S805/S812 Device Tree upstreaming (was: Testing.)

S805/S812 Device Tree upstreaming (was: Testing.)

[Martin Blumenstingl]

On Mon, May 8, 2017 at 11:42 AM, Oleg <balbes-150@yandex.ru> wrote:
>
>> adding the configuration should be enough - Neil did a good job with
>> the actual driver code (it's working fine for me :))
>
> I added to config this variable. This kernel changed the behavior.
> Now there is a reaction to change :)
>
> https://yadi.sk/i/rzF14Hx03HqeRh
strange, I've not seen this crash before.
I can try building a kernel myself with your config next weekend - if
it works for me then I suspect that it's a GCC issue (you're using the
Linaro GCC 4.9.4 - while I'm using standard GCC 6.3.1
(arm-none-eabi-gcc from Arch Linux' community repo)

>> I had a quick look at the .dts files - on my Akaso M8S GPIOZ_1 is not
>> connected anywhere (at least toggling the GPIO doesn't change anything
>> in terms of USB VBUS signal).
>> however, your board has: gpio-vbus-power = "GPIOZ_1";
>> it's very likely that the GL852 hub is powered off by default and is
>> powered on by enabling GPIOZ_1
>> but since my .dts is not enabling GPIOZ_1 the hub stays powered off
>> and USB is not working for you
>> (in other words: this will require additional changes in the .dts to
>> make it work)
>
> I found dtb to kernel 3.14 the string
>
> gpio-vbus-power = "GPIOZ_1";
>
> You can simply copy it to the unit or it needs to change according to
> certain rules ?
>
> &usb0 {
>     status = "okay";
> };
you can have a look at the Vega S95 devicetree [0] which enables
GPIODV_24 (instead of GPIOZ_1, but that's easy to replace) for USB
VBUS. it then passes the regulator to the phy


Regards,
Martin


[0] https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi#L67

S805/S812 Device Tree upstreaming (was: Testing.)

[Oleg]

> strange, I've not seen this crash before.
> I can try building a kernel myself with your config next weekend - if
> it works for me then I suspect that it's a GCC issue (you're using the
> Linaro GCC 4.9.4 - while I'm using standard GCC 6.3.1
> (arm-none-eabi-gcc from Arch Linux' community repo)
1. Collected the version of the kernel with gcc linaro 6.3.1 . The 
result is the same crash.
2. Gathered option without the option CONFIG_PWM_MESON no longer drop core.

> you can have a look at the Vega S95 devicetree [0] which enables
> GPIODV_24 (instead of GPIOZ_1, but that's easy to replace) for USB
> VBUS. it then passes the regulator to the phy
>
>
> Regards,
> Martin
>
>
> [0] https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi#L67
Thanks for the info, soon I will check this option.

S805/S812 Device Tree upstreaming (was: Testing.)

[Oleg]

>> I found dtb to kernel 3.14 the string
>>
>> gpio-vbus-power = "GPIOZ_1";
>>
>> You can simply copy it to the unit or it needs to change according to
>> certain rules ?
>>
>> &usb0 {
>>      status = "okay";
>> };
> you can have a look at the Vega S95 devicetree [0] which enables
> GPIODV_24 (instead of GPIOZ_1, but that's easy to replace) for USB
> VBUS. it then passes the regulator to the phy
>
>
> Regards,
> Martin
>
>
> [0] https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi#L67

Is that about right ?

https://github.com/150balbes/Amlogic_s8xx-kernel/blob/test/arch/arm/boot/dts/meson8m2-mxiii-plus.dts#L80

S805/S812 Device Tree upstreaming (was: Testing.)

[Martin Blumenstingl]

Hi Oleg,

On Thu, May 11, 2017 at 11:54 AM, Oleg <balbes-150@yandex.ru> wrote:
>
>>> I found dtb to kernel 3.14 the string
>>>
>>> gpio-vbus-power = "GPIOZ_1";
>>>
>>> You can simply copy it to the unit or it needs to change according to
>>> certain rules ?
>>>
>>> &usb0 {
>>>      status = "okay";
>>> };
>>
>> you can have a look at the Vega S95 devicetree [0] which enables
>> GPIODV_24 (instead of GPIOZ_1, but that's easy to replace) for USB
>> VBUS. it then passes the regulator to the phy
>>
>>
>> Regards,
>> Martin
>>
>>
>> [0]
>> https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi#L67
>
>
> Is that about right ?
>
> https://github.com/150balbes/Amlogic_s8xx-kernel/blob/test/arch/arm/boot/dts/meson8m2-mxiii-plus.dts#L80
you have to play around and see whether you need "enable-active-high;"
or not (depends on the original .dts / Amlogic kernel implementation)

Additionally you need to add "phy-supply = <&usb_vbus>;" to the
usb0_phy node - otherwise the PHY does not know that it has to enable
the usb_vbus regulator.


Regards,
Martin

S805/S812 Device Tree upstreaming (was: Testing.)

[Oleg]

> you have to play around and see whether you need "enable-active-high;"
> or not (depends on the original .dts / Amlogic kernel implementation)
>
> Additionally you need to add "phy-supply = <&usb_vbus>;" to the
> usb0_phy node - otherwise the PHY does not know that it has to enable
> the usb_vbus regulator.
>
>
> Regards,
> Martin
Hi.
I tried several different options.
The result is about the same.


