18.104.22.168. RSU Image Sub-Partitions Layout
The RSU Image Sub-Partitions Layout table shows the layout of RSU image stored in QSPI flash.
If you anticipate changes to the factory image, you may consider reserving additional memory space. By default, the Intel® Quartus® Prime Programming File Generator reserves additional 256 kB of memory space for a factory image. To increase the partition size, update the End Address value in the Edit Partition dialog box window as described in the Generating the Initial RSU Image.
|Flash Offset||Size (in bytes)||Contents||Sub-Partition Name|
|0 K||256 K||Decision firmware||BOOT_INFO|
|256 K||256 K||Decision firmware|
|512 K||256 K||Decision firmware|
|768 K||256 K||Decision firmware|
|1 M||8 K + 24 K pad||Decision firmware data|
|1 M+32 K||32 K||Reserved for SDM|
|1 M+64 K||Varies||Factory image||FACTORY_IMAGE|
|Next||4 K + 28 K pad||Sub-partition table (copy 0)||SPT0|
|Next||4 K + 28 K pad||Sub-partition table (copy 1)||SPT1|
|Next||4 K + 28 K pad||Pointer block (copy 0)||CPB0|
|Next||4 K + 28 K pad||Pointer block (copy 1)||CPB1|
|Varies||Varies||Application image 1||You assign|
|Varies||Varies||Application image 2||You assign|
The Intel® Quartus® Prime Programming File Generator allows you to create many user partitions. These partitions can contain application images and other items such as the Second Stage Boot Loader (SSBL), Linux* kernel, or Linux* root file system.
When you create the initial flash image, you can create up to seven partitions for application images. There are no limitations on creating empty partitions.
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