| .. SPDX-License-Identifier: GPL-2.0+ |
| |
| IBex AST2700 |
| ============ |
| |
| AST2700 integrates an IBex RISC-V 32-bits CPU as the boot MCU to execute the |
| first stage bootlaoder, namely SPL. |
| |
| Build |
| ----- |
| |
| 1. Prepare the toolchains and make sure the $PATH to toolchains is correct. |
| 2. Use `make ibex-ast2700_defconfig` in u-boot root to build the image |
| |
| Running U-Boot SPL |
| ------------------ |
| |
| The U-Boot SPL will boot in M mode and load the FIT image which includes |
| the 2nd stage bootloaders executed by the main processor Cortex-A35. |
| |
| |
| Burn U-Boot to SPI Flash |
| ------------------------ |
| |
| Use SPI flash programmer (e.g. SF100) to program the u-book-spl.bin with the |
| offset 0x80 bytes to the SPI flash beginning. |