x86: Support booting with TPL
Some boards want to use TPL as the first phase of U-Boot. This allows
selection of A or B SPL phases, thus allowing the memory init to be
upgraded in the field.
Add a new Kconfig option for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 185f0ef..45a5336 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -176,10 +176,17 @@
config SPL_X86_16BIT_INIT
bool
depends on X86_RESET_VECTOR
- default y if X86_RESET_VECTOR && SPL
+ default y if X86_RESET_VECTOR && SPL && !TPL
help
This is enabled when 16-bit init is in SPL
+config TPL_X86_16BIT_INIT
+ bool
+ depends on X86_RESET_VECTOR
+ default y if X86_RESET_VECTOR && TPL
+ help
+ This is enabled when 16-bit init is in TPL
+
config X86_32BIT_INIT
bool
depends on X86_RESET_VECTOR