mirror of
https://github.com/Fishwaldo/u-boot.git
synced 2025-03-20 22:21:41 +00:00
Revert "x86: use invd instead of wbinvd in real mode start code"
This reverts commit 0d67fac29f
.
As real hardware testing (*) shows the above mentioned commit
breaks U-Boot on it. Revert for the upcoming release. We may get
more information in the future and optimize the code accordingly.
(*) on Intel Edison board.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: fix a typo in the commit message]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
parent
38a2a48cd9
commit
fa97ca161b
2 changed files with 2 additions and 2 deletions
|
@ -50,7 +50,7 @@ _x86boot_start:
|
||||||
movl %cr0, %eax
|
movl %cr0, %eax
|
||||||
orl $(X86_CR0_NW | X86_CR0_CD), %eax
|
orl $(X86_CR0_NW | X86_CR0_CD), %eax
|
||||||
movl %eax, %cr0
|
movl %eax, %cr0
|
||||||
invd
|
wbinvd
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Zero the BIST (Built-In Self Test) value since we don't have it.
|
* Zero the BIST (Built-In Self Test) value since we don't have it.
|
||||||
|
|
|
@ -28,7 +28,7 @@ start16:
|
||||||
movl %cr0, %eax
|
movl %cr0, %eax
|
||||||
orl $(X86_CR0_NW | X86_CR0_CD), %eax
|
orl $(X86_CR0_NW | X86_CR0_CD), %eax
|
||||||
movl %eax, %cr0
|
movl %eax, %cr0
|
||||||
invd
|
wbinvd
|
||||||
|
|
||||||
/* load the temporary Global Descriptor Table */
|
/* load the temporary Global Descriptor Table */
|
||||||
data32 cs lidt idt_ptr
|
data32 cs lidt idt_ptr
|
||||||
|
|
Loading…
Add table
Reference in a new issue