| |
| 1) Include llshell.inc in your northbridge Config file |
| 2) In raminit.inc (or whatever), make a jmp out to low_level_shell, setting |
| a return label in %esp. |
| For example: |
| ram_set_registers: |
| |
| mov $llshell_ret1,%esp |
| jmp low_level_shell |
| llshell_ret1: |
| |
| /* Disable and invalidate the cache */ |
| invd |
| mov %cr0, %eax |
| .... |
| 3) Optionally, comment out two lines in ramtest.inc: |
| 5: |
| CONSOLE_INFO_TX_STRING($rt_toomany) |
| // post_code(0xf1) |
| // jmp .Lhlt |
| otherwise, a ramtest failure will hang |
| |
| 4) build and flash as normal |
| If it worked, the speaker will beep, and you'll get a shell. |
| Type help or ? at the prompt for a list of commands. |
