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Import U-Boot v2026.07 (unmodified upstream source, base for rtwo patches)

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snlavaise
2026-09-16 23:15:56 -03:00
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doc/README.bcmns3
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BCMNS3 QSPI memory layout
=========================
BCMNS3 has total 8MB non-volatile SPI flash memory. It is used to store
different images like fip.bin, nitro firmware, DDR shmo value and other backup
images.
Following is the QSPI flash memory layout.
/* QSPI layout
* |---------------------------|->0x000000
* | |
* | |
* | fip.bin |
* | 2MB |
* | |
* ~ ~
* ~ ~
* | |
* | |
* | |
* |---------------------------|->0x200000
* | |
* | |
* | |
* | fip.bin (Mirror) |
* | 2MB |
* ~ ~
* ~ ~
* | |
* | |
* | |
* |---------------------------|->0x400000
* | |
* | Nitro NS3 Config |
* | 1.5M |
* | |
* ~ ~
* ~ ~
* | |
* |---------------------------|->0x580000
* | Nitro NS3 Config |
* | 1.5M |
* | (Mirror) |
* ~ ~
* ~ ~
* | |
* |---------------------------|->0x700000
* | Nitro NS3 bspd Config |
* | 64KB |
* ~ ~
* ~ ~
* | |
* |---------------------------|->0x710000
* | Nitro NS3 bspd Config |
* | 64KB |
* ~ (Mirror) ~
* ~ ~
* | |
* |---------------------------|->0x720000
* | SHMOO |
* | 64KB |
* | |
* ~ ~
* ~ ~
* |---------------------------|->0x730000
* | Meta Data |
* | 832KB |
* | |
* ~ ~
* ~ ~
* | |
* |---------------------------|
*/