[alsa-devel] [PATCH 7/10] ARM: S5PV210: Fix wrong EPLL rate getting on setup clocks

Kukjin Kim kgene.kim at samsung.com
Fri Oct 8 12:37:00 CEST 2010


Seungwhan Youn wrote:
> 
> This patch fix wrong EPLL getting on setup clocks on S5PV210.
> 
> Signed-off-by: Seungwhan Youn <sw.youn at samsung.com>
> ---
>  arch/arm/mach-s5pv210/clock.c                   |    3 ++-
>  arch/arm/mach-s5pv210/include/mach/regs-clock.h |    3 ++-
>  2 files changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/mach-s5pv210/clock.c b/arch/arm/mach-s5pv210/clock.c
> index 3f3b7ba..bcbe7e9 100644
> --- a/arch/arm/mach-s5pv210/clock.c
> +++ b/arch/arm/mach-s5pv210/clock.c
> @@ -1040,7 +1040,8 @@ void __init_or_cpufreq s5pv210_setup_clocks(void)
> 
>  	apll = s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON), pll_4508);
>  	mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P_MPLL_CON), pll_4502);
> -	epll = s5p_get_pll45xx(xtal, __raw_readl(S5P_EPLL_CON), pll_4500);
> +	epll = s5p_get_pll90xx(xtal, __raw_readl(S5P_EPLL_CON0),
> +				__raw_readl(S5P_EPLL_CON1));

Maybe you wanted to implement fractional PLL 4600B...not used 90xx in there.
So need to update plat/pll.h to epll of s5pv210.

>  	vpllsrc = clk_get_rate(&clk_vpllsrc.clk);
>  	vpll = s5p_get_pll45xx(vpllsrc, __raw_readl(S5P_VPLL_CON),
pll_4502);
> 
> diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
b/arch/arm/mach-
> s5pv210/include/mach/regs-clock.h
> index 499aef7..5968535 100644
> --- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
> +++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
> @@ -24,7 +24,8 @@
> 
>  #define S5P_APLL_CON		S5P_CLKREG(0x100)
>  #define S5P_MPLL_CON		S5P_CLKREG(0x108)
> -#define S5P_EPLL_CON		S5P_CLKREG(0x110)
> +#define S5P_EPLL_CON0		S5P_CLKREG(0x110)
> +#define S5P_EPLL_CON1		S5P_CLKREG(0x114)
>  #define S5P_VPLL_CON		S5P_CLKREG(0x120)
> 
>  #define S5P_CLK_SRC0		S5P_CLKREG(0x200)
> --


Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim at samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.



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