Stefan Roese wrote:
> On Thursday 02 August 2007, Josh Boyer wrote:
>> On Mon, 30 Jul 2007 19:16:28 +0400
>>> +0400 +++ linux/arch/powerpc/kernel/cputable.c 2007-07-27
>>> 20:44:26.000000000 +0400 @@ -1132,6 +1132,42 @@
>>> .dcache_bsize = 32,
>>> .platform = "ppc440",
>>> },
>>> + { /* 440EPX - with Security/Kasumi */
>>> + .pvr_mask = 0xf0000fff,
>>> + .pvr_value = 0x200008D0,
>>> + .cpu_name = "440EPX - with Security/Kasumi",
>>> + .cpu_features = CPU_FTRS_44X,
>>> + .cpu_user_features = COMMON_USER_BOOKE |
>>> PPC_FEATURE_HAS_FPU, /*
>>> 440EPX has an FPU */ + .icache_bsize = 32,
>>> + .dcache_bsize = 32,
>>> + },
>>> + { /* 440EPX - without Security/Kasumi */
>>> + .pvr_mask = 0xf0000fff,
>>> + .pvr_value = 0x200008D4,
>>> + .cpu_name = "440EPX - no Security/Kasumi",
>>> + .cpu_features = CPU_FTRS_44X,
>>> + .cpu_user_features = COMMON_USER_BOOKE |
>>> PPC_FEATURE_HAS_FPU, /*
>>> 440EPX has an FPU */ + .icache_bsize = 32,
>>> + .dcache_bsize = 32,
>>> + },
>>> + { /* 440GRX - with Security/Kasumi */
>>> + .pvr_mask = 0xf0000fff,
>>> + .pvr_value = 0x200008D8,
>>> + .cpu_name = "440GRX - with Security/Kasumi",
>>> + .cpu_features = CPU_FTRS_44X,
>>> + .cpu_user_features = COMMON_USER_BOOKE, /* 440GRX has no
>>> FPU */
>>> + .icache_bsize = 32,
>>> + .dcache_bsize = 32,
>>> + },
>>> + { /* 440GRX - without Security/Kasumi */
>>> + .pvr_mask = 0xf0000fff,
>>> + .pvr_value = 0x200008DC,
>>> + .cpu_name = "440GRX - no Security/Kasumi",
>>> + .cpu_features = CPU_FTRS_44X,
>>> + .cpu_user_features = COMMON_USER_BOOKE, /* 440GRX has no
>>> FPU */
>>> + .icache_bsize = 32,
>>> + .dcache_bsize = 32,
>>> + },
>> Should the 440GRX PVR additions be done in a separate patch? Or is the
>> PVR and cpu features truly the only difference between 440EPx and
>> 440GRx?
>
> I think it makes sense to add the 440GRx with this patchset too. The 440GRx
> is
> a subset of the 440EPx, missing some stuff like USB, FPU. And the AMCC
> Rainier 440GRx eval board is a subset of the Sequoia eval board. So no new
> board specific sources should be necessary to support the Rainier, just a
> different defconfig file.
>
> Best regards,
> Stefan
I have a Rainier 440GRx board and the PVR is equal to the 440EPx one
(0x200008D0). This has to be handled somehow, since the
PPC_FEATURE_HAS_FPU flag should *not* be set for 440GRx.
I'm really not sure how though. Any ideas are greatly appreciated :)
Is it a h/w bug?
Thanks,
Valentine.
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