[U-Boot] [PATCH] arm: sunxi: initial support for NanoPi Neo2

[Andreas Färber]

Hej Patrick,

Am 09.05.2017 um 14:43 schrieb Patrick Wildt:
> The NanoPi Neo2 is basically the same as the NanoPi Neo, but that they
> replaced the SoC with the 64-bit Allwinner H5 SoC.  Add a (64-bit only)
> defconfig defining the required options to build the U-Boot proper.
> 
> Create a new .dts file for it by including the (32-bit) H3 SoC .dtsi
> and changing the differing components accordingly, like it's been
> done for the OrangePi PC 2.
> 
> Signed-off-by: Patrick Wildt <patrick at blueri.se>

I've tested this patch on top of yesterday's master branch
(4c78028737c3185f49f5691183aeac3478b5f699 "mksunxi_fit_atf.sh: Allow for
this to complete when bl31.bin is missing").

Considering Tom's unanswered question, is there any diff to the upstream
kernel .dts? Expected would be to just copy the Linux .dts file here and
to state which tree and commit/tag it was taken from.

Using this dtb here via UEFI distro boot, my openSUSE kernel image that
booted okay on orangepi_pc2 fails to find the MMC devices on Neo2,
although it obviously succeeded to boot from SD in U-Boot and GRUB...

Also, if I "reset" from the downstream or patched mainline U-Boot
prompt, SPL gets stuck:

=> reset
resetting ...
INFO:    PSCI Affinity Map:
INFO:      AffInst: Level 0, MPID 0x0, State ON
INFO:      AffInst: Level 0, MPID 0x1, State OFF
INFO:      AffInst: Level 0, MPID 0x2, State OFF
INFO:      AffInst: Level 0, MPID 0x3, State OFF

U-Boot SPL 2017.05-00660-g4bffee2792 (May 24 2017 - 00:43:24)
DRAM: 512 MiB
Trying to boot from MMC1


If instead I unpower it (by plugging Micro USB), it boots okay:

U-Boot SPL 2017.05-00660-g4bffee2792 (May 24 2017 - 00:43:24)
DRAM: 512 MiB
Trying to boot from MMC1
NOTICE:  BL3-1: Running in SRAM A2 (@0x44000)
NOTICE:  Configuring SPC Controller
NOTICE:  BL3-1: v1.0(debug):1.0~20160809T000419~45ab97e
NOTICE:  BL3-1: Built : 01:01:56, Nov 15 2016
NOTICE:  Configuring AXP PMIC
ERROR:   set run-time address: 0x0
ERROR:   PMIC: unknown PMIC type number 0x0
ERROR:   Could not connect to AXP PMIC.
INFO:    BL3-1: Initializing runtime services
INFO:    BL3-1: Preparing for EL3 exit to normal world
INFO:    BL3-1: Next image address: 0x4a000000, SPSR: 0x3c9


U-Boot 2017.05-00660-g4bffee2792 (May 24 2017 - 00:43:24 +0200)
Allwinner Technology

CPU:   Allwinner H5 (SUN50I)
Model: FriendlyARM NanoPi NEO2
DRAM:  512 MiB
MMC:   SUNXI SD/MMC: 0
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   No ethernet found.
starting USB...
USB0:   USB EHCI 1.00
USB1:   USB OHCI 1.0
scanning bus 0 for devices... 1 USB Device(s) found
       scanning usb for storage devices... 0 Storage Device(s) found
Hit any key to stop autoboot:  0


Andre, is this reset problem maybe an ATF issue?

Regards,
Andreas

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