[PATCH 0/3] Fix broken bananapi m2 devicetree/regulators

[PATCH 0/3] Fix broken bananapi m2 devicetree/regulators

[Philipp Rossak]

This patchseries fixes the bananapi m1 devicetree, to be able to boot again.
The first two patches update/improve the devicetree and the last patch adds
all missing regulators.

Regards,
Philipp

Philipp Rossak (3):
  arm: dts: sun6i: a31s: bpi-m2: update mmc supply nodes
  arm: dts: sun6i: a31s: bpi-m2: improve pmic properties
  arm: dts: sun6i: a31s: fix: bpi-m2: add missing regulators

 arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 70 +++++++++++++++++++++++-
 1 file changed, 67 insertions(+), 3 deletions(-)

-- 
2.11.0

[PATCH 1/3] arm: dts: sun6i: a31s: bpi-m2: update mmc supply nodes

[Philipp Rossak]

This patch updates the vmmc-supply properties on the mmc0 and mmc2
node to use the allready existent regulators.
We can now remove the sunxi-common-regulators.dtsi include since we
don't need it anymore.

Signed-off-by: Philipp Rossak <embed3d@gmail.com>
---
 arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts b/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
index 51e6f1d21c32..a8d86211c8f3 100644
--- a/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
+++ b/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
@@ -42,7 +42,6 @@
 
 /dts-v1/;
 #include "sun6i-a31s.dtsi"
-#include "sunxi-common-regulators.dtsi"
 #include <dt-bindings/gpio/gpio.h>
 
 / {
@@ -118,7 +117,7 @@
 &mmc0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_bpi_m2>;
-	vmmc-supply = <&reg_vcc3v0>;
+	vmmc-supply = <&reg_dcdc1>;
 	bus-width = <4>;
 	cd-gpios = <&pio 0 4 GPIO_ACTIVE_HIGH>; /* PA4 */
 	cd-inverted;
@@ -132,7 +131,7 @@
 &mmc2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc2_pins_a>;
-	vmmc-supply = <&reg_vcc3v0>;
+	vmmc-supply = <&reg_dcdc1>;
 	mmc-pwrseq = <&mmc2_pwrseq>;
 	bus-width = <4>;
 	non-removable;
-- 
2.11.0

[PATCH 1/3] arm: dts: sun6i: a31s: bpi-m2: update mmc supply nodes

[Philipp Rossak]

Am Freitag, den 09.02.2018, 18:52 +0100 schrieb Philipp Rossak:
> This patch updates the vmmc-supply properties on the mmc0 and mmc2
> node to use the allready existent regulators.
> We can now remove the sunxi-common-regulators.dtsi include since we
> don't need it anymore.
> 
> Signed-off-by: Philipp Rossak <embed3d@gmail.com>
> ---
> ?arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 5 ++---
> ?1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
> b/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
> index 51e6f1d21c32..a8d86211c8f3 100644
> --- a/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
> +++ b/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
> @@ -42,7 +42,6 @@
> ?
> ?/dts-v1/;
> ?#include "sun6i-a31s.dtsi"
> -#include "sunxi-common-regulators.dtsi"
> ?#include <dt-bindings/gpio/gpio.h>
> ?
> ?/ {
> @@ -118,7 +117,7 @@
> ?&mmc0 {
> ?	pinctrl-names = "default";
> ?	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_bpi_m2>;
> -	vmmc-supply = <&reg_vcc3v0>;
> +	vmmc-supply = <&reg_dcdc1>;
> ?	bus-width = <4>;
> ?	cd-gpios = <&pio 0 4 GPIO_ACTIVE_HIGH>; /* PA4 */
> ?	cd-inverted;
> @@ -132,7 +131,7 @@
> ?&mmc2 {
> ?	pinctrl-names = "default";
> ?	pinctrl-0 = <&mmc2_pins_a>;
> -	vmmc-supply = <&reg_vcc3v0>;
> +	vmmc-supply = <&reg_dcdc1>;
			^^
		this here is wrong! this should be &reg_aldo1
> ?	mmc-pwrseq = <&mmc2_pwrseq>;
> ?	bus-width = <4>;
> ?	non-removable;

Philipp

[PATCH 2/3] arm: dts: sun6i: a31s: bpi-m2: improve pmic properties

[Philipp Rossak]

The eldoin is supplied from the dcdc1 regulator. The N_VBUSEN pin is
connected to an external power regulator (SY6280AAC).
With this commit we update the pmic binding properties to support
those features.

