This patch refactors clock.c by replacing printk calls with
pr_info/pr_cont, and uses '=' in output to connect key/value pairs
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

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: NWolfgang Denk <wd@denx.de>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

strcmp on NULL results in a segmentation fault, also, remove the second,
redundant test on dev
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

Plugs into the generic powerpc clock driver in
arch/powerpc/kernel/clock.c

The following subset of clk_interface is implemented:
    clk_get, clk_put:  get clock via name, release clock
    clk_enable, clk_disable:  enable or disable clock
    clk_get_rate:  get clock rate in Hz
    clk_set_rate:  stubbed
    clk_round_rate:  stubbed
    clk_set_parent: NULL
    clk_get_parent: NULL
Signed-off-by: NJohn Rigby <jrigby@freescale.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>