| Message ID | 1412948960-11941-4-git-send-email-sjg@chromium.org |
|---|---|
| State | Accepted |
| Delegated to: | Simon Glass |
| Headers | show |
On 10 October 2014 07:49, Simon Glass <sjg@chromium.org> wrote: > To permit information to be passed from the early U-Boot code to > board_init_f() we cannot zero the global_data in board_init_f(). Instead > zero it in the start-up code. > > Signed-off-by: Simon Glass <sjg@chromium.org> > --- > > arch/x86/cpu/start.S | 6 ++++++ > 1 file changed, 6 insertions(+) > Applied to u-boot-dm/master
diff --git a/arch/x86/cpu/start.S b/arch/x86/cpu/start.S index 329bb3a..71cab22 100644 --- a/arch/x86/cpu/start.S +++ b/arch/x86/cpu/start.S @@ -85,6 +85,12 @@ car_init_ret: /* Align global data to 16-byte boundary */ andl $0xfffffff0, %esp + /* Zero the global data since it won't happen later */ + xorl %eax, %eax + movl $GENERATED_GBL_DATA_SIZE, %ecx + movl %esp, %edi + rep stosb + /* Setup first parameter to setup_gdt */ movl %esp, %eax
To permit information to be passed from the early U-Boot code to board_init_f() we cannot zero the global_data in board_init_f(). Instead zero it in the start-up code. Signed-off-by: Simon Glass <sjg@chromium.org> --- arch/x86/cpu/start.S | 6 ++++++ 1 file changed, 6 insertions(+)