Signed-off-by: Philipp Rossak <embed3d@gmail.com>
---
 arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts b/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
index a8d86211c8f3..556528386858 100644
--- a/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
+++ b/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
@@ -162,6 +162,8 @@
 		reg = <0x68>;
 		interrupt-parent = <&nmi_intc>;
 		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+		eldoin-supply = <&reg_dcdc1>;
+		x-powers,drive-vbus-en;
 	};
 };
 
-- 
2.11.0

[PATCH 3/3] arm: dts: sun6i: a31s: fix: bpi-m2: add missing regulators

[Philipp Rossak]

This patch fixes a bootproblem with the Bananapi M2 board. Since there
are some regulators missing we add them right now. Those values come
from the schematic, below you can find a small overview:

* reg_aldo1:  3,3V, powers the wifi
* reg_aldo2:  2,5V, powers the IO of the RTL8211E
* reg_aldo3:  3,3V, powers the audio

* reg_dldo1:  3,0V, powers the RTL8211E
* reg_dldo2:  2,8V, powers the analog part of the csi
* reg_dldo3:  3,3V, powers misc
* reg_eldo1:  1,8V, powers the csi
* reg_ldo_io1:1,8V, powers the gpio

* reg_dc5ldo: needs to be always on

Signed-off-by: Philipp Rossak <embed3d@gmail.com>
---
 arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 56 ++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts b/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
index 51e6f1d21c32..01fcfe0649ad 100644
--- a/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
+++ b/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
@@ -99,6 +99,7 @@
 	pinctrl-0 = <&gmac_pins_rgmii_a>, <&gmac_phy_reset_pin_bpi_m2>;
 	phy = <&phy1>;
 	phy-mode = "rgmii";
+	phy-supply = <&reg_dldo1>;
 	snps,reset-gpio = <&pio 0 21 GPIO_ACTIVE_HIGH>; /* PA21 */
 	snps,reset-active-low;
 	snps,reset-delays-us = <0 10000 30000>;
@@ -193,7 +194,28 @@
 
 #include "axp22x.dtsi"
 
+&reg_aldo1 {
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-wifi";
+};
+
+&reg_aldo2 {
+	regulator-always-on;
+	regulator-min-microvolt = <2500000>;
+	regulator-max-microvolt = <2500000>;
+	regulator-name = "vcc-gmac";
+};
+
+&reg_aldo3 {
+	regulator-always-on;
+	regulator-min-microvolt = <3000000>;
+	regulator-max-microvolt = <3000000>;
+	regulator-name = "avcc";
+};
+
 &reg_dc5ldo {
+	regulator-always-on;
 	regulator-min-microvolt = <700000>;
 	regulator-max-microvolt = <1320000>;
 	regulator-name = "vdd-cpus";
@@ -233,6 +255,40 @@
 	regulator-name = "vcc-dram";
 };
 
+&reg_dldo1 {
+	regulator-min-microvolt = <3000000>;
+	regulator-max-microvolt = <3000000>;
+	regulator-name = "vcc-mac";
+};
+
+&reg_dldo2 {
+	regulator-min-microvolt = <2800000>;
+	regulator-max-microvolt = <2800000>;
+	regulator-name = "avdd-csi";
+};
+
+&reg_dldo3 {
+	regulator-always-on;
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-pb";
+};
+
+&reg_eldo1 {
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+	regulator-name = "vdd-csi";
+	status = "okay";
+};
+
+&reg_ldo_io1 {
+	regulator-always-on;
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+	regulator-name = "vcc-pm-cpus";
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pins_a>;
-- 
2.11.0

[PATCH 0/3] Fix broken bananapi m2 devicetree/regulators

[Sergey Suloev]

On 02/09/2018 08:52 PM, Philipp Rossak wrote:
> This patchseries fixes the bananapi m1 devicetree, to be able to boot again.
> The first two patches update/improve the devicetree and the last patch adds
> all missing regulators.
>
> Regards,
> Philipp
>
> Philipp Rossak (3):
>    arm: dts: sun6i: a31s: bpi-m2: update mmc supply nodes
>    arm: dts: sun6i: a31s: bpi-m2: improve pmic properties
>    arm: dts: sun6i: a31s: fix: bpi-m2: add missing regulators
>
>   arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 70 +++++++++++++++++++++++-
>   1 file changed, 67 insertions(+), 3 deletions(-)
>
patches are not working

Thanks

[PATCH 0/3] Fix broken bananapi m2 devicetree/regulators

[Philipp Rossak]

Hey Sergey,

Thanks for mentioning, but I think the problem has nothing to do with 
those patches. I tested them with the v4.15.0 Kernel since this is the 
last stable release and we are right now in the merging window.

