Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-11 07:34:31 +00:00
Code Issues Projects Releases Packages Wiki Activity

x86: Fix x86 Cold Boot

Browse source 
Commit 077e1958ca broke the ability of the
x86 port to boot from a cold-reset by removing the initial IDT. Re-
instate the initial IDT to allow cold-booting of x86 boards
This commit is contained in:
Graeme Russ 2010-08-22 16:25:59 +10:00
parent a806ee6fae
commit 797960fda1
1 changed files with 5 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
arch/i386/cpu/start16.S
View file

@ -45,6 +45,7 @@ board_init16_ret:
wbinvd
/* load the temporary Global Descriptor Table */
o32 cs lidt idt_ptr
o32 cs lgdt gdt_ptr
/* Now, we enter protected mode */
@ -68,6 +69,10 @@ code32start:
.long _start /* offset */
.word 0x10 /* segment */
idt_ptr:
.word 0 /* limit */
.long 0 /* base */
/*
* The following Global Descriptor Table is just enough to get us into
* 'Flat Protected Mode' - It will be discarded as soon as the final