Commit 077e1958ca4afe12d88043b123ded058c51b89f7 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
Signed-off-by: Graeme Russ graeme.russ@gmail.com --- arch/i386/cpu/start16.S | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/i386/cpu/start16.S b/arch/i386/cpu/start16.S index 3e8b2cc..ebe5835 100644 --- a/arch/i386/cpu/start16.S +++ b/arch/i386/cpu/start16.S @@ -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