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doc: board: Convert README.qemu-riscv to reST Convert plain text documentation to reStructuredText format and add it to Sphinx TOC tree. No essential content change. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-07-18 07:34:16 +00:00
.. SPDX-License-Identifier: GPL-2.0+
.. Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
riscv: Add QEMU virt board support This adds QEMU RISC-V 'virt' board target support, with the hope of helping people easily test U-Boot on RISC-V. The QEMU virt machine models a generic RISC-V virtual machine with support for the VirtIO standard networking and block storage devices. It has CLINT, PLIC, 16550A UART devices in addition to VirtIO and it also uses device-tree to pass configuration information to guest software. It implements RISC-V privileged architecture spec v1.10. Both 32-bit and 64-bit builds are supported. Support is pretty much preliminary, only booting to U-Boot shell with the UART driver on a single core. Booting Linux is not supported yet. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
2018-09-26 13:55:21 +00:00
doc: board: Convert README.qemu-riscv to reST Convert plain text documentation to reStructuredText format and add it to Sphinx TOC tree. No essential content change. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-07-18 07:34:16 +00:00
QEMU RISC-V
===========
riscv: Add QEMU virt board support This adds QEMU RISC-V 'virt' board target support, with the hope of helping people easily test U-Boot on RISC-V. The QEMU virt machine models a generic RISC-V virtual machine with support for the VirtIO standard networking and block storage devices. It has CLINT, PLIC, 16550A UART devices in addition to VirtIO and it also uses device-tree to pass configuration information to guest software. It implements RISC-V privileged architecture spec v1.10. Both 32-bit and 64-bit builds are supported. Support is pretty much preliminary, only booting to U-Boot shell with the UART driver on a single core. Booting Linux is not supported yet. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
2018-09-26 13:55:21 +00:00
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
QEMU for RISC-V supports a special 'virt' machine and 'spike' machine designed
for emulation and virtualization purposes. This document describes how to run
U-Boot under it. Both 32-bit and 64-bit targets are supported, running in
either machine or supervisor mode.
riscv: Add QEMU virt board support This adds QEMU RISC-V 'virt' board target support, with the hope of helping people easily test U-Boot on RISC-V. The QEMU virt machine models a generic RISC-V virtual machine with support for the VirtIO standard networking and block storage devices. It has CLINT, PLIC, 16550A UART devices in addition to VirtIO and it also uses device-tree to pass configuration information to guest software. It implements RISC-V privileged architecture spec v1.10. Both 32-bit and 64-bit builds are supported. Support is pretty much preliminary, only booting to U-Boot shell with the UART driver on a single core. Booting Linux is not supported yet. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
2018-09-26 13:55:21 +00:00
The QEMU virt machine models a generic RISC-V virtual machine with support for
the VirtIO standard networking and block storage devices. It has CLINT, PLIC,
16550A UART devices in addition to VirtIO and it also uses device-tree to pass
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
configuration information to guest software. It implements the latest RISC-V
privileged architecture.
arm: riscv: qemu: Explain how to extract the generated dt QEMU currently generates a devicetree for use with U-Boot. Explain how to obtain it. Also explain how to merge it to produce a devicetree with the U-Boot features included. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-17 03:59:09 +00:00
See :doc:`../../develop/devicetree/dt_qemu` for information on how to see
the devicetree actually generated by QEMU.
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
The QEMU spike machine models a minimalistic RISC-V virtual machine with
only CLINT and HTIF devices. It also uses device-tree to pass configuration
information to guest software and implements the latest RISC-V privileged
architecture.
