[octeon] add 2.6.34 support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22452 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/octeon/patches-2.6.34/003-sched_clock_no_gcc44x_inline.patch

@@ -0,0 +1,40 @@
+When building with a toolchain that is configured to produce 32-bits executable
+by default, we will produce __lshrti3 in sched_clock() which is never resolved
+so the kernel fails to link. Unconditionally use the inline assemble version
+as suggested by David Daney, which works around the issue.
+
+CC: David Daney <ddaney@caviumnetworks.com>
+Signed-off-by: Florian Fainelli <florian@openwrt.org>
+---
+ arch/mips/cavium-octeon/csrc-octeon.c |    8 --------
+ 1 files changed, 0 insertions(+), 8 deletions(-)
+
+diff --git a/arch/mips/cavium-octeon/csrc-octeon.c b/arch/mips/cavium-octeon/csrc-octeon.c
+index 0bf4bbe..36400d2 100644
+--- a/arch/mips/cavium-octeon/csrc-octeon.c
++++ b/arch/mips/cavium-octeon/csrc-octeon.c
+@@ -53,7 +53,6 @@ static struct clocksource clocksource_mips = {
+ unsigned long long notrace sched_clock(void)
+ {
+ 	/* 64-bit arithmatic can overflow, so use 128-bit.  */
+-#if (__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ <= 3))
+ 	u64 t1, t2, t3;
+ 	unsigned long long rv;
+ 	u64 mult = clocksource_mips.mult;
+@@ -73,13 +72,6 @@ unsigned long long notrace sched_clock(void)
+ 		: [cnt] "r" (cnt), [mult] "r" (mult), [shift] "r" (shift)
+ 		: "hi", "lo");
+ 	return rv;
+-#else
+-	/* GCC > 4.3 do it the easy way.  */
+-	unsigned int __attribute__((mode(TI))) t;
+-	t = read_c0_cvmcount();
+-	t = t * clocksource_mips.mult;
+-	return (unsigned long long)(t >> clocksource_mips.shift);
+-#endif
+ }
+ 
+ void __init plat_time_init(void)
+-- 
+1.7.1
+