On Mon, Aug 31, 2015 at 02:12:54PM +0200, Cédric Le Goater wrote:
>
>
> or like this, to be consistent with the other *_CPU configs in
> Kconfig.cputype :
>
> --- 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_LITTLE_ENDIAN
> select PPC_CELL
> select USB_OHCI_LITTLE_ENDIAN
> select USB_OHCI_BIG_ENDIAN_MMIO
>
Hmm.. this works, however I would prefer to CPU_BIG_ENDIAN rather than
!CPU_LITTLE_ENDIAN because CPU_BIG_ENDIAN is more straightforward.
Does this look good?
Regards,
Boqun
-------8<
Subject: [PATCH] powerpc: Kconfig: remove BE-only platforms in LE kernel build
Currently, little endian is only supported on powernv and pseries,
however, Kconfig still allow us to include other platforms in a LE
kernel, this may result in space wasting or even build errors if some
BE-only platforms always assume they are built for a BE kernel. So just
modify the Kconfigs in BE-only platforms to remove them from being built
for a LE kernel.
For 32bit only platforms, nothing needs to be done, because LE depends on
PPC64. For 64bit supported platforms, add CPU_BIG_ENDIAN to dependencies
explicitly [Suggested-by: Cédric Le Goater <c...@fr.ibm.com>].
Signed-off-by: Boqun Feng <boqun.f...@gmail.com>
---
arch/powerpc/platforms/cell/Kconfig | 4 ++--
arch/powerpc/platforms/maple/Kconfig | 2 +-
arch/powerpc/platforms/pasemi/Kconfig | 2 +-
arch/powerpc/platforms/powermac/Kconfig | 2 +-
arch/powerpc/platforms/ps3/Kconfig | 2 +-
5 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/platforms/cell/Kconfig
b/arch/powerpc/platforms/cell/Kconfig
index b0ac177..429fc59 100644
--- 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
--- 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
--- 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
--- 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
--- 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
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