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powerpc/5xxx: Add common mpc5xxx_get_bus_frequency() function

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So far, MPC512x used mpc512x_find_ips_freq() to get the bus frequency,
while MPC52xx used mpc52xx_find_ipb_freq().  Despite the different
clock names (IPS vs. IPB) the code was identical.

Use common code for both processor families.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Wolfgang Denk
2009-06-17 00:30:22 -06:00
committed by Grant Likely
parent c155ee10c2
commit 87c441e54d
14 changed files with 51 additions and 70 deletions
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23
arch/powerpc/platforms/512x/mpc512x_shared.c
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@@ -24,29 +24,6 @@
#include "mpc512x.h"
unsigned long
mpc512x_find_ips_freq(struct device_node *node)
{
struct device_node *np;
const unsigned int *p_ips_freq = NULL;
of_node_get(node);
while (node) {
p_ips_freq = of_get_property(node, "bus-frequency", NULL);
if (p_ips_freq)
break;
np = of_get_parent(node);
of_node_put(node);
node = np;
}
if (node)
of_node_put(node);
return p_ips_freq ? *p_ips_freq : 0;
}
EXPORT_SYMBOL(mpc512x_find_ips_freq);
void __init mpc512x_init_IRQ(void)
{
struct device_node *np;