[U-Boot] [PATCH V2 0/7] ARM: imx: Update Novena to DM/DT

[Vagrant Cascadian]

On 2019-06-04, Vagrant Cascadian wrote:
> On 2019-05-17, Marek Vasut wrote:

Retried with a build from:

  https://github.com/marex/u-boot-imx/tree/imx-dm
  commit:7a381bb7edfd43aefc1dbfea6d574234ef9d7771

Which contains the two patchsets needed.


> I have two oustanding issues... with some files it sometimes fails to
> load one or more from SATA:
>
> Retrieving file: /boot/initrd.img-5.0.0-trunk-armmp
> 20077960 bytes read in 375 ms (51.1 MiB/s)
> Retrieving file: /boot/vmlinuz-5.0.0-trunk-armmp
> 4215296 bytes read in 40 ms (100.5 MiB/s)
> append: root=UUID=9666ab0b-f932-4e2f-95d7-0e96a12a4540 ro quiet
> Retrieving file: /usr/lib/linux-image-5.0.0-trunk-armmp/imx6q-novena.dtb
> CACHE: Misaligned operation at range [fafb5398, fafb6398]
> CACHE: Misaligned operation at range [fafb5398, fafb6398]
> ERROR: v7_outer_cache_inval_range - start address is not aligned -
> 0xfafb5398
> ERROR: v7_outer_cache_inval_range - stop address is not aligned -
> 0xfafb6398
> invalid extent block
>
> It then falls back to one of the other kernels (using the extlinux.conf
> parsing) and succeeds. It consistantly gets a cache/alignment error with
> this specific file. A bit-for-bit identical .dtb loaded from another
> path works just fine. Older versions of u-boot boot this fine. Would
> some particular EXT4 flag possibly be causing issues?
>
> Several other kernel+initrd+dtb combinations work fine.

Running "dcache off" before booting still produces the warnings/errors,
but actually does boot successfully. Of course, it's much slower.


> The second issue is still using one out of four exposed USB ports fails
> and resets the board:
>
> load usb 0:1 $kernel_addr_r misc/Binaries/linux/Image
> data abort
> pc : [<fefbb67a>]          lr : [<fefbb0fd>]
> reloc pc : [<1783367a>]    lr : [<178330fd>]
> sp : faf7c6e8  ip : 00000003     fp : 00000005
> r10: faf8b200  r9 : faf87ea0     r8 : 00000001
> r7 : faf8b2c0  r6 : f9f7a040     r5 : faf7c710  r4 : 00000038
> r3 : 0000006d  r2 : f9f7a0a3     r1 : faf8b32c  r0 : f9f7a09f
> Flags: nzCv  IRQs off  FIQs off  Mode SVC_32
> Code: 4630fc5b 81f0e8bd e7d84606 bf082b2f (f822235c)
> Resetting CPU ...
>
> The three other usb ports work just fine with the same USB stick and
> file. All four ports work with 2019.01.

Got a bit-for-bit identical error on this one.

I was able to get the objdump output with the reloc pc value:

  $ arm-linux-gnueabihf-objdump -d u-boot | grep 178337aa
  178337aa:       f822 3b02       strh.w  r3, [r2], #2

Hope that's helpful!


live well,
  vagrant

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