Thread (12 messages) 12 messages, 5 authors, 2014-05-21
STALE4423d
Revisions (2)
  1. v1 current
  2. v2 [diff vs current]

[PATCH v1 4/4] ARM: debug: qcom: Add APQ8084 DEBUG_LL UART support

From: Georgi Djakov <hidden>
Date: 2014-05-21 14:58:15
Also in: linux-arm-kernel, linux-arm-msm, lkml
Subsystem: arm port, the rest · Maintainers: Russell King, Linus Torvalds

Add debug UART support for Qualcomm APQ8084 SoC. This patch
adds a Kconfig entry and the base address of the debug UART.

Signed-off-by: Georgi Djakov <redacted>
---
 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 eab8ecb..91d5184 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -101,6 +101,15 @@ choice
 		bool "Kernel low-level debugging on 9263 and 9g45"
 		depends on HAVE_AT91_DBGU1
 
+	config DEBUG_APQ8084_UART
+		bool "Kernel low-level debugging messages via APQ8084 UART"
+		depends on ARCH_QCOM
+		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 Qualcomm APQ8084 devices.
+
 	config DEBUG_BCM2835
 		bool "Kernel low-level debugging on BCM2835 PL011 UART"
 		depends on ARCH_BCM2835
diff --git a/arch/arm/include/debug/msm.S b/arch/arm/include/debug/msm.S
index 9d653d4..178636d 100644
--- a/arch/arm/include/debug/msm.S
+++ b/arch/arm/include/debug/msm.S
@@ -36,6 +36,11 @@
 #define MSM_DEBUG_UART_PHYS	MSM_UART3_PHYS
 #endif
 
+#ifdef CONFIG_DEBUG_APQ8084_UART
+#define MSM_DEBUG_UART_BASE	0xFA75E000
+#define MSM_DEBUG_UART_PHYS	0xF995E000
+#endif
+
 #ifdef CONFIG_DEBUG_MSM8660_UART
 #define MSM_DEBUG_UART_BASE	0xF0040000
 #define MSM_DEBUG_UART_PHYS	0x19C40000
-- 
1.7.9.5
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