[    5.714478] tegra-ehci: Tegra EHCI driver
[    5.718461] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    5.724554] ohci-pci: OHCI PCI platform driver
[    5.728986] ohci-platform: OHCI generic platform driver
[    5.734256] ohci-omap3: OHCI OMAP3 driver
[    5.738217] SPEAr-ohci: OHCI SPEAr driver
[    5.742204] ohci-st: OHCI STMicroelectronics driver
[    5.747077] ohci-atmel: OHCI Atmel driver
[    5.751365] usbcore: registered new interface driver usb-storage
[    5.759402] i2c /dev entries driver
[    5.765797] meson_wdt c1109900.watchdog: Watchdog enabled (timeout=8 
sec, nowayout=0)
[    5.770002] sdhci: Secure Digital Host Controller Interface driver
[    5.774398] sdhci: Copyright(c) Pierre Ossman
[    5.779584] Synopsys Designware Multimedia Card Interface Driver
[    5.786645] sdhci-pltfm: SDHCI platform and OF driver helper
[    5.791544] of_pwm_get(): PWM chip not found
[    5.794619] leds_pwm pwmleds: unable to request PWM for 
m8s:blue:power: -517
[    5.801821] ledtrig-cpu: registered to indicate activity on CPUs
[    5.807847] usbcore: registered new interface driver usbhid
[    5.813133] usbhid: USB HID core driver
[    5.874177] NET: Registered protocol family 10
[    5.874892] Segment Routing with IPv6
[    5.876682] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[    5.883038] NET: Registered protocol family 17
[    5.886958] can: controller area network core (rev 20120528 abi 9)
[    5.893167] NET: Registered protocol family 29
[    5.897529] can: raw protocol (rev 20120528)
[    5.901775] can: broadcast manager protocol (rev 20161123 t)
[    5.907424] can: netlink gateway (rev 20130117) max_hops=1
[    5.913163] Key type dns_resolver registered
[    5.917401] ThumbEE CPU extension supported.
[    5.921369] Registering SWP/SWPB emulation handler
[    5.927806] Btrfs loaded, crc32c=crc32c-generic
[    5.935944] dwc2 c9040000.usb: c9040000.usb supply vusb_d not found, 
using dummy regulator
[    5.938931] dwc2 c9040000.usb: c9040000.usb supply vusb_a not found, 
using dummy regulator
[    5.948296] phy phy-c1108800.phy.0: USB ID detect failed!
[    5.952506] phy phy-c1108800.phy.0: phy poweron failed --> -22
[    5.958424] dwc2: probe of c9040000.usb failed with error -22
[    5.965482] dwc2 c90c0000.usb: c90c0000.usb supply vusb_d not found, 
using dummy regulator
[    5.972288] dwc2 c90c0000.usb: c90c0000.usb supply vusb_a not found, 
using dummy regulator
[    6.112633] dwc2 c90c0000.usb: DWC OTG Controller
[    6.112703] dwc2 c90c0000.usb: new USB bus registered, assigned bus 
number 1
[    6.118756] dwc2 c90c0000.usb: irq 23, io mem 0xc90c0000
[    6.124706] hub 1-0:1.0: USB hub found
[    6.127775] hub 1-0:1.0: 1 port detected
[    6.136994] of_pwm_get(): PWM chip not found
[    6.137048] leds_pwm pwmleds: unable to request PWM for 
m8s:blue:power: -517
[    6.143362] hctosys: unable to open rtc device (rtc0)
[    6.148218] VCC3V3: disabling
[    6.150894] USB0_VBUS: disabling
[    6.156075] Freeing unused kernel memory: 2048K
[    6.552575] usb 1-1: new high-speed USB device number 2 using dwc2
[    6.762552] usb 1-1: device descriptor read/64, error -32
[    7.092974] usb 1-1: device descriptor read/64, error -32
[    7.422513] usb 1-1: new high-speed USB device number 3 using dwc2
[    7.632505] usb 1-1: device descriptor read/64, error -32
[    7.962503] usb 1-1: device descriptor read/64, error -32
[    8.292515] usb 1-1: new high-speed USB device number 4 using dwc2
[    8.732504] usb 1-1: device not accepting address 4, error -32
[    8.942503] usb 1-1: new high-speed USB device number 5 using dwc2
[    9.382504] usb 1-1: device not accepting address 5, error -32
[    9.382735] usb usb1-port1: unable to enumerate USB device
[  133.322520] random: crng init done



I tried to run the image without a INITRD. Got a kernel panic.


     5.587299] ThumbEE CPU extension supported.
[    5.591346] Registering SWP/SWPB emulation handler
[    5.597785] Btrfs loaded, crc32c=crc32c-generic
[    5.605922] dwc2 c9040000.usb: c9040000.usb supply vusb_d not found, 
using dummy regulator
[    5.608891] dwc2 c9040000.usb: c9040000.usb supply vusb_a not found, 
using dummy regulator
[    5.618271] phy phy-c1108800.phy.0: USB ID detect failed!
[    5.622465] phy phy-c1108800.phy.0: phy poweron failed --> -22
[    5.628412] dwc2: probe of c9040000.usb failed with error -22
[    5.635451] dwc2 c90c0000.usb: c90c0000.usb supply vusb_d not found, 
using dummy regulator
[    5.642271] dwc2 c90c0000.usb: c90c0000.usb supply vusb_a not found, 
using dummy regulator
[    5.782627] dwc2 c90c0000.usb: DWC OTG Controller
[    5.782696] dwc2 c90c0000.usb: new USB bus registered, assigned bus 
number 1
[    5.788748] dwc2 c90c0000.usb: irq 23, io mem 0xc90c0000
[    5.794694] hub 1-0:1.0: USB hub found
[    5.797768] hub 1-0:1.0: 1 port detected
[    5.806231] hctosys: unable to open rtc device (rtc0)
[    5.806943] VCC3V3: disabling
[    5.809619] USB0_VBUS: disabling
[    5.813139] VFS: Cannot open root device "LABEL=ROOTFS" or 
unknown-block(0,0): error -6
[    5.820800] Please append a correct "root=" boot option; here are the 
available partitions:
[    5.829154] 0100           65536 ram0
[    5.829157]  (driver?)
[    5.835194] 0101           65536 ram1
[    5.835197]  (driver?)
[    5.841260] 0102           65536 ram2
[    5.841262]  (driver?)
[    5.847328] 0103           65536 ram3
[    5.847330]  (driver?)
[    5.853404] 0104           65536 ram4
[    5.853407]  (driver?)
[    5.859463] 0105           65536 ram5
[    5.859465]  (driver?)
[    5.865530] 0106           65536 ram6
[    5.865533]  (driver?)
[    5.871598] 0107           65536 ram7
[    5.871600]  (driver?)
[    5.877666] 0108           65536 ram8
[    5.877669]  (driver?)
[    5.883742] 0109           65536 ram9
[    5.883744]  (driver?)
[    5.889802] 010a           65536 ram10
[    5.889804]  (driver?)
[    5.895956] 010b           65536 ram11
[    5.895959]  (driver?)
[    5.902110] 010c           65536 ram12
[    5.902113]  (driver?)
[    5.908265] 010d           65536 ram13
[    5.908268]  (driver?)
[    5.914427] 010e           65536 ram14
[    5.914430]  (driver?)
[    5.920574] 010f           65536 ram15
[    5.920576]  (driver?)
[    5.926735] Kernel panic - not syncing: VFS: Unable to mount root fs 
on unknown-block(0,0)
[    5.934965] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.11.0+ #6
[    5.940941] Hardware name: Amlogic Meson platform
[    5.945644] [<c03105b8>] (unwind_backtrace) from [<c030bb10>] 
(show_stack+0x10/0x14)
[    5.953346] [<c030bb10>] (show_stack) from [<c07f562c>] 
(dump_stack+0x88/0x9c)
[    5.960542] [<c07f562c>] (dump_stack) from [<c03d3c28>] 
(panic+0xdc/0x268)
[    5.967392] [<c03d3c28>] (panic) from [<c1401218>] 
(mount_block_root+0x198/0x270)
[    5.974842] [<c1401218>] (mount_block_root) from [<c1401500>] 
(mount_root+0x124/0x12c)
[    5.982729] [<c1401500>] (mount_root) from [<c1401684>] 
(prepare_namespace+0x17c/0x1c4)
[    5.990704] [<c1401684>] (prepare_namespace) from [<c1400e50>] 
(kernel_init_freeable+0x1dc/0x1ec)
[    5.999548] [<c1400e50>] (kernel_init_freeable) from [<c0e80254>] 
(kernel_init+0x8/0x110)
[    6.007697] [<c0e80254>] (kernel_init) from [<c0307db8>] 
(ret_from_fork+0x14/0x3c)
[    6.015242] ---[ end Kernel panic - not syncing: VFS: Unable to mount 
root fs on unknown-block(0,0)



I have a suggestion that the reason for the stop run mine the not 
correct Assembly of the image.
I can see the log of system start-up do You have ?
What image are You using ?

