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SubjectRe: [PATCH v2 1/2] ARM: debug: Add Iproc UART3 debug addresses
Hi Rai,

On Wed, 30 May 2018 at 19:25, Ray Jui <ray.jui@broadcom.com> wrote:
>
> Hi Clément,
>
> Correct me if I'm wrong, but I thought the trend is to move to use
> earlycon that can be activated from kernel command line for early print
> before the serial driver is loaded.
>
> Have you tried earlcon?
No, only tested this method.

Thanks,
Clement

>
> Thanks,
>
> Ray
>
> On 5/30/2018 6:19 AM, Clément Péron wrote:
> > From: Clément Peron <clement.peron@devialet.com>
> >
> > Broadcom Iproc SoCs typically use the UART3 for
> > debug/console, provide a known good location for that.
> >
> > Signed-off-by: Clément Peron <clement.peron@devialet.com>
> > ---
> >
> > arch/arm/Kconfig.debug | 12 +++++++++++-
> > 1 file changed, 11 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> > index 199ebc1c4538..4ea9d5793b91 100644
> > --- a/arch/arm/Kconfig.debug
> > +++ b/arch/arm/Kconfig.debug
> > @@ -207,6 +207,14 @@ choice
> > depends on ARCH_BCM_HR2
> > select DEBUG_UART_8250
> >
> > + config DEBUG_BCM_IPROC_UART3
> > + bool "Kernel low-level debugging on BCM IPROC UART3"
> > + depends on ARCH_BCM_CYGNUS
> > + select DEBUG_UART_8250
> > + help
> > + Say Y here if you want the debug print routines to direct
> > + their output to the third serial port on these devices.
> > +
> > config DEBUG_BCM_KONA_UART
> > bool "Kernel low-level debugging messages via BCM KONA UART"
> > depends on ARCH_BCM_MOBILE
> > @@ -1557,6 +1565,7 @@ config DEBUG_UART_PHYS
> > default 0x18000400 if DEBUG_BCM_HR2
> > default 0x18010000 if DEBUG_SIRFATLAS7_UART0
> > default 0x18020000 if DEBUG_SIRFATLAS7_UART1
> > + default 0x18023000 if DEBUG_BCM_IPROC_UART3
> > default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
> > default 0x20001000 if DEBUG_HIP01_UART
> > default 0x20060000 if DEBUG_RK29_UART0
> > @@ -1676,6 +1685,7 @@ config DEBUG_UART_VIRT
> > default 0xf1002000 if DEBUG_MT8127_UART0
> > default 0xf1006000 if DEBUG_MT6589_UART0
> > default 0xf1009000 if DEBUG_MT8135_UART3
> > + default 0xf1023000 if DEBUG_BCM_IPROC_UART3
> > default 0xf11f1000 if DEBUG_VERSATILE
> > default 0xf1600000 if DEBUG_INTEGRATOR
> > default 0xf1c28000 if DEBUG_SUNXI_UART0
> > @@ -1791,7 +1801,7 @@ config DEBUG_UART_8250_WORD
> > DEBUG_KEYSTONE_UART0 || DEBUG_KEYSTONE_UART1 || \
> > DEBUG_ALPINE_UART0 || \
> > DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
> > - DEBUG_DAVINCI_DA8XX_UART2 || \
> > + DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_BCM_IPROC_UART3 || \
> > DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
> >
> > config DEBUG_UART_8250_PALMCHIP
> >

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