Add SiFive Premier P550

Hardware/p550.md

@@ -0,0 +1,76 @@
+---
+riscv_hardware: true
+cmake_plat: p550
+xcompiler_arg: -DRISCV64=1
+platform: HiFive Premier P550
+arch: RV64GC
+virtualization: "No"
+iommu: "No"
+simulation_target: false
+Status: "Unverified"
+Contrib: "Community"
+Maintained: "seL4 Foundation"
+soc: ESWIN EIC7700X
+cpu: P550
+SPDX-License-Identifier: CC-BY-SA-4.0
+SPDX-FileCopyrightText: 2020 seL4 Project a Series of LF Projects, LLC.
+---
+
+# HiFive Premier P550
+
+The HiFive Premier P550 is a RISC-V development platform from SiFive based
+on the ESWIN EIC7700X SoC. It is a quad-core SoC using the SiFive P550
+CPU.
+
+Details and links to manuals can be found on the [SiFive product page]
+(https://www.sifive.com/boards/hifive-premier-p550).
+
+The SoC technical reference manual can be found [here]
+(https://github.com/eswincomputing/EIC7700X-SoC-Technical-Reference-Manual/releases).
+
+The P550 arrives with the following boot process from the SPI flash:
+
+1. Firmware starts
+2. OpenSBI starts
+3. U-Boot proper starts
+
+From U-Boot proper you can then load and start an seL4 image, see below for details.
+
+## Building the GCC toolchain
+
+{% include risc-v.md %}
+
+## Building seL4test
+
+{% include sel4test.md %}
+
+## Booting via microSD card
+
+These instructions expect the microSD card to be paritioned with FAT.
+
+The microSD card slot registers as device `1` in U-Boot so to see if the device
+is recognised run:
+```sh
+mmc dev 1
+# Check that the card info is expected
+mmc info
+# List partitions
+mmc part
+```
+
+To load and run the image:
+```sh
+fatload mmc 1:<PARTITION> 0x90000000 sel4test-driver-image-riscv-p550
+go 0x90000000
+```
+
+## Booting via TFTP
+
+If you have setup a TFTP server, enter the following commands on the U-Boot console
+to load an image via the network.
+
+```sh
+dhcp
+tftpboot 0x90000000 <YOUR_TFTP_SERVER_IP_ADDRESS>:sel4test-driver-image-riscv-p550
+go 0x90000000
+```