[U-Boot] [PATCH] MX: serial_mxc: cleanup removing nasty #ifdef
Marek Vasut
marek.vasut at gmail.com
Thu Nov 24 01:08:52 CET 2011
> Am 23/11/2011 11:44, schrieb Marek Vasut:
> >> On 23/11/2011 03:48, Jason Hui wrote:
> >>> From the u-boot/README:
> >>>
> >>> * Configuration _OPTIONS_:
> >>> These are selectable by the user and have names beginning with
> >>> "CONFIG_".
> >>>
> >>> * Configuration _SETTINGS_:
> >>> These depend on the hardware etc. and should not be meddled with if
> >>> you don't know what you're doing; they have names beginning with
> >>> "CONFIG_SYS_".
> >>>
> >>> It's better to use #define CONFIG_SYS_MXC_UART_BASE UART1_BASE
> >>>
> >>> [...]
> >>
> >> Agree, I do it in V2
> >>
> >> Best regards,
> >> Stefano Babic
> >
> > But this is not completely right. Why CONFIG_SYS, if the user can change
> > it quite safely to adjust his serial port.
>
> So we have a case where we can use CONFIG_ (because it is an option
> selectable by user) or CONFIG_SYS_ because it depends on HW... I see
> other cases where a CONFIG_ (CONFIG_SERIAL_BASE, CONFIG_FFUART, ..) is
> used to select the UART on different SOCs. And I see also other cases
> with CONFIG_SYS_ (CONFIG_SYS_UART_BASE, for example). Both are currently
> used - I will not change, I think that CONFIG_MXC_UART_BASE explains
> already well what is supposed to do.
Definitelly.
M
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