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Add comment explaining what cortex_a9_rev() is doing. 

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Robert P. J. Day 2012-02-10 06:31:52 -05:00 committed by Sascha Hauer
parent 8187c70e4c
commit c9c75e4cf3
1 changed files with 1 additions and 0 deletions
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arch/arm/mach-omap/omap4_generic.c
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@ -352,6 +352,7 @@ static unsigned int cortex_a9_rev(void)
unsigned int i;
/* Read Main ID Register (MIDR) */
asm ("mrc p15, 0, %0, c0, c0, 0" : "=r" (i));
return i;