S805/S812 Device Tree upstreaming (was: Testing.)

[Martin Blumenstingl]

Hi Oleg,

On Sat, May 13, 2017 at 9:25 PM, Oleg <balbes-150@yandex.ru> wrote:
>
>> you have to play around and see whether you need "enable-active-high;"
>> or not (depends on the original .dts / Amlogic kernel implementation)
>>
>> Additionally you need to add "phy-supply = <&usb_vbus>;" to the
>> usb0_phy node - otherwise the PHY does not know that it has to enable
>> the usb_vbus regulator.
>>
>>
>> Regards,
>> Martin
>
> Hi.
> I tried several different options.
> The result is about the same.
>
>
> [    5.714478] tegra-ehci: Tegra EHCI driver
> [    5.718461] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [    5.724554] ohci-pci: OHCI PCI platform driver
> [    5.728986] ohci-platform: OHCI generic platform driver
> [    5.734256] ohci-omap3: OHCI OMAP3 driver
> [    5.738217] SPEAr-ohci: OHCI SPEAr driver
> [    5.742204] ohci-st: OHCI STMicroelectronics driver
> [    5.747077] ohci-atmel: OHCI Atmel driver
> [    5.751365] usbcore: registered new interface driver usb-storage
> [    5.759402] i2c /dev entries driver
> [    5.765797] meson_wdt c1109900.watchdog: Watchdog enabled (timeout=8 sec,
> nowayout=0)
> [    5.770002] sdhci: Secure Digital Host Controller Interface driver
> [    5.774398] sdhci: Copyright(c) Pierre Ossman
> [    5.779584] Synopsys Designware Multimedia Card Interface Driver
> [    5.786645] sdhci-pltfm: SDHCI platform and OF driver helper
> [    5.791544] of_pwm_get(): PWM chip not found
> [    5.794619] leds_pwm pwmleds: unable to request PWM for m8s:blue:power:
> -517
> [    5.801821] ledtrig-cpu: registered to indicate activity on CPUs
> [    5.807847] usbcore: registered new interface driver usbhid
> [    5.813133] usbhid: USB HID core driver
> [    5.874177] NET: Registered protocol family 10
> [    5.874892] Segment Routing with IPv6
> [    5.876682] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
> [    5.883038] NET: Registered protocol family 17
> [    5.886958] can: controller area network core (rev 20120528 abi 9)
> [    5.893167] NET: Registered protocol family 29
> [    5.897529] can: raw protocol (rev 20120528)
> [    5.901775] can: broadcast manager protocol (rev 20161123 t)
> [    5.907424] can: netlink gateway (rev 20130117) max_hops=1
> [    5.913163] Key type dns_resolver registered
> [    5.917401] ThumbEE CPU extension supported.
> [    5.921369] Registering SWP/SWPB emulation handler
> [    5.927806] Btrfs loaded, crc32c=crc32c-generic
> [    5.935944] dwc2 c9040000.usb: c9040000.usb supply vusb_d not found,
> using dummy regulator
> [    5.938931] dwc2 c9040000.usb: c9040000.usb supply vusb_a not found,
> using dummy regulator
> [    5.948296] phy phy-c1108800.phy.0: USB ID detect failed!
> [    5.952506] phy phy-c1108800.phy.0: phy poweron failed --> -22
> [    5.958424] dwc2: probe of c9040000.usb failed with error -22
> [    5.965482] dwc2 c90c0000.usb: c90c0000.usb supply vusb_d not found,
> using dummy regulator
> [    5.972288] dwc2 c90c0000.usb: c90c0000.usb supply vusb_a not found,
> using dummy regulator
> [    6.112633] dwc2 c90c0000.usb: DWC OTG Controller
> [    6.112703] dwc2 c90c0000.usb: new USB bus registered, assigned bus
> number 1
> [    6.118756] dwc2 c90c0000.usb: irq 23, io mem 0xc90c0000
> [    6.124706] hub 1-0:1.0: USB hub found
> [    6.127775] hub 1-0:1.0: 1 port detected
> [    6.136994] of_pwm_get(): PWM chip not found
> [    6.137048] leds_pwm pwmleds: unable to request PWM for m8s:blue:power:
> -517
> [    6.143362] hctosys: unable to open rtc device (rtc0)
> [    6.148218] VCC3V3: disabling
> [    6.150894] USB0_VBUS: disabling
> [    6.156075] Freeing unused kernel memory: 2048K
> [    6.552575] usb 1-1: new high-speed USB device number 2 using dwc2
> [    6.762552] usb 1-1: device descriptor read/64, error -32
> [    7.092974] usb 1-1: device descriptor read/64, error -32
> [    7.422513] usb 1-1: new high-speed USB device number 3 using dwc2
> [    7.632505] usb 1-1: device descriptor read/64, error -32
> [    7.962503] usb 1-1: device descriptor read/64, error -32
> [    8.292515] usb 1-1: new high-speed USB device number 4 using dwc2
> [    8.732504] usb 1-1: device not accepting address 4, error -32
> [    8.942503] usb 1-1: new high-speed USB device number 5 using dwc2
> [    9.382504] usb 1-1: device not accepting address 5, error -32
> [    9.382735] usb usb1-port1: unable to enumerate USB device
> [  133.322520] random: crng init done
can you please boot the Android system that came with the device and
get a copy of:
- dmesg output
- /sys/kernel/debug/gpio
- /proc/interrupts
- /proc/iomem

