the board.And then execute the bootloader from DDR.
Some usecases where this may be used:
- While developing some new feature of u-boot, for example USB driver or
- SPI driver.
- Suppose the board already has a working bootloader on it. And you would
- prefer to keep it intact, at the same time want to test your bootloader.
- In this case you can get your test bootloader binary into DDR via tftp
- for example. Then execute the test bootloader.
+ SPI driver.
+ Suppose the board already has a working bootloader on it. And you would
+ prefer to keep it intact, at the same time want to test your bootloader.
+ In this case you can get your test bootloader binary into DDR via tftp
+ for example. Then execute the test bootloader.
- Suppose a platform already has a propreitery bootloader which does not
support for example AMP boot. In this case also RAM boot loader can be
utilized.
This will finally use the CONFIG_SYS_RAMBOOT.
-3. File name-> arch/powerpc/include/asm/config_mpc85xx.h
- In the section of the particular SOC, for example P1020,
+3. Change CONFIG_SYS_CCSRBAR_DEFAULT in menuconfig accordingly.
+ In the section of the particular SOC, for example P1020, pseudo code
#if defined(CONFIG_GO)
#define CONFIG_SYS_CCSRBAR_DEFAULT 0xffe00000