MCU-PLUS-SDK-AM243X: Can MCU1_0 (r5f core) access the PCIe control registers?

Hideomi Hanaoka

Part Number: MCU-PLUS-SDK-AM243X

I understand MPU1_0 (a53 core) Linux can control the PCIe EP(End Point).

But I want to use MCU1_0 (r5f core) on AM64x for this purpose.

... AM64x AM243x TRM(Technical Reference Manual), spruim2c.pdf ...

2.1 Main Domain Memory Map

----> found names 'PCIE0_CORE_ECC_AGGR0', 'PCIE0_CORE_DBN_CFG_PCIE_CORE', 'PCIE0_DAT0', ...

2.2 MCU Domain Memory Map

----> not found name concerned with PCIe...

Can MCU1_0 (r5f core) access the PCIe control registers directly?

0 Dominic Rath over 4 years ago

Hi,

I'm not TI, so you might want to wait for an official reply, but here's what I know:

- the MCU1_0 (actually all the R5f cores) in the AM64x are in the main domain. The MCU domain is only the M4 core.

- Yes, MCU1_0 can access the PCIe controller registers

- As far as I know there is no software support from TI (yet). Someone from TI might know more about that.

Regards,

Dominic

0 Hideomi Hanaoka over 4 years ago in reply to Dominic Rath

Thanks, I understood R5f cores are in the main domain.

I will close this thread.

Regards, :-)

0 Prasad Jondhale over 4 years ago in reply to Dominic Rath

Hi Dominic,

Thanks for your kind reply.

All your replies are correct. MCU1_o can access PCIE. As you said we don't support PCIE in our SDK yet.

Regards,

Prasad

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