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Add README doc for bcmns3 platform. Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com> Reviewed-by: Simon Glass <sjg@chromium.org>
75 lines
2.4 KiB
Plaintext
75 lines
2.4 KiB
Plaintext
BCMNS3 QSPI memory layout
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=========================
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BCMNS3 has total 8MB non-volatile SPI flash memory. It is used to store
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different images like fip.bin, nitro firmware, DDR shmo value and other backup
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images.
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Following is the QSPI flash memory layout.
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/* QSPI layout
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* |---------------------------|->0x000000
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* | |
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* | |
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* | fip.bin |
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* | 2MB |
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* | |
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* ~ ~
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* ~ ~
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* | |
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* |---------------------------|->0x200000
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* | |
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* | |
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* | |
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* | fip.bin (Mirror) |
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* | 2MB |
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* ~ ~
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* ~ ~
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* | |
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* |---------------------------|->0x400000
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* | Nitro NS3 Config |
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* | 1.5M |
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* ~ ~
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* ~ ~
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* |---------------------------|->0x580000
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* | Nitro NS3 Config |
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* | 1.5M |
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* | (Mirror) |
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* ~ ~
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* ~ ~
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* |---------------------------|->0x700000
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* | Nitro NS3 bspd Config |
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* | 64KB |
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* ~ ~
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* ~ ~
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* |---------------------------|->0x710000
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* | Nitro NS3 bspd Config |
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* | 64KB |
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* ~ (Mirror) ~
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* ~ ~
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* |---------------------------|->0x720000
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* | SHMOO |
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* | 64KB |
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* ~ ~
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* ~ ~
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* |---------------------------|->0x730000
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* | Meta Data |
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* | 832KB |
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* | |
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* ~ ~
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* ~ ~
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* |---------------------------|
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*/
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