On 17 January 2015 at 04:10, Siarhei Siamashka
<[email protected]> wrote:
> On Wed, 14 Jan 2015 12:20:12 +0100
> Michal Suchanek <[email protected]> wrote:
>
>> On 14 January 2015 at 11:42, Lars Doelle <[email protected]> wrote:
>> > Hi everyone,
>> >
>> > tuning device configuration for [[Inet K970]], I did not yet find
>> > switches in the mainline kernel for the following features:
>> >
>> > 1) sunxi-keyboard
>>
>> There is a mainline driver and I did not try it so far. The main
>> blocker is that I did not find instruction for fel booting mainline
>> u-boot and kernel. I can upload the u-boot but it searches for some
>> syslinux configuration which is not found. Probably patching the
>> default environment when SPL_FEL is selected would do the trick but
>> did not get to it.
>
> That's why I asked you earlier whether you want to be provided with
> such instructions ;-)
>
> I'm currently using the following u-boot patch for FEL booting u-boot,
> kernel and initramfs (with serial console on MicroSD breakout):
>
> diff --git a/include/configs/sunxi-common.h
> b/include/configs/sunxi-common.h index f7e87a2..e958bd0 100644
> --- a/include/configs/sunxi-common.h
> +++ b/include/configs/sunxi-common.h
> @@ -330,6 +330,11 @@
> CONSOLE_STDIN_SETTINGS \
> CONSOLE_STDOUT_SETTINGS
>
> +#if defined(CONFIG_UART0_PORT_F)
> +#undef BOOTENV
> +#define BOOTENV "bootcmd=source ${scriptaddr}\0"
> +#endif
> +
Yes, I expected that some bit like this is missing because the script
is uploaded over FEL and then ignored by u-boot.
The condition should be CONFIG_SPL_FEL because you want this any time
FEL is used regardless of used uart. Maybe it's mostly safe to use
always because on non-fel boot the area will not have valid u-boot
image.
> #define CONFIG_EXTRA_ENV_SETTINGS \
> CONSOLE_ENV_SETTINGS \
> MEM_LAYOUT_ENV_SETTINGS \
>
>
> The 'boot.scr' file needs to be uploaded to the right location in RAM
> ('scriptaddr', which is currently 0x43100000) using the 'fel' tool too.
Why is this different from the 0x41000000 address used by the old
u-boot and sunxi-tools usb-boot?
The kernel address also differs on mainline so maybe it's time to just
make a separate mainline script.
>
> And the DTB file needs to be patched to move UART0 pins to the SD card
> slot. This DTB patching can be done automatically in u-boot on the
> device (if u-boot is enhanced to implement this functionality), or on
> your PC before uploading it to RAM using the 'fel' tool.
When you are using CONFIG_UART0_PORT_F. Would be nice to have the
automagic DT patching in u-boot since the patching support exists but
that's more cosmetic issue than anything.
The memory script part is way more important.
Thanks
Michal
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