Hello,
I want to use rtl8822ce, but it was not detected.
I have some questions.
1.what’s the problem of ‘Phy link never came up’
these are my dtsi and logs
dmesg.txt (82.8 KB)
tegra234-p3768-0000-a0-pcie.dtsi.txt (1.8 KB)
Any log and which JetPack SW you used?
hi,jetpack is 5.12
and also ,I have tried to modify p3767.conf.common
ODMDATA=“gbe-uphy-config-9,hsstp-lane-map-3,hsio-uphy-config-0”;
log and dtsi I just updated,thanks
Which pcie controller are you using for this card?
pcie@141e0000 C7x1.
Do you have other PCIe card that can used to validated?
Sometimes specific PCIe WIFI card would need specific gpio to be enabled to make it work.
I have tested it with an oscilloscope and there is no clock waveform output,I think it It doesn’t work .and now I have no PCIe card to validate.
please follow this debug procedure.
Thank you for your suggestion,I am currently verifying it。
hi, how to dump PADCTL_PEX_CTL_PEX_L*_CLKREQ_N_0 and PADCTL_PEX_CTL_PEX_L*_RST_N_0 pinmux values,I don’t know the values
please search something like PADCTL_PEX_CTL_PEX_L1_RST_N_0 in the Orin TRM document and it will give you the offset.
Choose the one you are using.
hi wayne
I follow the Debug PCIe Link-Up Failure
Triaging from Software side:
1.lspci
0007:00:00.0 PCI bridge: NVIDIA Corporation Device 229a (rev a1)
2.lspci -vvv
LnkSta: Speed 2.5GT/s (downgraded), Width x1 (ok)
TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
3.busybox devmem 0x02437010
0x00000470
busybox devmem 0x02437018
0x00000420
busybox devmem 0x02437020
0x00000415
busybox devmem 0x02437020
0x00000415
4.busybox devmem 0x141e00d0
0x00001818
5. pcie@141e0000 {
compatible = “nvidia,tegra234-pcie\0snps,dw-pcie”;
power-domains = <0x02 0x10>;
reg = <0x00 0x141e0000 0x00 0x20000 0x00 0x3e000000 0x00 0x40000 0x00 0x3e040000 0x00 0x40000 0x00 0x3e080000 0x00 0x40000 0x32 0x30000000 0x00 0x10000000>;
reg-names = “appl\0config\0atu_dma\0dbi\0ecam”;
status = “okay”;
#address-cells = <0x03>;
#size-cells = <0x02>;
device_type = “pci”;
num-lanes = <0x01>;
num-viewport = <0x08>;
linux,pci-domain = <0x07>;
clocks = <0x02 0xab 0x02 0xf4>;
clock-names = “core\0core_m”;
resets = <0x02 0x0f 0x02 0x0e>;
reset-names = “apb\0core”;
interrupts = <0x00 0x162 0x04 0x00 0x163 0x04>;
interrupt-names = “intr\0msi”;
interconnects = <0x03 0x2a 0x03 0x30>;
interconnect-names = “dma-mem\0dma-mem”;
iommus = <0x56 0x08>;
iommu-map = <0x00 0x56 0x08 0x1000>;
msi-parent = <0x53 0x08>;
msi-map = <0x00 0x53 0x08 0x1000>;
dma-coherent;
iommu-map-mask = <0x00>;
#interrupt-cells = <0x01>;
interrupt-map-mask = <0x00 0x00 0x00 0x00>;
interrupt-map = <0x00 0x00 0x00 0x00 0x01 0x00 0x162 0x04>;
nvidia,dvfs-tbl = <0xc28cb00 0xc28cb00 0xc28cb00 0xc28cb00 0xc28cb00 0xc28cb00 0xc28cb00 0x27ac4000 0xc28cb00 0xc28cb00 0x27ac4000 0x5f5e1000 0xc28cb00 0x27ac4000 0x5f5e1000 0x7f22ff40>;
nvidia,max-speed = <0x04>;
nvidia,disable-aspm-states = <0x0f>;
