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Update kernel.md and flashing.md #2044

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Change Description

TM1 was deprecated since Tizen8.0.
Its guidance is not valid. To provide a correct guidance, Update the flashing.md and kernel.md.

  • Add U-boot build guidance
  • Update a kernel build guidance from TM1 to RPi4
  • Remove unlinked URL (wiki.tizen.orkg was shut-down.)

TM1 was deprecated since Tizen 8.0.
If someone wants to use TM1, it needs to use a lower version than Tizen
8.0.

Signed-off-by: Jaehoon Chung <[email protected]>
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Can one of the admins verify this patch?

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Can one of the admins verify this patch?

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Please checkout the webpage https://docs1.stg.tizen.org/staging/2044

```
/* To build u-boot */
$ make CROSS_COMPILE=/usr/bin/arm-linux-gnu- all

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as like below uboot.env part, "CROSS_COMPILE=arm-linux-gnu-" seems fine.

```
$ sudo ls
$ scripts/mkmodimg.sh
5. Created kernel, module and dtb file under output directory.

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s/file/files/

@@ -54,7 +97,7 @@ This section provides a brief overview of the typical booting sequence, starting

![Tizen bootup sequence](media/800px-boot-1.png)

The Tizen bootup process is the same as any other [Linux](https://wiki.tizen.org/Linux) kernel. Make sure that the correct machine ID and the boot arguments are passed from the boot loader.
The Tizen bootup process is the same as any other Linux kernel. Make sure that the correct machine ID and the boot arguments are passed from the boot loader.

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s/is the same as/is same as/

```

### Kernel

The kernel is the operating system that drives the platform. In this case, the kernel refers to the open-source [Linux](https://wiki.tizen.org/Linux) kernel that is customized for the Tizen platform. The following section gives a brief overview of the Tizen kernel setup, configuration, and the build procedure for building a Linux kernel for your Tizen platform. The output of the kernel binary is a uImage that is suitable only for a `u-boot` boot loader. If you have chosen a secure booting configuration in your boot loader, this uImage must be compatible with your boot loader.
The kernel is the operating system that drives the platform. In this case, the kernel refers to the open-source Linux kernel that is customized for the Tizen platform. The following section gives a brief overview of the Tizen kernel setup, configuration, and the build procedure for building a Linux kernel for your Tizen platform. The output of the kernel binary is a uImage that is suitable only for a `u-boot` boot loader. If you have chosen a secure booting configuration in your boot loader, this uImage must be compatible with your boot loader.

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as far as I know, in Tizen RPI4, uImage is not used. so you can just skip to explain about "uImage" .

Referenc target is changed from TM1 to RPi4.
- Add U-boot Build guidance
- Change a kernel build guidance from TM1 to RPi4
- Remove unlinked url (wiki.tizen.org)

Signed-off-by: Jaehoon Chung <[email protected]>
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3 participants