opensbi.git/docs/platform, branch v0.8

platform: Add support for Shakti C-class SoC from IIT-M

2020-06-19T03:51:46Z

C-Class is a member of the SHAKTI family of processors from Indian Institute of Technology - Madras(IIT-M). It is an extremely configurable and commercial-grade 5-stage in-order core supporting the standard RV64GCSUN ISA extensions. https://gitlab.com/shaktiproject/cores/c-class/blob/master/README.md We add OpenSBI support for Shakti C-class SoC. Signed-off-by: Vijai Kumar K Reviewed-by: Anup Patel

docs: Remove redundant documentation about combined payload use case

2020-06-08T11:34:12Z

U-Boot now supports loading Linux kernel image via network and storage media. Thus, we don't need to use a combined payload containing both U-Boot & Linux kernel image to boot Linux from U-Boot prompt. Remove the old documentation. Signed-off-by: Atish Patra Reviewed-by: Anup Patel

docs: platform/generic: Add details about IPI and timer expectations

2020-05-07T04:14:44Z

The generic platform provides IPI and timer functionality based on DT node provided in the FDT passed by previous booting stage. This patch updates generic platform documentation about IPI and timer expectations. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Atish Patra

docs: platform/generic: Add details about stdout-path DT property

2020-05-07T04:14:16Z

The generic platform will try to select serial console based on the stdout-path DT property in /chosen DT node hence we document this. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Atish Patra

docs: Add missing links in platform.md

2020-05-04T04:40:41Z

The links to some of the platforms were missing in platform.md file hence this patch. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Alistair Francis

platform: Remove spike directory

2020-05-04T04:39:51Z

The OpenSBI generic platform works perfectly fine on the QEMU spike machine and Spike emulator so let's remove dedicated Spike platform from OpenSBI. All Spike platform related documentation in OpenSBI will now suggest using OpenSBI generic platform. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Alistair Francis

platform: Remove qemu/virt directory

2020-05-04T04:39:23Z

The OpenSBI generic platform works perfectly fine on the QEMU virt machine so let's remove dedicated QEMU virt machine platform from OpenSBI. All QEMU virt machine related documentation in OpenSBI will now suggest using OpenSBI generic platform. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Alistair Francis

platform: Add generic FDT based platform support

2020-05-01T05:03:05Z

We add generic FDT based platform support which provides platform specific functionality based on the FDT passed by previous booting stage. By default, the generic FDT platform makes following assumptions: 1. platform FW_TEXT_START is 0x80000000 2. platform features are default 3. platform stack size is default 4. platform has no quirks or work-arounds The above assumptions (except 1) can be overridden by adding special platform callbacks which will be called based on the FDT root node compatible string. By default, we compile OpenSBI generic platform as follows: $ make PLATFORM=generic For a non-standard FW_TEXT_START, we can compile OpenSBI generic platform as follows: $ make PLATFORM=generic FW_TEXT_START= Signed-off-by: Anup Patel Reviewed-by: Atish Patra

platform: Add Nuclei UX600 platform

2020-04-29T09:36:36Z

* Nuclei UX600 is a 64-bit RISC-V core developed by Nuclei System Technology, see https://nucleisys.com/product.php * The ISA is configurable in hardware on your demand Signed-off-by: Huaqi Fang <578567190@qq.com> Reviewed-by: Anup Patel Reviewed-by: Bin Meng

platform: Add OpenPiton platform support

2020-03-24T07:48:38Z

OpenPiton is a research platform from Princeton University [1]. "OpenPiton is the world's first open source, general purpose, multithreaded manycore processor. It is a tiled manycore framework scalable from one to 1/2 billion cores." Add OpenSBI support for OpenPiton. As it is based on ariane core, it reuses the platform code from arine project. [1]. https://github.com/PrincetonUniversity/openpiton Signed-off-by: Atish Patra Reviewed-by: Anup Patel