diff mbox

clk: imx7d: Fix the powerdown bit location of PLL DDR

Message ID 1494791940-12499-1-git-send-email-festevam@gmail.com (mailing list archive)
State Superseded
Delegated to: Stephen Boyd
Headers show

Commit Message

Fabio Estevam May 14, 2017, 7:59 p.m. UTC 
From: Fabio Estevam <fabio.estevam@nxp.com>

According to the MX7D Reference Manual the powerdown bit of
CCM_ANALOG_PLL_DDRn register is bit 20, so fix it accordingly.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
---
 drivers/clk/imx/clk-imx7d.c | 2 +-
 drivers/clk/imx/clk-pllv3.c | 5 +++++
 drivers/clk/imx/clk.h       | 1 +
 3 files changed, 7 insertions(+), 1 deletion(-)

Comments

Stefan Agner May 15, 2017, 5:54 a.m. UTC | #1 
On 2017-05-14 12:59, Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam@nxp.com>
> 
> According to the MX7D Reference Manual the powerdown bit of
> CCM_ANALOG_PLL_DDRn register is bit 20, so fix it accordingly.
> 
> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
> ---
>  drivers/clk/imx/clk-imx7d.c | 2 +-
>  drivers/clk/imx/clk-pllv3.c | 5 +++++
>  drivers/clk/imx/clk.h       | 1 +
>  3 files changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/clk/imx/clk-imx7d.c b/drivers/clk/imx/clk-imx7d.c
> index 93b0364..8fa1841 100644
> --- a/drivers/clk/imx/clk-imx7d.c
> +++ b/drivers/clk/imx/clk-imx7d.c
> @@ -424,7 +424,7 @@ static void __init imx7d_clocks_init(struct
> device_node *ccm_node)
>  	clks[IMX7D_PLL_VIDEO_MAIN_SRC] = imx_clk_mux("pll_video_main_src",
> base + 0x130, 14, 2, pll_bypass_src_sel,
> ARRAY_SIZE(pll_bypass_src_sel));
>  
>  	clks[IMX7D_PLL_ARM_MAIN]  = imx_clk_pllv3(IMX_PLLV3_SYS,
> "pll_arm_main", "osc", base + 0x60, 0x7f);
> -	clks[IMX7D_PLL_DRAM_MAIN] = imx_clk_pllv3(IMX_PLLV3_AV,
> "pll_dram_main", "osc", base + 0x70, 0x7f);
> +	clks[IMX7D_PLL_DRAM_MAIN] = imx_clk_pllv3(IMX_PLLV3_DDR_IMX7,
> "pll_dram_main", "osc", base + 0x70, 0x7f);
>  	clks[IMX7D_PLL_SYS_MAIN]  = imx_clk_pllv3(IMX_PLLV3_GENERIC,
> "pll_sys_main", "osc", base + 0xb0, 0x1);
>  	clks[IMX7D_PLL_ENET_MAIN] = imx_clk_pllv3(IMX_PLLV3_ENET_IMX7,
> "pll_enet_main", "osc", base + 0xe0, 0x0);
>  	clks[IMX7D_PLL_AUDIO_MAIN] = imx_clk_pllv3(IMX_PLLV3_AV,
> "pll_audio_main", "osc", base + 0xf0, 0x7f);
> diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c
> index f109916..fec64b6 100644
> --- a/drivers/clk/imx/clk-pllv3.c
> +++ b/drivers/clk/imx/clk-pllv3.c
> @@ -25,6 +25,7 @@
>  #define PLL_VF610_DENOM_OFFSET	0x30
>  
>  #define BM_PLL_POWER		(0x1 << 12)
> +#define BM_PLL_POWER_IMX7	(0x1 << 20)

BM_PLL_POWER_IMX7_DDR?

The other PLL on i.MX 7 still have it at 12...

Otherwise looks good to me!

