This patch adds low level debug uart support to Broadcom
mobile based SOCs.
Signed-off-by: Christian Daudt <c...@broadcom.com>
Changes from V1:
- Switched to use the common 8250 debug introduced in 3.12-rc1
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 9762c84..0523e71 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_BCM_KONA_UART
+ bool "Kernel low-level debugging messages via BCM KONA UART"
+ depends on ARCH_BCM
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Broadcom SoC platforms.
+ This low level debug works for Broadcom
+ mobile SoCs in the Kona family of chips (e.g. bcm28155,
+ bcm11351, etc...)
+
config DEBUG_CLPS711X_UART1
bool "Kernel low-level debugging messages via UART1"
depends on ARCH_CLPS711X
@@ -980,6 +991,7 @@ config DEBUG_UART_PHYS
default 0xffd82340 if ARCH_IOP13XX
default 0xfff36000 if DEBUG_HIGHBANK_UART
default 0xfffff700 if ARCH_IOP33X
+ default 0x3e000000 if DEBUG_BCM_KONA_UART
depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
DEBUG_UART_8250 || DEBUG_UART_PL01X
@@ -1035,6 +1047,7 @@ config DEBUG_UART_VIRT
default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
default 0xfefff700 if ARCH_IOP33X
default 0xff003000 if DEBUG_U300_UART
+ default 0xfe300000 if DEBUG_BCM_KONA_UART
default DEBUG_UART_PHYS if !MMU
depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
DEBUG_UART_8250 || DEBUG_UART_PL01X
@@ -1052,7 +1065,8 @@ 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_BCM_KONA_UART
config DEBUG_UART_8250_FLOW_CONTROL
bool "Enable flow control for 8250 UART"
diff --git a/arch/arm/configs/bcm_defconfig b/arch/arm/configs/bcm_defconfig
index 6e49310..5c12c4c 100644
--- a/arch/arm/configs/bcm_defconfig
+++ b/arch/arm/configs/bcm_defconfig
@@ -30,6 +30,8 @@ CONFIG_ARCH_BCM=y
CONFIG_ARM_THUMBEE=y
CONFIG_ARM_ERRATA_743622=y
CONFIG_PREEMPT=y
+CONFIG_DEBUG_LL=y
+CONFIG_DEBUG_BCM_KONA_UART=y
CONFIG_AEABI=y
# CONFIG_OABI_COMPAT is not set
# CONFIG_COMPACTION is not set
--
1.7.10.4
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