diff mbox

[1/1] arm64: dts: rockchip: correct voltage selector Firefly-RK3399

Message ID 20180604171523.28454-1-xypron.glpk@gmx.de (mailing list archive)
State New, archived
Headers show

Commit Message

Heinrich Schuchardt June 4, 2018, 5:15 p.m. UTC
Without this patch the Firefly-RK3399 board boot process hangs after these
lines:

   fan53555-regulator 0-0040: FAN53555 Option[8] Rev[1] Detected!
   fan53555-reg: supplied by vcc_sys
   vcc1v8_s3: supplied by vcc_1v8

Blacklisting driver fan53555 allows booting.

The device tree uses a value of fcs,suspend-voltage-selector different to
any other board.

Changing this setting to the usual value is sufficient to enable booting.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
 arch/arm64/boot/dts/rockchip/rk3399-firefly.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Heinrich Schuchardt June 4, 2018, 9:45 p.m. UTC | #1
On 06/04/2018 07:15 PM, Heinrich Schuchardt wrote:
> Without this patch the Firefly-RK3399 board boot process hangs after these
> lines:
> 
>    fan53555-regulator 0-0040: FAN53555 Option[8] Rev[1] Detected!
>    fan53555-reg: supplied by vcc_sys
>    vcc1v8_s3: supplied by vcc_1v8
> 
> Blacklisting driver fan53555 allows booting.
> 
> The device tree uses a value of fcs,suspend-voltage-selector different to
> any other board.
> 
> Changing this setting to the usual value is sufficient to enable booting.
> 
> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
> ---
>  arch/arm64/boot/dts/rockchip/rk3399-firefly.dts | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
> index 4f28628aa091..50940ef844a7 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
> @@ -458,7 +458,7 @@
>  	vdd_cpu_b: regulator@40 {
>  		compatible = "silergy,syr827";
>  		reg = <0x40>;
> -		fcs,suspend-voltage-selector = <0>;
> +		fcs,suspend-voltage-selector = <1>;

The same value <1> is used in the legacy kernel:

https://github.com/rockchip-linux/kernel/blob/release-4.4/arch/arm64/boot/dts/rockchip/rk3399-firefly-linux.dts

	vdd_cpu_b: syr827@40 {
		compatible = "silergy,syr827";
		reg = <0x40>;
		vin-supply = <&vcc5v0_sys>;
		regulator-compatible = "fan53555-reg";
		regulator-name = "vdd_cpu_b";
		regulator-min-microvolt = <712500>;
		regulator-max-microvolt = <1500000>;
		regulator-ramp-delay = <1000>;
		vsel-gpios = <&gpio1 18 GPIO_ACTIVE_HIGH>;
		fcs,suspend-voltage-selector = <1>;
		regulator-always-on;
		regulator-boot-on;
		regulator-initial-state = <3>;
			regulator-state-mem {
			regulator-off-in-suspend;
		};
};

Best regards

Heinrich


>  		regulator-name = "vdd_cpu_b";
>  		regulator-min-microvolt = <712500>;
>  		regulator-max-microvolt = <1500000>;
>
Heiko Stübner June 14, 2018, 12:55 p.m. UTC | #2
Am Montag, 4. Juni 2018, 19:15:23 CEST schrieb Heinrich Schuchardt:
> Without this patch the Firefly-RK3399 board boot process hangs after these
> lines:
> 
>    fan53555-regulator 0-0040: FAN53555 Option[8] Rev[1] Detected!
>    fan53555-reg: supplied by vcc_sys
>    vcc1v8_s3: supplied by vcc_1v8
> 
> Blacklisting driver fan53555 allows booting.
> 
> The device tree uses a value of fcs,suspend-voltage-selector different to
> any other board.
> 
> Changing this setting to the usual value is sufficient to enable booting.
> 
> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

applied for 4.19.

I've amended your commit message with the info from your reply about
the vendor kernel using the same value and added an appropriate Fixes
tag to possibly get it merged into stable.


Thanks
Heiko
Heiko Stübner June 19, 2018, 11:21 p.m. UTC | #3
Hi Heinrich,

Am Donnerstag, 14. Juni 2018, 14:55:27 CEST schrieb Heiko Stuebner:
> Am Montag, 4. Juni 2018, 19:15:23 CEST schrieb Heinrich Schuchardt:
> > Without this patch the Firefly-RK3399 board boot process hangs after these
> > lines:
> > 
> >    fan53555-regulator 0-0040: FAN53555 Option[8] Rev[1] Detected!
> >    fan53555-reg: supplied by vcc_sys
> >    vcc1v8_s3: supplied by vcc_1v8
> > 
> > Blacklisting driver fan53555 allows booting.
> > 
> > The device tree uses a value of fcs,suspend-voltage-selector different to
> > any other board.
> > 
> > Changing this setting to the usual value is sufficient to enable booting.
> > 
> > Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
> 
> applied for 4.19.

and dropped again.

