Re: [PATCH] ARM: dts: omap4-panda-es: Do not reset gpio1
Hi Nishanth,
On 10/10/2013 18:44, Nishanth Menon wrote:
Do not reset GPIO1 at boot-up because GPIO 7 in GPIO1 block is used on
OMAP4460 PandaBoard-ES to select voltage register in TPS62361 which
supplies VDD_MPU.
Without this, OMAP4460 PandaBoard-ES boards fail to boot-up because
MPU voltage switches over to VSET0 voltage value (boot voltage) which
is not sufficient to operate the device at OPP100.
Signed-off-by: Nishanth Menon
---
As explained here: http://marc.info/?l=u-boot=133066647800872=2
GPIO1 reset causes PandaBoard-ES to stop functioning.
This depends on Patch series from Rajendra:
http://marc.info/?l=linux-doc=138131355520116=2
Applies on Benoit's for_13/dts branch:
https://git.kernel.org/cgit/linux/kernel/git/bcousson/linux-omap-dt.git/log/?h=for_3.13/dts
I've just applied it after Rajendra's series.
Thanks,
Benoit
Tested on PandaBoard-ES without the u-boot uenv hack
arch/arm/boot/dts/omap4-panda-es.dts |4
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/omap4-panda-es.dts
b/arch/arm/boot/dts/omap4-panda-es.dts
index 56c4354..816d1c9 100644
--- a/arch/arm/boot/dts/omap4-panda-es.dts
+++ b/arch/arm/boot/dts/omap4-panda-es.dts
@@ -62,3 +62,7 @@
gpios = < 8 GPIO_ACTIVE_HIGH>;
};
};
+
+ {
+ti,no-reset-on-init;
+};
--
Benoît Cousson
BayLibre
Embedded Linux Technology Lab
www.baylibre.com
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Re: [PATCH] ARM: dts: omap4-panda-es: Do not reset gpio1
Hi Nishanth,
On 10/10/2013 18:44, Nishanth Menon wrote:
Do not reset GPIO1 at boot-up because GPIO 7 in GPIO1 block is used on
OMAP4460 PandaBoard-ES to select voltage register in TPS62361 which
supplies VDD_MPU.
Without this, OMAP4460 PandaBoard-ES boards fail to boot-up because
MPU voltage switches over to VSET0 voltage value (boot voltage) which
is not sufficient to operate the device at OPP100.
Signed-off-by: Nishanth Menon n...@ti.com
---
As explained here: http://marc.info/?l=u-bootm=133066647800872w=2
GPIO1 reset causes PandaBoard-ES to stop functioning.
This depends on Patch series from Rajendra:
http://marc.info/?l=linux-docm=138131355520116w=2
Applies on Benoit's for_13/dts branch:
https://git.kernel.org/cgit/linux/kernel/git/bcousson/linux-omap-dt.git/log/?h=for_3.13/dts
I've just applied it after Rajendra's series.
Thanks,
Benoit
Tested on PandaBoard-ES without the u-boot uenv hack
arch/arm/boot/dts/omap4-panda-es.dts |4
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/omap4-panda-es.dts
b/arch/arm/boot/dts/omap4-panda-es.dts
index 56c4354..816d1c9 100644
--- a/arch/arm/boot/dts/omap4-panda-es.dts
+++ b/arch/arm/boot/dts/omap4-panda-es.dts
@@ -62,3 +62,7 @@
gpios = gpio1 8 GPIO_ACTIVE_HIGH;
};
};
+
+gpio1 {
+ti,no-reset-on-init;
+};
--
Benoît Cousson
BayLibre
Embedded Linux Technology Lab
www.baylibre.com
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] ARM: dts: omap4-panda-es: Do not reset gpio1
On 10/10/2013 11:47 AM, Tony Lindgren wrote: > * Nishanth Menon [131010 09:53]: >> Do not reset GPIO1 at boot-up because GPIO 7 in GPIO1 block is used on >> OMAP4460 PandaBoard-ES to select voltage register in TPS62361 which >> supplies VDD_MPU. >> >> Without this, OMAP4460 PandaBoard-ES boards fail to boot-up because >> MPU voltage switches over to VSET0 voltage value (boot voltage) which >> is not sufficient to operate the device at OPP100. > > Is this needs as a fix for the -rc series? Nope, this is not a regression recently introduced, has been in since day one of Panda-ES support. Further, we still have decision pending on the dependent series from Rajendra[1] - will be good to see it go in along with AM335x-EVM. [1] http://marc.info/?t=13813136835=1=2 -- Regards, Nishanth Menon -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] ARM: dts: omap4-panda-es: Do not reset gpio1
* Nishanth Menon [131010 09:53]:
> Do not reset GPIO1 at boot-up because GPIO 7 in GPIO1 block is used on
> OMAP4460 PandaBoard-ES to select voltage register in TPS62361 which
> supplies VDD_MPU.
