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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 /include/asm-ppc | |
| parent | 3c234efa693bc59906c2be55c7918ecbb55392ea (diff) | |
| download | u-boot-imx-e7670f6c1e52ae6d2a43ff75a8bcfa7a5c86e47b.zip u-boot-imx-e7670f6c1e52ae6d2a43ff75a8bcfa7a5c86e47b.tar.gz u-boot-imx-e7670f6c1e52ae6d2a43ff75a8bcfa7a5c86e47b.tar.bz2 | |
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 'include/asm-ppc')
| -rw-r--r-- | include/asm-ppc/global_data.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-ppc/global_data.h b/include/asm-ppc/global_data.h index aa6384c..bacd02d 100644 --- a/include/asm-ppc/global_data.h +++ b/include/asm-ppc/global_data.h @@ -163,7 +163,7 @@ typedef struct global_data { #define GD_FLG_SILENT 0x00004 /* Silent mode */ #if 1 -#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r29") +#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r2") #else /* We could use plain global data, but the resulting code is bigger */ #define XTRN_DECLARE_GLOBAL_DATA_PTR extern #define DECLARE_GLOBAL_DATA_PTR XTRN_DECLARE_GLOBAL_DATA_PTR \ |