riscv: Add QEMU virt board support This adds QEMU RISC-V 'virt' board target support, with the hope of helping people easily test U-Boot on RISC-V. The QEMU virt machine models a generic RISC-V virtual machine with support for the VirtIO standard networking and block storage devices. It has CLINT, PLIC, 16550A UART devices in addition to VirtIO and it also uses device-tree to pass configuration information to guest software. It implements RISC-V privileged architecture spec v1.10. Both 32-bit and 64-bit builds are supported. Support is pretty much preliminary, only booting to U-Boot shell with the UART driver on a single core. Booting Linux is not supported yet. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
2018-09-26 13:55:21 +00:00
Building U-Boot
---------------
Set the CROSS_COMPILE environment variable as usual, and run:
doc: board: Convert README.qemu-riscv to reST Convert plain text documentation to reStructuredText format and add it to Sphinx TOC tree. No essential content change. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-07-18 07:34:16 +00:00
- For 32-bit RISC-V::
riscv: Add QEMU virt board support This adds QEMU RISC-V 'virt' board target support, with the hope of helping people easily test U-Boot on RISC-V. The QEMU virt machine models a generic RISC-V virtual machine with support for the VirtIO standard networking and block storage devices. It has CLINT, PLIC, 16550A UART devices in addition to VirtIO and it also uses device-tree to pass configuration information to guest software. It implements RISC-V privileged architecture spec v1.10. Both 32-bit and 64-bit builds are supported. Support is pretty much preliminary, only booting to U-Boot shell with the UART driver on a single core. Booting Linux is not supported yet. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
2018-09-26 13:55:21 +00:00
make qemu-riscv32_defconfig
make
doc: board: Convert README.qemu-riscv to reST Convert plain text documentation to reStructuredText format and add it to Sphinx TOC tree. No essential content change. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-07-18 07:34:16 +00:00
- For 64-bit RISC-V::
riscv: Add QEMU virt board support This adds QEMU RISC-V 'virt' board target support, with the hope of helping people easily test U-Boot on RISC-V. The QEMU virt machine models a generic RISC-V virtual machine with support for the VirtIO standard networking and block storage devices. It has CLINT, PLIC, 16550A UART devices in addition to VirtIO and it also uses device-tree to pass configuration information to guest software. It implements RISC-V privileged architecture spec v1.10. Both 32-bit and 64-bit builds are supported. Support is pretty much preliminary, only booting to U-Boot shell with the UART driver on a single core. Booting Linux is not supported yet. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
2018-09-26 13:55:21 +00:00
make qemu-riscv64_defconfig
make
doc: update QEMU RISC-V documentation The available defconfigs for RISC-V QEMU have changed. We now have configurations to compile U-Boot to run in supervisor mode and for U-Boot SPL. Update the QEMU RISC-V documentation to reflect these changes. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-21 19:14:50 +00:00
This will compile U-Boot for machine mode. To build supervisor mode binaries,
use the configurations qemu-riscv32_smode_defconfig and
qemu-riscv64_smode_defconfig instead. Note that U-Boot running in supervisor
mode requires a supervisor binary interface (SBI), such as RISC-V OpenSBI.
riscv: Add QEMU virt board support This adds QEMU RISC-V 'virt' board target support, with the hope of helping people easily test U-Boot on RISC-V. The QEMU virt machine models a generic RISC-V virtual machine with support for the VirtIO standard networking and block storage devices. It has CLINT, PLIC, 16550A UART devices in addition to VirtIO and it also uses device-tree to pass configuration information to guest software. It implements RISC-V privileged architecture spec v1.10. Both 32-bit and 64-bit builds are supported. Support is pretty much preliminary, only booting to U-Boot shell with the UART driver on a single core. Booting Linux is not supported yet. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
2018-09-26 13:55:21 +00:00
Running U-Boot
--------------
The minimal QEMU command line to get U-Boot up and running is:
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
- For 32-bit RISC-V virt machine::
doc: board: Convert README.qemu-riscv to reST Convert plain text documentation to reStructuredText format and add it to Sphinx TOC tree. No essential content change. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-07-18 07:34:16 +00:00
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
qemu-system-riscv32 -nographic -machine virt -bios u-boot.bin
riscv: Add QEMU virt board support This adds QEMU RISC-V 'virt' board target support, with the hope of helping people easily test U-Boot on RISC-V. The QEMU virt machine models a generic RISC-V virtual machine with support for the VirtIO standard networking and block storage devices. It has CLINT, PLIC, 16550A UART devices in addition to VirtIO and it also uses device-tree to pass configuration information to guest software. It implements RISC-V privileged architecture spec v1.10. Both 32-bit and 64-bit builds are supported. Support is pretty much preliminary, only booting to U-Boot shell with the UART driver on a single core. Booting Linux is not supported yet. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
2018-09-26 13:55:21 +00:00
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
- For 64-bit RISC-V virt machine::
qemu-system-riscv64 -nographic -machine virt -bios u-boot.bin
- For 64-bit RISC-V spike machine::
doc: board: Convert README.qemu-riscv to reST Convert plain text documentation to reStructuredText format and add it to Sphinx TOC tree. No essential content change. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-07-18 07:34:16 +00:00
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
qemu-system-riscv64 -nographic -machine spike -bios u-boot.bin
riscv: Add QEMU virt board support This adds QEMU RISC-V 'virt' board target support, with the hope of helping people easily test U-Boot on RISC-V. The QEMU virt machine models a generic RISC-V virtual machine with support for the VirtIO standard networking and block storage devices. It has CLINT, PLIC, 16550A UART devices in addition to VirtIO and it also uses device-tree to pass configuration information to guest software. It implements RISC-V privileged architecture spec v1.10. Both 32-bit and 64-bit builds are supported. Support is pretty much preliminary, only booting to U-Boot shell with the UART driver on a single core. Booting Linux is not supported yet. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
2018-09-26 13:55:21 +00:00
The commands above create targets with 128MiB memory by default.
