linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH] ARM: exynos: add UART3 to DEBUG_LL ports
@ 2012-11-20 22:48 Doug Anderson
  2012-11-21  7:29 ` Olof Johansson
  2012-11-21 16:54 ` [PATCH v2] " Doug Anderson
  0 siblings, 2 replies; 6+ messages in thread
From: Doug Anderson @ 2012-11-20 22:48 UTC (permalink / raw)
  To: linux-samsung-soc
  Cc: Olof Johansson, Thomas Abraham, Kukjin Kim, Doug Anderson,
	Russell King, Ben Dooks, linux-arm-kernel, linux-kernel

From: Olof Johansson <olof@lixom.net>

UART3 is used for debugging on exynos5250-snow.

[dianders: cleaned commit message.]

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Doug Anderson <dianders@chromium.org>

---
 arch/arm/Kconfig.debug        |   11 +++++++++++
 arch/arm/plat-samsung/Kconfig |    1 +
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 33a8930..35ba7dc 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -355,6 +355,17 @@ choice
 		  The uncompressor code port configuration is now handled
 		  by CONFIG_S3C_LOWLEVEL_UART_PORT.
 
+	config DEBUG_S3C_UART3
+		depends on PLAT_SAMSUNG
+		bool "Use S3C UART 3 for low-level debug"
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to UART 3. The port must have been initialised
+		  by the boot-loader before use.
+
+		  The uncompressor code port configuration is now handled
+		  by CONFIG_S3C_LOWLEVEL_UART_PORT.
+
 	config DEBUG_SOCFPGA_UART
 		depends on ARCH_SOCFPGA
 		bool "Use SOCFPGA UART for low-level debug"
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 59401e1..d342ed0 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -502,5 +502,6 @@ config DEBUG_S3C_UART
 	default "0" if DEBUG_S3C_UART0
 	default "1" if DEBUG_S3C_UART1
 	default "2" if DEBUG_S3C_UART2
+	default "3" if DEBUG_S3C_UART3
 
 endif
-- 
1.7.7.3


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCH] ARM: exynos: add UART3 to DEBUG_LL ports
  2012-11-20 22:48 [PATCH] ARM: exynos: add UART3 to DEBUG_LL ports Doug Anderson
@ 2012-11-21  7:29 ` Olof Johansson
  2012-11-21  9:49   ` Kukjin Kim
  2012-11-21 16:58   ` Doug Anderson
  2012-11-21 16:54 ` [PATCH v2] " Doug Anderson
  1 sibling, 2 replies; 6+ messages in thread
From: Olof Johansson @ 2012-11-21  7:29 UTC (permalink / raw)
  To: Doug Anderson
  Cc: linux-samsung-soc, Thomas Abraham, Kukjin Kim, Russell King,
	Ben Dooks, linux-arm-kernel, linux-kernel

On Tue, Nov 20, 2012 at 02:48:58PM -0800, Doug Anderson wrote:
> From: Olof Johansson <olof@lixom.net>
> 
> UART3 is used for debugging on exynos5250-snow.
> 
> [dianders: cleaned commit message.]
> 
> Signed-off-by: Olof Johansson <olof@lixom.net>
> Signed-off-by: Doug Anderson <dianders@chromium.org>

> 
> ---
>  arch/arm/Kconfig.debug        |   11 +++++++++++
>  arch/arm/plat-samsung/Kconfig |    1 +
>  2 files changed, 12 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> index 33a8930..35ba7dc 100644
> --- a/arch/arm/Kconfig.debug
> +++ b/arch/arm/Kconfig.debug
> @@ -355,6 +355,17 @@ choice
>  		  The uncompressor code port configuration is now handled
>  		  by CONFIG_S3C_LOWLEVEL_UART_PORT.
>  
> +	config DEBUG_S3C_UART3
> +		depends on PLAT_SAMSUNG


Sorry, the reason I hadn't re-posted this is that Kukjin had proposed
to protect users of <= 3 UART platforms to select it. An added "Depends
on ARCH_EXYNOS4 || ARCH_EXYNOS5" should cover that. Can you add and
repost, please?