> I tried to run the image without a INITRD. Got a kernel panic.
>
>
>     5.587299] ThumbEE CPU extension supported.
> [    5.591346] Registering SWP/SWPB emulation handler
> [    5.597785] Btrfs loaded, crc32c=crc32c-generic
> [    5.605922] dwc2 c9040000.usb: c9040000.usb supply vusb_d not found,
> using dummy regulator
> [    5.608891] dwc2 c9040000.usb: c9040000.usb supply vusb_a not found,
> using dummy regulator
> [    5.618271] phy phy-c1108800.phy.0: USB ID detect failed!
> [    5.622465] phy phy-c1108800.phy.0: phy poweron failed --> -22
> [    5.628412] dwc2: probe of c9040000.usb failed with error -22
> [    5.635451] dwc2 c90c0000.usb: c90c0000.usb supply vusb_d not found,
> using dummy regulator
> [    5.642271] dwc2 c90c0000.usb: c90c0000.usb supply vusb_a not found,
> using dummy regulator
> [    5.782627] dwc2 c90c0000.usb: DWC OTG Controller
> [    5.782696] dwc2 c90c0000.usb: new USB bus registered, assigned bus
> number 1
> [    5.788748] dwc2 c90c0000.usb: irq 23, io mem 0xc90c0000
> [    5.794694] hub 1-0:1.0: USB hub found
> [    5.797768] hub 1-0:1.0: 1 port detected
> [    5.806231] hctosys: unable to open rtc device (rtc0)
> [    5.806943] VCC3V3: disabling
> [    5.809619] USB0_VBUS: disabling
> [    5.813139] VFS: Cannot open root device "LABEL=ROOTFS" or
> unknown-block(0,0): error -6
> [    5.820800] Please append a correct "root=" boot option; here are the
> available partitions:
> [    5.829154] 0100           65536 ram0
> [    5.829157]  (driver?)
> [    5.835194] 0101           65536 ram1
> [    5.835197]  (driver?)
> [    5.841260] 0102           65536 ram2
> [    5.841262]  (driver?)
> [    5.847328] 0103           65536 ram3
> [    5.847330]  (driver?)
> [    5.853404] 0104           65536 ram4
> [    5.853407]  (driver?)
> [    5.859463] 0105           65536 ram5
> [    5.859465]  (driver?)
> [    5.865530] 0106           65536 ram6
> [    5.865533]  (driver?)
> [    5.871598] 0107           65536 ram7
> [    5.871600]  (driver?)
> [    5.877666] 0108           65536 ram8
> [    5.877669]  (driver?)
> [    5.883742] 0109           65536 ram9
> [    5.883744]  (driver?)
> [    5.889802] 010a           65536 ram10
> [    5.889804]  (driver?)
> [    5.895956] 010b           65536 ram11
> [    5.895959]  (driver?)
> [    5.902110] 010c           65536 ram12
> [    5.902113]  (driver?)
> [    5.908265] 010d           65536 ram13
> [    5.908268]  (driver?)
> [    5.914427] 010e           65536 ram14
> [    5.914430]  (driver?)
> [    5.920574] 010f           65536 ram15
> [    5.920576]  (driver?)
> [    5.926735] Kernel panic - not syncing: VFS: Unable to mount root fs on
> unknown-block(0,0)
> [    5.934965] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.11.0+ #6
> [    5.940941] Hardware name: Amlogic Meson platform
> [    5.945644] [<c03105b8>] (unwind_backtrace) from [<c030bb10>]
> (show_stack+0x10/0x14)
> [    5.953346] [<c030bb10>] (show_stack) from [<c07f562c>]
> (dump_stack+0x88/0x9c)
> [    5.960542] [<c07f562c>] (dump_stack) from [<c03d3c28>]
> (panic+0xdc/0x268)
> [    5.967392] [<c03d3c28>] (panic) from [<c1401218>]
> (mount_block_root+0x198/0x270)
> [    5.974842] [<c1401218>] (mount_block_root) from [<c1401500>]
> (mount_root+0x124/0x12c)
> [    5.982729] [<c1401500>] (mount_root) from [<c1401684>]
> (prepare_namespace+0x17c/0x1c4)
> [    5.990704] [<c1401684>] (prepare_namespace) from [<c1400e50>]
> (kernel_init_freeable+0x1dc/0x1ec)
> [    5.999548] [<c1400e50>] (kernel_init_freeable) from [<c0e80254>]
> (kernel_init+0x8/0x110)
> [    6.007697] [<c0e80254>] (kernel_init) from [<c0307db8>]
> (ret_from_fork+0x14/0x3c)
> [    6.015242] ---[ end Kernel panic - not syncing: VFS: Unable to mount
> root fs on unknown-block(0,0)
>
>
>
> I have a suggestion that the reason for the stop run mine the not correct
> Assembly of the image.
> I can see the log of system start-up do You have ?
> What image are You using ?
I'm using an initrd from Arch Linux ARM (from their ARMv7 multi-platform image).
however, I found another missing kernel config option yesterday: you
also need to enable CONFIG_COMMON_CLK_PWM
once you enable that you should be able to see /dev/mmcblk1p[0-9] with
all the partitions from your SD card

I was also able to reproduce the kernel crash you reported last week.
it seems to go away when enabling CONFIG_DEBUG_SPINLOCK in the kernel
config - but I will create a separate thread about this (as I suspect
that there may be some memory corruption along with a race condition
somewhere)


Regards,
Martin

S805/S812 Device Tree upstreaming (was: Testing.)

[Oleg]

> get a copy of:
> - dmesg output
> - /sys/kernel/debug/gpio
> - /proc/interrupts
> - /proc/iomem

I received the necessary data from LebreELEC (this system now I have eMMC).
Let me know if you need to receive this data always from Android.

https://yadi.sk/d/deis2Z023JAiyE

>
> I'm using an initrd from Arch Linux ARM (from their ARMv7 multi-platform image).
> however, I found another missing kernel config option yesterday: you
> also need to enable CONFIG_COMMON_CLK_PWM
> once you enable that you should be able to see /dev/mmcblk1p[0-9] with
> all the partitions from your SD card
>
> I was also able to reproduce the kernel crash you reported last week.
> it seems to go away when enabling CONFIG_DEBUG_SPINLOCK in the kernel
> config - but I will create a separate thread about this (as I suspect
> that there may be some memory corruption along with a race condition
> somewhere)
>
>
> Regards,
> Martin
Hi Martin

Good news. Using the sources Your latest kernel (20170513) and amendments
in the config of the kernel I was able to run on Tronsmart MXIII Plus 
(s812).
By the way, in the source for Your kernel I had to make one small change 
to comment
out the in /arch/arm/mach-meson/Makefile a build of platsmp.
Thanks for the support. Now I have the ability
to run basic system on the device and test will be easier.

S805/S812 Device Tree upstreaming (was: Testing.)

[Oleg]

Log system start-up.

https://yadi.sk/i/0kvkEnct3JB7QZ

S805/S812 Device Tree upstreaming (was: Testing.)

[Martin Blumenstingl]

Hi Oleg,

On Mon, May 15, 2017 at 4:45 PM, Oleg <balbes-150@yandex.ru> wrote:
> Log system start-up.
>
> https://yadi.sk/i/0kvkEnct3JB7QZ
this looks pretty good - the SD card is found!

have you tried enabling the brcmfmac driver (CONFIG_BRCMFMAC and
CONFIG_BRCMFMAC_SDIO) to see whether your wireless chip is detected as
well?
testing if wifi works would help me a lot, since my board comes with a
RTL8723BS wifi chip and I couldn't get it working on first try (but I
don't trust the driver there, while I know that the brcmfmac driver
works fine based on my experience with other boards)

S805/S812 Device Tree upstreaming (was: Testing.)

[Oleg]

> this looks pretty good - the SD card is found!
>
> have you tried enabling the brcmfmac driver (CONFIG_BRCMFMAC and
> CONFIG_BRCMFMAC_SDIO) to see whether your wireless chip is detected as
> well?
> testing if wifi works would help me a lot, since my board comes with a
> RTL8723BS wifi chip and I couldn't get it working on first try (but I
> don't trust the driver there, while I know that the brcmfmac driver
> works fine based on my experience with other boards)
Hi Martin

I added modules to the kernel. Put together a new way s812_wifi.txt.
The result of loading the modules in the application.
I guess I need to add settings in the DTB file ?

https://mega.nz/#F!yw5kVCrR!zNvlE8f6bcpOR2XZbJdCog

S805/S812 Device Tree upstreaming (was: Testing.)