I tested the latest mainline, without those patches and the kernel is 
not booting (I can't see any uart output).

Thanks,
Philipp

On 10.02.2018 14:56, Sergey Suloev wrote:
> On 02/09/2018 08:52 PM, Philipp Rossak wrote:
>> This patchseries fixes the bananapi m1 devicetree, to be able to boot 
>> again.
>> The first two patches update/improve the devicetree and the last patch 
>> adds
>> all missing regulators.
>>
>> Regards,
>> Philipp
>>
>> Philipp Rossak (3):
>> ?? arm: dts: sun6i: a31s: bpi-m2: update mmc supply nodes
>> ?? arm: dts: sun6i: a31s: bpi-m2: improve pmic properties
>> ?? arm: dts: sun6i: a31s: fix: bpi-m2: add missing regulators
>>
>> ? arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 70 
>> +++++++++++++++++++++++-
>> ? 1 file changed, 67 insertions(+), 3 deletions(-)
>>
> patches are not working
> 
> Thanks
> 

[PATCH 0/3] Fix broken bananapi m2 devicetree/regulators

[Sergey Suloev]

On 02/11/2018 12:01 AM, Philipp Rossak wrote:
> Hey Sergey,
>
> Thanks for mentioning, but I think the problem has nothing to do with 
> those patches. I tested them with the v4.15.0 Kernel since this is the 
> last stable release and we are right now in the merging window.
>
> I tested the latest mainline, without those patches and the kernel is 
> not booting (I can't see any uart output).
>
> Thanks,
> Philipp
>
> On 10.02.2018 14:56, Sergey Suloev wrote:
>> On 02/09/2018 08:52 PM, Philipp Rossak wrote:
>>> This patchseries fixes the bananapi m1 devicetree, to be able to 
>>> boot again.
>>> The first two patches update/improve the devicetree and the last 
>>> patch adds
>>> all missing regulators.
>>>
>>> Regards,
>>> Philipp
>>>
>>> Philipp Rossak (3):
>>> ?? arm: dts: sun6i: a31s: bpi-m2: update mmc supply nodes
>>> ?? arm: dts: sun6i: a31s: bpi-m2: improve pmic properties
>>> ?? arm: dts: sun6i: a31s: fix: bpi-m2: add missing regulators
>>>
>>> ? arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 70 
>>> +++++++++++++++++++++++-
>>> ? 1 file changed, 67 insertions(+), 3 deletions(-)
>>>
>> patches are not working
>>
>> Thanks
>>
same problem, but after applying the patches my device is till hanging.

[PATCH 0/3] Fix broken bananapi m2 devicetree/regulators

[Philipp Rossak]

On 10.02.2018 22:08, Sergey Suloev wrote:
> On 02/11/2018 12:01 AM, Philipp Rossak wrote:
>> Hey Sergey,
>>
>> Thanks for mentioning, but I think the problem has nothing to do with 
>> those patches. I tested them with the v4.15.0 Kernel since this is the 
>> last stable release and we are right now in the merging window.
>>
>> I tested the latest mainline, without those patches and the kernel is 
>> not booting (I can't see any uart output).
>>
>> Thanks,
>> Philipp
>>
>> On 10.02.2018 14:56, Sergey Suloev wrote:
>>> On 02/09/2018 08:52 PM, Philipp Rossak wrote:
>>>> This patchseries fixes the bananapi m1 devicetree, to be able to 
>>>> boot again.
>>>> The first two patches update/improve the devicetree and the last 
>>>> patch adds
>>>> all missing regulators.
>>>>
>>>> Regards,
>>>> Philipp
>>>>
>>>> Philipp Rossak (3):
>>>> ?? arm: dts: sun6i: a31s: bpi-m2: update mmc supply nodes
>>>> ?? arm: dts: sun6i: a31s: bpi-m2: improve pmic properties
>>>> ?? arm: dts: sun6i: a31s: fix: bpi-m2: add missing regulators
>>>>
>>>> ? arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 70 
>>>> +++++++++++++++++++++++-
>>>> ? 1 file changed, 67 insertions(+), 3 deletions(-)
>>>>
>>> patches are not working
>>>
>>> Thanks
>>>
> same problem, but after applying the patches my device is till hanging.
> 
> 
Can you please share a bootlog? Here is mine [1]. As you can see I'm 
able to boot.
I build it with this branch [2]. For testing you should replace the dtb 
and the uImage/zImage

