[poky] [PATCH v1] u-boot/beaglebone: Select Beaglebone Black target specifically.
Kristian Amlie
kristian.amlie at mender.io
Tue Dec 20 00:10:40 PST 2016
On 19/12/16 17:03, Ed Bartosh wrote:
> On Mon, Dec 19, 2016 at 09:14:58AM +0100, Kristian Amlie wrote:
>> On 16/12/16 15:28, Ed Bartosh wrote:
>>> On Fri, Dec 16, 2016 at 08:32:48AM +0100, Kristian Amlie wrote:
>>>> The am335x_evm_config target has a subtle problem which is not present
>>>> in the am335x_boneblack_config target: When booting from an external
>>>> MMC card, the internal MMC is not accessible using the former target.
>>>>
>>>> This problem was introduced in U-Boot in commit 80b24fcd3083515e6b961,
>>>> due to the addition of the CONFIG_DM_MMC option, and the
>>>> am335x_boneblack_config target does not have this problem.
>>>>
>>>> Signed-off-by: Kristian Amlie <kristian.amlie at mender.io>
>>>> ---
>>>> meta-yocto-bsp/conf/machine/beaglebone.conf | 2 +-
>>>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>>>
>>>> diff --git a/meta-yocto-bsp/conf/machine/beaglebone.conf b/meta-yocto-bsp/conf/machine/beaglebone.conf
>>>> index fc6a527..24a95b4 100644
>>>> --- a/meta-yocto-bsp/conf/machine/beaglebone.conf
>>>> +++ b/meta-yocto-bsp/conf/machine/beaglebone.conf
>>>> @@ -31,7 +31,7 @@ KERNEL_EXTRA_ARGS += "LOADADDR=${UBOOT_ENTRYPOINT}"
>>>>
>>>> SPL_BINARY = "MLO"
>>>> UBOOT_SUFFIX = "img"
>>>> -UBOOT_MACHINE = "am335x_evm_config"
>>>> +UBOOT_MACHINE = "am335x_boneblack_config"
>>>> UBOOT_ENTRYPOINT = "0x80008000"
>>>> UBOOT_LOADADDRESS = "0x80008000"
>>>>
>>>
>>> Would this work for Beaglebone white?
>>
>> I don't have one, so unfortunately I can't test it. However, the
>> beagleboard.org site states that the differences between the two are the
>> on-board USB JTAG and serial adapters. Looking at the differences of the
>> two configs I can't find anything obvious that would influence this
>> (I'll admit that I don't fully understand all the options though).
>>
>
> I don't understand it neither. I'm just worrying that we can break
> support for BBW, which is mentioned in README.hardware as poky reference hardware.
I have sent an email to the U-Boot mailing list to ask.
--
Kristian
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