Hi Rai, On Wed, 30 May 2018 at 19:25, Ray Jui <ray....@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.pe...@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.pe...@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 > >
