kernel: start working on 3.18 support

[openwrt/staging/chunkeey.git] / target / linux / generic / patches-3.18 / 320-ppc4xx_optimization.patch

diff --git a/target/linux/generic/patches-3.18/320-ppc4xx_optimization.patch b/target/linux/generic/patches-3.18/320-ppc4xx_optimization.patch
new file mode 100644 (file)
index 0000000..8673de4
--- /dev/null
+++ b/target/linux/generic/patches-3.18/320-ppc4xx_optimization.patch
@@ -0,0 +1,31 @@
+Upstream doesn't optimize the kernel and bootwrappers for ppc44x because
+they still want to support gcc 3.3 -- well, we don't.
+
+--- a/arch/powerpc/Makefile
++++ b/arch/powerpc/Makefile
+@@ -203,7 +203,8 @@ ifeq ($(CONFIG_FUNCTION_TRACER),y)
+ KBUILD_CFLAGS         += -mno-sched-epilog
+ endif
+ 
+-cpu-as-$(CONFIG_4xx)          += -Wa,-m405
++cpu-as-$(CONFIG_40x)          += -Wa,-m405
++cpu-as-$(CONFIG_44x)          += -Wa,-m440
+ cpu-as-$(CONFIG_ALTIVEC)      += -Wa,-maltivec
+ cpu-as-$(CONFIG_E200)         += -Wa,-me200
+ 
+--- a/arch/powerpc/boot/Makefile
++++ b/arch/powerpc/boot/Makefile
+@@ -45,10 +45,10 @@ BOOTCFLAGS += -I$(obj) -I$(srctree)/$(ob
+ DTC_FLAGS     ?= -p 1024
+ 
+ $(obj)/4xx.o: BOOTCFLAGS += -mcpu=405
+-$(obj)/ebony.o: BOOTCFLAGS += -mcpu=405
++$(obj)/ebony.o: BOOTCFLAGS += -mcpu=440
+ $(obj)/cuboot-hotfoot.o: BOOTCFLAGS += -mcpu=405
+-$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=405
+-$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405
++$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=440
++$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=440
+ $(obj)/cuboot-acadia.o: BOOTCFLAGS += -mcpu=405
+ $(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
+ $(obj)/treeboot-iss4xx.o: BOOTCFLAGS += -mcpu=405