A freely configurable amount of RAM can be created via the '-m'
parameter. For example, '-m 2G' creates 2GiB memory for the target,
and the memory node in the embedded DTB created by QEMU reflects
the new setting.
doc: update QEMU RISC-V documentation The available defconfigs for RISC-V QEMU have changed. We now have configurations to compile U-Boot to run in supervisor mode and for U-Boot SPL. Update the QEMU RISC-V documentation to reflect these changes. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-21 19:14:50 +00:00
For instructions on how to run U-Boot in supervisor mode on QEMU
with OpenSBI, see the documentation available with OpenSBI:
https://github.com/riscv/opensbi/blob/master/docs/platform/qemu_virt.md
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
https://github.com/riscv/opensbi/blob/master/docs/platform/spike.md
doc: update QEMU RISC-V documentation The available defconfigs for RISC-V QEMU have changed. We now have configurations to compile U-Boot to run in supervisor mode and for U-Boot SPL. Update the QEMU RISC-V documentation to reflect these changes. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-21 19:14:50 +00:00
doc: qemu-riscv: Update QEMU run command Explicitly pass the "-bios" option to QEMU to run U-Boot, instead of the "-kernel" option, as we know that "-bios" behavior will be changed since QEMU 5.1.0. This also updates validated QEMU version to 5.0.0. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-06-23 12:23:15 +00:00
These have been tested in QEMU 5.0.0.
doc: update QEMU RISC-V documentation The available defconfigs for RISC-V QEMU have changed. We now have configurations to compile U-Boot to run in supervisor mode and for U-Boot SPL. Update the QEMU RISC-V documentation to reflect these changes. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-21 19:14:50 +00:00
Running U-Boot SPL
------------------
In the default SPL configuration, U-Boot SPL starts in machine mode. U-Boot
proper and OpenSBI (FW_DYNAMIC firmware) are bundled as FIT image and made
available to U-Boot SPL. Both are then loaded by U-Boot SPL and the location
of U-Boot proper is passed to OpenSBI. After initialization, U-Boot proper is
started in supervisor mode by OpenSBI.
OpenSBI must be compiled before compiling U-Boot. Version 0.4 and higher is
supported by U-Boot. Clone the OpenSBI repository and run the following command.
.. code-block:: console
git clone https://github.com/riscv/opensbi.git
cd opensbi
doc: qemu-riscv: Fix opensbi build instructions Latest opensbi uses generic platform for Qemu. Update the build instructions. Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Rick Chen <rick@andestech.com>
2020-12-22 19:50:01 +00:00
make PLATFORM=generic
doc: update QEMU RISC-V documentation The available defconfigs for RISC-V QEMU have changed. We now have configurations to compile U-Boot to run in supervisor mode and for U-Boot SPL. Update the QEMU RISC-V documentation to reflect these changes. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-21 19:14:50 +00:00
See the OpenSBI documentation for full details:
https://github.com/riscv/opensbi/blob/master/docs/platform/qemu_virt.md
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
https://github.com/riscv/opensbi/blob/master/docs/platform/spike.md
doc: update QEMU RISC-V documentation The available defconfigs for RISC-V QEMU have changed. We now have configurations to compile U-Boot to run in supervisor mode and for U-Boot SPL. Update the QEMU RISC-V documentation to reflect these changes. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-21 19:14:50 +00:00
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
To make the FW_DYNAMIC binary (build/platform/generic/firmware/fw_dynamic.bin)
doc: update QEMU RISC-V documentation The available defconfigs for RISC-V QEMU have changed. We now have configurations to compile U-Boot to run in supervisor mode and for U-Boot SPL. Update the QEMU RISC-V documentation to reflect these changes. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-21 19:14:50 +00:00
available to U-Boot, either copy it into the U-Boot root directory or specify
its location with the OPENSBI environment variable. Afterwards, compile U-Boot
with the following commands.