Philipp


[1]: https://pastebin.com/mVjv3LDf
[2]: https://github.com/embed-3d/linux/tree/testing/bpi-m2-regulator-test-2

[PATCH 0/3] Fix broken bananapi m2 devicetree/regulators

[Sergey Suloev]

On 02/11/2018 01:07 AM, Philipp Rossak wrote:
>
>
> On 10.02.2018 22:08, Sergey Suloev wrote:
>> On 02/11/2018 12:01 AM, Philipp Rossak wrote:
>>> Hey Sergey,
>>>
>>> Thanks for mentioning, but I think the problem has nothing to do 
>>> with those patches. I tested them with the v4.15.0 Kernel since this 
>>> is the last stable release and we are right now in the merging window.
>>>
>>> I tested the latest mainline, without those patches and the kernel 
>>> is not booting (I can't see any uart output).
>>>
>>> Thanks,
>>> Philipp
>>>
>>> On 10.02.2018 14:56, Sergey Suloev wrote:
>>>> On 02/09/2018 08:52 PM, Philipp Rossak wrote:
>>>>> This patchseries fixes the bananapi m1 devicetree, to be able to 
>>>>> boot again.
>>>>> The first two patches update/improve the devicetree and the last 
>>>>> patch adds
>>>>> all missing regulators.
>>>>>
>>>>> Regards,
>>>>> Philipp
>>>>>
>>>>> Philipp Rossak (3):
>>>>> ?? arm: dts: sun6i: a31s: bpi-m2: update mmc supply nodes
>>>>> ?? arm: dts: sun6i: a31s: bpi-m2: improve pmic properties
>>>>> ?? arm: dts: sun6i: a31s: fix: bpi-m2: add missing regulators
>>>>>
>>>>> ? arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 70 
>>>>> +++++++++++++++++++++++-
>>>>> ? 1 file changed, 67 insertions(+), 3 deletions(-)
>>>>>
>>>> patches are not working
>>>>
>>>> Thanks
>>>>
>> same problem, but after applying the patches my device is till hanging.
>>
>>
> Can you please share a bootlog? Here is mine [1]. As you can see I'm 
> able to boot.
> I build it with this branch [2]. For testing you should replace the 
> dtb and the uImage/zImage
>
> Philipp
>
>
> [1]: https://pastebin.com/mVjv3LDf
> [2]: 
> https://github.com/embed-3d/linux/tree/testing/bpi-m2-regulator-test-2

I am going to test it and come back with outcome

Thanks

[PATCH 0/3] Fix broken bananapi m2 devicetree/regulators

[Sergey Suloev]

On 02/11/2018 01:07 AM, Philipp Rossak wrote:
>
>
> On 10.02.2018 22:08, Sergey Suloev wrote:
>> On 02/11/2018 12:01 AM, Philipp Rossak wrote:
>>> Hey Sergey,
>>>
>>> Thanks for mentioning, but I think the problem has nothing to do 
>>> with those patches. I tested them with the v4.15.0 Kernel since this 
>>> is the last stable release and we are right now in the merging window.
>>>
>>> I tested the latest mainline, without those patches and the kernel 
>>> is not booting (I can't see any uart output).
>>>
>>> Thanks,
>>> Philipp
>>>
>>> On 10.02.2018 14:56, Sergey Suloev wrote:
>>>> On 02/09/2018 08:52 PM, Philipp Rossak wrote:
>>>>> This patchseries fixes the bananapi m1 devicetree, to be able to 
>>>>> boot again.
>>>>> The first two patches update/improve the devicetree and the last 
>>>>> patch adds
>>>>> all missing regulators.
>>>>>
>>>>> Regards,
>>>>> Philipp
>>>>>
>>>>> Philipp Rossak (3):
>>>>> ?? arm: dts: sun6i: a31s: bpi-m2: update mmc supply nodes
>>>>> ?? arm: dts: sun6i: a31s: bpi-m2: improve pmic properties
>>>>> ?? arm: dts: sun6i: a31s: fix: bpi-m2: add missing regulators
>>>>>
>>>>> ? arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 70 
>>>>> +++++++++++++++++++++++-
>>>>> ? 1 file changed, 67 insertions(+), 3 deletions(-)
>>>>>
>>>> patches are not working
>>>>
>>>> Thanks
>>>>
>> same problem, but after applying the patches my device is till hanging.
>>
>>
> Can you please share a bootlog? Here is mine [1]. As you can see I'm 
> able to boot.
> I build it with this branch [2]. For testing you should replace the 
> dtb and the uImage/zImage
>
> Philipp
>
>
> [1]: https://pastebin.com/mVjv3LDf
> [2]: 
> https://github.com/embed-3d/linux/tree/testing/bpi-m2-regulator-test-2

