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docs/platform: Update QEMU platforms documentation

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Mostly reformating. Some minor edits.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
This commit is contained in:
Damien Le Moal
2019-01-24 00:56:44 +09:00
committed by Anup Patel
parent ecfd63025d
commit 84cd4b7cd0
2 changed files with 93 additions and 59 deletions
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60
docs/platform/qemu_sifive_u.md
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@@ -1,42 +1,52 @@
QEMU SiFive Unleashed Machine
=============================
QEMU SiFive Unleashed Machine Platform
======================================
The **QEMU SiFive Unleashed Machine** is an emulation of
SiFive Unleashed platform.
The **QEMU SiFive Unleashed Machine** is an emulation of the SiFive Unleashed
platform.
To build platform specific library and firmwares, provide
`PLATFORM=qemu/sifive_u` parameter to top-level make.
To build this platform specific library and firmwares, provide the
*PLATFORM=qemu/sifive_u* parameter to the top level `make` command line.
Platform Options
----------------
We don't have any platform specific options for this platform.
The *QEMU SiFive Unleashed Machine* platform does not have any platform specific
options.
Try on QEMU RISC-V 64bit
------------------------
Executing on QEMU RISC-V 64bit
------------------------------
**No Payload**
**No Payload Case**
*Build*:
Build:
```
make PLATFORM=qemu/virt
```
*Run*:
```
qemu-system-riscv64 -M sifive_u -m 256M -display none -serial stdio -kernel build/platform/qemu/sifive_u/firmware/fw_payload.elf
make PLATFORM=qemu/virt
```
**U-Boot Payload**
Run:
```
qemu-system-riscv64 -M sifive_u -m 256M -display none -serial stdio \
-kernel build/platform/qemu/sifive_u/firmware/fw_payload.elf
```
*Note*: We assume that U-Boot is compiled using `qemu-riscv64_smode_defconfig`.
**U-Boot as a Payload**
*Build*:
Note: the command line examples here assume that U-Boot was compiled using
the `qemu-riscv64_smode_defconfig` configuration.
Build:
```
make PLATFORM=qemu/virt FW_PAYLOAD_PATH=<uboot_build_directory>/u-boot.bin
make PLATFORM=qemu/virt FW_PAYLOAD_PATH=<uboot_build_directory>/u-boot.bin
```
*Run*:
Run:
```
qemu-system-riscv64 -M sifive_u -m 256M -display none -serial stdio \
-kernel build/platform/qemu/sifive_u/firmware/fw_payload.elf
```
or
```
qemu-system-riscv64 -M sifive_u -m 256M -display none -serial stdio \
-kernel build/platform/qemu/sifive_u/firmware/fw_jump.elf \
-device loader,file=<uboot_build_directory>/u-boot.bin,addr=0x80200000
```
qemu-system-riscv64 -M sifive_u -m 256M -display none -serial stdio -kernel build/platform/qemu/sifive_u/firmware/fw_payload.elf
or
qemu-system-riscv64 -M sifive_u -m 256M -display none -serial stdio -kernel build/platform/qemu/sifive_u/firmware/fw_jump.elf -device loader,file=<uboot_build_directory>/u-boot.bin,addr=0x80200000
```