x86: Make show_boot_progress() common
This function can probably be used on all x86 boards, so move it into the
common file.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c
index 97c77ba..b391b7a 100644
--- a/arch/x86/cpu/cpu.c
+++ b/arch/x86/cpu/cpu.c
@@ -25,6 +25,7 @@
#include <malloc.h>
#include <asm/control_regs.h>
#include <asm/cpu.h>
+#include <asm/post.h>
#include <asm/processor.h>
#include <asm/processor-flags.h>
#include <asm/interrupt.h>
@@ -567,3 +568,26 @@
return -EFAULT;
}
+
+void show_boot_progress(int val)
+{
+#if MIN_PORT80_KCLOCKS_DELAY
+ /*
+ * Scale the time counter reading to avoid using 64 bit arithmetics.
+ * Can't use get_timer() here becuase it could be not yet
+ * initialized or even implemented.
+ */
+ if (!gd->arch.tsc_prev) {
+ gd->arch.tsc_base_kclocks = rdtsc() / 1000;
+ gd->arch.tsc_prev = 0;
+ } else {
+ uint32_t now;
+
+ do {
+ now = rdtsc() / 1000 - gd->arch.tsc_base_kclocks;
+ } while (now < (gd->arch.tsc_prev + MIN_PORT80_KCLOCKS_DELAY));
+ gd->arch.tsc_prev = now;
+ }
+#endif
+ outb(val, POST_PORT);
+}