diff mbox

[U-Boot,6/8] imx: mx6qp: Enable PRG clock for IPU

Message ID 1433923603-28119-6-git-send-email-Peng.Fan@freescale.com
State Changes Requested
Headers show

Commit Message

Peng Fan June 10, 2015, 8:06 a.m. UTC 
From: "Ye.Li" <B37916@freescale.com>

The i.MX6QP has a PRG module, need to enable its clock for using
IPU.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Signed-off-by: Brown Oliver <B37094@freescale.com>
Signed-off-by: Ye.Li <B37916@freescale.com>
---
 arch/arm/cpu/armv7/mx6/clock.c | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Stefano Babic June 10, 2015, 9:24 a.m. UTC | #1 
On 10/06/2015 10:06, Peng Fan wrote:
> From: "Ye.Li" <B37916@freescale.com>
> 
> The i.MX6QP has a PRG module, need to enable its clock for using
> IPU.
> 
> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
> Signed-off-by: Brown Oliver <B37094@freescale.com>
> Signed-off-by: Ye.Li <B37916@freescale.com>
> ---
>  arch/arm/cpu/armv7/mx6/clock.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
> index 36cd5a8..ae1b4cc 100644
> --- a/arch/arm/cpu/armv7/mx6/clock.c
> +++ b/arch/arm/cpu/armv7/mx6/clock.c
> @@ -861,6 +861,12 @@ void enable_ipu_clock(void)
>  	reg = readl(&mxc_ccm->CCGR3);
>  	reg |= MXC_CCM_CCGR3_IPU1_IPU_MASK;
>  	writel(reg, &mxc_ccm->CCGR3);
> +
> +#ifdef CONFIG_MX6QP
> +	reg = readl(&mxc_ccm->CCGR6);
> +	reg |= MXC_CCM_CCGR6_PRG_CLK0_MASK;
> +	writel(reg, &mxc_ccm->CCGR6);

This is easy to replace with runtime detection.

> +#endif
>  }
>  #endif
>  /***************************************************/
> 

Best regards,
Stefano Babic
Peng Fan June 10, 2015, 10:04 a.m. UTC | #2 
On Wed, Jun 10, 2015 at 11:24:04AM +0200, Stefano Babic wrote:
>On 10/06/2015 10:06, Peng Fan wrote:
>> From: "Ye.Li" <B37916@freescale.com>
>> 
>> The i.MX6QP has a PRG module, need to enable its clock for using
>> IPU.
>> 
>> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
>> Signed-off-by: Brown Oliver <B37094@freescale.com>
>> Signed-off-by: Ye.Li <B37916@freescale.com>
>> ---
>>  arch/arm/cpu/armv7/mx6/clock.c | 6 ++++++
>>  1 file changed, 6 insertions(+)
>> 
>> diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
>> index 36cd5a8..ae1b4cc 100644
>> --- a/arch/arm/cpu/armv7/mx6/clock.c
>> +++ b/arch/arm/cpu/armv7/mx6/clock.c
>> @@ -861,6 +861,12 @@ void enable_ipu_clock(void)
>>  	reg = readl(&mxc_ccm->CCGR3);
>>  	reg |= MXC_CCM_CCGR3_IPU1_IPU_MASK;
>>  	writel(reg, &mxc_ccm->CCGR3);
>> +
>> +#ifdef CONFIG_MX6QP
>> +	reg = readl(&mxc_ccm->CCGR6);
>> +	reg |= MXC_CCM_CCGR6_PRG_CLK0_MASK;
>> +	writel(reg, &mxc_ccm->CCGR6);
>
>This is easy to replace with runtime detection.

Will fix in v2.

>
>> +#endif
>>  }
>>  #endif
>>  /***************************************************/
>> 
>
>Best regards,
>Stefano Babic
>
>-- 
>=====================================================================
>DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
>HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
>Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic@denx.de
>=====================================================================

Regards,
Peng
diff mbox

Patch

diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
index 36cd5a8..ae1b4cc 100644
--- a/arch/arm/cpu/armv7/mx6/clock.c
+++ b/arch/arm/cpu/armv7/mx6/clock.c
@@ -861,6 +861,12 @@  void enable_ipu_clock(void)
 	reg = readl(&mxc_ccm->CCGR3);
 	reg |= MXC_CCM_CCGR3_IPU1_IPU_MASK;
 	writel(reg, &mxc_ccm->CCGR3);
+
+#ifdef CONFIG_MX6QP
+	reg = readl(&mxc_ccm->CCGR6);
+	reg |= MXC_CCM_CCGR6_PRG_CLK0_MASK;
+	writel(reg, &mxc_ccm->CCGR6);
+#endif
 }
 #endif
 /***************************************************/