* [PATCH] clk: stm32mp1: fix CK_MPU calculation
@ 2020-04-24 13:47 Patrick Delaunay
2020-05-11 14:00 ` Patrice CHOTARD
2020-05-14 9:42 ` Patrick DELAUNAY
0 siblings, 2 replies; 3+ messages in thread
From: Patrick Delaunay @ 2020-04-24 13:47 UTC (permalink / raw)
To: u-boot
From: Lionel Debieve <lionel.debieve@st.com>
When the CK_MPU used PLL1_MPUDIV, the current rate is
wrong. The clock must use stm32mp1_mpu_div as a shift
value. Fix the check value used to enter PLL_MPUDIV.
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
---
drivers/clk/clk_stm32mp1.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/clk/clk_stm32mp1.c b/drivers/clk/clk_stm32mp1.c
index 50df8425bf..0d0ea43fd2 100644
--- a/drivers/clk/clk_stm32mp1.c
+++ b/drivers/clk/clk_stm32mp1.c
@@ -954,10 +954,11 @@ static ulong stm32mp1_clk_get(struct stm32mp1_clk_priv *priv, int p)
case RCC_MPCKSELR_PLL:
case RCC_MPCKSELR_PLL_MPUDIV:
clock = stm32mp1_read_pll_freq(priv, _PLL1, _DIV_P);
- if (p == RCC_MPCKSELR_PLL_MPUDIV) {
+ if ((reg & RCC_SELR_SRC_MASK) ==
+ RCC_MPCKSELR_PLL_MPUDIV) {
reg = readl(priv->base + RCC_MPCKDIVR);
- clock /= stm32mp1_mpu_div[reg &
- RCC_MPUDIV_MASK];
+ clock >>= stm32mp1_mpu_div[reg &
+ RCC_MPUDIV_MASK];
}
break;
}
--
2.17.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH] clk: stm32mp1: fix CK_MPU calculation
2020-04-24 13:47 [PATCH] clk: stm32mp1: fix CK_MPU calculation Patrick Delaunay
@ 2020-05-11 14:00 ` Patrice CHOTARD
2020-05-14 9:42 ` Patrick DELAUNAY
1 sibling, 0 replies; 3+ messages in thread
From: Patrice CHOTARD @ 2020-05-11 14:00 UTC (permalink / raw)
To: u-boot
On 4/24/20 3:47 PM, Patrick Delaunay wrote:
> From: Lionel Debieve <lionel.debieve@st.com>
>
> When the CK_MPU used PLL1_MPUDIV, the current rate is
> wrong. The clock must use stm32mp1_mpu_div as a shift
> value. Fix the check value used to enter PLL_MPUDIV.
>
> Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
> Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
> ---
>
> drivers/clk/clk_stm32mp1.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/clk/clk_stm32mp1.c b/drivers/clk/clk_stm32mp1.c
> index 50df8425bf..0d0ea43fd2 100644
> --- a/drivers/clk/clk_stm32mp1.c
> +++ b/drivers/clk/clk_stm32mp1.c
> @@ -954,10 +954,11 @@ static ulong stm32mp1_clk_get(struct stm32mp1_clk_priv *priv, int p)
> case RCC_MPCKSELR_PLL:
> case RCC_MPCKSELR_PLL_MPUDIV:
> clock = stm32mp1_read_pll_freq(priv, _PLL1, _DIV_P);
> - if (p == RCC_MPCKSELR_PLL_MPUDIV) {
> + if ((reg & RCC_SELR_SRC_MASK) ==
> + RCC_MPCKSELR_PLL_MPUDIV) {
> reg = readl(priv->base + RCC_MPCKDIVR);
> - clock /= stm32mp1_mpu_div[reg &
> - RCC_MPUDIV_MASK];
> + clock >>= stm32mp1_mpu_div[reg &
> + RCC_MPUDIV_MASK];
> }
> break;
> }
>
> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
>
> Thanks
>
> Patrice
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] clk: stm32mp1: fix CK_MPU calculation
2020-04-24 13:47 [PATCH] clk: stm32mp1: fix CK_MPU calculation Patrick Delaunay
2020-05-11 14:00 ` Patrice CHOTARD
@ 2020-05-14 9:42 ` Patrick DELAUNAY
1 sibling, 0 replies; 3+ messages in thread
From: Patrick DELAUNAY @ 2020-05-14 9:42 UTC (permalink / raw)
To: u-boot
Hi,
> From: Patrick DELAUNAY <patrick.delaunay@st.com>
> Sent: vendredi 24 avril 2020 15:48
> To: u-boot at lists.denx.de
> Cc: Lionel DEBIEVE <lionel.debieve@st.com>; Patrick DELAUNAY
> <patrick.delaunay@st.com>; Lukasz Majewski <lukma@denx.de>; Patrice
> CHOTARD <patrice.chotard@st.com>; U-Boot STM32 <uboot-stm32@st-md-
> mailman.stormreply.com>
> Subject: [PATCH] clk: stm32mp1: fix CK_MPU calculation
> Importance: High
>
> From: Lionel Debieve <lionel.debieve@st.com>
>
> When the CK_MPU used PLL1_MPUDIV, the current rate is wrong. The clock
> must use stm32mp1_mpu_div as a shift value. Fix the check value used to enter
> PLL_MPUDIV.
>
> Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
> Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
> ---
>
> drivers/clk/clk_stm32mp1.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
Applied to u-boot-stm/master, thanks!
Regards
Patrick
^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-04-24 13:47 [PATCH] clk: stm32mp1: fix CK_MPU calculation Patrick Delaunay
2020-05-11 14:00 ` Patrice CHOTARD
2020-05-14 9:42 ` Patrick DELAUNAY
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