My dmesg is very similar to yours unless it hangs on the last line [1]. 
For this test I used kernel from tag v4.15 with no additional patching.

[1] https://pastebin.com/3a6bk5Dk

[PATCH 0/3] Fix broken bananapi m2 devicetree/regulators

[Philipp Rossak]

Am Sonntag, den 11.02.2018, 10:55 +0300 schrieb Sergey Suloev:
> On 02/11/2018 01:07 AM, Philipp Rossak wrote:
> > 
> > 
> > On 10.02.2018 22:08, Sergey Suloev wrote:
> > > On 02/11/2018 12:01 AM, Philipp Rossak wrote:
> > > > Hey Sergey,
> > > > 
> > > > Thanks for mentioning, but I think the problem has nothing to
> > > > do?
> > > > with those patches. I tested them with the v4.15.0 Kernel since
> > > > this?
> > > > is the last stable release and we are right now in the merging
> > > > window.
> > > > 
> > > > I tested the latest mainline, without those patches and the
> > > > kernel?
> > > > is not booting (I can't see any uart output).
> > > > 
> > > > Thanks,
> > > > Philipp
> > > > 
> > > > On 10.02.2018 14:56, Sergey Suloev wrote:
> > > > > On 02/09/2018 08:52 PM, Philipp Rossak wrote:
> > > > > > This patchseries fixes the bananapi m1 devicetree, to be
> > > > > > able to?
> > > > > > boot again.
> > > > > > The first two patches update/improve the devicetree and the
> > > > > > last?
> > > > > > patch adds
> > > > > > all missing regulators.
> > > > > > 
> > > > > > Regards,
> > > > > > Philipp
> > > > > > 
> > > > > > Philipp Rossak (3):
> > > > > > ?? arm: dts: sun6i: a31s: bpi-m2: update mmc supply nodes
> > > > > > ?? arm: dts: sun6i: a31s: bpi-m2: improve pmic properties
> > > > > > ?? arm: dts: sun6i: a31s: fix: bpi-m2: add missing
> > > > > > regulators
> > > > > > 
> > > > > > ? arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 70?
> > > > > > +++++++++++++++++++++++-
> > > > > > ? 1 file changed, 67 insertions(+), 3 deletions(-)
> > > > > > 
> > > > > 
> > > > > patches are not working
> > > > > 
> > > > > Thanks
> > > > > 
> > > 
> > > same problem, but after applying the patches my device is till
> > > hanging.
> > > 
> > > 
> > 
> > Can you please share a bootlog? Here is mine [1]. As you can see
> > I'm?
> > able to boot.
> > I build it with this branch [2]. For testing you should replace
> > the?
> > dtb and the uImage/zImage
> > 
> > Philipp
> > 
> > 
> > [1]: https://pastebin.com/mVjv3LDf
> > [2]:?
> > https://github.com/embed-3d/linux/tree/testing/bpi-m2-regulator-tes
> > t-2
> 
> My dmesg is very similar to yours unless it hangs on the last line
> [1].?
> For this test I used kernel from tag v4.15 with no additional
> patching.
> 
> [1] https://pastebin.com/3a6bk5Dk
> 
> 

For me it looks like you have a different kernel and also an different
dtb that you patch! And you are applying also a fixup script.
These patches should be applied on top of linux mainline. 

fixup script:
Applying kernel provided DT fixup script (sun6i-a31s-fixup.scr)


Linux versions:
4.15.0-00003-g1bbe5edde691   vs   4.15.0-sunxi-dirty

In addition to that you are also booting into fb/hdmi.

