1 files changed, 53 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.2/0018-MIPS-lantiq-enable-oprofile-support-on-lantiq-target.patch b/target/linux/lantiq/patches-3.2/0018-MIPS-lantiq-enable-oprofile-support-on-lantiq-target.patch
new file mode 100644
index 0000000000..7ab5ff76bd
--- /dev/null
+++ b/target/linux/lantiq/patches-3.2/0018-MIPS-lantiq-enable-oprofile-support-on-lantiq-target.patch
@@ -0,0 +1,53 @@
+From e0bd3f1b16fbce1f0f7900a0dd624f9dc8a47f78 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Wed, 24 Aug 2011 13:28:55 +0200
+Subject: [PATCH 18/70] MIPS: lantiq: enable oprofile support on lantiq
+ targets
+
+This patch sets the performance counters irq and HAVE_OPROFILE flag for Lantiq
+SoCs.
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ arch/mips/Kconfig      |    1 +
+ arch/mips/lantiq/irq.c |    5 +++++
+ 2 files changed, 6 insertions(+), 0 deletions(-)
+
+diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
+index d46f1da..c1ceadb 100644
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -226,6 +226,7 @@ config LANTIQ
+ 	select SWAP_IO_SPACE
+ 	select BOOT_RAW
+ 	select HAVE_CLK
++	select HAVE_OPROFILE
+ 	select MIPS_MACHINE
+ 
+ config LASAT
+diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
+index 17c057f..0b2ed87 100644
+--- a/arch/mips/lantiq/irq.c
++++ b/arch/mips/lantiq/irq.c
+@@ -40,6 +40,9 @@
+ 
+ #define MAX_EIU			6
+ 
++/* the performance counter */
++#define LTQ_PERF_IRQ		(INT_NUM_IM4_IRL0 + 31)
++
+ /* irqs generated by device attached to the EBU need to be acked in
+  * a special manner
+  */
+@@ -318,6 +321,8 @@ void __init arch_init_irq(void)
+ 	set_c0_status(IE_SW0 | IE_SW1 | IE_IRQ0 | IE_IRQ1 |
+ 		IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5);
+ #endif
++
++	cp0_perfcount_irq = LTQ_PERF_IRQ;
+ }
+ 
+ unsigned int __cpuinit get_c0_compare_int(void)
+-- 
+1.7.7.1
+