* [PATCH 1/2] ARM: dts: Disable MDMA1 node for Arndale-octa board
@ 2014-03-05 8:09 Tushar Behera
2014-03-05 8:09 ` [PATCH 2/2] ARM: dts: Keep some essential LDOs enabled for Arndale-Octa Tushar Behera
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Tushar Behera @ 2014-03-05 8:09 UTC (permalink / raw)
To: linux-samsung-soc; +Cc: kgene.kim
MDMA1 can support both secure and non-secure AXI transactions. When this
is enabled in the kernel for boards that run in secure mode, we get
imprecise external aborts causing the kernel to oops.
Unhandled fault: imprecise external abort (0x1406) at 0x00000000
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007
Suggested-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
---
arch/arm/boot/dts/exynos5420-arndale-octa.dts | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
index f509e8f..810ec73 100644
--- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
+++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
@@ -361,4 +361,16 @@
gpio-key,wakeup;
};
};
+
+ amba {
+ mdma1: mdma@11C10000 {
+ /*
+ * MDMA1 can support both secure and non-secure
+ * AXI transactions. When this is enabled in the kernel
+ * for boards that run in secure mode, we are getting
+ * imprecise external aborts causing the kernel to oops.
+ */
+ status = "disabled";
+ };
+ };
};
--
1.7.9.5
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH 2/2] ARM: dts: Keep some essential LDOs enabled for Arndale-Octa
2014-03-05 8:09 [PATCH 1/2] ARM: dts: Disable MDMA1 node for Arndale-octa board Tushar Behera
@ 2014-03-05 8:09 ` Tushar Behera
2014-03-19 8:39 ` Tushar Behera
2014-03-06 10:25 ` [PATCH 1/2] ARM: dts: Disable MDMA1 node for Arndale-octa board Javi Merino
2014-03-19 8:38 ` Tushar Behera
2 siblings, 1 reply; 6+ messages in thread
From: Tushar Behera @ 2014-03-05 8:09 UTC (permalink / raw)
To: linux-samsung-soc; +Cc: kgene.kim
LDO3 and LDO23 need to be enabled in order for soft-reset to work.
Additionally LDO9 needs to be enabled for USB operations.
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
---
arch/arm/boot/dts/exynos5420-arndale-octa.dts | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
index 810ec73..df975b5 100644
--- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
+++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
@@ -113,6 +113,7 @@
regulator-name = "PVDD_APIO_MMCON_1V8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
+ regulator-always-on;
};
ldo4_reg: LDO4 {
@@ -150,6 +151,7 @@
regulator-name = "PVDD_USB_3V3";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
+ regulator-always-on;
};
ldo10_reg: LDO10 {
@@ -218,6 +220,7 @@
regulator-name = "PVDD_MIFS_1V1";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
+ regulator-always-on;
};
ldo24_reg: LDO24 {
--
1.7.9.5
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [PATCH 2/2] ARM: dts: Keep some essential LDOs enabled for Arndale-Octa
2014-03-05 8:09 ` [PATCH 2/2] ARM: dts: Keep some essential LDOs enabled for Arndale-Octa Tushar Behera
@ 2014-03-19 8:39 ` Tushar Behera
0 siblings, 0 replies; 6+ messages in thread
From: Tushar Behera @ 2014-03-19 8:39 UTC (permalink / raw)
To: linux-samsung-soc; +Cc: Kukjin Kim
On 5 March 2014 13:39, Tushar Behera <tushar.behera@linaro.org> wrote:
> LDO3 and LDO23 need to be enabled in order for soft-reset to work.
>
> Additionally LDO9 needs to be enabled for USB operations.
>
> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
> ---
> arch/arm/boot/dts/exynos5420-arndale-octa.dts | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
> index 810ec73..df975b5 100644
> --- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
> +++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
> @@ -113,6 +113,7 @@
> regulator-name = "PVDD_APIO_MMCON_1V8";
> regulator-min-microvolt = <1800000>;
> regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> };
>
> ldo4_reg: LDO4 {
> @@ -150,6 +151,7 @@
> regulator-name = "PVDD_USB_3V3";
> regulator-min-microvolt = <3000000>;
> regulator-max-microvolt = <3000000>;
> + regulator-always-on;
> };
>
> ldo10_reg: LDO10 {
> @@ -218,6 +220,7 @@
> regulator-name = "PVDD_MIFS_1V1";
> regulator-min-microvolt = <1200000>;
> regulator-max-microvolt = <1200000>;
> + regulator-always-on;
> };
>
> ldo24_reg: LDO24 {
> --
> 1.7.9.5
>
Kukjin,
Would you please apply this?
--
Tushar Behera
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] ARM: dts: Disable MDMA1 node for Arndale-octa board
2014-03-05 8:09 [PATCH 1/2] ARM: dts: Disable MDMA1 node for Arndale-octa board Tushar Behera
2014-03-05 8:09 ` [PATCH 2/2] ARM: dts: Keep some essential LDOs enabled for Arndale-Octa Tushar Behera
@ 2014-03-06 10:25 ` Javi Merino
2014-03-19 8:38 ` Tushar Behera
2 siblings, 0 replies; 6+ messages in thread
From: Javi Merino @ 2014-03-06 10:25 UTC (permalink / raw)
To: linux-samsung-soc
Tushar Behera <tushar.behera <at> linaro.org> writes:
>
> MDMA1 can support both secure and non-secure AXI transactions. When this
> is enabled in the kernel for boards that run in secure mode, we get
> imprecise external aborts causing the kernel to oops.
