diff mbox

ARM: exynos: add UART3 to DEBUG_LL ports

Message ID 1353451739-6317-1-git-send-email-dianders@chromium.org (mailing list archive)
State New, archived
Headers show

Commit Message

Doug Anderson Nov. 20, 2012, 10:48 p.m. UTC
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(-)

Comments

Olof Johansson Nov. 21, 2012, 7:29 a.m. UTC | #1
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
Kim Kukjin Nov. 21, 2012, 9:49 a.m. UTC | #2
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.
Doug Anderson Nov. 21, 2012, 4:58 p.m. UTC | #3
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
diff mbox

Patch

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