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[13/13] ARM: Exynos: extend soft-reset support for Exynos5420

Message ID 1370516488-25860-13-git-send-email-chander.kashyap@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Chander Kashyap June 6, 2013, 11:01 a.m. UTC
Extend the soft reset support for Exynos5420 SoC.

Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
---
 arch/arm/mach-exynos/common.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Tushar Behera June 6, 2013, 11:44 a.m. UTC | #1
On 06/06/2013 04:31 PM, Chander Kashyap wrote:
> Extend the soft reset support for Exynos5420 SoC.
> 
> Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
> ---
>  arch/arm/mach-exynos/common.c |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
> index fbe1aa7..dc7c134 100644
> --- a/arch/arm/mach-exynos/common.c
> +++ b/arch/arm/mach-exynos/common.c
> @@ -321,7 +321,8 @@ void exynos5_restart(char mode, const char *cmd)
>  	u32 val;
>  	void __iomem *addr;
>  
> -	if (of_machine_is_compatible("samsung,exynos5250")) {
> +	if (of_machine_is_compatible("samsung,exynos5250") ||
> +		(of_machine_is_compatible("samsung,exynos5420"))) {
>  		val = 0x1;
>  		addr = EXYNOS_SWRESET;
>  	} else if (of_machine_is_compatible("samsung,exynos5440")) {
> 

How about making 0x1 and EXYNOS_SWRESET as default values of val and
addr. That way we can remove this check for exynos5250 and exynos5420.
Also we can remove the trailing else statement as there are no non-DT
boards for EXYNOS5.

 void exynos5_restart(char mode, const char *cmd)
 {
        struct device_node *np;
-       u32 val;
-       void __iomem *addr;
+       u32 val = 0x1;
+       void __iomem *addr = EXYNOS_SWRESET;

-       if (of_machine_is_compatible("samsung,exynos5250")) {
-               val = 0x1;
-               addr = EXYNOS_SWRESET;
-       } else if (of_machine_is_compatible("samsung,exynos5440")) {
+       if (of_machine_is_compatible("samsung,exynos5440")) {
                u32 status;
                np = of_find_compatible_node(NULL, NULL,
"samsung,exynos5440-clock");

@@ -336,9 +333,6 @@ void exynos5_restart(char mode, const char *cmd)
                val = __raw_readl(addr);

                val = (val & 0xffff0000) | (status & 0xffff);
-       } else {
-               pr_err("%s: cannot support non-DT\n", __func__);
-               return;
        }
Kim Kukjin June 10, 2013, 8:54 a.m. UTC | #2
Tushar Behera wrote:
> 
> On 06/06/2013 04:31 PM, Chander Kashyap wrote:
> > Extend the soft reset support for Exynos5420 SoC.
> >
> > Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
> > ---
> >  arch/arm/mach-exynos/common.c |    3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
> > index fbe1aa7..dc7c134 100644
> > --- a/arch/arm/mach-exynos/common.c
> > +++ b/arch/arm/mach-exynos/common.c
> > @@ -321,7 +321,8 @@ void exynos5_restart(char mode, const char *cmd)
> >  	u32 val;
> >  	void __iomem *addr;
> >
> > -	if (of_machine_is_compatible("samsung,exynos5250")) {
> > +	if (of_machine_is_compatible("samsung,exynos5250") ||
> > +		(of_machine_is_compatible("samsung,exynos5420"))) {
> >  		val = 0x1;
> >  		addr = EXYNOS_SWRESET;
> >  	} else if (of_machine_is_compatible("samsung,exynos5440")) {
> >
> 
> How about making 0x1 and EXYNOS_SWRESET as default values of val and
> addr. That way we can remove this check for exynos5250 and exynos5420.
> Also we can remove the trailing else statement as there are no non-DT
> boards for EXYNOS5.
> 
>  void exynos5_restart(char mode, const char *cmd)
>  {
>         struct device_node *np;
> -       u32 val;
> -       void __iomem *addr;
> +       u32 val = 0x1;
> +       void __iomem *addr = EXYNOS_SWRESET;
> 
> -       if (of_machine_is_compatible("samsung,exynos5250")) {
> -               val = 0x1;
> -               addr = EXYNOS_SWRESET;
> -       } else if (of_machine_is_compatible("samsung,exynos5440")) {
> +       if (of_machine_is_compatible("samsung,exynos5440")) {
>                 u32 status;
>                 np = of_find_compatible_node(NULL, NULL,
> "samsung,exynos5440-clock");
> 
> @@ -336,9 +333,6 @@ void exynos5_restart(char mode, const char *cmd)
>                 val = __raw_readl(addr);
> 
>                 val = (val & 0xffff0000) | (status & 0xffff);
> -       } else {
> -               pr_err("%s: cannot support non-DT\n", __func__);
> -               return;
>         }
> 
> --

