diff --git a/libc/kernel/arch-sh/asm/heartbeat.h b/libc/kernel/arch-sh/asm/heartbeat.h
new file mode 100644
index 0000000..cbcfef1
--- /dev/null
+++ b/libc/kernel/arch-sh/asm/heartbeat.h
@@ -0,0 +1,28 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef __ASM_SH_HEARTBEAT_H
+#define __ASM_SH_HEARTBEAT_H
+
+#include <linux/timer.h>
+
+#define HEARTBEAT_INVERTED (1 << 0)
+
+struct heartbeat_data {
+ void __iomem *base;
+ unsigned char *bit_pos;
+ unsigned int nr_bits;
+ struct timer_list timer;
+ unsigned int regsize;
+ unsigned long flags;
+};
+
+#endif