New IP integration (AES)

[Inky-13]

I am currently trying to add an AES IP to this SoC. Is there any documentation on how to do this? Else, could I get some guidance as to where to start?

I am trying to use the IP from the OpenTitan's project would this be the easiest way to start doing this?

Any help would be appreciated.

[marnovandermaas]

You can add a device to this enum:

ibex-demo-system/rtl/system/ibex_demo_system.sv

Line 93 in a1201cf

} bus_device_e;

You should also add it to the memory address space like the UART:

ibex-demo-system/rtl/system/ibex_demo_system.sv

Lines 53 to 55 in a1201cf

	localparam logic [31:0] UART_SIZE = 4 * 1024; // 4 KiB
	localparam logic [31:0] UART_START = 32'h80001000;
	localparam logic [31:0] UART_MASK = ~(UART_SIZE-1);

You can use vendoring to vendor in the AES from OpenTitan, we already import some of them in this repo: https://github.com/lowRISC/ibex-demo-system/blob/main/vendor/lowrisc_ip.vendor.hjson
All of this will be a bit fiddly but you should be able to figure it out if you copy what you see in the rest of the repo. Once you've vendored things in you should be able to do everything else in ibex_demo_system.sv.