Yeah, looks better.

- Kukjin
Chander Kashyap June 11, 2013, 1:24 p.m. UTC | #3
On 10 June 2013 14:24, Kukjin Kim <kgene.kim@samsung.com> wrote:
> Tushar Behera wrote:
>>
>> On 06/06/2013 04:31 PM, Chander Kashyap wrote:
>> > Extend the soft reset support for Exynos5420 SoC.
>> >
>> > Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
>> > ---
>> >  arch/arm/mach-exynos/common.c |    3 ++-
>> >  1 file changed, 2 insertions(+), 1 deletion(-)
>> >
>> > diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
>> > index fbe1aa7..dc7c134 100644
>> > --- a/arch/arm/mach-exynos/common.c
>> > +++ b/arch/arm/mach-exynos/common.c
>> > @@ -321,7 +321,8 @@ void exynos5_restart(char mode, const char *cmd)
>> >     u32 val;
>> >     void __iomem *addr;
>> >
>> > -   if (of_machine_is_compatible("samsung,exynos5250")) {
>> > +   if (of_machine_is_compatible("samsung,exynos5250") ||
>> > +           (of_machine_is_compatible("samsung,exynos5420"))) {
>> >             val = 0x1;
>> >             addr = EXYNOS_SWRESET;
>> >     } else if (of_machine_is_compatible("samsung,exynos5440")) {
>> >
>>
>> How about making 0x1 and EXYNOS_SWRESET as default values of val and
>> addr. That way we can remove this check for exynos5250 and exynos5420.
>> Also we can remove the trailing else statement as there are no non-DT
>> boards for EXYNOS5.
>>
>>  void exynos5_restart(char mode, const char *cmd)
>>  {
>>         struct device_node *np;
>> -       u32 val;
>> -       void __iomem *addr;
>> +       u32 val = 0x1;
>> +       void __iomem *addr = EXYNOS_SWRESET;
>>
>> -       if (of_machine_is_compatible("samsung,exynos5250")) {
>> -               val = 0x1;
>> -               addr = EXYNOS_SWRESET;
>> -       } else if (of_machine_is_compatible("samsung,exynos5440")) {
>> +       if (of_machine_is_compatible("samsung,exynos5440")) {
>>                 u32 status;
>>                 np = of_find_compatible_node(NULL, NULL,
>> "samsung,exynos5440-clock");
>>
>> @@ -336,9 +333,6 @@ void exynos5_restart(char mode, const char *cmd)
>>                 val = __raw_readl(addr);
>>
>>                 val = (val & 0xffff0000) | (status & 0xffff);
>> -       } else {
>> -               pr_err("%s: cannot support non-DT\n", __func__);
>> -               return;
>>         }
>>
>> --
>
> Yeah, looks better.

Yes i will do the change. Thanks
>
> - Kukjin
>



--
with warm regards,
Chander Kashyap
diff mbox

Patch

diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index fbe1aa7..dc7c134 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -321,7 +321,8 @@  void exynos5_restart(char mode, const char *cmd)
 	u32 val;
 	void __iomem *addr;
 
-	if (of_machine_is_compatible("samsung,exynos5250")) {
+	if (of_machine_is_compatible("samsung,exynos5250") ||
+		(of_machine_is_compatible("samsung,exynos5420"))) {
 		val = 0x1;
 		addr = EXYNOS_SWRESET;
 	} else if (of_machine_is_compatible("samsung,exynos5440")) {