[U-Boot] [PATCH 1/8] arm: K3: Add initial support for TI's K3 generation of SoCs

[Lokesh Vutla]

On Friday 24 August 2018 08:25 PM, Tom Rini wrote:
> On Fri, Aug 24, 2018 at 08:21:19PM +0530, Lokesh Vutla wrote:
>>
>>
>> On Friday 24 August 2018 07:40 PM, Tom Rini wrote:
>>> On Tue, Aug 21, 2018 at 08:00:48PM +0530, Lokesh Vutla wrote:
>>>
>>>> Add support for Texas Instruments' K3 Generation Processor
>>>> families.
>>> [snip]
>>>> diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
>>>> index 9c80090aa7..f48d82f051 100644
>>>> --- a/drivers/serial/ns16550.c
>>>> +++ b/drivers/serial/ns16550.c
>>>> @@ -175,7 +175,7 @@ void NS16550_init(NS16550_t com_port, int baud_divisor)
>>>>  		;
>>>>  
>>>>  	serial_out(CONFIG_SYS_NS16550_IER, &com_port->ier);
>>>> -#if defined(CONFIG_ARCH_OMAP2PLUS)
>>>> +#if defined(CONFIG_ARCH_OMAP2PLUS) || defined(CONFIG_ARCH_K3)
>>>>  	serial_out(0x7, &com_port->mdr1);	/* mode select reset TL16C750*/
>>>>  #endif
>>>>  
>>>> @@ -183,7 +183,8 @@ void NS16550_init(NS16550_t com_port, int baud_divisor)
>>>>  	serial_out(ns16550_getfcr(com_port), &com_port->fcr);
>>>>  	if (baud_divisor != -1)
>>>>  		NS16550_setbrg(com_port, baud_divisor);
>>>> -#if defined(CONFIG_ARCH_OMAP2PLUS) || defined(CONFIG_SOC_DA8XX)
>>>> +#if defined(CONFIG_ARCH_OMAP2PLUS) || defined(CONFIG_SOC_DA8XX) || \
>>>> +	defined(CONFIG_ARCH_K3)
>>>>  	/* /16 is proper to hit 115200 with 48MHz */
>>>>  	serial_out(0, &com_port->mdr1);
>>>>  #endif
>>>
>>> K3 would also be using CONFIG_OMAP_SERIAL once
>>> https://patchwork.ozlabs.org/patch/956252/ is applied (which I'll do in
>>> the next release) yes?  I think 956252 needs a follow-up that changes
>>> the above hunks to be testing off CONFIG_OMAP_SERIAL instead so this
>>
>> I did not make this change because ns16550 is also used by non-DM
>> platforms. Since OMAP_SERIAL is DM specific, converting  this #ifdef to
>> OMAP_SERIAL would break non DM platforms. I guess I should still add ||
>> OMAP_SERIAL. Ill post a v2 for 956252.
> 
> What are the non-DM serial users at this point?
> 

omap4-evm and omap5-uevm are two TI boards which uses non-DM. I am not
sure about non-TI boards with omap SoCs.

Thanks and regards,
Lokesh