powerpc: Kconfig: remove BE-only platforms from LE kernel build

Currently, little endian is only supported on powernv and pseries,
however, Kconfigs still allow us to include other platforms in a LE
kernel, this may result in space wasting or even build error if some
BE-only platforms always assume they are built for a BE kernel. So just
modify the Kconfigs of BE-only platforms to remove them from being built
for a LE kernel.

For 32bit only platforms, nothing needs to be done, because
CPU_LITTLE_ENDIAN depends on PPC64. For 64bit supported platforms, add
CPU_BIG_ENDIAN to dependencies explicitly, so that these platforms will
be disabled for LE [Suggested-by: Cédric Le Goater <clg@fr.ibm.com>].

Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Acked-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index b0ac177..429fc59 100644 (file)
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -25,7 +25,7 @@ config PPC_CELL_NATIVE
 
 config PPC_IBM_CELL_BLADE
        bool "IBM Cell Blade"
-       depends on PPC64 && PPC_BOOK3S
+       depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
        select PPC_CELL_NATIVE
        select PPC_OF_PLATFORM_PCI
        select PCI
@@ -35,7 +35,7 @@ config PPC_IBM_CELL_BLADE
 
 config PPC_CELL_QPACE
        bool "IBM Cell - QPACE"
-       depends on PPC64 && PPC_BOOK3S
+       depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
        select PPC_CELL_COMMON
 
 config AXON_MSI

diff --git a/arch/powerpc/platforms/maple/Kconfig b/arch/powerpc/platforms/maple/Kconfig
index 1ea621a..e359d0d 100644 (file)
--- a/arch/powerpc/platforms/maple/Kconfig
+++ b/arch/powerpc/platforms/maple/Kconfig
@@ -1,5 +1,5 @@
 config PPC_MAPLE
-       depends on PPC64 && PPC_BOOK3S
+       depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
        bool "Maple 970FX Evaluation Board"
        select PCI
        select MPIC

diff --git a/arch/powerpc/platforms/pasemi/Kconfig b/arch/powerpc/platforms/pasemi/Kconfig
index a2aeb32..00d4b28 100644 (file)
--- a/arch/powerpc/platforms/pasemi/Kconfig
+++ b/arch/powerpc/platforms/pasemi/Kconfig
@@ -1,5 +1,5 @@
 config PPC_PASEMI
-       depends on PPC64 && PPC_BOOK3S
+       depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
        bool "PA Semi SoC-based platforms"
        default n
        select MPIC

diff --git a/arch/powerpc/platforms/powermac/Kconfig b/arch/powerpc/platforms/powermac/Kconfig
index 607124b..43c6062 100644 (file)
--- a/arch/powerpc/platforms/powermac/Kconfig
+++ b/arch/powerpc/platforms/powermac/Kconfig
@@ -1,6 +1,6 @@
 config PPC_PMAC
        bool "Apple PowerMac based machines"
-       depends on PPC_BOOK3S
+       depends on PPC_BOOK3S && CPU_BIG_ENDIAN
        select MPIC
        select PCI
        select PPC_INDIRECT_PCI if PPC32

diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig
index 56f2740..b27f40f 100644 (file)
--- a/arch/powerpc/platforms/ps3/Kconfig
+++ b/arch/powerpc/platforms/ps3/Kconfig
@@ -1,6 +1,6 @@
 config PPC_PS3
        bool "Sony PS3"
-       depends on PPC64 && PPC_BOOK3S
+       depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
        select PPC_CELL
        select USB_OHCI_LITTLE_ENDIAN
        select USB_OHCI_BIG_ENDIAN_MMIO