[U-Boot] [PATCH] Add CONFIG_GMAC_TX_DELAY=4 for OlinuXino Lime2

[Michael Haas <haas@computerlinguist.org>]

On 03/17/2016 11:52 AM, Hans de Goede wrote:
> Hi,
>
> There are 3 things which would be interesting to save and compare
> with a boot which does have the problem:
>
> 1) The gmc clk register, to do this download mmio_dump from:
>
>

Working GBit:
01c20164: 00000c06

Broken GBit:
tomorrow :)

>
> 2) The pmic settings for various ldo-s, etc. as root run:
>
> i2cdump -f -y 0 0x34
> And record the output. You may need to
> install i2c-tools (or the deb. alternative) and
> do "modprobe i2c_dev"
>

I had to download the Debian kernel package on another box, extract the
.ko, transfer and insmod it. Now I'm getting:

~ # /mnt/usr/sbin/i2cdump -f -y 0 0x34
No size specified (using byte-data access)
Error: Could not open file `/dev/i2c-0': No such device


I did mknod the devices, but I'm getting the same error msg:


~ # ls -al /dev/i2c-*
crw-r--r--    1 root     root       89,   0 Mar 17 21:31 /dev/i2c-0
crw-r--r--    1 root     root       89,   1 Mar 17 21:31 /dev/i2c-1
~ #

Module                  Size  Used by
i2c_dev                 7087  0
i2c_sun6i_p2wi          3664  0
dm_mod                 98419  0
md_mod                121938  0
jfs                   175313  0
crc32c_generic          1862  1
btrfs                1068047  0
xor                     4846  1 btrfs
zlib_deflate           20354  1 btrfs
raid6_pq               87885  1 btrfs
vfat                   10249  0
fat                    55086  1 vfat
ext4                  552524  2
crc16                   1274  1 ext4
mbcache                 9623  1 ext4
jbd2                   96157  1 ext4
usb_storage            45523  0
ahci_sunxi              2851  0
libahci_platform        6430  1 ahci_sunxi
libahci                23066  2 libahci_platform,ahci_sunxi
libata                182871  3 libahci,libahci_platform,ahci_sunxi
scsi_mod              188073  2 usb_storage,libata
realtek                 2711  0
dwmac_sunxi             2431  0
stmmac_platform         3302  1 dwmac_sunxi
stmmac                 74687  3 stmmac_platform,dwmac_sunxi
ohci_platform           4658  0
ohci_hcd               38045  1 ohci_platform
ehci_platform           5398  0
ehci_hcd               63999  1 ehci_platform
usbcore               190581  5
usb_storage,ohci_platform,ohci_hcd,ehci_hcd,ehci_platform
usb_common              3195  1 usbcore
phy_sun4i_usb           7858  8
extcon                 10436  1 phy_sun4i_usb
sunxi_mmc              11288  0
leds_gpio               3606  0


I also loaded i2c_sun6i_p2wi  for good measure. Any idea what's missing
here?


> 3) The phy settings, unfortunately I do not know of
> a way to dump these, so lets just forget about these
> and focus on the other 2.
>
I might even look at the data sheet tomorrow if time permits.

Michael


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