[PATCH 3/4] ARM: debug: msm: Add DEBUG_LL support for ARCH_MSM8974

From: Rohit Vaswani
Date: Thu Oct 03 2013 - 19:06:36 EST


Add debug uart support for MSM8974. This patch adds a Kconfig
entry and the base address for the debug uart.

Signed-off-by: Rohit Vaswani <rvaswani@xxxxxxxxxxxxxx>
---
arch/arm/Kconfig.debug | 9 +++++++++
arch/arm/include/debug/msm.S | 5 +++++
2 files changed, 14 insertions(+)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index e18a6fc..959b2c7 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -357,6 +357,15 @@ choice
Say Y here if you want the debug print routines to direct
their output to the serial port on MSM 8960 devices.

+ config DEBUG_MSM8974_UART
+ bool "Kernel low-level debugging messages via MSM 8974 UART"
+ depends on ARCH_MSM8974
+ select MSM_HAS_DEBUG_UART_HS
+ select DEBUG_MSM_UART
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the serial port on MSM 8974 devices.
+
config DEBUG_MVEBU_UART
bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
depends on ARCH_MVEBU
diff --git a/arch/arm/include/debug/msm.S b/arch/arm/include/debug/msm.S
index 9166e1b..9d653d4 100644
--- a/arch/arm/include/debug/msm.S
+++ b/arch/arm/include/debug/msm.S
@@ -46,6 +46,11 @@
#define MSM_DEBUG_UART_PHYS 0x16440000
#endif

+#ifdef CONFIG_DEBUG_MSM8974_UART
+#define MSM_DEBUG_UART_BASE 0xFA71E000
+#define MSM_DEBUG_UART_PHYS 0xF991E000
+#endif
+
.macro addruart, rp, rv, tmp
#ifdef MSM_DEBUG_UART_PHYS
ldr \rp, =MSM_DEBUG_UART_PHYS
--
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