-Olof

^ permalink raw reply	[flat|nested] 6+ messages in thread

* RE: [PATCH] ARM: exynos: add UART3 to DEBUG_LL ports
  2012-11-21  7:29 ` Olof Johansson
@ 2012-11-21  9:49   ` Kukjin Kim
  2012-11-21 16:58   ` Doug Anderson
  1 sibling, 0 replies; 6+ messages in thread
From: Kukjin Kim @ 2012-11-21  9:49 UTC (permalink / raw)
  To: 'Olof Johansson', 'Doug Anderson'
  Cc: linux-samsung-soc, 'Thomas Abraham',
	'Russell King', 'Ben Dooks',
	linux-arm-kernel, linux-kernel

Olof Johansson wrote:
> 
> On Tue, Nov 20, 2012 at 02:48:58PM -0800, Doug Anderson wrote:
> > From: Olof Johansson <olof@lixom.net>
> >
> > UART3 is used for debugging on exynos5250-snow.
> >
> > [dianders: cleaned commit message.]
> >
> > Signed-off-by: Olof Johansson <olof@lixom.net>
> > Signed-off-by: Doug Anderson <dianders@chromium.org>
> 
> >
> > ---
> >  arch/arm/Kconfig.debug        |   11 +++++++++++
> >  arch/arm/plat-samsung/Kconfig |    1 +
> >  2 files changed, 12 insertions(+), 0 deletions(-)
> >
> > diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> > index 33a8930..35ba7dc 100644
> > --- a/arch/arm/Kconfig.debug
> > +++ b/arch/arm/Kconfig.debug
> > @@ -355,6 +355,17 @@ choice
> >  		  The uncompressor code port configuration is now handled
> >  		  by CONFIG_S3C_LOWLEVEL_UART_PORT.
> >
> > +	config DEBUG_S3C_UART3
> > +		depends on PLAT_SAMSUNG
> 
> 
> Sorry, the reason I hadn't re-posted this is that Kukjin had proposed
> to protect users of <= 3 UART platforms to select it. An added "Depends
> on ARCH_EXYNOS4 || ARCH_EXYNOS5" should cover that. Can you add and
> repost, please?
> 
Yes, please :-)

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [PATCH v2] ARM: exynos: add UART3 to DEBUG_LL ports
  2012-11-20 22:48 [PATCH] ARM: exynos: add UART3 to DEBUG_LL ports Doug Anderson
  2012-11-21  7:29 ` Olof Johansson
@ 2012-11-21 16:54 ` Doug Anderson
  2012-11-22  6:50   ` Kukjin Kim
  1 sibling, 1 reply; 6+ messages in thread
From: Doug Anderson @ 2012-11-21 16:54 UTC (permalink / raw)
  To: linux-samsung-soc, Kukjin Kim, Olof Johansson
  Cc: Thomas Abraham, Doug Anderson, Russell King, Ben Dooks,
	linux-arm-kernel, linux-kernel

From: Olof Johansson <olof@lixom.net>

Add support for using UART3 for DEBUG_LL on exynos.

[dianders: added depend on ARCH_EXYNOS.]

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Doug Anderson <dianders@chromium.org>

---
Changes in v2:
- Matched Olof's commit message.
- Added ARCH_EXYNOS to depend list.

 arch/arm/Kconfig.debug        |   11 +++++++++++
 arch/arm/plat-samsung/Kconfig |    1 +
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 33a8930..f54f170 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -355,6 +355,17 @@ choice
 		  The uncompressor code port configuration is now handled
 		  by CONFIG_S3C_LOWLEVEL_UART_PORT.
 
+	config DEBUG_S3C_UART3
+		depends on PLAT_SAMSUNG && ARCH_EXYNOS
+		bool "Use S3C UART 3 for low-level debug"
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to UART 3. The port must have been initialised
+		  by the boot-loader before use.
+
+		  The uncompressor code port configuration is now handled
+		  by CONFIG_S3C_LOWLEVEL_UART_PORT.
+
 	config DEBUG_SOCFPGA_UART
 		depends on ARCH_SOCFPGA
 		bool "Use SOCFPGA UART for low-level debug"
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 59401e1..d342ed0 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -502,5 +502,6 @@ config DEBUG_S3C_UART
 	default "0" if DEBUG_S3C_UART0
 	default "1" if DEBUG_S3C_UART1
 	default "2" if DEBUG_S3C_UART2
+	default "3" if DEBUG_S3C_UART3
 
 endif
-- 
1.7.7.3


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCH] ARM: exynos: add UART3 to DEBUG_LL ports
  2012-11-21  7:29 ` Olof Johansson
  2012-11-21  9:49   ` Kukjin Kim
@ 2012-11-21 16:58   ` Doug Anderson
  1 sibling, 0 replies; 6+ messages in thread
From: Doug Anderson @ 2012-11-21 16:58 UTC (permalink / raw)
  To: Olof Johansson
  Cc: linux-samsung-soc, Thomas Abraham, Kukjin Kim, Russell King,
	Ben Dooks, linux-arm-kernel, linux-kernel

