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powerpc: Add of_find_next_cache_node()

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We have more than one piece of code that looks up cache nodes manually
using the "l2-cache" property.  Add a common helper routine which does
this and handles ePAPR's "next-level-cache" property as well as
powermac.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Nathan Lynch
2008-12-10 14:46:04 +00:00
committed by Paul Mackerras
parent 749820928a
commit e523f723d6
2 changed files with 34 additions and 0 deletions
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3
arch/powerpc/include/asm/prom.h
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@ -253,6 +253,9 @@ extern void kdump_move_device_tree(void);
/* CPU OF node matching */
struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
/* cache lookup */
struct device_node *of_find_next_cache_node(struct device_node *np);
/* Get the MAC address */
extern const void *of_get_mac_address(struct device_node *np);