If you use my branch (uImage and dtb) and replace the current boot.cmd
with this (to get the boot.scr you need to use mkimage) it should work:

setenv bootargs console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait
panic=10
load mmc 0:1 0x43000000 ${fdtfile} || load mmc 0:1 0x43000000
boot/${fdtfile}
load mmc 0:1 0x42000000 uImage || load mmc 0:1 0x42000000 boot/uImage
bootm 0x42000000 - 0x43000000

[PATCH 0/3] Fix broken bananapi m2 devicetree/regulators

[Sergey Suloev]

On 02/11/2018 02:30 PM, Philipp Rossak wrote:
> Am Sonntag, den 11.02.2018, 10:55 +0300 schrieb Sergey Suloev:
>> On 02/11/2018 01:07 AM, Philipp Rossak wrote:
>>>
>>> On 10.02.2018 22:08, Sergey Suloev wrote:
>>>> On 02/11/2018 12:01 AM, Philipp Rossak wrote:
>>>>> Hey Sergey,
>>>>>
>>>>> Thanks for mentioning, but I think the problem has nothing to
>>>>> do
>>>>> with those patches. I tested them with the v4.15.0 Kernel since
>>>>> this
>>>>> is the last stable release and we are right now in the merging
>>>>> window.
>>>>>
>>>>> I tested the latest mainline, without those patches and the
>>>>> kernel
>>>>> is not booting (I can't see any uart output).
>>>>>
>>>>> Thanks,
>>>>> Philipp
>>>>>
>>>>> On 10.02.2018 14:56, Sergey Suloev wrote:
>>>>>> On 02/09/2018 08:52 PM, Philipp Rossak wrote:
>>>>>>> This patchseries fixes the bananapi m1 devicetree, to be
>>>>>>> able to
>>>>>>> boot again.
>>>>>>> The first two patches update/improve the devicetree and the
>>>>>>> last
>>>>>>> patch adds
>>>>>>> all missing regulators.
>>>>>>>
>>>>>>> Regards,
>>>>>>> Philipp
>>>>>>>
>>>>>>> Philipp Rossak (3):
>>>>>>>  ?? arm: dts: sun6i: a31s: bpi-m2: update mmc supply nodes
>>>>>>>  ?? arm: dts: sun6i: a31s: bpi-m2: improve pmic properties
>>>>>>>  ?? arm: dts: sun6i: a31s: fix: bpi-m2: add missing
>>>>>>> regulators
>>>>>>>
>>>>>>>  ? arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 70
>>>>>>> +++++++++++++++++++++++-
>>>>>>>  ? 1 file changed, 67 insertions(+), 3 deletions(-)
>>>>>>>
>>>>>> patches are not working
>>>>>>
>>>>>> Thanks
>>>>>>
>>>> same problem, but after applying the patches my device is till
>>>> hanging.
>>>>
>>>>
>>> Can you please share a bootlog? Here is mine [1]. As you can see
>>> I'm
>>> able to boot.
>>> I build it with this branch [2]. For testing you should replace
>>> the
>>> dtb and the uImage/zImage
>>>
>>> Philipp
>>>
>>>
>>> [1]: https://pastebin.com/mVjv3LDf
>>> [2]:
>>> https://github.com/embed-3d/linux/tree/testing/bpi-m2-regulator-tes
>>> t-2
>> My dmesg is very similar to yours unless it hangs on the last line
>> [1].
>> For this test I used kernel from tag v4.15 with no additional
>> patching.
>>
>> [1] https://pastebin.com/3a6bk5Dk
>>
>>
> For me it looks like you have a different kernel and also an different
> dtb that you patch! And you are applying also a fixup script.
> These patches should be applied on top of linux mainline.
>
> fixup script:
> Applying kernel provided DT fixup script (sun6i-a31s-fixup.scr)
>
>
> Linux versions:
> 4.15.0-00003-g1bbe5edde691   vs   4.15.0-sunxi-dirty
>
> In addition to that you are also booting into fb/hdmi.
>
> If you use my branch (uImage and dtb) and replace the current boot.cmd
> with this (to get the boot.scr you need to use mkimage) it should work:
>
> setenv bootargs console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait
> panic=10
> load mmc 0:1 0x43000000 ${fdtfile} || load mmc 0:1 0x43000000
> boot/${fdtfile}
> load mmc 0:1 0x42000000 uImage || load mmc 0:1 0x42000000 boot/uImage
> bootm 0x42000000 - 0x43000000
>
the script is doing nothing, it is empty. The problem is related to hdmi.

