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README.md: Update setup and build instructions #35

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Jan 8, 2024
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README.md: Update setup and build instructions #35

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40 changes: 8 additions & 32 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,7 @@ sudo apt install -y \
bison flex libssl-dev \
bc u-boot-tools swig python3-pyelftools
sudo apt install --fix-broken
pip3 install toml-cli
sudo pip3 install toml-cli
```

## Usage
Expand All @@ -67,18 +67,14 @@ Each successful build is placed in `build/` directory. Logs for each build are
placed in the `logs/` directory.

For example, the following command builds a Bookworm Debian image for am62xx-evm
machine, where the BSP version is 09.00.00.006.
machine, where the BSP version is 09.01.00.008.

```bash
sudo ./build.sh am62x_bookworm-no-km_09.00.00.006
sudo ./build.sh am62-bookworm-09.01.00.008
```

**NOTE:** If you are building on the target platform which is already running Debian,
then you can use the config without `-no-km`. This will give you an image which
already has the out of tree kernel modules installed.

The output will be generated at `build/`. The log file will be
`logs/am62x_bookworm-no-km_09.00.00.006.log`.
`logs/am62-bookworm-09.01.00.008.log`.

## Flashing Image to SD Card

Expand All @@ -89,33 +85,13 @@ Syntax:
sudo ./create-sdcard.sh <build>
```

Continuing the example above, if you built `am62x_bookworm-no-km_09.00.00.006`, type:

```bash
sudo ./create-sdcard.sh am62x_bookworm-no-km_09.00.00.006
```

This command will flash `am62x_bookworm-no-km_09.00.00.006` image to the SD card.

## Post-Build:

Following the above, you should have a basic Debian system set up. However, this
system does not yet contain any out-of-tree kernel modules. Therefore they need
to be installed after booting in.

At the very least, you should install the `ti-img-rogue-driver` to enable
GPU. Use the following command:
Continuing the example above, if you built `am62-bookworm-09.01.00.008`, type:

```bash
apt install ti-img-rogue-driver
sudo ./create-sdcard.sh am62-bookworm-09.01.00.008
```

To load the driver, reboot.
This command will flash `am62-bookworm-09.01.00.008` image to the SD card.

Once rebooted, the driver should work. To verify that it is loaded, type:
Following the above, you should have a basic Debian system set up.

```bash
lsmod | grep pvr
```
If you see output of pvrsrvkm driver, it means that the driver has loaded
correctly.