nvidia,controller-id = <0x02 0x07>;
nvidia,tsa-config = <0x200b004>;
nvidia,disable-l1-cpm;
nvidia,aux-clk-freq = <0x13>;
nvidia,preset-init = <0x05>;
nvidia,aspm-cmrt = <0x3c>;
nvidia,aspm-pwr-on-t = <0x14>;
nvidia,aspm-l0s-entrance-latency = <0x03>;
nvidia,bpmp = <0x02 0x07>;
nvidia,aspm-cmrt-us = <0x3c>;
nvidia,aspm-pwr-on-t-us = <0x14>;
nvidia,aspm-l0s-entrance-latency-us = <0x03>;
bus-range = <0x00 0xff>;
ranges = <0x81000000 0x00 0x3e100000 0x00 0x3e100000 0x00 0x100000 0x82000000 0x00 0x40000000 0x32 0x28000000 0x00 0x8000000 0xc3000000 0x2e 0x40000000 0x2e 0x40000000 0x03 0xe8000000>;
nvidia,cfg-link-cap-l1sub = <0x1c4>;
nvidia,cap-pl16g-status = <0x174>;
nvidia,cap-pl16g-cap-off = <0x188>;
nvidia,event-cntr-ctrl = <0x1d8>;
nvidia,event-cntr-data = <0x1dc>;
nvidia,dl-feature-cap = <0x30c>;
nvidia,ptm-cap-off = <0x318>;
vddio-pex-ctl-supply = <0x4b>;
phys = <0x59>;
phy-names = “p2u-0”;
max-link-speed = <0x03>;
phandle = <0x2fb>;
nvidia,disable-power-down;
};
Orin-jetson_orin_hdmia03_0109-gpio-default -1.dtsi.txt (3.1 KB)
Orin-jetson_orin_hdmia03_0109-padvoltage-default -1.dtsi.txt (2.4 KB)
Orin-jetson_orin_hdmia03_0109-pinmux -1.dtsi.txt (65.8 KB)
Can you provide some more suggestions?
Thanks again
by the way
to 3. Dump PADCTL_PEX_CTL_PEX_L_CLKREQ_N_0 and PADCTL_PEX_CTL_PEX_L_RST_N_0 pinmux values and check if settings are correct.**
I set is
Should I dump PADCTL_PEX_CTL_PEX_L2_CLKREQ_N_0?
busybox devmem 0x02437030
0x00000021
busybox devmem 0x02437038
0x00000415
Please check if changing nvidia,max-speed = <0x04>; to 0x1 (gen1 only) would make it work or not.
I just tried to modify it, but it didn’t work
Please check with vendor if there is wl-disable gpio needed to be enabled.
vendor hasn’t replied yet
but our hardware engineer say
wl-disable gpio is pulled up by default,also it can be pulled down,I should pull down it?
please also make sure your C7 pinmux setting is as below
pex_l7_clkreq_n_pag0 {
nvidia,pins = "pex_l7_clkreq_n_pag0";
- nvidia,function = "rsvd1";
+ nvidia,function = "pe7";
nvidia,pull = <TEGRA_PIN_PULL_NONE>;
- nvidia,tristate = <TEGRA_PIN_ENABLE>;
+ nvidia,tristate = <TEGRA_PIN_DISABLE>;
nvidia,enable-input = <TEGRA_PIN_ENABLE>;
nvidia,io-high-voltage = <TEGRA_PIN_ENABLE>;
nvidia,lpdr = <TEGRA_PIN_DISABLE>;
pex_l7_rst_n_pag1 {
nvidia,pins = "pex_l7_rst_n_pag1";
- nvidia,function = "rsvd1";
+ nvidia,function = "pe7";
nvidia,pull = <TEGRA_PIN_PULL_NONE>;
- nvidia,tristate = <TEGRA_PIN_ENABLE>;
- nvidia,enable-input = <TEGRA_PIN_ENABLE>;
+ nvidia,tristate = <TEGRA_PIN_DISABLE>;
+ nvidia,enable-input = <TEGRA_PIN_DISABLE>;
nvidia,io-high-voltage = <TEGRA_PIN_ENABLE>;
nvidia,lpdr = <TEGRA_PIN_DISABLE>;
okay,thnaks
I have modified my C7 pinmux
nvidia,tristate = <TEGRA_PIN_ENABLE>; → nvidia,tristate = <TEGRA_PIN_DISABLE>;
nvidia,enable-input = <TEGRA_PIN_ENABLE>; → nvidia,enable-input = <TEGRA_PIN_DISABLE>;
Should I pull down wl-disable gpio?