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/74xx_7xx/config.mk | 2 +- cpu/mpc512x/config.mk | 2 +- cpu/mpc5xx/config.mk | 2 +- cpu/mpc5xxx/config.mk | 2 +- cpu/mpc8220/config.mk | 2 +- cpu/mpc824x/config.mk | 2 +- cpu/mpc8260/config.mk | 2 +- cpu/mpc83xx/config.mk | 2 +- cpu/mpc85xx/config.mk | 3 ++- cpu/mpc86xx/config.mk | 2 +- cpu/mpc86xx/start.S | 2 +- cpu/mpc8xx/config.mk | 2 +- cpu/ppc4xx/config.mk | 2 +- 13 files changed, 14 insertions(+), 13 deletions(-) (limited to 'cpu') diff --git a/cpu/74xx_7xx/config.mk b/cpu/74xx_7xx/config.mk index 417d99f33b..324f62b836 100644 --- a/cpu/74xx_7xx/config.mk +++ b/cpu/74xx_7xx/config.mk @@ -23,4 +23,4 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -fno-strict-aliasing -PLATFORM_CPPFLAGS += -DCONFIG_74xx_7xx -ffixed-r2 -ffixed-r29 -mstring +PLATFORM_CPPFLAGS += -DCONFIG_74xx_7xx -ffixed-r2 -mstring diff --git a/cpu/mpc512x/config.mk b/cpu/mpc512x/config.mk index 8a07c5a3b6..5b7e1f2682 100644 --- a/cpu/mpc512x/config.mk +++ b/cpu/mpc512x/config.mk @@ -22,4 +22,4 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi PLATFORM_CPPFLAGS += -DCONFIG_MPC512X -DCONFIG_E300 \ - -ffixed-r2 -ffixed-r29 -msoft-float -mcpu=603e + -ffixed-r2 -msoft-float -mcpu=603e diff --git a/cpu/mpc5xx/config.mk b/cpu/mpc5xx/config.mk index 64cd60071a..6d66c32bee 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 diff --git a/cpu/mpc5xxx/config.mk b/cpu/mpc5xxx/config.mk index 0df51babd7..b0ce2ee9e3 100644 --- a/cpu/mpc5xxx/config.mk +++ b/cpu/mpc5xxx/config.mk @@ -23,7 +23,7 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -PLATFORM_CPPFLAGS += -DCONFIG_MPC5xxx -ffixed-r2 -ffixed-r29 \ +PLATFORM_CPPFLAGS += -DCONFIG_MPC5xxx -ffixed-r2 \ -mstring -mcpu=603e -mmultiple # Use default linker script. Board port can override in board/*/config.mk diff --git a/cpu/mpc8220/config.mk b/cpu/mpc8220/config.mk index 8e3ba54287..5819048d01 100644 --- a/cpu/mpc8220/config.mk +++ b/cpu/mpc8220/config.mk @@ -23,7 +23,7 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -PLATFORM_CPPFLAGS += -DCONFIG_MPC8220 -ffixed-r2 -ffixed-r29 \ +PLATFORM_CPPFLAGS += -DCONFIG_MPC8220 -ffixed-r2 \ -mstring -mcpu=603e -mmultiple # Use default linker script. Board port can override in board/*/config.mk diff --git a/cpu/mpc824x/config.mk b/cpu/mpc824x/config.mk index 66207f4354..1bb0487bd3 100644 --- a/cpu/mpc824x/config.mk +++ b/cpu/mpc824x/config.mk @@ -23,7 +23,7 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -fno-strict-aliasing -PLATFORM_CPPFLAGS += -DCONFIG_MPC824X -ffixed-r2 -ffixed-r29 -mstring -mcpu=603e -msoft-float +PLATFORM_CPPFLAGS += -DCONFIG_MPC824X -ffixed-r2 -mstring -mcpu=603e -msoft-float # Use default linker script. Board port can override in board/*/config.mk LDSCRIPT := $(SRCTREE)/cpu/mpc824x/u-boot.lds diff --git a/cpu/mpc8260/config.mk b/cpu/mpc8260/config.mk index 683b6fbf2b..2cb027093b 100644 --- a/cpu/mpc8260/config.mk +++ b/cpu/mpc8260/config.mk @@ -23,7 +23,7 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -PLATFORM_CPPFLAGS += -DCONFIG_8260 -DCONFIG_CPM2 -ffixed-r2 -ffixed-r29 \ +PLATFORM_CPPFLAGS += -DCONFIG_8260 -DCONFIG_CPM2 -ffixed-r2 \ -mstring -mcpu=603e -mmultiple # Use default linker script. Board port can override in board/*/config.mk diff --git a/cpu/mpc83xx/config.mk b/cpu/mpc83xx/config.mk index ecf8a60bbe..2f0f1ce1ef 100644 --- a/cpu/mpc83xx/config.mk +++ b/cpu/mpc83xx/config.mk @@ -23,7 +23,7 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi PLATFORM_CPPFLAGS += -DCONFIG_MPC83XX -DCONFIG_E300 \ - -ffixed-r2 -ffixed-r29 -msoft-float + -ffixed-r2 -msoft-float # Use default linker script. Board port can override in board/*/config.mk LDSCRIPT := $(SRCTREE)/cpu/mpc83xx/u-boot.lds 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 diff --git a/cpu/mpc86xx/config.mk b/cpu/mpc86xx/config.mk index 3c54f4ad39..d767269ad3 100644 --- a/cpu/mpc86xx/config.mk +++ b/cpu/mpc86xx/config.mk @@ -23,4 +23,4 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -PLATFORM_CPPFLAGS += -DCONFIG_MPC86xx -ffixed-r2 -ffixed-r29 -mstring +PLATFORM_CPPFLAGS += -DCONFIG_MPC86xx -ffixed-r2 -mstring diff --git a/cpu/mpc86xx/start.S b/cpu/mpc86xx/start.S index fa9736bce0..09f4ceedb5 100644 --- a/cpu/mpc86xx/start.S +++ b/cpu/mpc86xx/start.S @@ -723,7 +723,7 @@ relocate_code: mr r1, r3 /* Set new stack pointer */ mr r9, r4 /* Save copy of Global Data pointer */ - mr r29, r9 /* Save for DECLARE_GLOBAL_DATA_PTR */ + mr r2, r9 /* Save for DECLARE_GLOBAL_DATA_PTR */ mr r10, r5 /* Save copy of Destination Address */ mr r3, r5 /* Destination Address */ diff --git a/cpu/mpc8xx/config.mk b/cpu/mpc8xx/config.mk index bfa6625fa8..6031e7f76a 100644 --- a/cpu/mpc8xx/config.mk +++ b/cpu/mpc8xx/config.mk @@ -23,4 +23,4 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -fno-strict-aliasing -PLATFORM_CPPFLAGS += -DCONFIG_8xx -ffixed-r2 -ffixed-r29 -mstring -mcpu=860 -msoft-float +PLATFORM_CPPFLAGS += -DCONFIG_8xx -ffixed-r2 -mstring -mcpu=860 -msoft-float diff --git a/cpu/ppc4xx/config.mk b/cpu/ppc4xx/config.mk index 4fd510899c..311c97b732 100644 --- a/cpu/ppc4xx/config.mk +++ b/cpu/ppc4xx/config.mk @@ -22,7 +22,7 @@ # PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -fno-strict-aliasing -PLATFORM_CPPFLAGS += -DCONFIG_4xx -ffixed-r2 -ffixed-r29 -mstring -msoft-float +PLATFORM_CPPFLAGS += -DCONFIG_4xx -ffixed-r2 -mstring -msoft-float cfg=$(shell grep configs $(OBJTREE)/include/config.h | sed 's/.*<\(configs.*\)>/\1/') is440=$(shell grep CONFIG_440 $(TOPDIR)/include/$(cfg)) -- cgit