Sadly it looks like the patch causes conflicts with at least one firefly
board in a kernelci lab. My own is currently not ready to use, so I cannot
look myself right now.

The issue kernelci people described sounded quite a lot like the one
in your commit message, so my current theory is that the
suspend-voltage-selector must in some form corespond to the
cpu_b_sleep_h gpio setting we're currently not handling at all, which
would therefore depend on how the bootloader sets this up.


Heiko
Heinrich Schuchardt June 20, 2018, 5:59 a.m. UTC | #4
On 06/20/2018 01:21 AM, Heiko Stuebner wrote:
> Hi Heinrich,
> 
> Am Donnerstag, 14. Juni 2018, 14:55:27 CEST schrieb Heiko Stuebner:
>> Am Montag, 4. Juni 2018, 19:15:23 CEST schrieb Heinrich Schuchardt:
>>> Without this patch the Firefly-RK3399 board boot process hangs after these
>>> lines:
>>>
>>>    fan53555-regulator 0-0040: FAN53555 Option[8] Rev[1] Detected!
>>>    fan53555-reg: supplied by vcc_sys
>>>    vcc1v8_s3: supplied by vcc_1v8
>>>
>>> Blacklisting driver fan53555 allows booting.
>>>
>>> The device tree uses a value of fcs,suspend-voltage-selector different to
>>> any other board.
>>>
>>> Changing this setting to the usual value is sufficient to enable booting.
>>>
>>> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
>>
>> applied for 4.19.
> 
> and dropped again.
> 
> Sadly it looks like the patch causes conflicts with at least one firefly
> board in a kernelci lab. My own is currently not ready to use, so I cannot
> look myself right now.
> 
> The issue kernelci people described sounded quite a lot like the one
> in your commit message, so my current theory is that the
> suspend-voltage-selector must in some form corespond to the
> cpu_b_sleep_h gpio setting we're currently not handling at all, which
> would therefore depend on how the bootloader sets this up.
> 

Hi Heiko,

please, provide a link to the log displaying the issue and the contact
who can provide the exact setup.

I have been testing with U-Boot as boot loader.

Best regards

Heinrich
Heiko Stübner June 20, 2018, 9:15 a.m. UTC | #5
Hi Heinrich,

Am Mittwoch, 20. Juni 2018, 07:59:34 CEST schrieb Heinrich Schuchardt:
> On 06/20/2018 01:21 AM, Heiko Stuebner wrote:
> > Am Donnerstag, 14. Juni 2018, 14:55:27 CEST schrieb Heiko Stuebner:
> >> Am Montag, 4. Juni 2018, 19:15:23 CEST schrieb Heinrich Schuchardt:
> >>> Without this patch the Firefly-RK3399 board boot process hangs after
> >>> these
> >>> 
> >>> lines:
> >>>    fan53555-regulator 0-0040: FAN53555 Option[8] Rev[1] Detected!
> >>>    fan53555-reg: supplied by vcc_sys
> >>>    vcc1v8_s3: supplied by vcc_1v8
> >>> 
> >>> Blacklisting driver fan53555 allows booting.
> >>> 
> >>> The device tree uses a value of fcs,suspend-voltage-selector different
> >>> to
> >>> any other board.
> >>> 
> >>> Changing this setting to the usual value is sufficient to enable
> >>> booting.
> >>> 
> >>> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
> >> 
> >> applied for 4.19.
> > 
> > and dropped again.
> > 
> > Sadly it looks like the patch causes conflicts with at least one firefly
> > board in a kernelci lab. My own is currently not ready to use, so I cannot
> > look myself right now.
> > 
> > The issue kernelci people described sounded quite a lot like the one
> > in your commit message, so my current theory is that the
> > suspend-voltage-selector must in some form corespond to the
> > cpu_b_sleep_h gpio setting we're currently not handling at all, which
> > would therefore depend on how the bootloader sets this up.
>
> please, provide a link to the log displaying the issue and the contact
> who can provide the exact setup.
> 
> I have been testing with U-Boot as boot loader.

failing boot can be found on
https://kernelci.org/boot/id/5b2a053d59b514569079a872/

As this board is sitting in the "lab-baylibre-seattle", I guess
Kevin Hilman (Cc'ed now) is the one that can say a bit more about the
board setup.


