Commit f7a0bf7d authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
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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: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/d644eaf7dff8cc149260066802af230bdf34fded.1566834712.git.christophe.leroy@c-s.fr
parent 3bbd2343

arch/powerpc/platforms/Kconfig.cputype

+12 −2
Original line number Diff line number Diff line
@@ -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

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