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| author | Wolfgang Denk <wd@denx.de> | 2008-02-14 22:43:22 +0100 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2008-02-14 22:43:22 +0100 |
| commit | e7670f6c1e52ae6d2a43ff75a8bcfa7a5c86e47b (patch) | |
| tree | c105ae64bb203f93e670ef11b3256a4a3086c0ad /cpu/mpc85xx/config.mk | |
| parent | 3c234efa693bc59906c2be55c7918ecbb55392ea (diff) | |
| download | blackbird-obmc-uboot-e7670f6c1e52ae6d2a43ff75a8bcfa7a5c86e47b.tar.gz blackbird-obmc-uboot-e7670f6c1e52ae6d2a43ff75a8bcfa7a5c86e47b.zip | |
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 <wd@denx.de>
Diffstat (limited to 'cpu/mpc85xx/config.mk')
| -rw-r--r-- | cpu/mpc85xx/config.mk | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/cpu/mpc85xx/config.mk b/cpu/mpc85xx/config.mk index 6121074349..f6df702e52 100644 --- a/cpu/mpc85xx/config.mk +++ b/cpu/mpc85xx/config.mk @@ -23,4 +23,5 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -PLATFORM_CPPFLAGS += -DCONFIG_MPC85xx -DCONFIG_E500 -ffixed-r2 -ffixed-r29 -Wa,-me500 -msoft-float -mno-string +PLATFORM_CPPFLAGS += -DCONFIG_MPC85xx -DCONFIG_E500 -ffixed-r2 \ + -Wa,-me500 -msoft-float -mno-string |
