[U-Boot] [PATCH v2 00/31] dm: tegra: Move nyan-big and beaver to livetree

[Marcel Ziswiler <marcel.ziswiler@toradex.com>]

Hi Simon

On Thu, 2017-06-08 at 22:04 -0600, Simon Glass wrote:
> Hi,
> 
> On 8 June 2017 at 21:06, Simon Glass <sjg@chromium.org> wrote:
> > Hi Tom (Warren) / Marcel,
> > 
> > On 2 June 2017 at 21:03, Simon Glass <sjg@chromium.org> wrote:
> > > 
> > > This moves an entire board to use a live device tree as an
> > > example of the
> > > impact.
> > > 
> > > Nyan-big was chosen because I can easily and boot U-Boot without
> > > any
> > > media swapping, etc. Beaver is enabled as well since it failed to
> > > boot
> > > with serial v1 due to a disabled console node.
> > > 
> > 
> > Have you been able to test this v2 series? Some problems were
> > reported
> > with v1 and I have found a few more since I discovered my jetson-
> > tk1
> > board. I'm planning to send a v3 soon, but please let me know if
> > you
> > see any issues.
> 
> One more note - I pushed a v3 series to u-boot-dm/livet-working but
> have not sent the patches. Let me know if you find anything.

While Apalis TK1 now at least boots without any GPIO driver issues I
still saw the following few glitches:

Apalis TK1 # gpio status -a
Bank A:
A0: func
A1: input: 1 [ ]
A2: func
...
FF7: func

Bank as3722_:
as3722_0: unknown
as3722_1: unknown
as3722_2: unknown
as3722_3: unknown
as3722_4: unknown
as3722_5: unknown
as3722_6: unknown
as3722_7: unknown

Apalis TK1 # mmc dev 0
tegra_mmc_send_cmd_bounced: MMC Timeout
    Interrupt status        0x00000001
    Interrupt status enable 0xffff003b
    Interrupt signal enable 0xffff0002
    Present status          0x01fb02f6
mmc_init: -1, time 8066

While PCIe enumeration does not error out it seems not to detect the
Ethernet chip:

Apalis TK1 # pci enum
Apalis TK1 # dm tree
 Class       Probed   Name
----------------------------------------
 root        [ + ]    root_driver
 pci         [ + ]    |-- pcie-controller at 01003000
...

That's how it should look (e.g. with older working U-Boot):

Apalis TK1 # ver

U-Boot 2016.11-2.7.2+g60021a4 (Apr 10 2017 - 07:55:49 +0200)
arm-angstrom-linux-gnueabi-gcc (Linaro GCC 6.2-2016.11) 6.2.1 20161016
GNU ld (GNU Binutils) 2.27.0.20160806
Apalis TK1 # pci enum
Apalis TK1 # dm tree
 Class       Probed   Name
----------------------------------------
 root        [ + ]    root_driver
 pci         [ + ]    |-- pcie-controller at 01003000
 pci         [ + ]    |   `-- pci_0:2.0
 eth         [   ]    |       `-- e1000#0

After enabling CONFIG_OF_LIVE I noticed the following additional issue:

Apalis TK1 # pci enum
ERROR: tegra-pcie: resource "pads" not found
at u-boot.git/drivers/pci/pci_tegra.c:499/tegra_pcie_parse_dt()

Trying to use a vanilla mainline Linux kernel device tree also did not
help:

U-Boot 2017.07-rc1-00150-gf325a89-dirty (Jun 09 2017 - 14:33:21 +0200)

TEGRA124
DRAM:  2 GiB
ERROR: tegra-xusb-padctl: failed to parse "nvidia,lanes" property
at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
tegra/tegra124/../xusb-padctl-
common.c:87/tegra_xusb_padctl_group_parse_dt()
ERROR: tegra-xusb-padctl: failed to parse group usb2
at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
tegra/tegra124/../xusb-padctl-
common.c:237/tegra_xusb_padctl_config_parse_dt()
ERROR: tegra-xusb-padctl: failed to parse entry pads: -22
at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
tegra/tegra124/../xusb-padctl-common.c:270/tegra_xusb_padctl_parse_dt()
ERROR: tegra-xusb-padctl: failed to parse "nvidia,lanes" property
at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
tegra/tegra124/../xusb-padctl-
common.c:87/tegra_xusb_padctl_group_parse_dt()
ERROR: tegra-xusb-padctl: failed to parse group usb2-0
at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
tegra/tegra124/../xusb-padctl-
common.c:237/tegra_xusb_padctl_config_parse_dt()
ERROR: tegra-xusb-padctl: failed to parse entry ports: -22
at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
tegra/tegra124/../xusb-padctl-common.c:270/tegra_xusb_padctl_parse_dt()

Just the order of the SDHCI controllers changed:

Apalis TK1 # mmc dev 2; mmc info
tegra_mmc_send_cmd_bounced: MMC Timeout
    Interrupt status        0x00000001
    Interrupt status enable 0xffff003b
    Interrupt signal enable 0xffff0002
    Present status          0x01fb02f6
mmc_init: -1, time 8066

But PCIe enumeration still fails:

Apalis TK1 # pci enum
ERROR: tegra-pcie: resource "pads" not found
at /run/media/zim/Build/Sources/u-
boot.git/drivers/pci/pci_tegra.c:499/tegra_pcie_parse_dt()

Let me know should you require any additional information.

> Regards,
> Simon

Cheers

Marcel