The more interesting question would be how to make sure we don't
die with possible different bootloader versions. As I don't really thing 
"upgrade your bootloader" is an always valid option.


Heiko
Heinrich Schuchardt June 20, 2018, 7:57 p.m. UTC | #6
On 06/20/2018 11:15 AM, Heiko Stübner wrote:
> Hi Heinrich,
> 
> Am Mittwoch, 20. Juni 2018, 07:59:34 CEST schrieb Heinrich Schuchardt:
>> On 06/20/2018 01:21 AM, Heiko Stuebner wrote:
>>> Am Donnerstag, 14. Juni 2018, 14:55:27 CEST schrieb Heiko Stuebner:
>>>> Am Montag, 4. Juni 2018, 19:15:23 CEST schrieb Heinrich Schuchardt:
>>>>> Without this patch the Firefly-RK3399 board boot process hangs after
>>>>> these
>>>>>
>>>>> lines:
>>>>>    fan53555-regulator 0-0040: FAN53555 Option[8] Rev[1] Detected!
>>>>>    fan53555-reg: supplied by vcc_sys
>>>>>    vcc1v8_s3: supplied by vcc_1v8
>>>>>
>>>>> Blacklisting driver fan53555 allows booting.
>>>>>
>>>>> The device tree uses a value of fcs,suspend-voltage-selector different
>>>>> to
>>>>> any other board.
>>>>>
>>>>> Changing this setting to the usual value is sufficient to enable
>>>>> booting.
>>>>>
>>>>> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
>>>>
>>>> applied for 4.19.
>>>
>>> and dropped again.
>>>
>>> Sadly it looks like the patch causes conflicts with at least one firefly
>>> board in a kernelci lab. My own is currently not ready to use, so I cannot
>>> look myself right now.
>>>
>>> The issue kernelci people described sounded quite a lot like the one
>>> in your commit message, so my current theory is that the
>>> suspend-voltage-selector must in some form corespond to the
>>> cpu_b_sleep_h gpio setting we're currently not handling at all, which
>>> would therefore depend on how the bootloader sets this up.
>>
>> please, provide a link to the log displaying the issue and the contact
>> who can provide the exact setup.
>>
>> I have been testing with U-Boot as boot loader.
> 
> failing boot can be found on
> https://kernelci.org/boot/id/5b2a053d59b514569079a872/
> 
> As this board is sitting in the "lab-baylibre-seattle", I guess
> Kevin Hilman (Cc'ed now) is the one that can say a bit more about the
> board setup.
> 
> 
> The more interesting question would be how to make sure we don't
> die with possible different bootloader versions. As I don't really thing 
> "upgrade your bootloader" is an always valid option.
> 
> 
> Heiko
> 

Hi Kevin,

the RK3399-Firefly was booted on lab-baylibre-seattle with
U-Boot 2017.05-rc3-00131-gf79fd58d5f5c-dirty

f79fd58d5f5c is not a commit in U-Boot master.
The version number tells us it is 131 patches ahead of U-Boot 2017.05-rc3.
Dirty means the source contained uncommitted changes.

Unfortunately this is not a reproducible test environment.
Could you, please, provide the build recipe to reproduce the U-Boot
BayLibre is using?
Would it be possible to use mainline U-Boot in kernelci for this board?

