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(parent: 7d47034) | patch
powerpc/44x: Don't support 440 when CONFIG_PPC_47x is set
authorChristophe Leroy <christophe.leroy@csgroup.eu>
Sun, 18 Oct 2020 17:25:17 +0000 (17:25 +0000)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 3 Dec 2020 14:01:34 +0000 (01:01 +1100)
commit8b8319b181fd9d6821703fef1228b4dcde613a16
tree0d6d9cf33a0f257af367507c061c9ea37b573ef2tree | snapshot
parent7d47034551687eb6c15e8431d897a3758fc5f83ecommit | diff
powerpc/44x: Don't support 440 when CONFIG_PPC_47x is set

As stated in platform/44x/Kconfig, CONFIG_PPC_47x is not
compatible with 440 and 460 variants.

This is confirmed in asm/cache.h as L1_CACHE_SHIFT is different
for 47x, meaning a kernel built for 47x will not run correctly
on a 440.

In cputable, opt out all 440 and 460 variants when CONFIG_PPC_47x
is set. Also add a default match dedicated to 470.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/822833ce3dc10634339818f7d1ab616edf63b0c6.1603041883.git.christophe.leroy@csgroup.eu
arch/powerpc/include/asm/cputable.h diff | blob | history
arch/powerpc/include/asm/mmu.h diff | blob | history
arch/powerpc/kernel/cputable.c diff | blob | history
Domain: System / Kernel;