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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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2
drivers/i2c/busses/i2c-mpc.c
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@ -197,7 +197,7 @@ int mpc_i2c_get_fdr_52xx(struct device_node *node, u32 clock, int prescaler)
return -EINVAL;
/* Determine divider value */
divider = mpc52xx_find_ipb_freq(node) / clock;
divider = mpc5xxx_get_bus_frequency(node) / clock;
/*
* We want to choose an FDR/DFSR that generates an I2C bus speed that