- For 32-bit RISC-V::
make qemu-riscv32_spl_defconfig
make
- For 64-bit RISC-V::
make qemu-riscv64_spl_defconfig
make
The minimal QEMU commands to run U-Boot SPL in both 32-bit and 64-bit
configurations are:
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
- For 32-bit RISC-V virt machine::
doc: update QEMU RISC-V documentation The available defconfigs for RISC-V QEMU have changed. We now have configurations to compile U-Boot to run in supervisor mode and for U-Boot SPL. Update the QEMU RISC-V documentation to reflect these changes. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-21 19:14:50 +00:00
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
qemu-system-riscv32 -nographic -machine virt -bios spl/u-boot-spl.bin \
doc: update QEMU RISC-V documentation The available defconfigs for RISC-V QEMU have changed. We now have configurations to compile U-Boot to run in supervisor mode and for U-Boot SPL. Update the QEMU RISC-V documentation to reflect these changes. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-21 19:14:50 +00:00
-device loader,file=u-boot.itb,addr=0x80200000
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
- For 64-bit RISC-V virt machine::
qemu-system-riscv64 -nographic -machine virt -bios spl/u-boot-spl.bin \
-device loader,file=u-boot.itb,addr=0x80200000
- For 64-bit RISC-V spike machine::
doc: update QEMU RISC-V documentation The available defconfigs for RISC-V QEMU have changed. We now have configurations to compile U-Boot to run in supervisor mode and for U-Boot SPL. Update the QEMU RISC-V documentation to reflect these changes. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-21 19:14:50 +00:00
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
qemu-system-riscv64 -nographic -machine spike -bios spl/u-boot-spl.bin \
doc: update QEMU RISC-V documentation The available defconfigs for RISC-V QEMU have changed. We now have configurations to compile U-Boot to run in supervisor mode and for U-Boot SPL. Update the QEMU RISC-V documentation to reflect these changes. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-08-21 19:14:50 +00:00
-device loader,file=u-boot.itb,addr=0x80200000
doc: qemu-riscv: describe attaching a disk image How to add an emulated disk to QEMU may not be known to the user. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Bin Meng <bin.meng@windriver.com>
2020-11-04 11:59:13 +00:00
doc: qemu-riscv: Update documentation for QEMU spike machine We can now use same U-Boot images on both QEMU virt machine and QEMU spike machine so let's update the QEMU RISC-V documentation. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-01-27 06:11:10 +00:00
An attached disk can be emulated in RISC-V virt machine by adding::
doc: qemu-riscv: describe attaching a disk image How to add an emulated disk to QEMU may not be known to the user. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Bin Meng <bin.meng@windriver.com>
2020-11-04 11:59:13 +00:00
-device ich9-ahci,id=ahci \
-drive if=none,file=riscv64.img,format=raw,id=mydisk \
-device ide-hd,drive=mydisk,bus=ahci.0
You will have to run 'scsi scan' to use it.
doc: debug UART for RISC-V QEMU virt machine Provide settings for enabling the debug UART of the virt machine on RISC-V QEMU. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-04-05 14:14:27 +00:00
Debug UART
----------
The following settings provide a debug UART for the virt machine::
CONFIG_DEBUG_UART=y
CONFIG_DEBUG_UART_NS16550=y
CONFIG_DEBUG_UART_BASE=0x10000000
CONFIG_DEBUG_UART_CLOCK=3686400
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