
4.4.2. Detailed Quad SPI Flash Layout
4.4.2.1. RSU Sub-Partitions Layout
The Flash Sub-Partitions Layout table shows the layout of RSU flash images.
Table 40.
Flash Sub-Partitions Layout
Flash Offset
Size (in bytes)
Contents
Sub-Partition Name
0k
256k
Decision firmware
BOOT_INFO
256k
256k
Decision firmware
512k
256k
Decision firmware
768k
256k
Decision firmware
1M
8k + 24 pad
Decision firmware data
1M+32k
32k
Reserved for SDM
1M+64k
varies
Factory image
FACTORY_IMAGE
Next
4k + 28k pad
Sub-partition table (copy 0)
SPT0
Next
4k + 28k pad
Sub-partition table (copy 1)
SPT1
Next
4k + 28k pad
Pointer block (copy 0)
CPB0
Next
4k + 28k pad
Pointer block (copy 1)
CPB1
Next
varies
Application image 1
You assign
Next
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.
4.4.2.2. Sub-Partition Table Layout
The following table shows the structure of the sub-partition table. The Intel Quartus Prime software supports up to 126
partitions. Each sub-partition descriptor is 32 bytes.
4. Remote System Update (RSU)
UG-20205 | 2019.10.09
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Configuration User Guide
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