diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-10 17:53:27 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-11 17:11:35 +1100 |
| commit | 28794d34ecb6815a3fa0a4256027c9b081a17c5f (patch) | |
| tree | b75cba61f2d41b07d09ade4a72e4aba80fd73a31 /arch/powerpc/kernel | |
| parent | 9e5efaa9360f26e0052d16f7a40d002a6a18863b (diff) | |
powerpc/kconfig: Kill PPC_MULTIPLATFORM
CONFIG_PPC_MULTIPLATFORM is a remain of the pre-powerpc days and isn't
really meaningful anymore. It was basically equivalent to PPC64 || 6xx.
This removes it along with the following changes:
- 32-bit platforms that relied on PPC32 && PPC_MULTIPLATFORM now rely
on 6xx which is what they want anyway.
- A new symbol, PPC_BOOK3S, is defined that represent compliance with
the "Server" variant of the architecture. This is set when either 6xx
or PPC64 is set and open the door for future BOOK3E 64-bit.
- 64-bit platforms that relied on PPC64 && PPC_MULTIPLATFORM now use
PPC64 && PPC_BOOK3S
- A separate and selectable CONFIG_PPC_OF_BOOT_TRAMPOLINE option is now
used to control the use of prom_init.c
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/head_32.S | 7 | ||||
| -rw-r--r-- | arch/powerpc/kernel/head_64.S | 6 |
3 files changed, 11 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index dfec3d2790b..71901fbda4a 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -75,7 +75,7 @@ obj-y += time.o prom.o traps.o setup-common.o \ obj-$(CONFIG_PPC32) += entry_32.o setup_32.o obj-$(CONFIG_PPC64) += dma-iommu.o iommu.o obj-$(CONFIG_KGDB) += kgdb.o -obj-$(CONFIG_PPC_MULTIPLATFORM) += prom_init.o +obj-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_init.o obj-$(CONFIG_MODULES) += ppc_ksyms.o obj-$(CONFIG_BOOTX_TEXT) += btext.o obj-$(CONFIG_SMP) += smp.o diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index a1c4cfd25de..f8c2e6b6f45 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -108,18 +108,21 @@ __start: * because OF may have I/O devices mapped into that area * (particularly on CHRP). */ -#ifdef CONFIG_PPC_MULTIPLATFORM cmpwi 0,r5,0 beq 1f +#ifdef CONFIG_PPC_OF_BOOT_TRAMPOLINE /* find out where we are now */ bcl 20,31,$+4 0: mflr r8 /* r8 = runtime addr here */ addis r8,r8,(_stext - 0b)@ha addi r8,r8,(_stext - 0b)@l /* current runtime base addr */ bl prom_init +#endif /* CONFIG_PPC_OF_BOOT_TRAMPOLINE */ + + /* We never return. We also hit that trap if trying to boot + * from OF while CONFIG_PPC_OF_BOOT_TRAMPOLINE isn't selected */ trap -#endif /* * Check for BootX signature when supporting PowerMac and branch to diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S index ebaedafc8e6..50ef505b8fb 100644 --- a/arch/powerpc/kernel/head_64.S +++ b/arch/powerpc/kernel/head_64.S @@ -1360,6 +1360,7 @@ _GLOBAL(__start_initialization_multiplatform) b .__after_prom_start _INIT_STATIC(__boot_from_prom) +#ifdef CONFIG_PPC_OF_BOOT_TRAMPOLINE /* Save parameters */ mr r31,r3 mr r30,r4 @@ -1390,7 +1391,10 @@ _INIT_STATIC(__boot_from_prom) /* Do all of the interaction with OF client interface */ mr r8,r26 bl .prom_init - /* We never return */ +#endif /* #CONFIG_PPC_OF_BOOT_TRAMPOLINE */ + + /* We never return. We also hit that trap if trying to boot + * from OF while CONFIG_PPC_OF_BOOT_TRAMPOLINE isn't selected */ trap _STATIC(__after_prom_start) |