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ARM: S5PV210: Remove usage of clk_p100 and add clk_pclk_msys clock 

The clk_p100 clock, which is the PCLK clock for MSYS domain, is of
type 'struct clk' whereas on S5PV210, this clock is suitable to be
of type clksrc_clk clock (since it has a choice of clock source
and a pre-divider). So this patch replaces the 'struct clk' type
clock to 'struct clksrc_clk' type clock for the PCLK MSYS clock.

This patch modifies the following.

1. Remove definitions and usage of 'clk_p100' clock.
2. Adds 'clk_pclk_msys' clock which is of type 'struct clksrc_clk'.
3. Replace all usage of clk_p100 with clk_pclk_msys clock.
4. Adds clk_pclk_msys into list of clocks to be registered.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Thomas Abraham 2010-05-17 09:38:42 +09:00 committed by Ben Dooks
parent acfa245fc7
commit 6ed91a202b
1 changed files with 13 additions and 10 deletions
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23
arch/arm/mach-s5pv210/clock.c
View File

@ -87,6 +87,15 @@ static struct clksrc_clk clk_hclk_msys = {
.reg_div = { .reg = S5P_CLK_DIV0, .shift = 8, .size = 3 },
};
static struct clksrc_clk clk_pclk_msys = {
.clk = {
.name = "pclk_msys",
.id = -1,
.parent = &clk_hclk_msys.clk,
},
.reg_div = { .reg = S5P_CLK_DIV0, .shift = 12, .size = 3 },
};
static struct clksrc_clk clk_sclk_a2m = {
.clk = {
.name = "sclk_a2m",
@ -151,11 +160,6 @@ static struct clk clk_h100 = {
.id = -1,
};
static struct clk clk_p100 = {
.name = "pclk100",
.id = -1,
};
static struct clk clk_p83 = {
.name = "pclk83",
.id = -1,
@ -168,7 +172,6 @@ static struct clk clk_p66 = {
static struct clk *sys_clks[] = {
&clk_h100,
&clk_p100,
&clk_p83,
&clk_p66
};
@ -383,6 +386,7 @@ static struct clksrc_clk *sysclks[] = {
&clk_sclk_a2m,
&clk_hclk_dsys,
&clk_hclk_psys,
&clk_pclk_msys,
};
#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1)
@ -395,7 +399,7 @@ void __init_or_cpufreq s5pv210_setup_clocks(void)
unsigned long hclk_msys;
unsigned long hclk_dsys;
unsigned long hclk_psys;
unsigned long pclk100;
unsigned long pclk_msys;
unsigned long pclk83;
unsigned long pclk66;
unsigned long apll;
@ -435,15 +439,14 @@ void __init_or_cpufreq s5pv210_setup_clocks(void)
hclk_msys = clk_get_rate(&clk_hclk_msys.clk);
hclk_dsys = clk_get_rate(&clk_hclk_dsys.clk);
hclk_psys = clk_get_rate(&clk_hclk_psys.clk);
pclk100 = hclk_msys / GET_DIV(clkdiv0, S5P_CLKDIV0_PCLK100);
pclk_msys = clk_get_rate(&clk_pclk_msys.clk);
pclk83 = hclk_dsys / GET_DIV(clkdiv0, S5P_CLKDIV0_PCLK83);
pclk66 = hclk_psys / GET_DIV(clkdiv0, S5P_CLKDIV0_PCLK66);
printk(KERN_INFO "S5PV210: ARMCLK=%ld, HCLKM=%ld, HCLKD=%ld\n"
"HCLKP=%ld, PCLKM=%ld, PCLKD=%ld, PCLKP=%ld\n",
armclk, hclk_msys, hclk_dsys, hclk_psys,
pclk100, pclk83, pclk66);
pclk_msys, pclk83, pclk66);
clk_f.rate = armclk;
clk_h.rate = hclk_psys;