Re: [U-Boot] uboot information

22 Mar 2017

      1/ No, As i am stuck on the mmc (pci controller internal soc),
2/ Now i try to boot on usb key, but i don't see controller usb
Sorry, these are two different problems.
2017-03-22 17:22 GMT+01:00 Simon Glass sjg@chromium.org:
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Hi,
On 22 March 2017 at 08:20, Sébastien Basset sbasset@aviwest.com wrote:
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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
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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
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of boot on sdcard :
It can be found on page 31 of the Braswell** Design In for The Internet
of
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Things (IoT) document 555139.
it's very strange !!??
else i try to boot on usb:
I added node in dts file :
    usb@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
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Thank you for your information.
2017-03-22 14:05 GMT+01:00 Simon Glass sjg@chromium.org:
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Hi,
On 18 March 2017 at 02:25, Sébastien Basset sbasset@aviwest.com
wrote:
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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

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Le 17 mars 2017 19:14, "Simon Glass" sjg@chromium.org a écrit :
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+Bin
Hi Sebastian,
On 17 March 2017 at 11:23, Sébastien Basset sbasset@aviwest.com
wrote:
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Hello,
Sorry for the inconvenience, i have problem for read  mmc on my
board
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with braswell cpu, i would like test on other board, i have nuc
intel
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with
braswell,is there possible when there is already bios to load
uboot ?
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else has any chance, I use coreboot + uboot, i would like run
kernel
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on
sdmmc, but i have an problem for communicate with sdcard. I read
cid
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&
reference of card but when try read SCR(version & bus width) of
card,
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doesn't work . For read scr, it's first Transfer mode in SDMA .i
had
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no
error for read data but buffer is empty, why ?I use coreboot +
uboot,
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i
would like run kernel on sdmmc, but i have an problem for
communicate
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with
sdcard. I read cid & reference of card but when try read
SCR(version
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& bus
width) of card, doesn't work . For read scr, it's first Transfer
mode
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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