TI中文支持网Part Number:TDA4VM
Dear SIr:
我已经在英文论坛发布了问题，但是一直没有回复，内容如下，请帮忙分析下问题，多谢
Our software uses Linux RT SDK 08_00_00_08 and the hardware design uses SD card and EMMC
Currently we can boot from an SD card and met an issue that mmc0(emmc) cannot be detect on custom evm board in kernel
And we always got ：
[ 2.502423] mmc0: SDHCI controller on 4f80000.mmc [4f80000.mmc] using ADMA 64-bit
[ 2.678997] mmc0: }mc_select_hs200 failed, error -110
[ 2.684045] mmc0: error -110 whilst initialising MMC card
[ 2.813566] mmc0: mmc_select_hs200 failed, error -110
[ 2.818610] mmc0: error -110 whilst initialising MMC card
[ 2.961772] mmc0: mmc_select_hs200 failed, error -110
[ 2.966816] mmc0: error -110 whilst initialising MMC card
[ 3.152029] mmc0: mmc_select_hs200 failed, error -110
[ 3.157071] mmc0: error -110 whilst initialising MMC card
dts：
main_sdhci0: mmc@4f80000 {
compatible = "ti,j721e-sdhci-8bit";
reg = <0x0 0x4f80000 0x0 0x1000>, <0x0 0x4f88000 0x0 0x400>;
interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
power-domains = <&k3_pds 91 TI_SCI_PD_EXCLUSIVE>;
clock-names = "clk_ahb", "clk_xin";
clocks = <&k3_clks 91 0>, <&k3_clks 91 1>;
assigned-clocks = <&k3_clks 91 1>;
assigned-clock-parents = <&k3_clks 91 2>;
mmc-ddr-1_8v;
mmc-hs200-1_8v;
mmc-hs400-1_8v;
ti,otap-del-sel-legacy = <0x0>;
ti,otap-del-sel-mmc-hs = <0x0>;
ti,otap-del-sel-ddr52 = <0x6>;
ti,otap-del-sel-hs200 = <0x8>;
ti,otap-del-sel-hs400 = <0x5>;
ti,itap-del-sel-legacy = <0x10>;
ti,itap-del-sel-mmc-hs = <0xa>;
ti,clkbuf-sel = <0x7>;
bus-width = <8>;
ti,trm-icp = <0x8>;
ti,strobe-sel = <0x77>;
dma-coherent;
};
&main_sdhci0 {
non-removable;
ti,driver-strength-ohm = <50>;
disable-wp;
};
Thanks.
Nancy Wang：
我看到了您在英文论坛发布的帖子，已分配给对应的工程师跟进，我这边也会再帮你发一封邮件问一下。
,
Nancy Wang：
我邮件已经收到回复，英文论坛帖子较多，这几天应该会处理。
,
jin lei：
好的，多谢，还请尽快，项目比较紧急
,
Nancy Wang：
请关注英文贴。
