[U-Boot] [U-boot] Odroidxu3/4 -s2mps11 bind pmic failed

Wed Jan 3 04:32:08 UTC 2018

Hi Lukasz

On 3 January 2018 at 03:47, Lukasz Majewski <lukma at denx.de> wrote:
> On Wed, 3 Jan 2018 01:54:57 +0530
> Anand Moon <linux.amoon at gmail.com> wrote:
>
>> Hi All,
>>
>> I would like to get the s2mps11 regulator binding for u-boot to work
>> on Odroid XU3/XU4
>> as in case of Odroid U3 we have max77686_bind function which dose the
>> job.
>>
>> what will be the correct way to reset s2mps11 control register to the
>> default values
>> in-order to support reset of some regulators.
>>
>> Below is the command I tried to gather some information but it failed.
>>
>> Best Regards
>> -Anand Moon
>> -----------------------------------------------------------------------------------------------------------------------------------------
>> U-Boot 2018.01-rc3-00060-g1314bd1 (Jan 02 2018 - 17:56:26 +0000) for
>> ODROID-XU3/XU4/HC1
>>
>> CPU:   Exynos5422 @ 800 MHz
>> Model: Odroid XU3 based on EXYNOS5422
>> Board: Odroid XU3 based on EXYNOS5422
>> Type:  xu4
>> DRAM:  2 GiB
>> MMC:   EXYNOS DWMMC: 0, EXYNOS DWMMC: 1
>> *** Warning - bad CRC, using default environment
>>
>> In:    serial
>> Out:   serial
>> Err:   serial
>> Net:   No ethernet found.
>> Hit any key to stop autoboot:  0
>> Card did not respond to voltage select!
>> mmc_init: -95, time 11
>> switch to partitions #0, OK
>> mmc0 is current device
>> Scanning mmc 0:1...
>> reading /exynos5422-odroidxu4.dtb
>> 62815 bytes read in 9 ms (6.7 MiB/s)
>> starting USB...
>> USB0:   USB EHCI 1.00
>> USB1:   Register 2000140 NbrPorts 2
>> Starting the controller
>> USB XHCI 1.00
>> USB2:   Register 2000140 NbrPorts 2
>> Starting the controller
>> USB XHCI 1.00
>> scanning bus 0 for devices... 1 USB Device(s) found
>> scanning bus 1 for devices... 3 USB Device(s) found
>> scanning bus 2 for devices... 2 USB Device(s) found
>>        scanning usb for storage devices... 0 Storage Device(s) found
>>        scanning usb for ethernet devices... 1 Ethernet Device(s) found
>> Waiting for Ethernet connection... done.
>> BOOTP broadcast 1
>> BOOTP broadcast 2
>> DHCP client bound to address 10.0.0.144 (1200 ms)
>> *** Warning: no boot file name; using '0A000090.img'
>> Using r8152#0 device
>> TFTP from server 0.0.0.0; our IP address is 10.0.0.144; sending
>> through gateway 10.0.0.1
>> Filename '0A000090.img'.
>> Load address: 0x43e00000
>> Loading: *
>> TFTP error: 'File not found' (1)
>> Not retrying...
>> missing environment variable: pxeuuid
>> missing environment variable: bootfile
>> Retrieving file: pxelinux.cfg/0A000090
>> *** ERROR: `serverip' not set
>> missing environment variable: bootfile
>> Retrieving file: pxelinux.cfg/0A00009
>> *** ERROR: `serverip' not set
>> missing environment variable: bootfile
>> Retrieving file: pxelinux.cfg/0A0000
>> *** ERROR: `serverip' not set
>> missing environment variable: bootfile
>> Retrieving file: pxelinux.cfg/0A000
>> *** ERROR: `serverip' not set
>> missing environment variable: bootfile
>> Retrieving file: pxelinux.cfg/0A00
>> *** ERROR: `serverip' not set
>> missing environment variable: bootfile
>> Retrieving file: pxelinux.cfg/0A0
>> *** ERROR: `serverip' not set
>> missing environment variable: bootfile
>> Retrieving file: pxelinux.cfg/0A
>> *** ERROR: `serverip' not set
>> missing environment variable: bootfile
>> Retrieving file: pxelinux.cfg/0
>> *** ERROR: `serverip' not set
>> missing environment variable: bootfile
>> Retrieving file: pxelinux.cfg/default-arm-exynos
>> *** ERROR: `serverip' not set
>> missing environment variable: bootfile
>> Retrieving file: pxelinux.cfg/default-arm
>> *** ERROR: `serverip' not set
>> missing environment variable: bootfile
>> Retrieving file: pxelinux.cfg/default
>> *** ERROR: `serverip' not set
>> Config file not found
>> BOOTP broadcast 1
>> DHCP client bound to address 10.0.0.144 (644 ms)
>> Using r8152#0 device
>> TFTP from server 0.0.0.0; our IP address is 10.0.0.144; sending
>> through gateway 10.0.0.1
>> Filename 'boot.scr.uimg'.
>> Load address: 0x50000000
>> Loading: *
>> TFTP error: 'File not found' (1)
>> Not retrying...
>> BOOTP broadcast 1
>> BOOTP broadcast 2
>> DHCP client bound to address 10.0.0.144 (1257 ms)
>> Using r8152#0 device
>> TFTP from server 0.0.0.0; our IP address is 10.0.0.144; sending
>> through gateway 10.0.0.1
>> Filename 'boot.scr.uimg'.
>> Load address: 0x42000000
>> Loading: *
>> TFTP error: 'File not found' (1)
>> Not retrying...
>> ODROID-XU3 #
>> ODROID-XU3 #
>> ODROID-XU3 # pmic s2mps11 dump
>> pmic -  operations
>>
>> Usage:
>> pmic list          - list pmic devices
>> pmic dev [name]    - show or [set] operating PMIC device
>> pmic dump          - dump registers
>> pmic read address  - read byte of register at address
>> pmic write address - write byte to register at address
>
> First try to:
>
> pmic list
> pmic dev s2mps11_pmic at 66
>
> pmic dump
> pmic write 0xXX for your device
>
>
[snip]

