ss928 sd3403 使用原厂SDK编译的uboot，内核下载到板子，一直出现网络错误？？

海思

SD3403

SS928

有大佬知道什么问题吗？？为啥下载到内核的时候会网络不通？？
是uboot要修改网络驱动吗？？还是网口硬件有问题？
按理说原厂sdk直接编译直接烧写没问题的啊
网线啥的换过，也和电脑直连过，都不行，也没有占用69端口，换了其他的电脑也不行。。。。

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UncleRoderick

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UncleRoderick 2023-05-11 11:19:44

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*对比修改后的UBOOT和内核发现有以下改动:
①.修改了GMAC数量
include/configs/ss928v100.h

define CONFIG_GMAC_NUMS 2

define CONFIG_GMAC_PHY1_ADDR 1

②.内核配置项多了CONFIG_MII=y，以及CONFIG_USB_DRD0_IN_HOST=y

③.增加Flash下EMMC支持以及mdio1地址
arch/arm64/boot/dts/vendor/ss928v100-demb-flash.dts
&mmc0 {
bus-width = <4>;
status = “okay”;
};

arch/arm64/boot/dts/vendor/ss928v100-demb.dts
&mdio1 {
ethphy1: ethernet-phy@1 {
reg = <1>;
};
}

对比uboot发现u-boot-2020.01\drivers\net\gmacv300\gmac.c有修改

/ PHY-RTL8211F by-3 /
if (phy_id == PHY_ID_RTL8211FS) {
unsigned int val = 0;
miiphy_write(devname, phyaddr, 0x1F, 0xD08);
miiphy_read(devname, phyaddr,17,&val);
val |= bit(8);
miiphy_write(devname, phyaddr,17,val);
miiphy_write(devname, phyaddr, 0x1F, 0); //set to page 0
}

内核修改

linux-4.19.y\drivers\net\ethernet\vendor\gmac\gmac.h
linux-4.19.y\drivers\net\ethernet\vendor\gmac\util.c
static int rtl8211fs_phy_fix(struct phy_device *phy_dev)
{
u32 v;
// RX or TX delay
phy_write(phy_dev, 0x1F, 0xd08);
v = phy_read(phy_dev, 17);
v |= (1<<8);
phy_write(phy_dev, 17, v);

// change back to page0 
phy_write(phy_dev, 0x1F, 0);
return 0;

}

void gmac_phy_register_fixups(void)
{
phy_register_fixup_for_uid(PHY_ID_UNKNOWN, DEFAULT_PHY_MASK,
unknown_phy_fix);
phy_register_fixup_for_uid(PHY_ID_KSZ8051MNL, DEFAULT_PHY_MASK,
ksz8051mnl_phy_fix);
phy_register_fixup_for_uid(PHY_ID_KSZ8081RNB, DEFAULT_PHY_MASK,
ksz8081rnb_phy_fix);
phy_register_fixup_for_uid(REALTEK_PHY_ID_8211E, REALTEK_PHY_MASK,
rtl8211e_phy_fix);
phy_register_fixup_for_uid(REALTEK_PHY_ID_8211FS, REALTEK_PHY_MASK,
rtl8211fs_phy_fix);

}

void gmac_phy_unregister_fixups(void)
{
phy_unregister_fixup_for_uid(PHY_ID_UNKNOWN, DEFAULT_PHY_MASK);
phy_unregister_fixup_for_uid(PHY_ID_KSZ8051MNL, DEFAULT_PHY_MASK);
phy_unregister_fixup_for_uid(PHY_ID_KSZ8081RNB, DEFAULT_PHY_MASK);
phy_unregister_fixup_for_uid(REALTEK_PHY_ID_8211E, REALTEK_PHY_MASK);
phy_unregister_fixup_for_uid(REALTEK_PHY_ID_8211FS, REALTEK_PHY_MASK);
}

阿白回复 UncleRoderick 2023-05-11 15:24:07

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这个在下载阶段应该和内核没啥关系，易佰纳的板子是两个网口，所以ss928v100.h文件里面define CONFIG_GMAC_NUMS 2将这个宏改为了2，我现在的板子是1一个网口的，所以不用改，至于gmac.c里面的修改我也加了上去，用的网口芯片也是RTL8211F，但还是不管用。。。。。
/ PHY-RTL8211F by-3 /
if (phy_id == PHY_ID_RTL8211FS) {
unsigned int val = 0;
miiphy_write(devname, phyaddr, 0x1F, 0xD08);
miiphy_read(devname, phyaddr,17,&val);
val |= bit(8);
miiphy_write(devname, phyaddr,17,val);
miiphy_write(devname, phyaddr, 0x1F, 0); //set to page 0
}