diff options
| author | Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com> | 2020-07-15 22:49:08 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2020-07-29 10:37:11 -0400 |
| commit | 89bb20bd388007451014143c05e21c449b3f5d9e (patch) | |
| tree | bd2665e149f89234bae598d162f7e5de3b593a3a | |
| parent | e32a25e51220fbd1a8315ea2f407bccf0b5aa3ab (diff) | |
doc: add README doc for bcmns3 platform
Add README doc for bcmns3 platform.
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | doc/README.bcmns3 | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/doc/README.bcmns3 b/doc/README.bcmns3 new file mode 100644 index 0000000000..c51f91471f --- /dev/null +++ b/doc/README.bcmns3 @@ -0,0 +1,74 @@ +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 | + * | | + * ~ ~ + * ~ ~ + * | | + * |---------------------------| + */ |