Best regards

Heinrich
Heinrich Schuchardt June 21, 2018, 12:57 a.m. UTC | #7
On 06/20/2018 09:57 PM, Heinrich Schuchardt wrote:
> On 06/20/2018 11:15 AM, Heiko Stübner wrote:
>> Hi Heinrich,
>>
>> Am Mittwoch, 20. Juni 2018, 07:59:34 CEST schrieb Heinrich Schuchardt:
>>> On 06/20/2018 01:21 AM, Heiko Stuebner wrote:
>>>> Am Donnerstag, 14. Juni 2018, 14:55:27 CEST schrieb Heiko Stuebner:
>>>>> Am Montag, 4. Juni 2018, 19:15:23 CEST schrieb Heinrich Schuchardt:
>>>>>> Without this patch the Firefly-RK3399 board boot process hangs after
>>>>>> these
>>>>>>
>>>>>> lines:
>>>>>>    fan53555-regulator 0-0040: FAN53555 Option[8] Rev[1] Detected!
>>>>>>    fan53555-reg: supplied by vcc_sys
>>>>>>    vcc1v8_s3: supplied by vcc_1v8
>>>>>>
>>>>>> Blacklisting driver fan53555 allows booting.
>>>>>>
>>>>>> The device tree uses a value of fcs,suspend-voltage-selector different
>>>>>> to
>>>>>> any other board.
>>>>>>
>>>>>> Changing this setting to the usual value is sufficient to enable
>>>>>> booting.
>>>>>>
>>>>>> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
>>>>>
>>>>> applied for 4.19.
>>>>
>>>> and dropped again.
>>>>
>>>> Sadly it looks like the patch causes conflicts with at least one firefly
>>>> board in a kernelci lab. My own is currently not ready to use, so I cannot
>>>> look myself right now.
>>>>
>>>> The issue kernelci people described sounded quite a lot like the one
>>>> in your commit message, so my current theory is that the
>>>> suspend-voltage-selector must in some form corespond to the
>>>> cpu_b_sleep_h gpio setting we're currently not handling at all, which
>>>> would therefore depend on how the bootloader sets this up.
>>>
>>> please, provide a link to the log displaying the issue and the contact
>>> who can provide the exact setup.
>>>
>>> I have been testing with U-Boot as boot loader.
>>
>> failing boot can be found on
>> https://kernelci.org/boot/id/5b2a053d59b514569079a872/
>>
>> As this board is sitting in the "lab-baylibre-seattle", I guess
>> Kevin Hilman (Cc'ed now) is the one that can say a bit more about the
>> board setup.
>>
>>
>> The more interesting question would be how to make sure we don't
>> die with possible different bootloader versions. As I don't really thing 
>> "upgrade your bootloader" is an always valid option.
>>
>>
>> Heiko
>>
> 
> Hi Kevin,
> 
> the RK3399-Firefly was booted on lab-baylibre-seattle with
> U-Boot 2017.05-rc3-00131-gf79fd58d5f5c-dirty
> 
> f79fd58d5f5c is not a commit in U-Boot master.
> The version number tells us it is 131 patches ahead of U-Boot 2017.05-rc3.
> Dirty means the source contained uncommitted changes.
> 
> Unfortunately this is not a reproducible test environment.
> Could you, please, provide the build recipe to reproduce the U-Boot
> BayLibre is using?
> Would it be possible to use mainline U-Boot in kernelci for this board?
> 
> Best regards
> 
> Heinrich
> 

I have now built the last available release of U-Boot (v2018.05)
according to the following recipe:

git clone https://github.com/xypron/u-boot-build.git
cd u-boot-build/
git checkout firefly-rk3399-rkloader
# commit 251b12fb4f0eabfff2d0552d0807d8ddc44ae2aa
# tag firefly-rk3399-rkloader-v2018.05
make
make install DESTDIR=foo
cd foo/usr/lib/u-boot/firefly-rk3399/
# be careful to specify your SD card as device!
./sd_fusing /dev/sdX

# in U-Boot 2018.05 (Jun 21 2018 - 02:33:12 +0200)
load mmc 1:1 ${fdt_addr_r} 2018-06-20/rk3399-firefly.dtb
load mmc 1:1 ${kernel_addr_r} 2018-06-20/Image
booti ${kernel_addr_r} - ${fdt_addr_r}

The error observed in kernelci when initializing the FAN53555 driver
does not occur.

The console log is here:
https://gist.github.com/xypron/34b6485deabfc8172f978b5a99705466

