x86: Re-enable PCAT timer 2 for beeping

While we don't want PCAT timers for timing, we want timer 2 so that we can
still make a beep. Re-purpose the PCAT driver for this, and enable it in
coreboot.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/arch/x86/lib/tsc_timer.c b/arch/x86/lib/tsc_timer.c
index d931e5f..c509801 100644
--- a/arch/x86/lib/tsc_timer.c
+++ b/arch/x86/lib/tsc_timer.c
@@ -98,6 +98,10 @@ void __udelay(unsigned long usec)
 
 int timer_init(void)
 {
-	/* Nothing to do here - the timer needs no init */
+#ifdef CONFIG_SYS_PCAT_TIMER
+	/* Set up the PCAT timer if required */
+	pcat_timer_init();
+#endif
+
 	return 0;
 }