1 files changed, 45 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches/902-mips_clocksource_init_war.patch b/target/linux/ar71xx/patches/902-mips_clocksource_init_war.patch
new file mode 100644
index 000000000..0f1bc95ad
--- /dev/null
+++ b/target/linux/ar71xx/patches/902-mips_clocksource_init_war.patch
@@ -0,0 +1,45 @@
+--- a/include/asm-mips/hazards.h
++++ b/include/asm-mips/hazards.h
+@@ -64,7 +64,7 @@
+ 	_ehb
+ 	)
+ ASMMACRO(back_to_back_c0_hazard,
+-	 _ehb
++	 _ssnop; _ssnop; _ssnop; _ehb
+ 	)
+ /*
+  * gcc has a tradition of misscompiling the previous construct using the
+--- a/arch/mips/kernel/cevt-r4k.c
++++ b/arch/mips/kernel/cevt-r4k.c
+@@ -187,7 +187,7 @@
+ 	 */
+ 	if (c0_compare_int_pending()) {
+ 		write_c0_compare(read_c0_count());
+-		irq_disable_hazard();
++		back_to_back_c0_hazard();		
+ 		if (c0_compare_int_pending())
+ 			return 0;
+ 	}
+@@ -196,7 +196,7 @@
+ 		cnt = read_c0_count();
+ 		cnt += delta;
+ 		write_c0_compare(cnt);
+-		irq_disable_hazard();
++		back_to_back_c0_hazard();		
+ 		if ((int)(read_c0_count() - cnt) < 0)
+ 		    break;
+ 		/* increase delta if the timer was already expired */
+@@ -205,11 +205,12 @@
+ 	while ((int)(read_c0_count() - cnt) <= 0)
+ 		;	/* Wait for expiry  */
+ 
++	back_to_back_c0_hazard();
+ 	if (!c0_compare_int_pending())
+ 		return 0;
+ 
+ 	write_c0_compare(read_c0_count());
+-	irq_disable_hazard();
++	back_to_back_c0_hazard();		
+ 	if (c0_compare_int_pending())
+ 		return 0;
+