Genode on i.MX6Q Sabre Lite
Yevgeny Lavrov
ylavrov13 at ...9...
Thu Mar 23 04:10:39 CET 2017
I've made the necessary changes to UART variables, and lowered the amount
of RAM by making RAM0_SIZE = 0x20000000. After executing the image.elf on
Sabre Lite, I got the following output:
## Starting application at 0x10001000
...
:virt_alloc: Allocator 0x200f40b4
dump:
Block: [0x1000,0x10001000] size=0x10000000 avail=0x10000000
max_avail=0x10000000
Block: [0x105ad000,0x20001000] size=0xfa54000 avail=0xfa54000
max_avail=0xbfe5b000
Block: [0x201a4000,0x201a5000] size=0x1000 avail=0x0
max_avail=0x0
Block: [0x201a5000,0xe0000000] size=0xbfe5b000 avail=0xbfe5b000
max_avail=0xbfe5b000
Block: [0xf0004000,0xf0005000] size=0x1000 avail=0x0
max_avail=0xbfe5b000
Block: [0xf0007000,0xf0008000] size=0x1000 avail=0x0
max_avail=0x0
Block: [0xf0009000,0xf000a000] size=0x1000 avail=0x0
max_avail=0xffe5000
Block: [0xf000a000,0xfffef000] size=0xffe5000 avail=0xffe5000
max_avail=0xffe5000
=> mem_size=4018765824 (3832 MB) / mem_avail=4018749440 (3832
MB)
:phys_alloc: Allocator 0x200f3048
dump:
Block: [0x1061f000,0x10620000] size=0x1000 avail=0x0
max_avail=0x0
Block: [0x10620000,0x10621000] size=0x1000 avail=0x0
max_avail=0x1f9dd000
Block: [0x10621000,0x10622000] size=0x1000 avail=0x0
max_avail=0x0
Block: [0x10622000,0x10623000] size=0x1000 avail=0x0
max_avail=0x1f9dd000
Block: [0x10623000,0x30000000] size=0x1f9dd000 avail=0x1f9dd000
max_avail=0x1f9dd000
=> mem_size=530452480 (505 MB) / mem_avail=530436096 (505
MB)
:io_mem_alloc: Allocator 0x200f512c
dump:
Block: [0x0,0x1061f000] size=0x1061f000 avail=0x1061f000
max_avail=0xcfffffff
Block: [0x30000000,0xffffffff] size=0xcfffffff avail=0xcfffffff
max_avail=0xcfffffff
=> mem_size=3764514815 (3590 MB) / mem_avail=3764514815 (3590
MB)
:io_port_alloc: Allocator 0x200f6198
dump:
=> mem_size=0 (0 MB) / mem_avail=0 (0
MB)
:irq_alloc: Allocator 0x200f7204
dump:
Block: [0x0,0x1] size=0x1 avail=0x1
max_avail=0x1
Block: [0x2,0x1d] size=0x1b avail=0x1b
max_avail=0x3e2
Block: [0x1e,0x400] size=0x3e2 avail=0x3e2
max_avail=0x3e2
=> mem_size=1022 (0 MB) / mem_avail=1022 (0
MB)
:rom_fs: ROM
modules:
ROM: [101a6000,101a6158)
config
ROM: [10182000,101a2178)
init
ROM: [10105000,101819a4) ld.lib.so
ROM: [101a3000,101a5598)
test-log
kernel
initialized
Genode
17.02
504 MiB RAM assigned to
init
[init -> test-log] hex range:
[0e00,1680)
[init -> test-log] empty hex range: [0abc0000,0abc0000)
(empty!)
[init -> test-log] hex range to limit:
[f8,ff]
[init -> test-log] invalid hex range: [f8,08)
(overflow!)
[init -> test-log] negative hex char:
0xfe
[init -> test-log] positive hex char:
0x02
[init -> test-log] multiarg string: "parent ->
child.7"
[init -> test-log] String(Hex(3)):
0x3
[init -> test-log] Test done.
Is this the desired output from "log"?
Thanks
On Wed, Mar 22, 2017 at 6:56 AM, Stefan Kalkowski <
stefan.kalkowski at ...1...> wrote:
> Hi,
>
> On 03/22/2017 08:14 AM, Yevgeny Lavrov wrote:
> > Hi
> >
> > Thanks for the hint. You're correct about the UART, they are different.
> > Wand uses UART1 = 0x02020000 while Sabre Lite uses UART2 which is
> 0x021e800.
