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fix(risc): check device tree, avoid oom #4153

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fix(risc): check device tree, avoid oom #4153

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ccee81c
use updated device tree, avoid oom
pbraun9 Dec 31, 2024
c73aa6e
fix(riscv): minimize the changes
Dec 31, 2024
f2ac645
fix(risc): check for device tree
Jan 1, 2025
7bbe930
fix(risc): remove repetition
Jan 1, 2025
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17 changes: 12 additions & 5 deletions bare-metal/elastic-metal/reference-content/elastic-metal-rv1-guidelines.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -70,16 +70,23 @@ Linux kernel.
4. Build the Linux kernel.
```bash
cd linux/

# Make sure the required device tree is available in the default branch
ls -lhF arch/riscv/boot/dts/thead/th1520-lichee-cluster-4a-16g.dts
# Otherwise switch to another branch that has it
#git branch -a
#git switch ...

make revyos_defconfig
# This can take several hours.
make -j
make -j4
sudo make modules_install
cd ..
```
5. Build OpenSBI.
```bash
cd opensbi/
make PLATFORM=generic -j
make PLATFORM=generic -j4
cd ..
```
6. Build and install the FIT image.
Expand All @@ -89,8 +96,8 @@ Linux kernel.
# Build the device tree
cpp \
-nostdinc \
-I ../linux/arch/riscv/boot/dts/thead/ \
-I ../linux/include/ \
-I ../../linux/arch/riscv/boot/dts/thead/ \
-I ../../linux/include/ \
-undef \
-x assembler-with-cpp \
em-rv1-c4m16s128-a.dts \
Expand All @@ -100,7 +107,7 @@ Linux kernel.
sudo mv /boot/boot.itb /boot/boot.itb.bak
sudo mkimage -f em-rv1-c4m16s128-a-boot.its /boot/boot.itb

cd -
cd ../..
```
7. Reboot the server to load the new kernel.

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