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:
- The gmc clk register, to do this download mmio_dump from:
Working GBit: 01c20164: 00000c06
Broken GBit: tomorrow :)
- 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?
- 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