Reviewed-by: Stefan Agner <stefan@agner.ch>

--
Stefan


>  #define BM_PLL_LOCK		(0x1 << 31)
>  #define IMX7_ENET_PLL_POWER	(0x1 << 5)
>  
> @@ -451,6 +452,10 @@ struct clk *imx_clk_pllv3(enum imx_pllv3_type
> type, const char *name,
>  		pll->ref_clock = 500000000;
>  		ops = &clk_pllv3_enet_ops;
>  		break;
> +	case IMX_PLLV3_DDR_IMX7:
> +		ops = &clk_pllv3_av_ops;
> +		pll->power_bit = BM_PLL_POWER_IMX7;
> +		break;
>  	default:
>  		ops = &clk_pllv3_ops;
>  	}
> diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
> index e1f5e42..d54f072 100644
> --- a/drivers/clk/imx/clk.h
> +++ b/drivers/clk/imx/clk.h
> @@ -35,6 +35,7 @@ enum imx_pllv3_type {
>  	IMX_PLLV3_ENET,
>  	IMX_PLLV3_ENET_IMX7,
>  	IMX_PLLV3_SYS_VF610,
> +	IMX_PLLV3_DDR_IMX7,
>  };
>  
>  struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name,
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Fabio Estevam May 15, 2017, 11:35 a.m. UTC | #2 
On Mon, May 15, 2017 at 2:54 AM, Stefan Agner <stefan@agner.ch> wrote:

> BM_PLL_POWER_IMX7_DDR?

I will name it IMX7_DDR_PLL_POWER to make it consistent with
IMX7_ENET_PLL_POWER.

> The other PLL on i.MX 7 still have it at 12...

PLL Audio and Video have the powerdown bit at 12, ENET has it at bit 5
and is already handled by the special IMX7_ENET_PLL_POWER.

Will send a v2 with just the bit rename.

Thanks
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diff mbox

Patch

diff --git a/drivers/clk/imx/clk-imx7d.c b/drivers/clk/imx/clk-imx7d.c
index 93b0364..8fa1841 100644
--- a/drivers/clk/imx/clk-imx7d.c
+++ b/drivers/clk/imx/clk-imx7d.c
@@ -424,7 +424,7 @@  static void __init imx7d_clocks_init(struct device_node *ccm_node)
 	clks[IMX7D_PLL_VIDEO_MAIN_SRC] = imx_clk_mux("pll_video_main_src", base + 0x130, 14, 2, pll_bypass_src_sel, ARRAY_SIZE(pll_bypass_src_sel));
 
 	clks[IMX7D_PLL_ARM_MAIN]  = imx_clk_pllv3(IMX_PLLV3_SYS, "pll_arm_main", "osc", base + 0x60, 0x7f);
-	clks[IMX7D_PLL_DRAM_MAIN] = imx_clk_pllv3(IMX_PLLV3_AV, "pll_dram_main", "osc", base + 0x70, 0x7f);
+	clks[IMX7D_PLL_DRAM_MAIN] = imx_clk_pllv3(IMX_PLLV3_DDR_IMX7, "pll_dram_main", "osc", base + 0x70, 0x7f);
 	clks[IMX7D_PLL_SYS_MAIN]  = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll_sys_main", "osc", base + 0xb0, 0x1);
 	clks[IMX7D_PLL_ENET_MAIN] = imx_clk_pllv3(IMX_PLLV3_ENET_IMX7, "pll_enet_main", "osc", base + 0xe0, 0x0);
 	clks[IMX7D_PLL_AUDIO_MAIN] = imx_clk_pllv3(IMX_PLLV3_AV, "pll_audio_main", "osc", base + 0xf0, 0x7f);
diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c
index f109916..fec64b6 100644
--- a/drivers/clk/imx/clk-pllv3.c
+++ b/drivers/clk/imx/clk-pllv3.c
@@ -25,6 +25,7 @@ 
 #define PLL_VF610_DENOM_OFFSET	0x30
 
 #define BM_PLL_POWER		(0x1 << 12)
+#define BM_PLL_POWER_IMX7	(0x1 << 20)
 #define BM_PLL_LOCK		(0x1 << 31)
 #define IMX7_ENET_PLL_POWER	(0x1 << 5)
 
@@ -451,6 +452,10 @@  struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name,
 		pll->ref_clock = 500000000;
 		ops = &clk_pllv3_enet_ops;
 		break;
+	case IMX_PLLV3_DDR_IMX7:
+		ops = &clk_pllv3_av_ops;
+		pll->power_bit = BM_PLL_POWER_IMX7;
+		break;
 	default:
 		ops = &clk_pllv3_ops;
 	}
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index e1f5e42..d54f072 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -35,6 +35,7 @@  enum imx_pllv3_type {
 	IMX_PLLV3_ENET,
 	IMX_PLLV3_ENET_IMX7,
 	IMX_PLLV3_SYS_VF610,
+	IMX_PLLV3_DDR_IMX7,
 };
 
 struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name,