From mboxrd@z Thu Jan 1 00:00:00 1970 From: sergei.shtylyov@cogentembedded.com (Sergei Shtylyov) Date: Fri, 2 Oct 2015 17:19:20 +0300 Subject: [PATCH] ARM: debug: add support for alternate 8250 register layout In-Reply-To: <1443787929-19173-1-git-send-email-mans@mansr.com> References: <1443787929-19173-1-git-send-email-mans@mansr.com> Message-ID: <560E9268.60900@cogentembedded.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hello. On 10/2/2015 3:12 PM, Mans Rullgard wrote: > Some SoCs have a UART with a non-standard register layout. This > allows the debug console to work with these. > Signed-off-by: Mans Rullgard > --- > I would have preferred a more accurate description of the UART, but I've > not managed to figure out who the vendor is. You haven't seem the Alchemy datasheets? I can send you some if so. > --- > arch/arm/Kconfig.debug | 4 ++++ > arch/arm/include/debug/8250.S | 12 ++++++++++++ > 2 files changed, 16 insertions(+) > > diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug > index 0cfd7f9..8d5c837 100644 > --- a/arch/arm/Kconfig.debug > +++ b/arch/arm/Kconfig.debug > @@ -1597,6 +1597,10 @@ config DEBUG_UART_8250_WORD > DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \ > DEBUG_BRCMSTB_UART > > +config DEBUG_UART_8250_AU > + bool "8250 UART has Alchemy register layout" > + depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 > + So Alchemy UART got reused on ARM? MBR, Sergei