> > I tried Genode 15.02 from the institute of
> > Madras:|https://github.com/iitmadras/genode/tree/hw_sabrelite_tz_support
> > <https://github.com/iitmadras/genode/tree/hw_sabrelite_tz_support>|,
> > simple run/printf for now, and it works. I currently use it as a
> > reference. After comparing board_base.h files for i.MX6 platform, I
> > noticed that specifically for Sabre Lite the values in the board_base.h
> > from Madras are set to:
> >
> > UART_1_IRQ = 57,
> > UART_1_MMIO_BASE = 0x021e8000,
> >
> > while for Wandboard, they are the same as in Genode 17.02.
> >
> > I don't think that adjusting UART will be as simple as copying these
> > values over to Genode 17.02
> > /repos/base/include/spec/imx6/drivers/board_base.h So if there are any
> > other files involved, would you please tell me what those files are so I
> > know exactly what to look for?
>
> well, if you just want to adjust the code to replace the Wandboard
> definitions with your i.MX 6Q Sabre Lite, it is actually that simple.
> You only have to change the settings in above mentioned file with in the
> 17.02 release.
>
> If you want to add support of your board beside of the Wandboard
> support, you will have to insert a new layer of board definition. But
> being in your position I would first change the current Wandboard
> settings to see whether it works in general.
>
> >
> > How would I lower the RAM size for my build, and what files are involved?
>
> It is the very same file. You have to change the value of RAM0_SIZE.
>
> Regards
> Stefan
>
> >
> > Thank you
> >
> > On Thu, Mar 2, 2017 at 4:53 AM, Stefan Kalkowski
> > <stefan.kalkowski at ...1...
> > <mailto:stefan.kalkowski at ...1...>> wrote:
> >
> > Hi,
> >
> > well, just because both boards Wandboard and i.MX 6Q Sabre Lite are
> > using the same system-on-chip (SoC) does not mean they are
> identical. So
> > if you are hesitant to start instrumenting the startup code, e.g.,
> via
> > additional log() calls, you can at least compare the high level
> > description of the boards. One main issue is which memory slots are
> used
> > by which board, and which UART within the SoC is used for the serial
> > line connector of the board.
> >
> > One thing that was striking me first when looking at high-level
> > description of the Sabre Lite board is that is has just 1 GB of RAM,
> > whereby the Wandboard has 2 GB. This is obviously an issue. When
> > lowering the RAM size for your setup you potentially will get one
> step
> > ahead. But if they are using different UARTs you will not see any log
> > message anyway. In that case you have to check whether both boards
> use
> > the same UART.
> >
> > Regards
> > Stefan
> >
> > On 03/01/2017 08:28 PM, Yevgeny Lavrov wrote:
> > > Hello
> > >
> > > Is there anything from Genode that I can try on i.MX6Q Sabre Lite
> > > development board? So far I've already attempted *log* image that
> I've
> > > obtained from compiling Genode for i.MX6 based Wandboard. The
> fastboot
> > > option that gets executed after *$ make run/log *resulted in
> > nothing, so
> > > I've also tried to copy the created images onto SD Card and run
> them
> > > directly on the board.
> > >
> > > Steps:
> > > Once in u-boot prompt
> > >
> > > => fatload mmc 0 0x30000000 image.elf
> > > reading
> > > image.elf
> > >
> > > 1716880 bytes read in 107 ms (15.3 MiB/s)
> > > => bootelf 0x30000000
> > > ## Starting application at 0x10001000 ...
> > >
> > > Then the terminal hangs w/o any output.
> > >
> > > Same thing happens when executing uImage
> > > => fatload mmc 0 0x30000000 uImage
> > > reading uImage
> > > 594679 bytes read in 48 ms (11.8 MiB/s)
> > > => bootm 0x30000000
> > >
> > > Terminal hangs once it reaches: Starting kernel ...
> > >
> > > Any suggestions on what's wrong?
> > >
> > > Thank you
> > >
> > >
> > >
> > >
> > >
> > ------------------------------------------------------------
> ------------------
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> > >
> > >
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> > >
> >
> > --
> > Stefan Kalkowski
> > Genode Labs
> >
> > https://github.com/skalk · http://genode.org/
> >
> > ------------------------------------------------------------
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> >
> >
> >
> >
> > ------------------------------------------------------------
> ------------------
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> >
> >
> >
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>
> --
> Stefan Kalkowski
> Genode Labs
>
> https://github.com/skalk · http://genode.org/
>
> ------------------------------------------------------------
> ------------------
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