The following dts code makes it happen:

&hdmi {
 ??????? status = "okay";
};

[PATCH 0/3] Fix broken bananapi m2 devicetree/regulators

[Sergey Suloev]

On 02/11/2018 02:30 PM, Philipp Rossak wrote:
> Am Sonntag, den 11.02.2018, 10:55 +0300 schrieb Sergey Suloev:
>> On 02/11/2018 01:07 AM, Philipp Rossak wrote:
>>>
>>> On 10.02.2018 22:08, Sergey Suloev wrote:
>>>> On 02/11/2018 12:01 AM, Philipp Rossak wrote:
>>>>> Hey Sergey,
>>>>>
>>>>> Thanks for mentioning, but I think the problem has nothing to
>>>>> do
>>>>> with those patches. I tested them with the v4.15.0 Kernel since
>>>>> this
>>>>> is the last stable release and we are right now in the merging
>>>>> window.
>>>>>
>>>>> I tested the latest mainline, without those patches and the
>>>>> kernel
>>>>> is not booting (I can't see any uart output).
>>>>>
>>>>> Thanks,
>>>>> Philipp
>>>>>
>>>>> On 10.02.2018 14:56, Sergey Suloev wrote:
>>>>>> On 02/09/2018 08:52 PM, Philipp Rossak wrote:
>>>>>>> This patchseries fixes the bananapi m1 devicetree, to be
>>>>>>> able to
>>>>>>> boot again.
>>>>>>> The first two patches update/improve the devicetree and the
>>>>>>> last
>>>>>>> patch adds
>>>>>>> all missing regulators.
>>>>>>>
>>>>>>> Regards,
>>>>>>> Philipp
>>>>>>>
>>>>>>> Philipp Rossak (3):
>>>>>>>  ?? arm: dts: sun6i: a31s: bpi-m2: update mmc supply nodes
>>>>>>>  ?? arm: dts: sun6i: a31s: bpi-m2: improve pmic properties
>>>>>>>  ?? arm: dts: sun6i: a31s: fix: bpi-m2: add missing
>>>>>>> regulators
>>>>>>>
>>>>>>>  ? arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts | 70
>>>>>>> +++++++++++++++++++++++-
>>>>>>>  ? 1 file changed, 67 insertions(+), 3 deletions(-)
>>>>>>>
>>>>>> patches are not working
>>>>>>
>>>>>> Thanks
>>>>>>
>>>> same problem, but after applying the patches my device is till
>>>> hanging.
>>>>
>>>>
>>> Can you please share a bootlog? Here is mine [1]. As you can see
>>> I'm
>>> able to boot.
>>> I build it with this branch [2]. For testing you should replace
>>> the
>>> dtb and the uImage/zImage
>>>
>>> Philipp
>>>
>>>
>>> [1]: https://pastebin.com/mVjv3LDf
>>> [2]:
>>> https://github.com/embed-3d/linux/tree/testing/bpi-m2-regulator-tes
>>> t-2
>> My dmesg is very similar to yours unless it hangs on the last line
>> [1].
>> For this test I used kernel from tag v4.15 with no additional
>> patching.
>>
>> [1] https://pastebin.com/3a6bk5Dk
>>
>>
> For me it looks like you have a different kernel and also an different
> dtb that you patch! And you are applying also a fixup script.
> These patches should be applied on top of linux mainline.
>
> fixup script:
> Applying kernel provided DT fixup script (sun6i-a31s-fixup.scr)
>
>
> Linux versions:
> 4.15.0-00003-g1bbe5edde691   vs   4.15.0-sunxi-dirty
>
> In addition to that you are also booting into fb/hdmi.
>
> If you use my branch (uImage and dtb) and replace the current boot.cmd
> with this (to get the boot.scr you need to use mkimage) it should work:
>
> setenv bootargs console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait
> panic=10
> load mmc 0:1 0x43000000 ${fdtfile} || load mmc 0:1 0x43000000
> boot/${fdtfile}
> load mmc 0:1 0x42000000 uImage || load mmc 0:1 0x42000000 boot/uImage
> bootm 0x42000000 - 0x43000000
>
ok, I confirm that your patches are not related to the issue. It is the 
problem with sun4i drm / hdmi which is not working on bpi m2.

Thanks