Hi Vendor,
I used the command read nvcsi controller registers:
root@ubuntu:/home/nv# busybox devmem 0x15a00000
read value: 0xFFFFFFFF
but I get the following error, maybe the register is protected by security module?:
root@ubuntu:/home/nv# [ 605.084057] CPU:0, Error: cbb-fabric@0x13a00000, irq=25
[ 605.089456] **************************************
[ 605.094389] CPU:0, Error:cbb-fabric, Errmon:2
[ 605.098879] Error Code : FIREWALL_ERR
[ 605.103009]
[ 605.104545] Error Code : FIREWALL_ERR
[ 605.108676] MASTER_ID : CCPLEX
[ 605.112176] Address : 0x15a00000
[ 605.115860] Cache : 0x0 – Device Non-Bufferable
[ 605.121064] Protection : 0x2 – Unprivileged, Non-Secure, Data Access
[ 605.128053] Access_Type : Read
[ 605.131545] Access_ID : 0x15
[ 605.131549] Fabric : cbb-fabric
[ 605.138455] Slave_Id : 0x3
[ 605.141594] Burst_length : 0x0
[ 605.145093] Burst_type : 0x1
[ 605.148409] Beat_size : 0x2
[ 605.151633] VQC : 0x0
[ 605.154416] GRPSEC : 0x7e
[ 605.157473] FALCONSEC : 0x0
[ 605.160708] **************************************
[ 605.165765] WARNING: CPU: 0 PID: 0 at drivers/soc/tegra/cbb/tegra234-cbb.c:577 tegra234_cbb_isr+0x130/0x170
[ 605.176157] —[ end trace 6896084a2a4888d9 ]—