[U-Boot] [PATCH 08/11] omap3: cm-t3517: add basic board support

Igor Grinberg
2014-11-05T12:53:03Z

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On 11/05/14 14:23, Tom Rini wrote:
> On Wed, Nov 05, 2014 at 02:16:35PM +0200, Igor Grinberg wrote:
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>> Hi Tom,
>>
>> On 11/04/14 18:46, Tom Rini wrote:
>>> On Mon, Nov 03, 2014 at 11:32:24AM +0200, Igor Grinberg wrote:
>>>
>>>> CompuLab cm-t3517 is Computer on Module (CoM) based on AM3517 SoC.
>>>> Features: up to 256MB DDR2, up to 512MB NAND, USB hub, mUSB, WiFi, BT,
>>>> Analog audio codec, touch screen controller, LED.
>>>>
>>>> Add basic support including:
>>>> LED, Serial console, NAND, MMC, GPIO, I2C, 256MB DRAM.
>>>>
>>>> Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
>>> [snip]
>>>> +/*
>>>> + * The early kernel mapping on ARM currently only maps from the base of DRAM
>>>> + * to the end of the kernel image. The kernel is loaded at DRAM base + 0x8000.
>>>> + * The early kernel pagetable uses DRAM base + 0x4000 to DRAM base + 0x8000,
>>>> + * so that leaves DRAM base to DRAM base + 0x4000 available.
>>>> + */
>>>> +#define CONFIG_SYS_BOOTMAPSZ 0x4000
>>>
>>> The big comment about layout at the top of
>>> include/configs/ti_armv7_common.h applies to omap3 too, are you sure you
>>> want to go in the direction instead? In fact, are you sure you can't /
>>> don't want to leverage that file?
>>
>> Well, the only concern about the using common configurations in general
>> is the breakage it can introduce as changes to those files are never tested
>> on all the boards that include them. Hopefully, this will be (at least
>> partially) solved by defconfigs.
>> As same stands also for fixes, I think we can take the chances.
>> Switching to use the common config file will require some additional checks
>> like undef unneeded stuff and also check the binary size impact.
>> I might be unable to do those soon enough for this patchset to be included
>> in the release.
>
> OK.
>
>>>> +#define CONFIG_SYS_BAUDRATE_TABLE {4800, 9600, 19200, 38400, 57600,\
>>>> + 115200}
>>>
>>> Use the default table?
>>
>> Do you mean the one in ti_omap3_common.h?
>> Well, that is the same question as above (and also the same answer).
>
> Aaand now I have egg on my face, I was referring to
> include/config_fallbacks.h

;-) evil me...

>
>> The question is can we proceed with only the below fixed and I will update
>> the above and common config file inclusion later (also for cm-t35)?
>
> ... maybe. I need to think about it I suppose.

Well, I would be very glad if you decide to take this (of course if no other
problems are spotted) and let me get back to this later, as now I need to
prepare things for my o-o-o next week.

Thanks!

- --
Regards,
Igor.
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