>
> Without this, OMAP4460 PandaBoard-ES boards fail to boot-up because
> MPU voltage switches over to VSET0 voltage value (boot voltage) which
> is not sufficient to operate the device at OPP100.
Is this needs as a fix for the -rc series?
Tony
> Signed-off-by: Nishanth Menon
> ---
> As explained here: http://marc.info/?l=u-boot=133066647800872=2
>
> GPIO1 reset causes PandaBoard-ES to stop functioning.
> This depends on Patch series from Rajendra:
> http://marc.info/?l=linux-doc=138131355520116=2
> Applies on Benoit's for_13/dts branch:
> https://git.kernel.org/cgit/linux/kernel/git/bcousson/linux-omap-dt.git/log/?h=for_3.13/dts
>
> Tested on PandaBoard-ES without the u-boot uenv hack
>
> arch/arm/boot/dts/omap4-panda-es.dts |4
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/arm/boot/dts/omap4-panda-es.dts
> b/arch/arm/boot/dts/omap4-panda-es.dts
> index 56c4354..816d1c9 100644
> --- a/arch/arm/boot/dts/omap4-panda-es.dts
> +++ b/arch/arm/boot/dts/omap4-panda-es.dts
> @@ -62,3 +62,7 @@
> gpios = < 8 GPIO_ACTIVE_HIGH>;
> };
> };
> +
> + {
> + ti,no-reset-on-init;
> +};
> --
> 1.7.9.5
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majord...@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
--
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Please read the FAQ at http://www.tux.org/lkml/
[PATCH] ARM: dts: omap4-panda-es: Do not reset gpio1
Do not reset GPIO1 at boot-up because GPIO 7 in GPIO1 block is used on
OMAP4460 PandaBoard-ES to select voltage register in TPS62361 which
supplies VDD_MPU.
Without this, OMAP4460 PandaBoard-ES boards fail to boot-up because
MPU voltage switches over to VSET0 voltage value (boot voltage) which
is not sufficient to operate the device at OPP100.
Signed-off-by: Nishanth Menon
---
As explained here: http://marc.info/?l=u-boot=133066647800872=2
GPIO1 reset causes PandaBoard-ES to stop functioning.
This depends on Patch series from Rajendra:
http://marc.info/?l=linux-doc=138131355520116=2
Applies on Benoit's for_13/dts branch:
https://git.kernel.org/cgit/linux/kernel/git/bcousson/linux-omap-dt.git/log/?h=for_3.13/dts
Tested on PandaBoard-ES without the u-boot uenv hack
arch/arm/boot/dts/omap4-panda-es.dts |4
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/omap4-panda-es.dts
b/arch/arm/boot/dts/omap4-panda-es.dts
index 56c4354..816d1c9 100644
--- a/arch/arm/boot/dts/omap4-panda-es.dts
+++ b/arch/arm/boot/dts/omap4-panda-es.dts
@@ -62,3 +62,7 @@
gpios = < 8 GPIO_ACTIVE_HIGH>;
};
};
+
+ {
+ti,no-reset-on-init;
+};
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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Please read the FAQ at http://www.tux.org/lkml/
[PATCH] ARM: dts: omap4-panda-es: Do not reset gpio1
Do not reset GPIO1 at boot-up because GPIO 7 in GPIO1 block is used on
OMAP4460 PandaBoard-ES to select voltage register in TPS62361 which
supplies VDD_MPU.
