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docs: Remove redundant documentation about combined payload use case

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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 <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
This commit is contained in:
Atish Patra 2020-06-04 23:31:49 -07:00 • committed by Anup Patel
parent 79bfd67f9a
commit 106b888e20
1 changed files with 0 additions and 23 deletions

23
docs/platform/sifive_fu540.md
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@ -49,29 +49,6 @@ The detailed U-Boot booting guide is avaialble at [U-Boot].
make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=<u-boot_build_dir>/u-boot-dtb.bin
```
**U-Boot & Linux Kernel as a single payload**
A single monolithic image containing both U-Boot & Linux can also be used if
network boot setup is not available.
1. Create a temporary image with u-boot-dtb.bin as the first payload. The
command-line example here assumes that U-Boot was compiled using
sifive_fu540_defconfig configuration.
```
dd if=~/workspace/u-boot-riscv/u-boot-dtb.bin of=/tmp/temp.bin bs=1M
```
2. Append the Linux Kernel image.
```
dd if=<linux_build_directory>/arch/riscv/boot/Image of=/tmp/temp.bin bs=1M seek=4
```
3. Compile OpenSBI with temp.bin (generated in step 2) as payload.
```
make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=/tmp/temp.bin
or
(For U-Boot which follows Linux v5.2 (or higher) DT bindings)
make PLATFORM=sifive/fu540 FW_PAYLOAD_PATH=/tmp/temp.bin
```
Flashing the OpenSBI firmware binary to storage media:
------------------------------------------------------
The first stage boot loader ([FSBL]) expects the storage media to have a GPT