Chip ID of JP5.0.2

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier
1

Hi,

Is there a way to check chip id of AGX with Jetpack 5.0.2?

/sys/module/tegra_fuse_parameters/tegra_chip_id of Jetpack 4.6 deos show chip id.

We need the chip id for production using.

Thank you,

3

hello HuiW,

is this what you’re looking for, i.e. $ cat /sys/firmware/devicetree/base/chosen/ids

4

Hi JerryChang,

Thank you for your prompt support.
We actully is looking for a ID as the following.
For example : AGX Xavier ID is 0x19

TEGRA210 – 0x21
TEGRA186 – 0x18
TEGRA194 – 0x19
TEGRA234 – 0x23

However, if JP5 does not provide the ID anymore, we will try the data you provided.
We do still expect the id of tegra_chip_id, if you have it.

Thank you,

5

hello HuiW,

actually, it’s present in the very beginning of kernel logs.
for example,

$ sudo dmesg
...
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x4e0f0040]
[    0.000000] Linux version 5.10.104-tegra (buildbrain@mobile-u64-5240-d7000) (aarch64-buildroot-linux-gnu-gcc.br_real
(Buildroot 2020.08) 9.3.0, GNU ld (GNU Binutils) 2.33.1) #1 SMP PREEMPT Sun Sep 18 20:15:57 PDT 2022
[    0.000000] Machine model: Jetson-AGX
6

Hi JerryChang,

Thank you for your prompt support.
It helps.

Thank you,

7

hello HuiW,

furthermore,
it’s kernel side check device tree nodes and report the machine model.
you may check the sysfs directly instead of checking kernel logs.
for example,

# cat /sys/firmware/devicetree/base/model
Jetson-AGX

here’s also compatible node to show complete device info, you’ll also see device-id here.
for example,

# cat /sys/firmware/devicetree/base/compatible
nvidia,galennvidia,jetson-xaviernvidia,p2822-0000+p2888-0001nvidia,tegra194
8

You may also try:

cat /sys/devices/soc0/soc_id

# or if you want the hex format:
SOC_ID=`printf "0x%x\n" $(cat /sys/devices/soc0/soc_id)`
echo $SOC_ID

# or
cat /sys/devices/soc1/soc_id | cut -d':' -f3
2 Likes
9

Hi JerryChang and Honey_Patouceul,

Thank you for your support.
The information you provided works.

Thanks,

11

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