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authorEric Biederman <ebiederm@xmission.com>2004-10-30 08:05:41 +0000
committerEric Biederman <ebiederm@xmission.com>2004-10-30 08:05:41 +0000
commitf8a2dddb573faef41ad43ee111d91d4c5259ad59 (patch)
tree3606ac56f585bce51868b8a5388bf9d0bb4561b9 /src/arch/i386/llshell/readme.linuxbios
parent0afcba7a3d0e7dc22818ecdfd79230f5fb987f0d (diff)
- To reduce confuse rename the parts of linuxbios bios that run from
ram linuxbios_ram instead of linuxbios_c and linuxbios_payload... - Reordered the linker sections so the LinuxBIOS fallback image can take more the 64KiB on x86 - ROM_IMAGE_SIZE now will work when it is specified as larger than 64KiB. - Tweaked the reset16.inc and reset16.lds to move the sanity check to see if everything will work. - Start using romcc's built in preprocessor (This will simplify header compiler checks) - Add helper functions for examining all of the resources - Remove debug strings from chip.h - Add llshell to src/arch/i386/llshell (Sometime later I can try it...) - Add the ability to catch exceptions on x86 - Add gdb_stub support to x86 - Removed old cpu options - Added an option so we can detect movnti support - Remove some duplicate definitions from pci_ids.h - Remove the 64bit resource code in amdk8/northbridge.c in preparation for making it generic - Minor romcc bug fixes git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1727 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/arch/i386/llshell/readme.linuxbios')
-rw-r--r--src/arch/i386/llshell/readme.linuxbios25
1 files changed, 25 insertions, 0 deletions
diff --git a/src/arch/i386/llshell/readme.linuxbios b/src/arch/i386/llshell/readme.linuxbios
new file mode 100644
index 0000000000..fb23d1a9d4
--- /dev/null
+++ b/src/arch/i386/llshell/readme.linuxbios
@@ -0,0 +1,25 @@
+
+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)
+ // intel_chip_post_macro(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.