arm-trusted-firmware/docs/plat/xilinx-versal-net.rst
Akshay Belsare 30e8bc365c feat(versal-net): add jtag dcc support
Add support for JTAG Debug Communication Channel(DCC), using the dcc
console driver, for Versal NET platform.
UART0/UART1 is not configured when the JTAG DCC is used as console for
the platform.
Though DCC is not using any UART, VERSAL_NET_UART_BASE needs
to be defined in the platform code. If its not defined, build errors
are observed.
Now VERSAL_NET_UART_BASE by default points to UART0 base.
Check for valid console(pl011, pl011_0, pl011_1, dcc) is
being done in the platform makefile, the error condition in
setting the value of VERSAL_NET_UART_BASE is redundant, thus the error
message is removed from the code.

Change-Id: I1085433055abea13526230cff4d4183ff7a01477
Signed-off-by: Akshay Belsare <akshay.belsare@amd.com>
2023-02-01 10:34:01 +05:30

37 lines
1.4 KiB
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Xilinx Versal NET
=================
Trusted Firmware-A implements the EL3 firmware layer for Xilinx Versal NET.
The platform only uses the runtime part of TF-A as Xilinx Versal NET already
has a BootROM (BL1) and PMC FW (BL2).
BL31 is TF-A.
BL32 is an optional Secure Payload.
BL33 is the non-secure world software (U-Boot, Linux etc).
To build:
```bash
make RESET_TO_BL31=1 CROSS_COMPILE=aarch64-none-elf- PLAT=versal_net bl31
```
To build TF-A for JTAG DCC console:
```bash
make RESET_TO_BL31=1 CROSS_COMPILE=aarch64-none-elf- PLAT=versal_net VERSAL_NET_CONSOLE=dcc bl31
```
Xilinx Versal NET platform specific build options
-------------------------------------------------
* `VERSAL_NET_ATF_MEM_BASE`: Specifies the base address of the bl31 binary.
* `VERSAL_NET_ATF_MEM_SIZE`: Specifies the size of the memory region of the bl31 binary.
* `VERSAL_NET_BL32_MEM_BASE`: Specifies the base address of the bl32 binary.
* `VERSAL_NET_BL32_MEM_SIZE`: Specifies the size of the memory region of the bl32 binary.
* `VERSAL_NET_CONSOLE`: Select the console driver. Options:
- `pl011`, `pl011_0`: ARM pl011 UART 0 (default)
- `pl011_1` : ARM pl011 UART 1
- `dcc` : JTAG Debug Communication Channel(DCC)
* `TFA_NO_PM` : Platform Management support.
- 0 : Enable Platform Management (Default)
- 1 : Disable Platform Management