Thread (15 messages) 15 messages, 7 authors, 2007-10-05

Re: [PATCH 5/6] PowerPC 440EPx: Sequoia board support

From: David Gibson <hidden>
Date: 2007-08-01 05:05:42

On Wed, Aug 01, 2007 at 07:01:17AM +0200, Segher Boessenkool wrote:
quoted
quoted
+	{ /* 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,
+	},
Since the with/without Security/Kasumi versions have no differences in
their cputable entry other than the PVR, couldn't you just remove the
relevant PVR bit from the mask and use a single entry?
And get rid of the stupid "has an FPU" comment at the same time
please :-)
Actually that comment may be worthwhile if expanded a little.  I think
the point is that 440EPx *unlike most other 4xx chips* has an FPU.  So
the point of the comment is not explaining the feature bit, which is
obvious, but as a "no, really, it does".

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help