x86: Permit bootstage and timer data to be used prior to relocation
It is useful to be able to access the timer before U-Boot has relocated
so that we can fully support bootstage.
Add new global_data members to support this.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/interrupts.c b/arch/x86/cpu/interrupts.c
index dd30a05..6dc74e3 100644
--- a/arch/x86/cpu/interrupts.c
+++ b/arch/x86/cpu/interrupts.c
@@ -626,13 +626,12 @@
*/
u64 get_ticks(void)
{
- static u64 tick_base;
u64 now_tick = rdtsc();
- if (!tick_base)
- tick_base = now_tick;
+ if (!gd->arch.tsc_base)
+ gd->arch.tsc_base = now_tick;
- return now_tick - tick_base;
+ return now_tick - gd->arch.tsc_base;
}
#define PLATFORM_INFO_MSR 0xce