Thread (5 messages) 5 messages, 2 authors, 2007-05-31

Re: Consolidate cuboot initialization code

From: David Gibson <hidden>
Date: 2007-05-30 15:12:36

On Wed, May 30, 2007 at 10:09:11AM -0500, Scott Wood wrote:
David Gibson wrote:
quoted
+void cuboot_init(unsigned long r4, unsigned long r5,
+		 unsigned long r6, unsigned long r7,
+		 unsigned long end_of_ram);
+
+#define CUBOOT_INIT() \
+	do { \
+		memcpy(&bd, (bd_t *)r3, sizeof(bd)); \
+		cuboot_init(r4, r5, r6, r7, bd.bi_memstart + bd.bi_memsize); \
+	} while (0)
Is there any particular reason to not just do a direct call to 
cuboot_init, and move the memcpy and end-of-ram calculation there?  I'd 
rather avoid macros if possible.
Uh.. yeah.. because cuboot_init() doesn't know the size to memcpy(),
because it doesn't have the right bd_t definition.
Also, the "extern char _dtb_start[], _dtb_end[];" line in cuboot.c 
doesn't appear to be needed.
Oh, yeah, that's a hangover from when I had the ft initialization in
there as well.  That works for 83xx and 85xx, but not ebony.
Other than that, it looks good.

-Scott
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-- 
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
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