[U-Boot] [PATCH 1/1] clk: rockchip: rk3328: Configure CPU clock

Kever Yang kever.yang at rock-chips.com
Mon Oct 14 09:06:26 UTC 2019


On 2019/10/11 上午3:28, Simon South wrote:
> Add a call to rk3328_configure_cpu() during initialization to set the
> CPU-clock frequency.
>
> Signed-off-by: Simon South <simon at simonsouth.net>

Reviewed-by: Kever Yang<kever.yang at rock-chips.com>


Thanks,
- Kever
> ---
>   arch/arm/include/asm/arch-rockchip/cru_rk3328.h | 3 +++
>   drivers/clk/rockchip/clk_rk3328.c               | 2 ++
>   2 files changed, 5 insertions(+)
>
> diff --git a/arch/arm/include/asm/arch-rockchip/cru_rk3328.h b/arch/arm/include/asm/arch-rockchip/cru_rk3328.h
> index 15b9788d9c..4bf69dbe08 100644
> --- a/arch/arm/include/asm/arch-rockchip/cru_rk3328.h
> +++ b/arch/arm/include/asm/arch-rockchip/cru_rk3328.h
> @@ -66,4 +66,7 @@ enum apll_frequencies {
>   	APLL_600_MHZ,
>   };
>   
> +void rk3328_configure_cpu(struct rk3328_cru *cru,
> +			  enum apll_frequencies apll_freq);
> +
>   #endif	/* __ASM_ARCH_CRU_RK3328_H_ */
> diff --git a/drivers/clk/rockchip/clk_rk3328.c b/drivers/clk/rockchip/clk_rk3328.c
> index a89e2ecc4a..4331048a87 100644
> --- a/drivers/clk/rockchip/clk_rk3328.c
> +++ b/drivers/clk/rockchip/clk_rk3328.c
> @@ -282,6 +282,8 @@ static void rkclk_init(struct rk3328_cru *cru)
>   	u32 hclk_div;
>   	u32 pclk_div;
>   
> +	rk3328_configure_cpu(cru, APLL_600_MHZ);
> +
>   	/* configure gpll cpll */
>   	rkclk_set_pll(cru, CLK_GENERAL, &gpll_init_cfg);
>   	rkclk_set_pll(cru, CLK_CODEC, &cpll_init_cfg);




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