Hello,
I am trying to run mainline linux with mainline u-boot on tmb2200ra (A TV BOX
made by TIAOBAO, A31s,1GB Ram, 8GB eMMC and 100Mb Ethenet (ICPLUS IP101GR
PHY)), the GMAC speed is very stange, scp from other computer speed at 8.0MB/s,
pretty good, while scp to other machine start at 2.0MB/s and gradually drop to
around 70KB/s and stable at there. The stock android kernel can go beyond 8.0MB
for both Rx and Tx, so it's not hardware problem.
My dts file is minimum, with gmac set as:
gmac: ethernet@01c30000 {
pinctrl-names = "default";
pinctrl-0 = <&gmac_pins_mii_a>;
phy = <&phy1>;
phy-mode = "mii";
status = "okay";
phy1: ethernet-phy@1 {
reg = <1>;
};
};
I noticed there are some discussion about CONFIG_GMAC_TX_DELAY in uboot, I
tried 0 and 3, it seems has no effect on this problem.
Please anyone shed some light on this problem?
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