* [PATCH] ARM: qcom: add memory node to IPQ806x/AP148
@ 2015-08-18 22:26 ` Mathieu Olivari
0 siblings, 0 replies; 5+ messages in thread
From: Mathieu Olivari @ 2015-08-18 22:26 UTC (permalink / raw)
To: linux-arm-kernel
On recent bootloaders, the bootloader patches the DT blob with memory
information. However, with old bootloader, this operation doesn't
happen, which leads the board to freeze in the early init code.
This patch adds the memory node to the AP148 dts explicitly to cover all
boot cases.
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
---
arch/arm/boot/dts/qcom-ipq8064-ap148.dts | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm/boot/dts/qcom-ipq8064-ap148.dts b/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
index 36e2b04..6886d09 100644
--- a/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
+++ b/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
@@ -4,6 +4,11 @@
model = "Qualcomm IPQ8064/AP148";
compatible = "qcom,ipq8064-ap148", "qcom,ipq8064";
+ memory at 0 {
+ reg = <0x42000000 0x1e000000>;
+ device_type = "memory";
+ };
+
reserved-memory {
#address-cells = <1>;
#size-cells = <1>;
--
2.1.4
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH] ARM: qcom: add memory node to IPQ806x/AP148
@ 2015-08-18 22:26 ` Mathieu Olivari
0 siblings, 0 replies; 5+ messages in thread
From: Mathieu Olivari @ 2015-08-18 22:26 UTC (permalink / raw)
To: galak, agross, sboyd
Cc: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, linux,
devicetree, linux-arm-kernel, linux-kernel, Mathieu Olivari
On recent bootloaders, the bootloader patches the DT blob with memory
information. However, with old bootloader, this operation doesn't
happen, which leads the board to freeze in the early init code.
This patch adds the memory node to the AP148 dts explicitly to cover all
boot cases.
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
---
arch/arm/boot/dts/qcom-ipq8064-ap148.dts | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm/boot/dts/qcom-ipq8064-ap148.dts b/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
index 36e2b04..6886d09 100644
--- a/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
+++ b/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
@@ -4,6 +4,11 @@
model = "Qualcomm IPQ8064/AP148";
compatible = "qcom,ipq8064-ap148", "qcom,ipq8064";
+ memory@0 {
+ reg = <0x42000000 0x1e000000>;
+ device_type = "memory";
+ };
+
reserved-memory {
#address-cells = <1>;
#size-cells = <1>;
--
2.1.4
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH] ARM: qcom: add memory node to IPQ806x/AP148
@ 2015-09-09 0:44 ` Stephen Boyd
0 siblings, 0 replies; 5+ messages in thread
From: Stephen Boyd @ 2015-09-09 0:44 UTC (permalink / raw)
To: linux-arm-kernel
On 08/18, Mathieu Olivari wrote:
> On recent bootloaders, the bootloader patches the DT blob with memory
> information. However, with old bootloader, this operation doesn't
> happen, which leads the board to freeze in the early init code.
>
> This patch adds the memory node to the AP148 dts explicitly to cover all
> boot cases.
>
> Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Does the old bootloader pass atags? If so we can just enable
CONFIG_ARM_ATAG_DTB_COMPAT and then we don't need to add anything
to dts files.
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] ARM: qcom: add memory node to IPQ806x/AP148
@ 2015-09-09 0:44 ` Stephen Boyd
0 siblings, 0 replies; 5+ messages in thread
From: Stephen Boyd @ 2015-09-09 0:44 UTC (permalink / raw)
To: Mathieu Olivari
Cc: galak, agross, robh+dt, pawel.moll, mark.rutland, ijc+devicetree,
linux, devicetree, linux-arm-kernel, linux-kernel
On 08/18, Mathieu Olivari wrote:
> On recent bootloaders, the bootloader patches the DT blob with memory
> information. However, with old bootloader, this operation doesn't
> happen, which leads the board to freeze in the early init code.
>
> This patch adds the memory node to the AP148 dts explicitly to cover all
> boot cases.
>
> Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Does the old bootloader pass atags? If so we can just enable
CONFIG_ARM_ATAG_DTB_COMPAT and then we don't need to add anything
to dts files.
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] ARM: qcom: add memory node to IPQ806x/AP148
@ 2015-09-09 0:44 ` Stephen Boyd
0 siblings, 0 replies; 5+ messages in thread
From: Stephen Boyd @ 2015-09-09 0:44 UTC (permalink / raw)
To: Mathieu Olivari
Cc: galak-sgV2jX0FEOL9JmXXK+q4OQ, agross-sgV2jX0FEOL9JmXXK+q4OQ,
robh+dt-DgEjT+Ai2ygdnm+yROfE0A, pawel.moll-5wv7dgnIgG8,
mark.rutland-5wv7dgnIgG8, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg,
linux-lFZ/pmaqli7XmaaqVzeoHQ, devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-kernel-u79uwXL29TY76Z2rM5mHXA
On 08/18, Mathieu Olivari wrote:
> On recent bootloaders, the bootloader patches the DT blob with memory
> information. However, with old bootloader, this operation doesn't
> happen, which leads the board to freeze in the early init code.
>
> This patch adds the memory node to the AP148 dts explicitly to cover all
> boot cases.
>
> Signed-off-by: Mathieu Olivari <mathieu-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
Does the old bootloader pass atags? If so we can just enable
CONFIG_ARM_ATAG_DTB_COMPAT and then we don't need to add anything
to dts files.
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
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^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2015-09-09 0:44 UTC | newest]
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2015-08-18 22:26 [PATCH] ARM: qcom: add memory node to IPQ806x/AP148 Mathieu Olivari
2015-08-18 22:26 ` Mathieu Olivari
2015-09-09 0:44 ` Stephen Boyd
2015-09-09 0:44 ` Stephen Boyd
2015-09-09 0:44 ` Stephen Boyd
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