From e7670f6c1e52ae6d2a43ff75a8bcfa7a5c86e47b Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Thu, 14 Feb 2008 22:43:22 +0100 Subject: PPC: Use r2 instead of r29 as global data pointer R29 was an unlucky choice as with recent toolchains (gcc-4.2.x) gcc will refuse to use load/store multiple insns; instead, it issues a list of simple load/store instructions upon function entry and exit, resulting in bigger code size, which in turn makes the build for a few boards fail. Use r2 instead. Signed-off-by: Wolfgang Denk --- cpu/mpc5xx/config.mk | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'cpu/mpc5xx') diff --git a/cpu/mpc5xx/config.mk b/cpu/mpc5xx/config.mk index 64cd600..6d66c32 100644 --- a/cpu/mpc5xx/config.mk +++ b/cpu/mpc5xx/config.mk @@ -30,7 +30,7 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -PLATFORM_CPPFLAGS += -DCONFIG_5xx -ffixed-r2 -ffixed-r29 -mpowerpc -msoft-float +PLATFORM_CPPFLAGS += -DCONFIG_5xx -ffixed-r2 -mpowerpc -msoft-float # Use default linker script. Board port can override in board/*/config.mk LDSCRIPT := $(SRCTREE)/cpu/mpc5xx/u-boot.lds -- cgit v1.1