hello, I have ran into this issue recently with two different X96 mini boxes. One box which had a 8GB Samsung KLM8G1GEME-B041 NAND chip which worked fine, the other box's had a 16GB SK hynix H26M52103FMR and it failed to mount as eMMC.
I investigated both chips and it turns out KLM8G1GEME-B041 supports HS200 bus speed mode, but H26M52103FMR does not. I found in the the .dtb file I was using it will try to use HS200 mode. So I decompiled the .dtb file and commented out the HS200 bus speed line in mmc and it successfully mounted as eMMC afterwards.
mmc@74000 {
compatible = "amlogic,meson-gx-mmc\0amlogic,meson-gxbb-mmc";
reg = <0x00 0x74000 0x00 0x800>;
interrupts = <0x00 0xda 0x04>;
status = "okay";
clocks = <0x03 0x60 0x03 0x7d 0x03 0x04>;
clock-names = "core\0clkin0\0clkin1";
resets = <0x11 0x2e>;
pinctrl-0 = <0x29 0x2a>;
pinctrl-1 = <0x2b>;
pinctrl-names = "default\0clk-gate";
bus-width = <0x08>;
cap-mmc-highspeed;
max-frequency = <0xbebc200>;
non-removable;
disable-wp;
mmc-ddr-1_8v;
//mmc-hs200-1_8v; // <- Comment out this line
mmc-pwrseq = <0x2c>;
vmmc-supply = <0x2d>;
vqmmc-supply = <0x25>;
phandle = <0xa0>;
};
That worked for me, so I'm submitting this finding to give back as I have had relied on community help trying to get started.
But I really don't want to get any further into TV boxes, this is once again yet another problem caused by cost cutting measures of manufacturing cheap TV boxes and there will only be more problems trying to get further.
