patch-2.4.22 linux-2.4.22/include/asm-sh/delay.h

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diff -urN linux-2.4.21/include/asm-sh/delay.h linux-2.4.22/include/asm-sh/delay.h
@@ -10,6 +10,7 @@
 extern void __bad_udelay(void);
 
 extern void __udelay(unsigned long usecs);
+extern void __ndelay(unsigned long nsecs);
 extern void __const_udelay(unsigned long usecs);
 extern void __delay(unsigned long loops);
 
@@ -17,4 +18,8 @@
 	((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \
 	__udelay(n))
 
+#define ndelay(n) (__builtin_constant_p(n) ? \
+        ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
+        __ndelay(n))
+
 #endif /* __ASM_SH_DELAY_H */

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