TS-7970 Onboard SPI Flash: Difference between revisions
From embeddedTS Manuals
(Created page with "This board includes 8MiB of SPI flash using a Micron N25Q064A13ESE40F. The CPU uses this for the initial boot to load u-boot, as well as the u-boot environment. In Linux thi...") |
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This board includes | This board includes 8 MiB of SPI flash using a Micron N25Q064A13ESE40F. The CPU uses this for the initial boot to load u-boot, as well as the u-boot environment. In Linux this is accessed with the /dev/mtdblock devices. | ||
{| class=wikitable | {| class=wikitable | ||
| Line 7: | Line 7: | ||
! Description | ! Description | ||
|- | |- | ||
| | | 0x000000-0x0003FF | ||
| | | 1 KB | ||
| Unused | | Unused | ||
|- | |- | ||
| | | 0x000400-0x0FFFFF | ||
| 0. | | 0.999 MiB | ||
| U- | | U-Boot | ||
|- | |- | ||
| 0x100000- | | 0x100000-0x101FFF | ||
| | | 8 KiB | ||
| U- | | U-Boot environment #1 | ||
|- | |- | ||
| 0x102000- | | 0x102000-0x17FFFF | ||
| | | 504 KiB | ||
| Unused | | Unused | ||
|- | |- | ||
| 0x180000- | | 0x180000-0x181FFF | ||
| | | 8 KiB | ||
| U- | | U-Boot environment #2 | ||
|- | |- | ||
| 0x182000- | | 0x182000-0x1FFFFF | ||
| | | 504 KiB | ||
| Unused | | Unused | ||
|- | |- | ||
| 0x200000-0x700000 | | 0x200000-0x700000 | ||
| | | 5 MiB | ||
| Unused | | Unused | ||
|} | |} | ||
Latest revision as of 14:13, 6 March 2019
This board includes 8 MiB of SPI flash using a Micron N25Q064A13ESE40F. The CPU uses this for the initial boot to load u-boot, as well as the u-boot environment. In Linux this is accessed with the /dev/mtdblock devices.
| Bytes | Size | Description |
|---|---|---|
| 0x000000-0x0003FF | 1 KB | Unused |
| 0x000400-0x0FFFFF | 0.999 MiB | U-Boot |
| 0x100000-0x101FFF | 8 KiB | U-Boot environment #1 |
| 0x102000-0x17FFFF | 504 KiB | Unused |
| 0x180000-0x181FFF | 8 KiB | U-Boot environment #2 |
| 0x182000-0x1FFFFF | 504 KiB | Unused |
| 0x200000-0x700000 | 5 MiB | Unused |