[U-Boot] uboot information

[Simon Glass]

Hi,

On 22 March 2017 at 08:20, Sébastien Basset <sbasset at aviwest.com> wrote:
> hi,
>
> i see controller:
>
>        src/soc/intel/braswell/chip.c/enable_dev ( Intel Braswell SoC ),
> type: 2
>        vendor: 0x8086. device: 0x2296
>        class: 0x08 Generic system peripheral
>        subclass: 0x05 SD Host controller
>        prog: 0x01
>        revision: 0x35
>        src/soc/intel/braswell/southcluster.c/southcluster_enable_dev ( Intel
> Braswell SoC )
>        PCI: 00:12.0 [8086/2296] ops
>        PCI: 00:12.0 [8086/2296] enabled
>
> but i can't test sdcard in coreboot ...
>
> i had intel back on this issue, on braswell 3160 version, it's not possible
> of boot on sdcard :
> It can be found on page 31 of the Braswell** Design In for The Internet of
> Things (IoT) document 555139.
>
> it's very strange !!??
>
> else i try to boot on usb:
>
> I added node in dts file :
>
>         usb at 14,0 {
>             reg = <0x000a0000 0 0 0 0>;
>             compatible = "xhci-pci";
>         };
>
> is there another step for see controller with usb start command ?

I thought you said it was MMC...do you mean it is a USB controller
with an USB->MMC device?

Regards,
Simon


>
> Thank you for your information.
>
>
>
>
> 2017-03-22 14:05 GMT+01:00 Simon Glass <sjg at chromium.org>:
>>
>> Hi,
>>
>> On 18 March 2017 at 02:25, Sébastien Basset <sbasset at aviwest.com> wrote:
>> > Hi,
>> >
>> > Coreboot load uboot as payload.
>>
>> Does the MMC work OK in coreboot?
>>
>> It is possible to load U-Boot from UEFI if that helps?
>>
>> - Simon
>>
>> >
>> > Le 17 mars 2017 19:14, "Simon Glass" <sjg at chromium.org> a écrit :
>> >>
>> >> +Bin
>> >>
>> >> Hi Sebastian,
>> >>
>> >> On 17 March 2017 at 11:23, Sébastien Basset <sbasset at aviwest.com>
>> >> wrote:
>> >> >
>> >> > Hello,
>> >> >
>> >> > Sorry for the inconvenience, i have problem for read  mmc on my board
>> >> > with braswell cpu, i would like test on other board, i have nuc intel
>> >> > with
>> >> > braswell,is there possible when there is already bios to load uboot ?
>> >> >
>> >> > else has any chance, I use coreboot + uboot, i would like run kernel
>> >> > on
>> >> > sdmmc, but i have an problem for communicate with sdcard. I read cid
>> >> > &
>> >> > reference of card but when try read SCR(version & bus width) of card,
>> >> > doesn't work . For read scr, it's first Transfer mode in SDMA .i had
>> >> > no
>> >> > error for read data but buffer is empty, why ?I use coreboot + uboot,
>> >> > i
>> >> > would like run kernel on sdmmc, but i have an problem for communicate
>> >> > with
>> >> > sdcard. I read cid & reference of card but when try read SCR(version
>> >> > & bus
>> >> > width) of card, doesn't work . For read scr, it's first Transfer mode
>> >> > in
>> >> > SDMA .i had no error for read data but buffer is empty, why ?
>> >>
>> >> Just to be clear, are you running U-Boot on top of Coreboot?
>> >>
>> >> Regards,
>> >> Simon
>
>