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ARM: EXYNOS: Add pre-divider and fout mux clocks for bpll and mpll 

The fout clock of BPLL and MPLL have a selectable source on EXYNOS5250.
The clock options are a fixed divided by 2 clock and the output of the
PLL itself. Add support for these new clock instances.

Signed-off-by: Kisoo Yu <ksoo.yu@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
[kgene.kim@samsung.com: moved common pll stuff into s5p-clock.c]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Kisoo Yu 2012-04-24 14:54:15 -07:00 committed by Kukjin Kim
parent f10590c983
commit 57b317f912
4 changed files with 80 additions and 2 deletions
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46
arch/arm/mach-exynos/clock-exynos5.c
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@ -165,11 +165,29 @@ static struct clksrc_clk exynos5_clk_sclk_apll = {
.reg_div = { .reg = EXYNOS5_CLKDIV_CPU0, .shift = 24, .size = 3 },
};
static struct clksrc_clk exynos5_clk_mout_bpll_fout = {
.clk = {
.name = "mout_bpll_fout",
},
.sources = &clk_src_bpll_fout,
.reg_src = { .reg = EXYNOS5_PLL_DIV2_SEL, .shift = 0, .size = 1 },
};
static struct clk *exynos5_clk_src_bpll_list[] = {
[0] = &clk_fin_bpll,
[1] = &exynos5_clk_mout_bpll_fout.clk,
};
static struct clksrc_sources exynos5_clk_src_bpll = {
.sources = exynos5_clk_src_bpll_list,
.nr_sources = ARRAY_SIZE(exynos5_clk_src_bpll_list),
};
static struct clksrc_clk exynos5_clk_mout_bpll = {
.clk = {
.name = "mout_bpll",
},
.sources = &clk_src_bpll,
.sources = &exynos5_clk_src_bpll,
.reg_src = { .reg = EXYNOS5_CLKSRC_CDREX, .shift = 0, .size = 1 },
};
@ -207,11 +225,29 @@ static struct clksrc_clk exynos5_clk_mout_epll = {
.reg_src = { .reg = EXYNOS5_CLKSRC_TOP2, .shift = 12, .size = 1 },
};
static struct clksrc_clk exynos5_clk_mout_mpll_fout = {
.clk = {
.name = "mout_mpll_fout",
},
.sources = &clk_src_mpll_fout,
.reg_src = { .reg = EXYNOS5_PLL_DIV2_SEL, .shift = 4, .size = 1 },
};
static struct clk *exynos5_clk_src_mpll_list[] = {
[0] = &clk_fin_mpll,
[1] = &exynos5_clk_mout_mpll_fout.clk,
};
static struct clksrc_sources exynos5_clk_src_mpll = {
.sources = exynos5_clk_src_mpll_list,
.nr_sources = ARRAY_SIZE(exynos5_clk_src_mpll_list),
};
struct clksrc_clk exynos5_clk_mout_mpll = {
.clk = {
.name = "mout_mpll",
},
.sources = &clk_src_mpll,
.sources = &exynos5_clk_src_mpll,
.reg_src = { .reg = EXYNOS5_CLKSRC_CORE1, .shift = 8, .size = 1 },
};
@ -1036,10 +1072,12 @@ static struct clksrc_clk *exynos5_sysclks[] = {
&exynos5_clk_mout_apll,
&exynos5_clk_sclk_apll,
&exynos5_clk_mout_bpll,
&exynos5_clk_mout_bpll_fout,
&exynos5_clk_mout_bpll_user,
&exynos5_clk_mout_cpll,
&exynos5_clk_mout_epll,
&exynos5_clk_mout_mpll,
&exynos5_clk_mout_mpll_fout,
&exynos5_clk_mout_mpll_user,
&exynos5_clk_vpllsrc,
&exynos5_clk_sclk_vpll,
@ -1103,7 +1141,9 @@ static struct clk *exynos5_clks[] __initdata = {
&exynos5_clk_sclk_hdmi27m,
&exynos5_clk_sclk_hdmiphy,
&clk_fout_bpll,
&clk_fout_bpll_div2,
&clk_fout_cpll,
&clk_fout_mpll_div2,
&exynos5_clk_armclk,
};
@ -1268,8 +1308,10 @@ void __init_or_cpufreq exynos5_setup_clocks(void)
clk_fout_apll.ops = &exynos5_fout_apll_ops;
clk_fout_bpll.rate = bpll;
clk_fout_bpll_div2.rate = bpll >> 1;
clk_fout_cpll.rate = cpll;
clk_fout_mpll.rate = mpll;
clk_fout_mpll_div2.rate = mpll >> 1;
clk_fout_epll.rate = epll;
clk_fout_vpll.rate = vpll;