[Martin Blumenstingl]

Hi Oleg,

On Tue, May 16, 2017 at 11:05 AM, Oleg <balbes-150@yandex.ru> wrote:
>
>> this looks pretty good - the SD card is found!
>>
>> have you tried enabling the brcmfmac driver (CONFIG_BRCMFMAC and
>> CONFIG_BRCMFMAC_SDIO) to see whether your wireless chip is detected as
>> well?
>> testing if wifi works would help me a lot, since my board comes with a
>> RTL8723BS wifi chip and I couldn't get it working on first try (but I
>> don't trust the driver there, while I know that the brcmfmac driver
>> works fine based on my experience with other boards)
>
> Hi Martin
>
> I added modules to the kernel. Put together a new way s812_wifi.txt.
> The result of loading the modules in the application.
> I guess I need to add settings in the DTB file ?
>
> https://mega.nz/#F!yw5kVCrR!zNvlE8f6bcpOR2XZbJdCog
thanks for that - along with your dmesg output from the vendor kernel
this gives us some more details

your dmesg indicates that SDIO port/slot 0 is used for the wifi chip,
see all these aml_sdio_print_err messages with "pdata->port=0"
it also confirms that GPIOAO_6 and GPIOX_11 are used to power on the
wifi chip and that GPIOX_10 is used as pin for the LPO (32.768 kHz)
clock

unfortunately the kernel log when booting my kernel does not show
anything about the wifi chip.
I would have either expected error messages from mmc0 or a short
message that the device was detected.
can you please show me the output of /sys/kernel/debug/mmc[0-2]/* with
my kernel and the original Android/LibreELEC kernel?

regarding your USB problem: unfortunately there doesn't seem to be
anything relevant in the Android/LibreELEC kernel logs.
can you please provide a patch with the .dts changes you made so I can
have a look at these (maybe there's a typo somewhere)?


Regards,
Martin

Testing.

[Oleg]

Hi
I want to help the platform support Amlogic (S8xx\S9xxx) on the new kernel.
I have a few different model boards with the Amlogic S8xx\S9xxx with a 
connected console UART \ SSH.
I can help with testing variants of the kernel on these boards.
In what form can I help the project ?

Excuse my English, I use computer translation.

Testing.

[Martin Blumenstingl]

Hi Oleg,

On Tue, May 2, 2017 at 8:37 AM, Oleg <balbes-150@yandex.ru> wrote:
> Hi
> I want to help the platform support Amlogic (S8xx\S9xxx) on the new kernel.
> I have a few different model boards with the Amlogic S8xx\S9xxx with a
> connected console UART \ SSH.
> I can help with testing variants of the kernel on these boards.
> In what form can I help the project ?
I am currently trying to improve support for the older (32-bit) Meson SoCs.
Unfortunately I only have a device with S812 (Meson8m2) - do you have
any boards with Meson8 (S802) or Meson8b (S805) SoC? we could team up
and add mainline support for your boards

current status on my Meson8m2 device is:
- USB works (I only tested host mode)
- SD card can be read and written
- ethernet (my device has 10/100Mbit/s only) works


Regards,
Martin

Testing.

[Oleg]

> On Tue, May 2, 2017 at 8:37 AM, Oleg <balbes-150@yandex.ru> wrote:
>> Hi
>> I want to help the platform support Amlogic (S8xx\S9xxx) on the new kernel.
>> I have a few different model boards with the Amlogic S8xx\S9xxx with a
>> connected console UART \ SSH.
>> I can help with testing variants of the kernel on these boards.
>> In what form can I help the project ?
> I am currently trying to improve support for the older (32-bit) Meson SoCs.
> Unfortunately I only have a device with S812 (Meson8m2) - do you have
> any boards with Meson8 (S802) or Meson8b (S805) SoC? we could team up
> and add mainline support for your boards
>
> current status on my Meson8m2 device is:
> - USB works (I only tested host mode)
> - SD card can be read and written
> - ethernet (my device has 10/100Mbit/s only) works
>
>
> Regards,
> Martin
Hi Martin.

I have a TV box S812 MXIII_Plus (2\16 eMMC), and the 2 model S805 (1\8 
NAND). I know there are several users with different models s802 s805 
s812 who are willing to participate in testing. Today I tried to use 
Your kernel (branch meson-mx integration-4.12-20170506-5) to build a 
test image Armbian (Ubuntu server). The kernel runs, but the system 
fully not starts, stops without error message. I think this is due to 
the fact that I use dtb data that is not priznachena for my model s812. 
I have asked members from the forum Armbian check out this image 
(kernel) on different models s8xxx. I hope that in a short time, you 
should see information from other users about how to start Your kernel 
on different models s8xxx. Soon I'll try to check - another of my 
existing models s805 and will report the results. You can write, and 
what else to check.

https://forum.armbian.com/index.php?/topic/3023-armbian-for-amlogic-s802s812/&do=findComment&comment=31246 

Testing.

[Martin Blumenstingl]

Hi Oleg,

On Sun, May 7, 2017 at 7:36 PM, Oleg <balbes-150@yandex.ru> wrote:
>
>> On Tue, May 2, 2017 at 8:37 AM, Oleg <balbes-150@yandex.ru> wrote:
>>>
>>> Hi
>>> I want to help the platform support Amlogic (S8xx\S9xxx) on the new
>>> kernel.
>>> I have a few different model boards with the Amlogic S8xx\S9xxx with a
>>> connected console UART \ SSH.
>>> I can help with testing variants of the kernel on these boards.
>>> In what form can I help the project ?
>>
>> I am currently trying to improve support for the older (32-bit) Meson
>> SoCs.
>> Unfortunately I only have a device with S812 (Meson8m2) - do you have
>> any boards with Meson8 (S802) or Meson8b (S805) SoC? we could team up
>> and add mainline support for your boards
>>
>> current status on my Meson8m2 device is:
>> - USB works (I only tested host mode)
>> - SD card can be read and written
>> - ethernet (my device has 10/100Mbit/s only) works
>>
>>
>> Regards,
>> Martin
>
> Hi Martin.
>
> I have a TV box S812 MXIII_Plus (2\16 eMMC), and the 2 model S805 (1\8
> NAND). I know there are several users with different models s802 s805 s812
> who are willing to participate in testing. Today I tried to use Your kernel
> (branch meson-mx integration-4.12-20170506-5) to build a test image Armbian
> (Ubuntu server). The kernel runs, but the system fully not starts, stops
> without error message. I think this is due to the fact that I use dtb data
> that is not priznachena for my model s812.
is the .dtb (or .dts) of your device available in your github repo [0]?
also please note that you need to change the bootargs in u-boot before
you can boot a mainline kernel (see also [1]): setenv bootargs
"console=ttyAML0,115200" (without this your serial console won't work)


Regards,
Martin

[0] https://github.com/150balbes/Amlogic_s905
[1] http://linux-meson.com/doku.php?id=start#bit_socs_meson8b_s805_or_older

Testing.

