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blackfin: bf60x: cleanup get clock code

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Remove redundance code for get clock.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
This commit is contained in:
Sonic Zhang 2012-05-17 17:35:24 +08:00 committed by Bob Liu
parent 72b099ed93
commit 1d3dbda6ed
1 changed files with 22 additions and 42 deletions
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64
arch/blackfin/kernel/setup.c
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@ -888,6 +888,22 @@ void __init native_machine_early_platform_add_devices(void)
{
}
#ifdef CONFIG_BF60x
static inline u_long bfin_get_clk(char *name)
{
struct clk *clk;
u_long clk_rate;
clk = clk_get(NULL, name);
if (IS_ERR(clk))
return 0;
clk_rate = clk_get_rate(clk);
clk_put(clk);
return clk_rate;
}
#endif
void __init setup_arch(char **cmdline_p)
{
u32 mmr;
@ -1045,7 +1061,7 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_BF60x
printk(KERN_INFO "Processor Speed: %lu MHz core clock, %lu MHz SCLk, %lu MHz SCLK0, %lu MHz SCLK1 and %lu MHz DCLK\n",
cclk / 1000000, sclk / 1000000, get_sclk0() / 1000000, get_sclk1() / 1000000, get_dclk() / 1000000);
cclk / 1000000, bfin_get_clk("SYSCLK") / 1000000, get_sclk0() / 1000000, get_sclk1() / 1000000, get_dclk() / 1000000);
#else
printk(KERN_INFO "Processor Speed: %lu MHz core clock and %lu MHz System Clock\n",
cclk / 1000000, sclk / 1000000);
@ -1146,16 +1162,7 @@ static u_long get_vco(void)
u_long get_cclk(void)
{
#ifdef CONFIG_BF60x
struct clk *cclk;
u_long cclk_rate;
cclk = clk_get(NULL, "CCLK");
if (IS_ERR(cclk))
return 0;
cclk_rate = clk_get_rate(cclk);
clk_put(cclk);
return cclk_rate;
return bfin_get_clk("CCLK");
#else
static u_long cached_cclk_pll_div, cached_cclk;
u_long csel, ssel;
@ -1184,53 +1191,26 @@ EXPORT_SYMBOL(get_cclk);
/* Get the bf60x clock of SCLK0 domain */
u_long get_sclk0(void)
{
struct clk *sclk0;
u_long sclk0_rate;
sclk0 = clk_get(NULL, "SCLK0");
if (IS_ERR(sclk0))
return 0;
sclk0_rate = clk_get_rate(sclk0);
clk_put(sclk0);
return sclk0_rate;
return bfin_get_clk("SCLK0");
}
EXPORT_SYMBOL(get_sclk0);
/* Get the bf60x clock of SCLK1 domain */
u_long get_sclk1(void)
{
struct clk *sclk1;
u_long sclk1_rate;
sclk1 = clk_get(NULL, "SCLK1");
if (IS_ERR(sclk1))
return 0;
sclk1_rate = clk_get_rate(sclk1);
clk_put(sclk1);
return sclk1_rate;
return bfin_get_clk("SCLK1");
}
EXPORT_SYMBOL(get_sclk1);
/* Get the bf60x DRAM clock */
u_long get_dclk(void)
{
struct clk *dclk;
u_long dclk_rate;
dclk = clk_get(NULL, "DCLK");
if (IS_ERR(dclk))
return 0;
dclk_rate = clk_get_rate(dclk);
clk_put(dclk);
return dclk_rate;
return bfin_get_clk("DCLK");
}
EXPORT_SYMBOL(get_dclk);
#endif
/* Get the System clock */
/* Get the default system clock */
u_long get_sclk(void)
{
#ifdef CONFIG_BF60x