On Tue, Nov 20, 2012 at 11:29 PM, Olof Johansson <olof@lixom.net> wrote:
>
> On Tue, Nov 20, 2012 at 02:48:58PM -0800, Doug Anderson wrote:
> > From: Olof Johansson <olof@lixom.net>
> >
> > UART3 is used for debugging on exynos5250-snow.
> >
> > [dianders: cleaned commit message.]
> >
> > Signed-off-by: Olof Johansson <olof@lixom.net>
> > Signed-off-by: Doug Anderson <dianders@chromium.org>
>
> >
> > ---
> >  arch/arm/Kconfig.debug        |   11 +++++++++++
> >  arch/arm/plat-samsung/Kconfig |    1 +
> >  2 files changed, 12 insertions(+), 0 deletions(-)
> >
> > diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> > index 33a8930..35ba7dc 100644
> > --- a/arch/arm/Kconfig.debug
> > +++ b/arch/arm/Kconfig.debug
> > @@ -355,6 +355,17 @@ choice
> >                 The uncompressor code port configuration is now handled
> >                 by CONFIG_S3C_LOWLEVEL_UART_PORT.
> >
> > +     config DEBUG_S3C_UART3
> > +             depends on PLAT_SAMSUNG
>
>
> Sorry, the reason I hadn't re-posted this is that Kukjin had proposed
> to protect users of <= 3 UART platforms to select it. An added "Depends
> on ARCH_EXYNOS4 || ARCH_EXYNOS5" should cover that. Can you add and
> repost, please?

Doh!  I hadn't even noticed that you'd already posted this--I got mine
from the Chrome OS tree directly.  Sorry about that...

I've added an && for ARCH_EXYNOS which seems reasonable.  I left
PLAT_SAMSUNG as a depend though technically ARCH_EXYNOS does select
PLAT_SAMSUNG through a convoluted series of other config options.

-Doug

^ permalink raw reply	[flat|nested] 6+ messages in thread

* RE: [PATCH v2] ARM: exynos: add UART3 to DEBUG_LL ports
  2012-11-21 16:54 ` [PATCH v2] " Doug Anderson
@ 2012-11-22  6:50   ` Kukjin Kim
  0 siblings, 0 replies; 6+ messages in thread
From: Kukjin Kim @ 2012-11-22  6:50 UTC (permalink / raw)
  To: 'Doug Anderson', linux-samsung-soc, 'Olof Johansson'
  Cc: 'Thomas Abraham', 'Russell King',
	'Ben Dooks',
	linux-arm-kernel, linux-kernel

Doug Anderson wrote:
> 
> From: Olof Johansson <olof@lixom.net>
> 
> Add support for using UART3 for DEBUG_LL on exynos.
> 
> [dianders: added depend on ARCH_EXYNOS.]
> 
> Signed-off-by: Olof Johansson <olof@lixom.net>
> Signed-off-by: Doug Anderson <dianders@chromium.org>
> 
> ---
> Changes in v2:
> - Matched Olof's commit message.
> - Added ARCH_EXYNOS to depend list.
> 
>  arch/arm/Kconfig.debug        |   11 +++++++++++
>  arch/arm/plat-samsung/Kconfig |    1 +
>  2 files changed, 12 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> index 33a8930..f54f170 100644
> --- a/arch/arm/Kconfig.debug
> +++ b/arch/arm/Kconfig.debug
> @@ -355,6 +355,17 @@ choice
>  		  The uncompressor code port configuration is now handled
>  		  by CONFIG_S3C_LOWLEVEL_UART_PORT.
> 
> +	config DEBUG_S3C_UART3
> +		depends on PLAT_SAMSUNG && ARCH_EXYNOS
> +		bool "Use S3C UART 3 for low-level debug"
> +		help
> +		  Say Y here if you want the debug print routines to direct
> +		  their output to UART 3. The port must have been
initialised
> +		  by the boot-loader before use.
> +
> +		  The uncompressor code port configuration is now handled
> +		  by CONFIG_S3C_LOWLEVEL_UART_PORT.
> +
>  	config DEBUG_SOCFPGA_UART
>  		depends on ARCH_SOCFPGA
>  		bool "Use SOCFPGA UART for low-level debug"
> diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
> index 59401e1..d342ed0 100644
> --- a/arch/arm/plat-samsung/Kconfig
> +++ b/arch/arm/plat-samsung/Kconfig
> @@ -502,5 +502,6 @@ config DEBUG_S3C_UART
>  	default "0" if DEBUG_S3C_UART0
>  	default "1" if DEBUG_S3C_UART1
>  	default "2" if DEBUG_S3C_UART2
> +	default "3" if DEBUG_S3C_UART3
> 
>  endif
> --
> 1.7.7.3

Applied, thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2012-11-22 19:00 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-11-20 22:48 [PATCH] ARM: exynos: add UART3 to DEBUG_LL ports Doug Anderson
2012-11-21  7:29 ` Olof Johansson
2012-11-21  9:49   ` Kukjin Kim
2012-11-21 16:58   ` Doug Anderson
2012-11-21 16:54 ` [PATCH v2] " Doug Anderson
2012-11-22  6:50   ` Kukjin Kim

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).