[Martin Blumenstingl]

Hi Oleg,

On Sun, May 7, 2017 at 8:36 PM, Oleg <balbes-150@yandex.ru> wrote:
>
> Hi Oleg,
>
> On Sun, May 7, 2017 at 7:36 PM, Oleg <balbes-150@yandex.ru> wrote:
>
> On Tue, May 2, 2017 at 8:37 AM, Oleg <balbes-150@yandex.ru> wrote:
>
> Hi
> I want to help the platform support Amlogic (S8xx\S9xxx) on the new
> kernel.
> I have a few different model boards with the Amlogic S8xx\S9xxx with a
> connected console UART \ SSH.
> I can help with testing variants of the kernel on these boards.
> In what form can I help the project ?
>
> I am currently trying to improve support for the older (32-bit) Meson
> SoCs.
> Unfortunately I only have a device with S812 (Meson8m2) - do you have
> any boards with Meson8 (S802) or Meson8b (S805) SoC? we could team up
> and add mainline support for your boards
>
> current status on my Meson8m2 device is:
> - USB works (I only tested host mode)
> - SD card can be read and written
> - ethernet (my device has 10/100Mbit/s only) works
>
>
> Regards,
> Martin
>
> Hi Martin.
>
> I have a TV box S812 MXIII_Plus (2\16 eMMC), and the 2 model S805 (1\8
> NAND). I know there are several users with different models s802 s805 s812
> who are willing to participate in testing. Today I tried to use Your kernel
> (branch meson-mx integration-4.12-20170506-5) to build a test image Armbian
> (Ubuntu server). The kernel runs, but the system fully not starts, stops
> without error message. I think this is due to the fact that I use dtb data
> that is not priznachena for my model s812.
>
> is the .dtb (or .dts) of your device available in your github repo [0]?
> also please note that you need to change the bootargs in u-boot before
> you can boot a mainline kernel (see also [1]): setenv bootargs
> "console=ttyAML0,115200" (without this your serial console won't work)
>
>
> Regards,
> Martin
>
> [0] https://github.com/150balbes/Amlogic_s905
> [1] http://linux-meson.com/doku.php?id=start#bit_socs_meson8b_s805_or_older
>
>
> I use the kernel 3.14.29 these dts .
> For my model s812
>
> meson8m2_n200_2G_1000.dts
>
> https://github.com/150balbes/Amlogic_s8xx-kernel/tree/S812/arch/arm/boot/dts
>
>
> and s805   2 models.
>
> meson8b_i5.dts
> meson8b_hd180.dts
>
> https://github.com/150balbes/Amlogic_s8xx-kernel/tree/S805/arch/arm/boot/dts
>
> This is the source test file, which is obtained when compiling the
> executable script s805_autoscript (used in multi-boot mode), which sets the
> required variables and performs the automatic startup of the system from
> removable media when testing. Internal firmware remains unchanged, this
> allows any non-trained user with no risk to test any system.
>
> boot-vegas812_AM.cmd
>
> https://github.com/150balbes/lib/tree/master/config/bootscripts
OK, I see - thanks for the details!

>
> Perhaps You will be more clear what is happening on the logs from the
> console UART while trying to start at s812 and s805.
OK, there are two different "problems", see below

> https://yadi.sk/i/rhJQe_qi3HpNQr
I forgot a patch which enables CONFIG_MMC_MESON_MX_SDIO on the
multi_v7_defconfig. I just pushed an update: [0] (but you can simply
enable that symbol in your .config - just make sure you set it to =y).
same with the USB2 PHY driver (CONFIG_PHY_MESON8B_USB2)

> https://yadi.sk/i/czHlGCyt3HpNQD
I only enabled SD/USB/etc. for the M8S board, so additional patches
are needed for other boards.

PS: I've just seen that you sent some mails as HTML-mails.
the mailing list rejects these - please always send plain-text mails!


Regards,
Martin


[0] https://github.com/xdarklight/linux/tree/meson-mx-integration-4.12-20170507

Testing.

[Oleg]

> I forgot a patch which enables CONFIG_MMC_MESON_MX_SDIO on the
> multi_v7_defconfig. I just pushed an update: [0] (but you can simply
> enable that symbol in your .config - just make sure you set it to =y).
> same with the USB2 PHY driver (CONFIG_PHY_MESON8B_USB2)
Thanks for the explanation, tomorrow I'll check it out on their models.
I apologize for the duplication.

Testing.

[Martin Blumenstingl]

On Sun, May 7, 2017 at 9:09 PM, Oleg <balbes-150@yandex.ru> wrote:
>
>
>> I forgot a patch which enables CONFIG_MMC_MESON_MX_SDIO on the
>> multi_v7_defconfig. I just pushed an update: [0] (but you can simply
>> enable that symbol in your .config - just make sure you set it to =y).
>> same with the USB2 PHY driver (CONFIG_PHY_MESON8B_USB2)
>
> Thanks for the explanation, tomorrow I'll check it out on their models.
perfect, thank you already for testing this!
please note that (typically) I have limited time during the week - so
I may not reply before next weekend

good luck with testing!


Regards,
Martin

Testing.

[Oleg]

> perfect, thank you already for testing this!
> please note that (typically) I have limited time during the week - so
> I may not reply before next weekend
>
> good luck with testing!
Assembled a new test image with the meson 
branch-mx-integration-4.12-20170507 ,
included in the config file the option CONFIG_MMC_MESON_MX_SDIO=y and 
CONFIG_PHY_MESON8B_USB2=y .
Tried to run from SD card new version, yet the result is the same as 
before. I do not consider ?
What compiler is better to use 4.9.4 or 6.3.1 ?

Testing.

[Martin Blumenstingl]

On Sun, May 7, 2017 at 10:44 PM, Oleg <balbes-150@yandex.ru> wrote:
>
>> perfect, thank you already for testing this!
>> please note that (typically) I have limited time during the week - so
>> I may not reply before next weekend
>>
>> good luck with testing!
>
> Assembled a new test image with the meson
> branch-mx-integration-4.12-20170507 ,
> included in the config file the option CONFIG_MMC_MESON_MX_SDIO=y and
> CONFIG_PHY_MESON8B_USB2=y .
> Tried to run from SD card new version, yet the result is the same as before.
so the kernel output is still the same? can you please share your .config then?

> What compiler is better to use 4.9.4 or 6.3.1 ?
personally I'm using arm-none-eabi-gcc 6.3.1 (from Arch Linux' community repo)

Testing.

