[Arm-netbook] Double checking script.fex for eoma68-a20

[luke.leighton]

great, martin - can you add that to the wiki plese?  anyhow you can.  thanks

On Wed, Oct 30, 2013 at 6:35 AM, martin brook
<martin.brook100 at googlemail.com> wrote:
> I had more luck with this .fex
> http://www.gplsquared.com/eoma_boot/script.fex_2013_09_17
>
>
>
> On Wed, Oct 30, 2013 at 6:00 AM, luke.leighton <luke.leighton at gmail.com>
> wrote:
>>
>> On Wed, Oct 30, 2013 at 2:08 AM, Ryan Mullen <rmmullen at gmail.com> wrote:
>> > Hi,
>> >
>> > I am booting an eoma68-a20 using the script.fex (converted to
>> > script.bin with sunxi-tools' fex2bin) found here:
>> >
>> > http://rhombus-tech.net/allwinner/a20/boot/script.fex
>> >
>> > I have run the instructions found on that page under the subtitle
>> > "setup boot instructions for booting directly off of sd/mmc" and all
>> > seems well.
>> >
>> > However, my kernel (linux-sunxi 3.4 with some custom config options)
>> > tells me this when booting:
>> >
>> > [    1.663649] [mmc-msg] sw_mci_init
>> > [    1.667156] [mmc-msg] get mmc1's IO(det) failed
>> > [    1.671684] [mmc-msg] Not using mmc1 due to script.bin parse failure
>> > [    1.678123] [mmc-msg] MMC host used card: 0x9, boot card: 0x0,
>> > io_card 8
>> > [    1.685471] [mmc-msg] sdc0 set round clock 400000, src 24000000
>> > [    1.691708] [mmc-msg] sdc0 set ios: clk 0Hz bm OD pm OFF vdd 3.3V
>> > width 1 timing LEGACY(SDR12) dt B
>> > [    1.702062] [mmc-msg] sdc0 Probe: base:0xf0034000 irq:64
>> > sg_cpu:ffdfb000(4fc00000) ret 0.
>> > [    1.710382] [mmc-msg] sdc3 set round clock 400000, src 24000000
>> > [    1.716717] [mmc-msg] sdc3 set ios: clk 0Hz bm OD pm OFF vdd 3.3V
>> > width 1 timing LEGACY(SDR12) dt B
>> > [    1.726839] [mmc-msg] sdc3 Probe: base:0xf0036000 irq:67
>> > sg_cpu:ffdfa000(4fc01000) ret 0.
>> >
>> > After I boot an initrd, there are no /dev/mmcblk0 entries in my dev
>> > filesystem. However, I can make it appear if I do the following:
>> >
>> > echo 1 > /proc/driver/sunxi-mmc.3/insert
>> >
>> > This causes the card to be registered at /dev/mmcblk0 as expected.
>> >
>> > Digging deeper, it would seem that the script.fex sets the card-detect
>> > mode for mmc0 and mmc1 both to 1, which is CARD_DETECT_BY_GPIO. The
>> > failure in the kernel log occurs when the script.bin parser tries to
>> > read the "sdc_det" key and doesn't get a valid value describing the
>> > GPIO it should be using, I assume. mmc3 doesn't have that problem
>> > because script.fex sets the card-detect mode to 4, which is manual
>> > mode - this requires me to write a 1 to the control node in the procfs
>> > as I experienced.
>> >
>> > Is the script.fex incomplete?
>>
>>  almost certainly!
>>
>> > What's going on here?
>>
>>  we're reliant on you to help diagnose that!  can you please check the
>> GPIO line when the card is inserted, by using the gpio kernel module
>> (use 3.4 it's easier) flipping it to input and reading the entry?  it
>> could be that the manual-soldering of the mmc card slot was done
>> poorly.
>>
>> l.
>>
>> _______________________________________________
>> arm-netbook mailing list arm-netbook at lists.phcomp.co.uk
>> http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook
>> Send large attachments to arm-netbook at files.phcomp.co.uk
>
>
>
> _______________________________________________
> arm-netbook mailing list arm-netbook at lists.phcomp.co.uk
> http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook
> Send large attachments to arm-netbook at files.phcomp.co.uk