Document POST codes emitted by LinuxBIOSv2.

The list was created by Richard Smith <smithbone@gmail.com>, see
http://tracker.linuxbios.org/trac/LinuxBIOS/ticket/74.

It is probably not complete, yet.

(Closes #74)

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2569 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

diff --git a/documentation/POSTCODES b/documentation/POSTCODES
new file mode 100644 (file)
index 0000000..aa4f258
--- /dev/null
+++ b/documentation/POSTCODES
@@ -0,0 +1,26 @@
+-------------------------------------------------------------------------------
+LinuxBIOS POST Codes
+-------------------------------------------------------------------------------
+
+This is an (incomplete) list of POST codes emitted by LinuxBIOSv2.
+
+0x10 Entry into protected mode
+0x01 Entry into 'crt0.s' reset code jumps to here
+0x11 Start copying LinuxBIOS to RAM with decompression if compressed
+0x12 Copy/decompression finished jumping to RAM
+0x80 Entry into LinuxBIOS in RAM
+0x13 Entry into c_start
+0xfe Pre call to hardwaremain()
+0x39 Console is initialized
+0x40 Console boot message succeeded
+0x66 Devices have been enumerated
+0x88 Devices have been configured
+0x89 Devices have been enabled
+0xf8 Entry into elf boot
+0xf3 Jumping to payload
+
+Errors (used in several places):
+
+0xee Not supposed to get here
+0xff Elfload fail or die() called
+