[Oleg]

[    5.784393] tegra-ehci: Tegra EHCI driver
[    5.788381] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    5.794471] ohci-pci: OHCI PCI platform driver
[    5.798903] ohci-platform: OHCI generic platform driver
[    5.804174] ohci-omap3: OHCI OMAP3 driver
[    5.808132] SPEAr-ohci: OHCI SPEAr driver
[    5.812119] ohci-st: OHCI STMicroelectronics driver
[    5.816989] ohci-atmel: OHCI Atmel driver
[    5.821290] usbcore: registered new interface driver usb-storage
[    5.829289] i2c /dev entries driver
[    5.835640] meson_wdt c1109900.watchdog: Watchdog enabled (timeout=8 
sec, nowayout=0)
[    5.839928] sdhci: Secure Digital Host Controller Interface driver
[    5.844316] sdhci: Copyright(c) Pierre Ossman
[    5.849477] Synopsys Designware Multimedia Card Interface Driver
[    5.856562] sdhci-pltfm: SDHCI platform and OF driver helper
[    5.861442] of_pwm_get(): PWM chip not found
[    5.864538] leds_pwm pwmleds: unable to request PWM for 
m8s:blue:power: -517
[    5.871728] ledtrig-cpu: registered to indicate activity on CPUs
[    5.877766] usbcore: registered new interface driver usbhid
[    5.883048] usbhid: USB HID core driver
[    5.944209] NET: Registered protocol family 10
[    5.944923] Segment Routing with IPv6
[    5.946713] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[    5.953100] NET: Registered protocol family 17
[    5.956991] can: controller area network core (rev 20120528 abi 9)
[    5.963199] NET: Registered protocol family 29
[    5.967561] can: raw protocol (rev 20120528)
[    5.971808] can: broadcast manager protocol (rev 20161123 t)
[    5.977457] can: netlink gateway (rev 20130117) max_hops=1
[    5.983198] Key type dns_resolver registered
[    5.987424] ThumbEE CPU extension supported.
[    5.991403] Registering SWP/SWPB emulation handler
[    5.997855] Btrfs loaded, crc32c=crc32c-generic
[    6.005513] dwc2 c9040000.usb: c9040000.usb supply vusb_d not found, 
using dummy regulator
[    6.008952] dwc2 c9040000.usb: c9040000.usb supply vusb_a not found, 
using dummy regulator
[    6.018320] phy phy-c1108800.phy.0: USB ID detect failed!
[    6.022538] phy phy-c1108800.phy.0: phy poweron failed --> -22
[    6.028450] dwc2: probe of c9040000.usb failed with error -22
[    6.035485] dwc2 c90c0000.usb: c90c0000.usb supply vusb_d not found, 
using dummy regulator
[    6.042337] dwc2 c90c0000.usb: c90c0000.usb supply vusb_a not found, 
using dummy regulator
[    6.182662] dwc2 c90c0000.usb: DWC OTG Controller
[    6.182732] dwc2 c90c0000.usb: new USB bus registered, assigned bus 
number 1
[    6.188786] dwc2 c90c0000.usb: irq 23, io mem 0xc90c0000
[    6.194739] hub 1-0:1.0: USB hub found
[    6.197804] hub 1-0:1.0: 1 port detected
[    6.206952] of_pwm_get(): PWM chip not found
[    6.207005] leds_pwm pwmleds: unable to request PWM for 
m8s:blue:power: -517
[    6.213401] hctosys: unable to open rtc device (rtc0)
[    6.218262] VCC3V3: disabling
[    6.222866] Freeing unused kernel memory: 2048K
[    6.622590] usb 1-1: new high-speed USB device number 2 using dwc2
[    6.832594] usb 1-1: device descriptor read/64, error -32
[    7.162580] usb 1-1: device descriptor read/64, error -32
[    7.492542] usb 1-1: new high-speed USB device number 3 using dwc2
[    7.702535] usb 1-1: device descriptor read/64, error -32
[    8.032534] usb 1-1: device descriptor read/64, error -32
[    8.362547] usb 1-1: new high-speed USB device number 4 using dwc2
[    8.802534] usb 1-1: device not accepting address 4, error -32
[    9.012535] usb 1-1: new high-speed USB device number 5 using dwc2
[    9.452534] usb 1-1: device not accepting address 5, error -32
[    9.452767] usb usb1-port1: unable to enumerate USB device
[  133.312550] random: crng init done

Testing.

[Martin Blumenstingl]

On Sun, May 7, 2017 at 10:57 PM, Oleg <balbes-150@yandex.ru> wrote:
> [    5.784393] tegra-ehci: Tegra EHCI driver
> [    5.788381] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [    5.794471] ohci-pci: OHCI PCI platform driver
> [    5.798903] ohci-platform: OHCI generic platform driver
> [    5.804174] ohci-omap3: OHCI OMAP3 driver
> [    5.808132] SPEAr-ohci: OHCI SPEAr driver
> [    5.812119] ohci-st: OHCI STMicroelectronics driver
> [    5.816989] ohci-atmel: OHCI Atmel driver
> [    5.821290] usbcore: registered new interface driver usb-storage
> [    5.829289] i2c /dev entries driver
> [    5.835640] meson_wdt c1109900.watchdog: Watchdog enabled (timeout=8 sec,
> nowayout=0)
> [    5.839928] sdhci: Secure Digital Host Controller Interface driver
> [    5.844316] sdhci: Copyright(c) Pierre Ossman
> [    5.849477] Synopsys Designware Multimedia Card Interface Driver
> [    5.856562] sdhci-pltfm: SDHCI platform and OF driver helper
> [    5.861442] of_pwm_get(): PWM chip not found
> [    5.864538] leds_pwm pwmleds: unable to request PWM for m8s:blue:power:
> -517
> [    5.871728] ledtrig-cpu: registered to indicate activity on CPUs
> [    5.877766] usbcore: registered new interface driver usbhid
> [    5.883048] usbhid: USB HID core driver
> [    5.944209] NET: Registered protocol family 10
> [    5.944923] Segment Routing with IPv6
> [    5.946713] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
> [    5.953100] NET: Registered protocol family 17
> [    5.956991] can: controller area network core (rev 20120528 abi 9)
> [    5.963199] NET: Registered protocol family 29
> [    5.967561] can: raw protocol (rev 20120528)
> [    5.971808] can: broadcast manager protocol (rev 20161123 t)
> [    5.977457] can: netlink gateway (rev 20130117) max_hops=1
> [    5.983198] Key type dns_resolver registered
> [    5.987424] ThumbEE CPU extension supported.
> [    5.991403] Registering SWP/SWPB emulation handler
> [    5.997855] Btrfs loaded, crc32c=crc32c-generic
> [    6.005513] dwc2 c9040000.usb: c9040000.usb supply vusb_d not found,
> using dummy regulator
> [    6.008952] dwc2 c9040000.usb: c9040000.usb supply vusb_a not found,
> using dummy regulator
> [    6.018320] phy phy-c1108800.phy.0: USB ID detect failed!
> [    6.022538] phy phy-c1108800.phy.0: phy poweron failed --> -22
> [    6.028450] dwc2: probe of c9040000.usb failed with error -22
I assume your device has an internal USB hub? this probably has to be
turned on before the controller starts working

