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@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

1 files changed, 15 insertions, 1 deletions

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 03dc4c1a8736..6a4ee008b092 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -139,6 +139,17 @@ choice
                   Say Y here if you want kernel low-level debugging support
                   on Marvell Berlin SoC based platforms.
 
+        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
@@ -1153,6 +1164,7 @@ config DEBUG_UART_PHYS
         default 0xe0000000 if ARCH_SPEAR13XX
         default 0xe4007000 if DEBUG_HIP04_UART
         default 0xf0000be0 if ARCH_EBSA110
+        default 0xf040ab00 if DEBUG_BRCMSTB_UART
         default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
         default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
                                 ARCH_ORION5X
@@ -1204,6 +1216,7 @@ config DEBUG_UART_VIRT
         default 0xfb002000 if DEBUG_CNS3XXX
         default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
         default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
+        default 0xfc40ab00 if DEBUG_BRCMSTB_UART
         default 0xfcfe8600 if DEBUG_UART_BCM63XX
         default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
         default 0xfd000000 if ARCH_SPEAR13XX
@@ -1260,7 +1273,8 @@ config DEBUG_UART_8250_WORD
                 ARCH_KEYSTONE || \
                 DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
                 DEBUG_DAVINCI_DA8XX_UART2 || \
-                DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
+                DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
+                DEBUG_BRCMSTB_UART
 
 config DEBUG_UART_8250_FLOW_CONTROL
         bool "Enable flow control for 8250 UART"