linux-kernel - [PATCH v5 3/8] ARM: brcmstb: add debug UART for earlyprintk support

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Date:	Tue, 21 Jan 2014 19:30:47 -0800
From:	Marc Carino <marc.ceeeee@...il.com>
To:	Christian Daudt <bcm@...thebug.org>, Arnd Bergmann <arnd@...db.de>
Cc:	Florian Fainelli <f.fainelli@...il.com>,
	Matt Porter <matt.porter@...aro.org>,
	Russell King <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, Marc Carino <marc.ceeeee@...il.com>
Subject: [PATCH v5 3/8] ARM: brcmstb: add debug UART for earlyprintk support

Add the UART definitions needed to support earlyprintk on brcmstb machines.

Signed-off-by: Marc Carino <marc.ceeeee@...il.com>
Acked-by: Florian Fainelli <f.fainelli@...il.com>
---
 arch/arm/Kconfig.debug |   16 +++++++++++++++-
 1 files changed, 15 insertions(+), 1 deletions(-)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 5765abf..666afd7 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -94,6 +94,17 @@ choice
 		depends on ARCH_BCM2835
 		select DEBUG_UART_PL01X
 
+	config DEBUG_BRCMSTB_UART
+		bool "Use BRCMSTB UART for low-level debug"
+		depends on ARCH_BRCMSTB
+		select DEBUG_UART_8250
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to the first serial port on these devices.
+
+		  If you have a Broadcom STB chip and would like early print
+		  messages to appear over the UART, select this option.
+
 	config DEBUG_CLPS711X_UART1
 		bool "Kernel low-level debugging messages via UART1"
 		depends on ARCH_CLPS711X
@@ -1008,6 +1019,7 @@ config DEBUG_UART_PHYS
 	default 0xd4018000 if DEBUG_MMP_UART3
 	default 0xe0000000 if ARCH_SPEAR13XX
 	default 0xf0000be0 if ARCH_EBSA110
+	default 0xf0406b00 if DEBUG_BRCMSTB_UART
 	default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
 	default 0xf1012000 if ARCH_DOVE || ARCH_KIRKWOOD || ARCH_MV78XX0 || \
 				ARCH_ORION5X
@@ -1040,6 +1052,7 @@ config DEBUG_UART_VIRT
 	default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
 	default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
 	default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
+	default 0xfc406b00 if DEBUG_BRCMSTB_UART
 	default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
 	default 0xfd000000 if ARCH_SPEAR13XX
 	default 0xfd012000 if ARCH_MV78XX0
@@ -1091,7 +1104,8 @@ config DEBUG_UART_8250_WORD
 	default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \
 		ARCH_KEYSTONE || \
 		DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
-		DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_DAVINCI_TNETV107X_UART1
+		DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_DAVINCI_TNETV107X_UART1 || \
+		DEBUG_BRCMSTB_UART
 
 config DEBUG_UART_8250_FLOW_CONTROL
 	bool "Enable flow control for 8250 UART"
-- 
1.7.1

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