diff options
| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-08-26 15:52:13 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-08-28 23:19:33 +1000 |
| commit | f7a0bf7d904e902e13024986b7b357181ee30849 (patch) | |
| tree | cc33d724eab990a48f32d5f18cc028eb2761034f /arch/powerpc | |
| parent | 3bbd2343734e44de92238eea1a5cd3ad32a6baf0 (diff) | |
powerpc/32s: add an option to exclusively select powerpc 601
Powerpc 601 is rather old powerpc which as some important
limitations compared to other book3s/32 powerpcs:
- No Timebase.
- Common BATs for instruction and data.
- No execution protection in segment registers.
- No RI bit in MSR
- ...
It is starting to be difficult and cumbersome to maintain
kernels that are compatible both with 601 and other 6xx cores.
Create a compiletime option to exclusively select either powerpc 601
or other 6xx.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/d644eaf7dff8cc149260066802af230bdf34fded.1566834712.git.christophe.leroy@c-s.fr
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 56a7c814160d..68c5cc075bfc 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -6,6 +6,9 @@ config PPC64 This option selects whether a 32-bit or a 64-bit kernel will be built. +config PPC_BOOK3S_32 + bool + menu "Processor support" choice prompt "Processor Type" @@ -21,13 +24,20 @@ choice If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx. -config PPC_BOOK3S_32 - bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx" +config PPC_BOOK3S_6xx + bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx except 601" + select PPC_BOOK3S_32 select PPC_FPU select PPC_HAVE_PMU_SUPPORT select PPC_HAVE_KUEP select PPC_HAVE_KUAP +config PPC_BOOK3S_601 + bool "PowerPC 601" + select PPC_BOOK3S_32 + select PPC_FPU + select PPC_HAVE_KUAP + config PPC_85xx bool "Freescale 85xx" select E500 |