Best regards

Heinrich
Heiko Stübner June 21, 2018, 11:37 a.m. UTC | #8
Am Donnerstag, 21. Juni 2018, 02:57:02 CEST schrieb Heinrich Schuchardt:
> On 06/20/2018 09:57 PM, Heinrich Schuchardt wrote:
> > On 06/20/2018 11:15 AM, Heiko Stübner wrote:
> >> Hi Heinrich,
> >>
> >> Am Mittwoch, 20. Juni 2018, 07:59:34 CEST schrieb Heinrich Schuchardt:
> >>> On 06/20/2018 01:21 AM, Heiko Stuebner wrote:
> >>>> Am Donnerstag, 14. Juni 2018, 14:55:27 CEST schrieb Heiko Stuebner:
> >>>>> Am Montag, 4. Juni 2018, 19:15:23 CEST schrieb Heinrich Schuchardt:
> >>>>>> Without this patch the Firefly-RK3399 board boot process hangs after
> >>>>>> these
> >>>>>>
> >>>>>> lines:
> >>>>>>    fan53555-regulator 0-0040: FAN53555 Option[8] Rev[1] Detected!
> >>>>>>    fan53555-reg: supplied by vcc_sys
> >>>>>>    vcc1v8_s3: supplied by vcc_1v8
> >>>>>>
> >>>>>> Blacklisting driver fan53555 allows booting.
> >>>>>>
> >>>>>> The device tree uses a value of fcs,suspend-voltage-selector different
> >>>>>> to
> >>>>>> any other board.
> >>>>>>
> >>>>>> Changing this setting to the usual value is sufficient to enable
> >>>>>> booting.
> >>>>>>
> >>>>>> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
> >>>>>
> >>>>> applied for 4.19.
> >>>>
> >>>> and dropped again.
> >>>>
> >>>> Sadly it looks like the patch causes conflicts with at least one firefly
> >>>> board in a kernelci lab. My own is currently not ready to use, so I cannot
> >>>> look myself right now.
> >>>>
> >>>> The issue kernelci people described sounded quite a lot like the one
> >>>> in your commit message, so my current theory is that the
> >>>> suspend-voltage-selector must in some form corespond to the
> >>>> cpu_b_sleep_h gpio setting we're currently not handling at all, which
> >>>> would therefore depend on how the bootloader sets this up.
> >>>
> >>> please, provide a link to the log displaying the issue and the contact
> >>> who can provide the exact setup.
> >>>
> >>> I have been testing with U-Boot as boot loader.
> >>
> >> failing boot can be found on
> >> https://kernelci.org/boot/id/5b2a053d59b514569079a872/
> >>
> >> As this board is sitting in the "lab-baylibre-seattle", I guess
> >> Kevin Hilman (Cc'ed now) is the one that can say a bit more about the
> >> board setup.
> >>
> >>
> >> The more interesting question would be how to make sure we don't
> >> die with possible different bootloader versions. As I don't really thing 
> >> "upgrade your bootloader" is an always valid option.
> >>
> >>
> >> Heiko
> >>
> > 
> > Hi Kevin,
> > 
> > the RK3399-Firefly was booted on lab-baylibre-seattle with
> > U-Boot 2017.05-rc3-00131-gf79fd58d5f5c-dirty
> > 
> > f79fd58d5f5c is not a commit in U-Boot master.
> > The version number tells us it is 131 patches ahead of U-Boot 2017.05-rc3.
> > Dirty means the source contained uncommitted changes.
> > 
> > Unfortunately this is not a reproducible test environment.
> > Could you, please, provide the build recipe to reproduce the U-Boot
> > BayLibre is using?
> > Would it be possible to use mainline U-Boot in kernelci for this board?
> > 
> > Best regards
> > 
> > Heinrich
> > 
> 
> I have now built the last available release of U-Boot (v2018.05)
> according to the following recipe:
> 
> git clone https://github.com/xypron/u-boot-build.git
> cd u-boot-build/
> git checkout firefly-rk3399-rkloader
> # commit 251b12fb4f0eabfff2d0552d0807d8ddc44ae2aa
> # tag firefly-rk3399-rkloader-v2018.05
> make
> make install DESTDIR=foo
> cd foo/usr/lib/u-boot/firefly-rk3399/
> # be careful to specify your SD card as device!
> ./sd_fusing /dev/sdX
> 
> # in U-Boot 2018.05 (Jun 21 2018 - 02:33:12 +0200)
> load mmc 1:1 ${fdt_addr_r} 2018-06-20/rk3399-firefly.dtb
> load mmc 1:1 ${kernel_addr_r} 2018-06-20/Image
> booti ${kernel_addr_r} - ${fdt_addr_r}
> 
> The error observed in kernelci when initializing the FAN53555 driver
> does not occur.
> 
> The console log is here:
> https://gist.github.com/xypron/34b6485deabfc8172f978b5a99705466

For one, the kernelci board uses the uboot SPL not rkloader as 1st stage.
But I also think the real culprit might be the unconfigured cpu_b_sleep_h
gpio. 

So far I haven't seen any code that touches this pin at all, so it is probably
floating and both mine as well as the kernelci board are from an early
production run, so I guess it is possible that either rkloader configures
this pin or some board change between ours and your board could make
the pin take another state.

Requiring replacement of a bootloader still isn't the best way forward,
so my current idea would be to let the driver know the vsel-gpio via the
devicetree and have the driver then make sure the gpio is set correctly
_after_ setting the regulator voltage.


Heiko
diff mbox

Patch

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
index 4f28628aa091..50940ef844a7 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
@@ -458,7 +458,7 @@ 
 	vdd_cpu_b: regulator@40 {
 		compatible = "silergy,syr827";
 		reg = <0x40>;
-		fcs,suspend-voltage-selector = <0>;
+		fcs,suspend-voltage-selector = <1>;
 		regulator-name = "vdd_cpu_b";
 		regulator-min-microvolt = <712500>;
 		regulator-max-microvolt = <1500000>;