>
> Unhandled fault: imprecise external abort (0x1406) at 0x00000000
> Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007
>
> Suggested-by: Javi Merino <javi.merino@arm.com>
> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
I've tested this on top of kgene/for-next (I'm assuming that your patch is
based on that branch) but that tree currently doesn't boot.
If I backport it to v3.14-rc5, the kernel boots. So:
Tested-by: Javi Merino <javi.merino@arm.com>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] ARM: dts: Disable MDMA1 node for Arndale-octa board
2014-03-05 8:09 [PATCH 1/2] ARM: dts: Disable MDMA1 node for Arndale-octa board Tushar Behera
2014-03-05 8:09 ` [PATCH 2/2] ARM: dts: Keep some essential LDOs enabled for Arndale-Octa Tushar Behera
2014-03-06 10:25 ` [PATCH 1/2] ARM: dts: Disable MDMA1 node for Arndale-octa board Javi Merino
@ 2014-03-19 8:38 ` Tushar Behera
2014-03-20 19:29 ` Kukjin Kim
2 siblings, 1 reply; 6+ messages in thread
From: Tushar Behera @ 2014-03-19 8:38 UTC (permalink / raw)
To: linux-samsung-soc; +Cc: Kgene Kim
On 5 March 2014 13:39, Tushar Behera <tushar.behera@linaro.org> wrote:
> MDMA1 can support both secure and non-secure AXI transactions. When this
> is enabled in the kernel for boards that run in secure mode, we get
> imprecise external aborts causing the kernel to oops.
>
> Unhandled fault: imprecise external abort (0x1406) at 0x00000000
> Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007
>
> Suggested-by: Javi Merino <javi.merino@arm.com>
> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
> ---
> arch/arm/boot/dts/exynos5420-arndale-octa.dts | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
> index f509e8f..810ec73 100644
> --- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
> +++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
> @@ -361,4 +361,16 @@
> gpio-key,wakeup;
> };
> };
> +
> + amba {
> + mdma1: mdma@11C10000 {
> + /*
> + * MDMA1 can support both secure and non-secure
> + * AXI transactions. When this is enabled in the kernel
> + * for boards that run in secure mode, we are getting
> + * imprecise external aborts causing the kernel to oops.
> + */
> + status = "disabled";
> + };
> + };
> };
> --
> 1.7.9.5
>
Kukjin,
Can you please apply this with Javi's "Tested-by"?
--
Tushar Behera
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [PATCH 1/2] ARM: dts: Disable MDMA1 node for Arndale-octa board
2014-03-19 8:38 ` Tushar Behera
@ 2014-03-20 19:29 ` Kukjin Kim
0 siblings, 0 replies; 6+ messages in thread
From: Kukjin Kim @ 2014-03-20 19:29 UTC (permalink / raw)
To: Tushar Behera; +Cc: linux-samsung-soc, Kgene Kim
On 03/19/14 17:38, Tushar Behera wrote:
> On 5 March 2014 13:39, Tushar Behera<tushar.behera@linaro.org> wrote:
>> MDMA1 can support both secure and non-secure AXI transactions. When this
>> is enabled in the kernel for boards that run in secure mode, we get
>> imprecise external aborts causing the kernel to oops.
>>
>> Unhandled fault: imprecise external abort (0x1406) at 0x00000000
>> Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007
>>
>> Suggested-by: Javi Merino<javi.merino@arm.com>
>> Signed-off-by: Tushar Behera<tushar.behera@linaro.org>
>> ---
>> arch/arm/boot/dts/exynos5420-arndale-octa.dts | 12 ++++++++++++
>> 1 file changed, 12 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
>> index f509e8f..810ec73 100644
>> --- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
>> +++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
>> @@ -361,4 +361,16 @@
>> gpio-key,wakeup;
>> };
>> };
>> +
>> + amba {
>> + mdma1: mdma@11C10000 {
>> + /*
>> + * MDMA1 can support both secure and non-secure
>> + * AXI transactions. When this is enabled in the kernel
>> + * for boards that run in secure mode, we are getting
>> + * imprecise external aborts causing the kernel to oops.
>> + */
>> + status = "disabled";
>> + };
>> + };
>> };
>> --
>> 1.7.9.5
>>
> Kukjin,
>
> Can you please apply this with Javi's "Tested-by"?
>
>
Looks OK, applied this and second one.
Thanks,
Kukjin
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-03-20 19:29 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-03-05 8:09 [PATCH 1/2] ARM: dts: Disable MDMA1 node for Arndale-octa board Tushar Behera
2014-03-05 8:09 ` [PATCH 2/2] ARM: dts: Keep some essential LDOs enabled for Arndale-Octa Tushar Behera
2014-03-19 8:39 ` Tushar Behera
2014-03-06 10:25 ` [PATCH 1/2] ARM: dts: Disable MDMA1 node for Arndale-octa board Javi Merino
2014-03-19 8:38 ` Tushar Behera
2014-03-20 19:29 ` Kukjin Kim
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