2
arch/arm/mach-exynos/include/mach/regs-clock.h
View File

@ -322,6 +322,8 @@
#define EXYNOS5_CLKSRC_CDREX EXYNOS_CLKREG(0x20200)
#define EXYNOS5_CLKDIV_CDREX EXYNOS_CLKREG(0x20500)
#define EXYNOS5_PLL_DIV2_SEL EXYNOS_CLKREG(0x20A24)
#define EXYNOS5_EPLL_LOCK EXYNOS_CLKREG(0x10030)
#define EXYNOS5_EPLLCON0_LOCKED_SHIFT (29)

4
arch/arm/plat-samsung/include/plat/s5p-clock.h
View File

@ -32,8 +32,10 @@ extern struct clk clk_48m;
extern struct clk s5p_clk_27m;
extern struct clk clk_fout_apll;
extern struct clk clk_fout_bpll;
extern struct clk clk_fout_bpll_div2;
extern struct clk clk_fout_cpll;
extern struct clk clk_fout_mpll;
extern struct clk clk_fout_mpll_div2;
extern struct clk clk_fout_epll;
extern struct clk clk_fout_dpll;
extern struct clk clk_fout_vpll;
@ -42,8 +44,10 @@ extern struct clk clk_vpll;
extern struct clksrc_sources clk_src_apll;
extern struct clksrc_sources clk_src_bpll;
extern struct clksrc_sources clk_src_bpll_fout;
extern struct clksrc_sources clk_src_cpll;
extern struct clksrc_sources clk_src_mpll;
extern struct clksrc_sources clk_src_mpll_fout;
extern struct clksrc_sources clk_src_epll;
extern struct clksrc_sources clk_src_dpll;

30
arch/arm/plat-samsung/s5p-clock.c
View File

@ -67,6 +67,11 @@ struct clk clk_fout_bpll = {
.id = -1,
};
struct clk clk_fout_bpll_div2 = {
.name = "fout_bpll_div2",
.id = -1,
};
/* CPLL clock output */
struct clk clk_fout_cpll = {
@ -82,6 +87,11 @@ struct clk clk_fout_mpll = {
.id = -1,
};
struct clk clk_fout_mpll_div2 = {
.name = "fout_mpll_div2",
.id = -1,
};
/* EPLL clock output */
struct clk clk_fout_epll = {
.name = "fout_epll",
@ -125,6 +135,16 @@ struct clksrc_sources clk_src_bpll = {
.nr_sources = ARRAY_SIZE(clk_src_bpll_list),
};
static struct clk *clk_src_bpll_fout_list[] = {
[0] = &clk_fout_bpll_div2,
[1] = &clk_fout_bpll,
};
struct clksrc_sources clk_src_bpll_fout = {
.sources = clk_src_bpll_fout_list,
.nr_sources = ARRAY_SIZE(clk_src_bpll_fout_list),
};
/* Possible clock sources for CPLL Mux */
static struct clk *clk_src_cpll_list[] = {
[0] = &clk_fin_cpll,
@ -147,6 +167,16 @@ struct clksrc_sources clk_src_mpll = {
.nr_sources = ARRAY_SIZE(clk_src_mpll_list),
};
static struct clk *clk_src_mpll_fout_list[] = {
[0] = &clk_fout_mpll_div2,
[1] = &clk_fout_mpll,
};
struct clksrc_sources clk_src_mpll_fout = {
.sources = clk_src_mpll_fout_list,
.nr_sources = ARRAY_SIZE(clk_src_mpll_fout_list),
};
/* Possible clock sources for EPLL Mux */
static struct clk *clk_src_epll_list[] = {
[0] = &clk_fin_epll,