> [    6.035485] dwc2 c90c0000.usb: c90c0000.usb supply vusb_d not found,
> using dummy regulator
> [    6.042337] dwc2 c90c0000.usb: c90c0000.usb supply vusb_a not found,
> using dummy regulator
> [    6.182662] dwc2 c90c0000.usb: DWC OTG Controller
> [    6.182732] dwc2 c90c0000.usb: new USB bus registered, assigned bus
> number 1
> [    6.188786] dwc2 c90c0000.usb: irq 23, io mem 0xc90c0000
> [    6.194739] hub 1-0:1.0: USB hub found
> [    6.197804] hub 1-0:1.0: 1 port detected
> [    6.206952] of_pwm_get(): PWM chip not found
this sounds innocent at first but actually it's crucial for MMC (at
least in the current M8S configuration). PWM_E is used to generate the
32.768 kHz clock for the wifi chip. so without CONFIG_PWM_MESON the
pwm_ef node won't get probed, meaning that a dependency of the mmc
controller is missing.
I'll fix that as well next weekend (it also has to be enabled in
multi_v7_defconfig)

> [    6.207005] leds_pwm pwmleds: unable to request PWM for m8s:blue:power:
> -517
> [    6.213401] hctosys: unable to open rtc device (rtc0)
> [    6.218262] VCC3V3: disabling
> [    6.222866] Freeing unused kernel memory: 2048K
> [    6.622590] usb 1-1: new high-speed USB device number 2 using dwc2
> [    6.832594] usb 1-1: device descriptor read/64, error -32
> [    7.162580] usb 1-1: device descriptor read/64, error -32
> [    7.492542] usb 1-1: new high-speed USB device number 3 using dwc2
> [    7.702535] usb 1-1: device descriptor read/64, error -32
> [    8.032534] usb 1-1: device descriptor read/64, error -32
> [    8.362547] usb 1-1: new high-speed USB device number 4 using dwc2
> [    8.802534] usb 1-1: device not accepting address 4, error -32
> [    9.012535] usb 1-1: new high-speed USB device number 5 using dwc2
> [    9.452534] usb 1-1: device not accepting address 5, error -32
> [    9.452767] usb usb1-port1: unable to enumerate USB device
this looks suspicious, do you have anything connected to that port?
I've seen that when connecting a 2.5" HDD when the PSU doesn't have
enough power to spin up the HDD as well.


Martin

Testing.

[Oleg]

> this sounds innocent at first but actually it's crucial for MMC (at
> least in the current M8S configuration). PWM_E is used to generate the
> 32.768 kHz clock for the wifi chip. so without CONFIG_PWM_MESON the
> pwm_ef node won't get probed, meaning that a dependency of the mmc
> controller is missing.
> I'll fix that as well next weekend (it also has to be enabled in
> multi_v7_defconfig)
I found in the configuration CONFIG_PWM_MESON and put =y.
  Or you need to add code / patch in the source code ?

> this looks suspicious, do you have anything connected to that port?
> I've seen that when connecting a 2.5" HDD when the PSU doesn't have
> enough power to spin up the HDD as well.
This TV box have 2 USB port.
One port is connected to the external hub
(this hub connecned USB keyboard and mouse from PC).

Testing.

[Martin Blumenstingl]

On Sun, May 7, 2017 at 11:23 PM, Oleg <balbes-150@yandex.ru> wrote:
>
>> this sounds innocent at first but actually it's crucial for MMC (at
>> least in the current M8S configuration). PWM_E is used to generate the
>> 32.768 kHz clock for the wifi chip. so without CONFIG_PWM_MESON the
>> pwm_ef node won't get probed, meaning that a dependency of the mmc
>> controller is missing.
>> I'll fix that as well next weekend (it also has to be enabled in
>> multi_v7_defconfig)
>
> I found in the configuration CONFIG_PWM_MESON and put =y.
>  Or you need to add code / patch in the source code ?
adding the configuration should be enough - Neil did a good job with
the actual driver code (it's working fine for me :))

>> this looks suspicious, do you have anything connected to that port?
>> I've seen that when connecting a 2.5" HDD when the PSU doesn't have
>> enough power to spin up the HDD as well.
>
> This TV box have 2 USB port.
> One port is connected to the external hub
> (this hub connecned USB keyboard and mouse from PC).
I am assuming you are testing on the MXIII Plus [0]:
the S812 SoC (just like all other Amlogic SoCs) comes with two USB controllers:
- one for the OTG port
- a second one which only acts in host mode -> this is typically
connected to an internal hub (often through a GL852 USB hub
controller) which then provides more than one port

I had a quick look at the .dts files - on my Akaso M8S GPIOZ_1 is not
connected anywhere (at least toggling the GPIO doesn't change anything
in terms of USB VBUS signal).
however, your board has: gpio-vbus-power = "GPIOZ_1";
it's very likely that the GL852 hub is powered off by default and is
powered on by enabling GPIOZ_1
but since my .dts is not enabling GPIOZ_1 the hub stays powered off
and USB is not working for you
(in other words: this will require additional changes in the .dts to
make it work)


Regards,
Martin

[0] http://www.tronsmart.com/products/tronsmart-mxiii-plus-2g/8g-quad-core-android-tv-box

Testing.

[Oleg]

> adding the configuration should be enough - Neil did a good job with
> the actual driver code (it's working fine for me :))
I added to config this variable. This kernel changed the behavior.
Now there is a reaction to change :)

https://yadi.sk/i/rzF14Hx03HqeRh

> I had a quick look at the .dts files - on my Akaso M8S GPIOZ_1 is not
> connected anywhere (at least toggling the GPIO doesn't change anything
> in terms of USB VBUS signal).
> however, your board has: gpio-vbus-power = "GPIOZ_1";
> it's very likely that the GL852 hub is powered off by default and is
> powered on by enabling GPIOZ_1
> but since my .dts is not enabling GPIOZ_1 the hub stays powered off
> and USB is not working for you
> (in other words: this will require additional changes in the .dts to
> make it work)
I found dtb to kernel 3.14 the string

gpio-vbus-power = "GPIOZ_1";

You can simply copy it to the unit or it needs to change according to 
certain rules ?

&usb0 {
     status = "okay";
};

S805/S812 Device Tree upstreaming (was: Testing.)

[Andreas Färber]

Hi,

Am 08.05.2017 um 11:42 schrieb Oleg:
>> I had a quick look at the .dts files - on my Akaso M8S GPIOZ_1 is not
>> connected anywhere (at least toggling the GPIO doesn't change anything
>> in terms of USB VBUS signal).
>> however, your board has: gpio-vbus-power = "GPIOZ_1";
>> it's very likely that the GL852 hub is powered off by default and is
>> powered on by enabling GPIOZ_1
>> but since my .dts is not enabling GPIOZ_1 the hub stays powered off
>> and USB is not working for you
>> (in other words: this will require additional changes in the .dts to
>> make it work)
> I found dtb to kernel 3.14 the string
> 
> gpio-vbus-power = "GPIOZ_1";
> 
> You can simply copy it to the unit or it needs to change according to
> certain rules ?

You need to read the latest bindings documentation, for example:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings

Regards,
Andreas

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