AM5726: kernel 5.10 and CCS cmemk

Ilan Ganor

Part Number: AM5726

I would like to add support for ko cmemk

I am building my kernel as such:

sudo make CROSS_COMPILE=~/ti-processor-sdk-linux-am57xx-evm-08_02_01_00/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-none-linux-gnueabihf- ARCH=arm

I noticed cmemk driver exists "outside" the kernel at :

./board-support/extra-drivers/

how to include it?

maybe I should get from another location?

over 1 year ago

0 Ilan Ganor over 1 year ago

Prodigy 180 points

ok I can now create the driver using:

sudo make cmem-mod CROSS_COMPILE=~/ti-processor-sdk-linux-am57xx-evm-08_02_01_00/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-none-linux-gnueabihf- ARCH=arm

my problem is that it creates only for kernel 4.X and I need for kernel 5.X , I think I can download the new drivers, please intruct where to download it from

0 Ilan Ganor over 1 year ago in reply to Ilan Ganor

Prodigy 180 points

when I try the precompiled one arriving with the SDK I get the following issue:

root@am57xx-evm:~# insmod -f cmemk.ko pools=1x30000,x500000 phys_start=0x0 phy

s_end=0x3000000

[79815.147430] CMEMK module: reference Linux version 5.10.100

[79815.155242] CMEMK Error: pools specified: must specify both phys_start and

phys_end, exiting...

insmod: ERROR: could not insert module cmemk.ko: Invalid parameters

root@am57xx-evm:~#

Looks like it is possible to initialized but to give parameters it needs some other syntax. Can you advise?

root@am57xx-evm:~# insmod -f cmemk.ko

[ 220.210784] cmemk: module_layout: kernel tainted.

[ 220.215545] Disabling lock debugging due to kernel taint

[ 220.220916] cmemk: loading out-of-tree module taints kernel.

[ 220.228088] CMEMK module: reference Linux version 5.10.100

[ 220.236022] no physical memory specified

[ 220.239990] cmemk initialized

+1 Josue Zamitiz-Ayala over 1 year ago in reply to Ilan Ganor

TI__Mastermind 31775 points

Hello Ilan,

Please see the Documentation and other threads for guidance:

Best,

Josue

Processors

Processors forum

AM5726: kernel 5.10 and CCS cmemk