x4>;
    +tttclock-names = "ref_clk", "aper_clk";
    +tttclocks = <&clkc 21>, <&clkc 32>;
    +tttcompatible = "xlnx,ps7-sdio-1.00.a", "generic-sdhci", "arasan,sdhci";
    +tttinterrupt-parent = <&ps7_scugic_0>;
    +tttinterrupts = <0 24 4>;
    tttreg = <0xe0100000 0x1000>;
    tttxlnx,has-cd = <0x1>;
    tttxlnx,has-power = <0x0>;
    tttxlnx,has-wp = <0x1>;
    tttxlnx,sdio-clk-freq-hz = <0x3f93e10>;
    -tt};

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  • 0

    Found the problem.

    Clock frequency need to be changed for microzed

    ps7_sd_0: ps7-sdio@e0100000 {
    tttclock-frequency = <0x7735940>;
    -tttcompatible = "xlnx,ps7-sdio-1.00.a", "generic-sdhci";
    -tttinterrupt-parent = <&ps7_scugic_0>;
    -tttinterrupts = <0x0 0x18 0x4>;
    +tttclock-names = "ref_clk", "aper_clk";
    +tttclocks = <&clkc 21>, <&clkc 32>;
    +tttcompatible = "xlnx,ps7-sdio-1.00.a", "generic-sdhci", "arasan,sdhci";
    +tttinterrupt-parent = <&ps7_scugic_0>;
    +tttinterrupts = <0 24 4>;
    tttreg = <0xe0100000 0x1000>;
    tttxlnx,has-cd = <0x1>;
    tttxlnx,has-power = <0x0>;
    tttxlnx,has-wp = <0x1>;
    tttxlnx,sdio-clk-freq-hz = <0x3f93e10>;
    -tt};

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