Thanks for your input.

ODROID-XU3 #
| Name                            | Parent name         | Parent uclass @ seq
| s2mps11_pmic at 66                 | i2c at 12CA0000        | i2c @ 4
ODROID-XU3 # pmic dev s2mps11_pmic at 66
dev: 0 @ s2mps11_pmic at 66
ODROID-XU3 # pmic dump
Dump pmic: s2mps11_pmic at 66 registers

0x00: 83 00 11 00 ff 3b 03 1a 00 00 04 01 10 00 00 57
0x10: 5f 55 ff ff ff ff ff 00 00 00 00 00 00 00 00 00
0x20: 00 50 12 ca dc d8 50 f8 40 f9 40 f8 40 fe 3f 60
0x30: 78 90 c0 d8 44 d8 30 d8 64 d9 50 d8 a8 c8 d4 14
0x40: d4 d4 c8 d4 d4 f2 d4 c8 d4 f2 2c f2 dc f2 14 f2
0x50: 14 14 10 cc e8 14 ec c8 f2 14 f2 14 14 14 2c 10
0x60: 14 14 28

Actually, I am looking into setting some of the s2mps11 control
register + reset clk values
during board initialization.

Hardkernel Exynos5422 u-boot:
[0] https://github.com/hardkernel/u-boot/blob/odroidxu3-v2012.07/board/samsung/smdk5422/pmic.c#L271-L329

Cromebok2 u-boot:
[1] https://github.com/archlinuxarm/u-boot-chromebook2/blob/chromebook2/board/samsung/common/board.c#L299-L314

Some of the feature dont work out on warm boot because of this missing feature.

Best Regards
-Anand Moon