Without this, OMAP4460 PandaBoard-ES boards fail to boot-up because
MPU voltage switches over to VSET0 voltage value (boot voltage) which
is not sufficient to operate the device at OPP100.
Signed-off-by: Nishanth Menon n...@ti.com
---
As explained here: http://marc.info/?l=u-bootm=133066647800872w=2
GPIO1 reset causes PandaBoard-ES to stop functioning.
This depends on Patch series from Rajendra:
http://marc.info/?l=linux-docm=138131355520116w=2
Applies on Benoit's for_13/dts branch:
https://git.kernel.org/cgit/linux/kernel/git/bcousson/linux-omap-dt.git/log/?h=for_3.13/dts
Tested on PandaBoard-ES without the u-boot uenv hack
arch/arm/boot/dts/omap4-panda-es.dts |4
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/omap4-panda-es.dts
b/arch/arm/boot/dts/omap4-panda-es.dts
index 56c4354..816d1c9 100644
--- a/arch/arm/boot/dts/omap4-panda-es.dts
+++ b/arch/arm/boot/dts/omap4-panda-es.dts
@@ -62,3 +62,7 @@
gpios = gpio1 8 GPIO_ACTIVE_HIGH;
};
};
+
+gpio1 {
+ti,no-reset-on-init;
+};
--
1.7.9.5
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] ARM: dts: omap4-panda-es: Do not reset gpio1
* Nishanth Menon n...@ti.com [131010 09:53]:
Do not reset GPIO1 at boot-up because GPIO 7 in GPIO1 block is used on
OMAP4460 PandaBoard-ES to select voltage register in TPS62361 which
supplies VDD_MPU.
Without this, OMAP4460 PandaBoard-ES boards fail to boot-up because
MPU voltage switches over to VSET0 voltage value (boot voltage) which
is not sufficient to operate the device at OPP100.
Is this needs as a fix for the -rc series?
Tony
Signed-off-by: Nishanth Menon n...@ti.com
---
As explained here: http://marc.info/?l=u-bootm=133066647800872w=2
GPIO1 reset causes PandaBoard-ES to stop functioning.
This depends on Patch series from Rajendra:
http://marc.info/?l=linux-docm=138131355520116w=2
Applies on Benoit's for_13/dts branch:
https://git.kernel.org/cgit/linux/kernel/git/bcousson/linux-omap-dt.git/log/?h=for_3.13/dts
Tested on PandaBoard-ES without the u-boot uenv hack
arch/arm/boot/dts/omap4-panda-es.dts |4
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/omap4-panda-es.dts
b/arch/arm/boot/dts/omap4-panda-es.dts
index 56c4354..816d1c9 100644
--- a/arch/arm/boot/dts/omap4-panda-es.dts
+++ b/arch/arm/boot/dts/omap4-panda-es.dts
@@ -62,3 +62,7 @@
gpios = gpio1 8 GPIO_ACTIVE_HIGH;
};
};
+
+gpio1 {
+ ti,no-reset-on-init;
+};
--
1.7.9.5
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
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Please read the FAQ at http://www.tux.org/lkml/
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] ARM: dts: omap4-panda-es: Do not reset gpio1
On 10/10/2013 11:47 AM, Tony Lindgren wrote: * Nishanth Menon n...@ti.com [131010 09:53]: Do not reset GPIO1 at boot-up because GPIO 7 in GPIO1 block is used on OMAP4460 PandaBoard-ES to select voltage register in TPS62361 which supplies VDD_MPU. Without this, OMAP4460 PandaBoard-ES boards fail to boot-up because MPU voltage switches over to VSET0 voltage value (boot voltage) which is not sufficient to operate the device at OPP100. Is this needs as a fix for the -rc series? Nope, this is not a regression recently introduced, has been in since day one of Panda-ES support. Further, we still have decision pending on the dependent series from Rajendra[1] - will be good to see it go in along with AM335x-EVM. [1] http://marc.info/?t=13813136835r=1w=2 -- Regards, Nishanth Menon -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
